예제 #1
1
 def wait_object_destruction(self, my_object):
     loop = QEventLoop()
     name = my_object.objectName()
     my_object.destroyed.connect(loop.quit)
     loop.exec_()
     self.assertIsNone(find_window(name))
     return None
예제 #2
1
    def testInvalidAuthFileDownload(self):
        """
        Download a protected map tile without authcfg
        """
        qs = "?" + "&".join(["%s=%s" % i for i in list({
            "MAP": urllib.parse.quote(self.project_path),
            "SERVICE": "WMS",
            "VERSION": "1.1.1",
            "REQUEST": "GetMap",
            "LAYERS": "testlayer_èé".replace('_', '%20'),
            "STYLES": "",
            "FORMAT": "image/png",
            "BBOX": "-16817707,-4710778,5696513,14587125",
            "HEIGHT": "500",
            "WIDTH": "500",
            "CRS": "EPSG:3857"
        }.items())])
        url = '%s://%s:%s/%s' % (self.protocol, self.hostname, self.port, qs)

        destination = tempfile.mktemp()
        loop = QEventLoop()

        downloader = QgsFileDownloader(QUrl(url), destination, None, False)
        downloader.downloadCompleted.connect(partial(self._set_slot, 'completed'))
        downloader.downloadExited.connect(partial(self._set_slot, 'exited'))
        downloader.downloadCanceled.connect(partial(self._set_slot, 'canceled'))
        downloader.downloadError.connect(partial(self._set_slot, 'error'))
        downloader.downloadProgress.connect(partial(self._set_slot, 'progress'))

        downloader.downloadExited.connect(loop.quit)

        loop.exec_()

        self.assertTrue(self.error_was_called)
        self.assertTrue("Download failed: Host requires authentication" in str(self.error_args), "Error args is: %s" % str(self.error_args))
예제 #3
0
    def run(self):
        """Run the query.

        @raise OverpassBadRequestException,NetWorkErrorException,
        OverpassTimeoutException

        @return: The result of the query.
        @rtype: str
        """
        loop = QEventLoop()
        downloader = QgsFileDownloader(
            self._url, self.result_path, delayStart=True)
        downloader.downloadExited.connect(loop.quit)
        downloader.downloadError.connect(self.error)
        downloader.downloadCanceled.connect(self.canceled)
        downloader.downloadCompleted.connect(self.completed)
        downloader.startDownload()
        loop.exec_()

        file_obj = codecs.open(self.result_path, 'r', 'utf-8')
        file_obj.seek(0, 2)
        fsize = file_obj.tell()
        file_obj.seek(max(fsize - 1024, 0), 0)
        lines = file_obj.readlines()
        file_obj.close()

        lines = lines[-10:]  # Get last 10 lines
        timeout = '<remark> runtime error: Query timed out in "[a-z]+" ' \
                  'at line [\d]+ after ([\d]+) seconds. </remark>'
        if re.search(timeout, ''.join(lines)):
            raise OverpassTimeoutException
        else:
            return self.result_path
예제 #4
0
    def __sync_request(self, url):
        _url = QUrl(url)
        _request = QNetworkRequest(_url)
        self.__replies.append(_request)

        QgsNetworkAccessManager.instance().sslErrors.connect(self.__supress_ssl_errors)

        _reply = QgsNetworkAccessManager.instance().get(_request)

        # wait
        loop = QEventLoop()
        _reply.finished.connect(loop.quit)
        loop.exec_()
        _reply.finished.disconnect(loop.quit)
        QgsNetworkAccessManager.instance().sslErrors.disconnect(self.__supress_ssl_errors)
        loop = None

        error = _reply.error()
        if error != QNetworkReply.NoError:
            raise Exception(error)

        result_code = _reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)

        result = _reply.readAll()
        self.__replies.append(_reply)
        _reply.deleteLater()

        if result_code in [301, 302, 307]:
            redirect_url = _reply.attribute(QNetworkRequest.RedirectionTargetAttribute)
            return self.__sync_request(redirect_url)
        else:
            return result
예제 #5
0
    def testValidAuthFileDownload(self):
        """
        Download a map tile with valid authcfg
        """
        qs = "?" + "&".join([
            "%s=%s" % i
            for i in list({
                "MAP": urllib.parse.quote(self.project_path),
                "SERVICE": "WMS",
                "VERSION": "1.1.1",
                "REQUEST": "GetMap",
                "LAYERS": "testlayer_èé".replace('_', '%20'),
                "STYLES": "",
                "FORMAT": "image/png",
                "BBOX": "-16817707,-4710778,5696513,14587125",
                "HEIGHT": "500",
                "WIDTH": "500",
                "CRS": "EPSG:3857"
            }.items())
        ])
        url = '%s://%s:%s/%s' % (self.protocol, self.hostname, self.port, qs)

        destination = tempfile.mktemp()
        loop = QEventLoop()

        downloader = QgsFileDownloader(QUrl(url), destination,
                                       self.auth_config.id(), False)
        downloader.downloadCompleted.connect(
            partial(self._set_slot, 'completed'))
        downloader.downloadExited.connect(partial(self._set_slot, 'exited'))
        downloader.downloadCanceled.connect(partial(self._set_slot,
                                                    'canceled'))
        downloader.downloadError.connect(partial(self._set_slot, 'error'))
        downloader.downloadProgress.connect(partial(self._set_slot,
                                                    'progress'))

        downloader.downloadExited.connect(loop.quit)

        loop.exec_()

        # Check the we've got a likely PNG image
        self.assertTrue(self.completed_was_called)
        self.assertTrue(
            os.path.getsize(destination) > 2000,
            "Image size: %s" % os.path.getsize(destination))  # > 1MB
        with open(destination, 'rb') as f:
            self.assertTrue(b'PNG' in f.read())  # is a PNG
예제 #6
0
    def fetchFiles(self, urls):
        self.logT("TileLayer.fetchFiles() starts")
        # create a QEventLoop object that belongs to the current thread (if ver. > 2.1, it is render thread)
        eventLoop = QEventLoop()
        self.logT("Create event loop: " + str(eventLoop))  # DEBUG
        # QObject.connect(self, SIGNAL("allRepliesFinished()"), eventLoop.quit)
        self.allRepliesFinished.connect(eventLoop.quit)

        # create a timer to watch whether rendering is stopped
        watchTimer = QTimer()
        watchTimer.timeout.connect(eventLoop.quit)

        # send a fetch request to the main thread
        # self.emit(SIGNAL("fetchRequest(QStringList)"), urls)
        self.fetchRequest.emit(urls)

        # wait for the fetch to finish
        tick = 0
        interval = 500
        timeoutTick = self.downloadTimeout / interval
        watchTimer.start(interval)
        while tick < timeoutTick:
            # run event loop for 0.5 seconds at maximum
            eventLoop.exec_()

            if debug_mode:
                qDebug("watchTimerTick: %d" % tick)
                qDebug("unfinished downloads: %d" % self.downloader.unfinishedCount())

            if self.downloader.unfinishedCount() == 0 or self.renderContext.renderingStopped():
                break
            tick += 1
        watchTimer.stop()

        if tick == timeoutTick and self.downloader.unfinishedCount() > 0:
            self.log("fetchFiles timeout")
            # self.emitShowBarMessage("fetchFiles timeout", duration=5)   #DEBUG
            self.downloader.abort()
            self.downloader.errorStatus = Downloader.TIMEOUT_ERROR
        files = self.downloader.fetchedFiles

        watchTimer.timeout.disconnect(eventLoop.quit)  #
        # QObject.disconnect(self, SIGNAL("allRepliesFinished()"), eventLoop.quit)
        self.allRepliesFinished.disconnect(eventLoop.quit)

        self.logT("TileLayer.fetchFiles() ends")
        return files
예제 #7
0
    def __init__(self, worker_class, process_name, *args):
        self.exception = None
        self.success = None
        self.return_val = None

        self.worker = worker_class(*args)

        pause = QEventLoop()
        self.worker.finished.connect(pause.quit)
        self.worker.successfully_finished.connect(self.save_success)
        self.worker.error.connect(self.save_exception)
        start_worker(self.worker, iface,
                     QApplication.translate("MISLAND", u'Processing: {}'.format(process_name)))
        pause.exec_()

        if self.exception:
            raise self.exception
예제 #8
0
def _download_qgis(packageUrl, handle):
    from qgis.core import QgsNetworkAccessManager

    request = QNetworkRequest(QUrl(packageUrl))
    reply = QgsNetworkAccessManager.instance().get(request)
    evloop = QEventLoop()
    reply.finished.connect(evloop.quit)
    evloop.exec_(QEventLoop.ExcludeUserInputEvents)
    content_type = reply.rawHeader('Content-Type')
    if bytearray(content_type) == bytearray('text/plain; charset=utf-8'):
        handle.write(bytearray(reply.readAll()))
    else:
        msg = 'Failed to download %s\n\nPlease check your QGIS network settings and authentication db' % (
            packageUrl)
        ret_code = reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)
        if ret_code:
            msg += '\n\nThe HTTP status code was %d.' % (ret_code)
        raise Exception(msg)
예제 #9
0
def get_available_maps(maps_uri):
    """Fetch the list of available and QGIS supported maps from BCS endpoint,
    apparently this API method does not require auth"""
    # For testing purposes, we can also access to a json file directly
    if not maps_uri.startswith('http'):
        j = json.load(open(maps_uri))
    else:
        t = mktemp()
        q = QgsFileDownloader(QUrl(maps_uri), t)
        loop = QEventLoop()
        q.downloadExited.connect(loop.quit)
        loop.exec_()
        if not os.path.isfile(t):
            return []
        with open(t) as f:
            j = json.load(f)
        os.unlink(t)
    return [l for l in j if layer_is_supported(l)]
    def testInvalidAuthFileDownload(self):
        """
        Download a protected map tile without authcfg
        """
        qs = "?" + "&".join([
            "%s=%s" % i
            for i in list({
                "MAP": urllib.parse.quote(self.project_path),
                "SERVICE": "WMS",
                "VERSION": "1.1.1",
                "REQUEST": "GetMap",
                "LAYERS": "testlayer_èé".replace('_', '%20'),
                "STYLES": "",
                "FORMAT": "image/png",
                "BBOX": "-16817707,-4710778,5696513,14587125",
                "HEIGHT": "500",
                "WIDTH": "500",
                "CRS": "EPSG:3857"
            }.items())
        ])
        url = '%s://%s:%s/%s' % (self.protocol, self.hostname, self.port, qs)

        destination = tempfile.mktemp()
        loop = QEventLoop()

        downloader = QgsFileDownloader(QUrl(url), destination, None, False)
        downloader.downloadCompleted.connect(
            partial(self._set_slot, 'completed'))
        downloader.downloadExited.connect(partial(self._set_slot, 'exited'))
        downloader.downloadCanceled.connect(partial(self._set_slot,
                                                    'canceled'))
        downloader.downloadError.connect(partial(self._set_slot, 'error'))
        downloader.downloadProgress.connect(partial(self._set_slot,
                                                    'progress'))

        downloader.downloadExited.connect(loop.quit)

        loop.exec_()

        self.assertTrue(self.error_was_called)
        self.assertTrue(
            "Download failed: Host requires authentication"
            in str(self.error_args),
            "Error args is: %s" % str(self.error_args))
    def download_image(self, url):
        res = False
        img = None
        msg = {'text': '', 'level': Qgis.Warning}
        if url:
            self.logger.info(__name__, "Downloading file from {}".format(url))
            msg_status_bar = "Downloading image from document repository (this might take a while)..."
            with ProcessWithStatus(msg_status_bar):
                if is_connected(TEST_SERVER):

                    nam = QNetworkAccessManager()
                    request = QNetworkRequest(QUrl(url))
                    reply = nam.get(request)

                    loop = QEventLoop()
                    reply.finished.connect(loop.quit)
                    loop.exec_()

                    status = reply.attribute(
                        QNetworkRequest.HttpStatusCodeAttribute)
                    if status == 200:
                        res = True
                        img = reply.readAll()
                    else:
                        res = False
                        msg['text'] = QCoreApplication.translate(
                            "SettingsDialog",
                            "There was a problem connecting to the server. The server might be down or the service cannot be reached at the given URL."
                        )
                else:
                    res = False
                    msg['text'] = QCoreApplication.translate(
                        "SettingsDialog",
                        "There was a problem connecting to Internet.")

        else:
            res = False
            msg['text'] = QCoreApplication.translate("SettingsDialog",
                                                     "Not valid URL")

        if not res:
            self.logger.log_message(__name__, msg['text'], msg['level'])

        return res, img
    def process_put_call(self, url, data=None, report_url=True):
        """
        Run a PUT request and return reply data
        :param url: url for request
        :param data:
        :param report_url: True if URL should be reported to feedback
        :return: response or error message in json format
        """

        if self.connection.read_only:
            return {
                "error": {
                    "msg": "Graphium connection is set to read-only!"
                }
            }

        url_query = QUrl(url)
        if report_url:
            self.report_info('PUT ' + url_query.toString())

        data_byte_array = QJsonDocument.fromVariant(data)

        request = QNetworkRequest(url_query)
        if self.connection.auth_cfg != '':
            self.auth = 0
            config = QgsAuthMethodConfig()
            QgsApplication.authManager().loadAuthenticationConfig(
                self.connection.auth_cfg, config, True)
            concatenated = config.configMap(
            )['username'] + ":" + config.configMap()['password']

            data = base64.encodebytes(concatenated.encode("utf-8")).replace(
                '\n'.encode("utf-8"), ''.encode("utf-8"))
            request.setRawHeader("Authorization".encode("utf-8"),
                                 ("Basic %s" % data).encode("utf-8"))
            request.setRawHeader("Accept".encode("utf-8"),
                                 "*/*".encode("utf-8"))
        loop = QEventLoop()  # https://stackoverflow.com/a/46514984
        reply = self.network_access_manager.put(request,
                                                data_byte_array.toJson())
        reply.finished.connect(loop.quit)
        loop.exec_()

        return self.process_q_reply(reply)
def _sync_get(url):
    global __network_manager
    if __network_manager is None:
        __network_manager = QNetworkAccessManager()
        __network_manager.setProxy(QgsNetworkAccessManager.instance().proxy())
    pause = QEventLoop()
    req = QNetworkRequest(url)
    req.setRawHeader(b"Accept", b"application/xml")
    req.setRawHeader(b"Accept-Language", bytes(settings.value("default_language", "fr"), "utf8"))
    req.setRawHeader(b"User-Agent", bytes(settings.value('http_user_agent', plugin_name()), "utf8"))
    reply = __network_manager.get(req)
    reply.finished.connect(pause.quit)
    is_ok = [True]
    def onError(self):
        is_ok[0] = False
        pause.quit()
    reply.error.connect(onError)
    pause.exec_()
    return reply, is_ok[0]
예제 #14
0
    def test_api_usage_async(self):
        """Test standard async API usage"""
        api = NzElectoralApi('http://localhost:%s' % self.port)
        nam = api.status()
        self.last_result = ''
        expected = {
            "version": self.API_VERSION,
            "gmsVersion": "LINZ_Output_20180108_2018_V1_00"
        }
        el = QEventLoop()

        def f(nam):
            """Wrapper"""
            self.last_result = api.parse_async(nam)['content']

        nam.reply.finished.connect(partial(f, nam))
        nam.reply.finished.connect(el.quit)
        el.exec_(QEventLoop.ExcludeUserInputEvents)
        self.assertEqual(self.last_result, expected)
def _sync_get(url):
    global __network_manager
    if __network_manager is None:
        __network_manager = QNetworkAccessManager()
        __network_manager.setProxy(QgsNetworkAccessManager.instance().proxy())
    pause = QEventLoop()
    req = QNetworkRequest(url)
    req.setRawHeader(b"Accept", b"application/xml")
    req.setRawHeader(b"Accept-Language", b"fr")
    reply = __network_manager.get(req)
    reply.finished.connect(pause.quit)
    is_ok = [True]

    def onError(self):
        is_ok[0] = False
        pause.quit()

    reply.error.connect(onError)
    pause.exec_()
    return reply, is_ok[0]
예제 #16
0
    def run(self):
        """Run the query.

        @raise OverpassBadRequestException,NetWorkErrorException,
        OverpassTimeoutException

        @return: The result of the query.
        @rtype: str
        """
        loop = QEventLoop()
        downloader = QgsFileDownloader(self._url,
                                       self.result_path,
                                       delayStart=True)
        downloader.downloadExited.connect(loop.quit)
        downloader.downloadError.connect(self.error)
        downloader.downloadCanceled.connect(self.canceled)
        downloader.downloadCompleted.connect(self.completed)
        downloader.startDownload()
        loop.exec_()

        osm_file = QFileInfo(self.result_path)
        if not osm_file.exists() and not osm_file.isFile():
            raise OverpassTimeoutException

        # The download is done, checking for not complete OSM file.
        # Overpass might aborted the request with HTTP 200.
        file_obj = codecs.open(self.result_path, 'r', 'utf-8')
        file_obj.seek(0, 2)
        fsize = file_obj.tell()
        file_obj.seek(max(fsize - 1024, 0), 0)
        lines = file_obj.readlines()
        file_obj.close()
        lines = lines[-10:]  # Get last 10 lines
        timeout = (
            '<remark> runtime error: Query timed out in "[a-z]+" at line '
            '[\d]+ after ([\d]+) seconds. </remark>')
        if re.search(timeout, ''.join(lines)):
            raise OverpassTimeoutException

        # Everything went fine
        return self.result_path
예제 #17
0
def get_available_providers(providers_uri):
    """Fetch the list of available providers from BCS endpoint,
    apparently this API method does not require auth"""
    # For testing purposes, we can also access to a json file directly
    if not providers_uri.startswith('http'):
        try:
            j = json.load(open(providers_uri, encoding='utf-8'))
        except:
            j = json.load(open(providers_uri))
    else:
        t = mktemp()
        q = QgsFileDownloader(QUrl(providers_uri), t)
        loop = QEventLoop()
        q.downloadExited.connect(loop.quit)
        loop.exec_()
        if not os.path.isfile(t):
            return []
        with open(t) as f:
            j = json.load(f)
        os.unlink(t)
    return j
class OpenlayersRenderer(QgsMapLayerRenderer):
    def __init__(self, layer, context, webPage, layerType):
        """ Initialize the object. This function is still run in the GUI thread.
            Should refrain from doing any heavy work.
        """
        QgsMapLayerRenderer.__init__(self, layer.id())
        self.context = context
        self.controller = OpenlayersController(None, context, webPage,
                                               layerType)
        self.loop = None

    def render(self):
        """ do the rendering. This function is called in the worker thread """

        debug("[WORKER THREAD] Calling request() asynchronously", 3)
        QMetaObject.invokeMethod(self.controller, "request")

        # setup a timer that checks whether the rendering has not been stopped
        # in the meanwhile
        timer = QTimer()
        timer.setInterval(50)
        timer.timeout.connect(self.onTimeout)
        timer.start()

        debug("[WORKER THREAD] Waiting for the async request to complete", 3)
        self.loop = QEventLoop()
        self.controller.finished.connect(self.loop.exit)
        self.loop.exec_()

        debug("[WORKER THREAD] Async request finished", 3)

        painter = self.context.painter()
        painter.drawImage(0, 0, self.controller.img)
        return True

    def onTimeout(self):
        """ periodically check whether the rendering should not be stopped """
        if self.context.renderingStopped():
            debug("[WORKER THREAD] Cancelling rendering", 3)
            self.loop.exit()
    def process_delete_call(self, url, report_url=True):
        """
        Run a DELETE request and return reply data
        :param url: url for request
        :param report_url: True if URL should be reported to feedback
        :return: response or error message in json format
        """

        if self.connection.read_only:
            return {
                "error": {
                    "msg": "Graphium connection is set to read-only!"
                }
            }

        url_query = QUrl(url)
        if report_url:
            self.report_info('DELETE ' + url_query.toString())

        request = QNetworkRequest(url_query)
        if self.connection.auth_cfg != '':
            self.auth = 0
            config = QgsAuthMethodConfig()
            QgsApplication.authManager().loadAuthenticationConfig(
                self.connection.auth_cfg, config, True)
            concatenated = config.configMap(
            )['username'] + ":" + config.configMap()['password']

            data = base64.encodebytes(concatenated.encode("utf-8")).replace(
                '\n'.encode("utf-8"), ''.encode("utf-8"))
            request.setRawHeader("Authorization".encode("utf-8"),
                                 ("Basic %s" % data).encode("utf-8"))
            request.setRawHeader("Accept".encode("utf-8"),
                                 "*/*".encode("utf-8"))
        loop = QEventLoop()
        reply = self.network_access_manager.deleteResource(request)
        reply.finished.connect(loop.quit)
        loop.exec_()

        return self.process_q_reply(reply)
class OpenlayersRenderer(QgsMapLayerRenderer):
    def __init__(self, layer, context, webPage, layerType):
        """ Initialize the object. This function is still run in the GUI thread.
            Should refrain from doing any heavy work.
        """
        QgsMapLayerRenderer.__init__(self, layer.id())
        self.context = context
        self.controller = OpenlayersController(None,
                                               context, webPage, layerType)
        self.loop = None

    def render(self):
        """ do the rendering. This function is called in the worker thread """

        debug("[WORKER THREAD] Calling request() asynchronously", 3)
        QMetaObject.invokeMethod(self.controller, "request")

        # setup a timer that checks whether the rendering has not been stopped
        # in the meanwhile
        timer = QTimer()
        timer.setInterval(50)
        timer.timeout.connect(self.onTimeout)
        timer.start()

        debug("[WORKER THREAD] Waiting for the async request to complete", 3)
        self.loop = QEventLoop()
        self.controller.finished.connect(self.loop.exit)
        self.loop.exec_()

        debug("[WORKER THREAD] Async request finished", 3)

        painter = self.context.painter()
        painter.drawImage(0, 0, self.controller.img)
        return True

    def onTimeout(self):
        """ periodically check whether the rendering should not be stopped """
        if self.context.renderingStopped():
            debug("[WORKER THREAD] Cancelling rendering", 3)
            self.loop.exit()
예제 #21
0
    def _make_download(self, url, destination, cancel=False):
        self.completed_was_called = False
        self.error_was_called = False
        self.canceled_was_called = False
        self.progress_was_called = False
        self.exited_was_called = False

        loop = QEventLoop()

        downloader = QgsFileDownloader(QUrl(url), destination)
        downloader.downloadCompleted.connect(partial(self._set_slot, 'completed'))
        downloader.downloadExited.connect(partial(self._set_slot, 'exited'))
        downloader.downloadCanceled.connect(partial(self._set_slot, 'canceled'))
        downloader.downloadError.connect(partial(self._set_slot, 'error'))
        downloader.downloadProgress.connect(partial(self._set_slot, 'progress'))

        downloader.downloadExited.connect(loop.quit)

        if cancel:
            downloader.downloadProgress.connect(downloader.cancelDownload)

        loop.exec_()
예제 #22
0
    def _make_download(self, url, destination, cancel=False):
        self.completed_was_called = False
        self.error_was_called = False
        self.canceled_was_called = False
        self.progress_was_called = False
        self.exited_was_called = False

        loop = QEventLoop()

        downloader = QgsFileDownloader(QUrl(url), destination)
        downloader.downloadCompleted.connect(partial(self._set_slot, 'completed'))
        downloader.downloadExited.connect(partial(self._set_slot, 'exited'))
        downloader.downloadCanceled.connect(partial(self._set_slot, 'canceled'))
        downloader.downloadError.connect(partial(self._set_slot, 'error'))
        downloader.downloadProgress.connect(partial(self._set_slot, 'progress'))

        downloader.downloadExited.connect(loop.quit)

        if cancel:
            downloader.downloadProgress.connect(downloader.cancelDownload)

        loop.exec_()
예제 #23
0
    def run(self):
        """Run the query.

        @raise OverpassBadRequestException,NetWorkErrorException,
        OverpassTimeoutException

        @return: The result of the query.
        @rtype: str
        """
        loop = QEventLoop()
        downloader = QgsFileDownloader(self._url,
                                       self.result_path,
                                       delayStart=True)
        downloader.downloadExited.connect(loop.quit)
        downloader.downloadError.connect(self.error)
        downloader.downloadCanceled.connect(self.canceled)
        downloader.downloadCompleted.connect(self.completed)
        downloader.startDownload()
        loop.exec_()

        for message in self.errors:
            self.is_query_timed_out(message)
            self.is_bad_request(message)
            LOGGER.error(message)

        if len(self.errors):
            raise NetWorkErrorException('Overpass API', ', '.join(self.errors))

        osm_file = QFileInfo(self.result_path)
        if not osm_file.exists() and not osm_file.isFile():
            # Do not raise a QuickOSM exception here
            # It must be a bug from QuickOSM
            raise FileNotFoundError

        self.check_file(self.result_path)

        # Everything went fine
        return self.result_path
예제 #24
0
    def testValidAuthFileDownload(self):
        """
        Download a map tile with valid authcfg
        """
        qs = "?" + "&".join(["%s=%s" % i for i in list({
            "MAP": urllib.parse.quote(self.project_path),
            "SERVICE": "WMS",
            "VERSION": "1.1.1",
            "REQUEST": "GetMap",
            "LAYERS": "testlayer_èé".replace('_', '%20'),
            "STYLES": "",
            "FORMAT": "image/png",
            "BBOX": "-16817707,-4710778,5696513,14587125",
            "HEIGHT": "500",
            "WIDTH": "500",
            "CRS": "EPSG:3857"
        }.items())])
        url = '%s://%s:%s/%s' % (self.protocol, self.hostname, self.port, qs)

        destination = tempfile.mktemp()
        loop = QEventLoop()

        downloader = QgsFileDownloader(QUrl(url), destination, self.auth_config.id(), False)
        downloader.downloadCompleted.connect(partial(self._set_slot, 'completed'))
        downloader.downloadExited.connect(partial(self._set_slot, 'exited'))
        downloader.downloadCanceled.connect(partial(self._set_slot, 'canceled'))
        downloader.downloadError.connect(partial(self._set_slot, 'error'))
        downloader.downloadProgress.connect(partial(self._set_slot, 'progress'))

        downloader.downloadExited.connect(loop.quit)

        loop.exec_()

        # Check the we've got a likely PNG image
        self.assertTrue(self.completed_was_called)
        self.assertTrue(os.path.getsize(destination) > 700000, "Image size: %s" % os.path.getsize(destination))  # > 1MB
        with open(destination, 'rb') as f:
            self.assertTrue(b'PNG' in f.read())  # is a PNG
예제 #25
0
    def loadModel(self):
        imd = None
        try:
            loader = ModelLoader(self.ui.mDataLineEdit.text())
            models = loader.detect_models()
            model_names = map(lambda m: m.name, models)
            self._log_output("Looking up models: " + ', '.join(model_names))
            ili = loader.gen_lookup_ili()
            qDebug(ili)
            wpsreq = self._create_wps_request(ili)
            url = self.ui.mIlisMetaUrlLineEdit.text()
            req = QNetworkRequest(QUrl(url))
            req.setHeader(QNetworkRequest.ContentTypeHeader, 'application/xml')
            reply = QgsNetworkAccessManager.instance().post(req, wpsreq)

            # Wait for reply or timeout
            loop = QEventLoop()
            reply.finished.connect(loop.quit)
            QTimer.singleShot(15000, reply.abort)
            loop.exec_()

            if reply.isFinished() and reply.error() == QNetworkReply.NoError:
                result = reply.readAll()
                imd = self._parse_wps_response(result)
        except:
            qDebug("Exception during IlisModel download")
        if imd is None:
            self._show_log_window()
            QgsApplication.messageLog().logMessage(
                "Couldn't download Ilismeta model", "Interlis",
                Qgis.MessageLevel(1))
            self.ui.mModelLineEdit.setText("")
        else:
            fh, imdfn = tempfile.mkstemp(suffix='.imd')
            os.close(fh)
            with codecs.open(imdfn, "w", encoding='utf-8') as file:
                file.write(imd)
            self.ui.mModelLineEdit.setText(imdfn)
def _sync_get(url):
    global __network_manager
    if __network_manager is None:
        __network_manager = QNetworkAccessManager()
        __network_manager.setProxy(QgsNetworkAccessManager.instance().proxy())
    pause = QEventLoop()
    req = QNetworkRequest(url)
    req.setRawHeader(b"Accept", b"application/xml")
    req.setRawHeader(b"Accept-Language",
                     bytes(settings.value("default_language", "fr"), "utf8"))
    req.setRawHeader(
        b"User-Agent",
        bytes(settings.value("http_user_agent", plugin_name()), "utf8"))
    reply = __network_manager.get(req)
    reply.finished.connect(pause.quit)
    is_ok = [True]

    def onError(self):
        is_ok[0] = False
        pause.quit()

    reply.error.connect(onError)
    pause.exec_()
    return reply, is_ok[0]
예제 #27
0
    def testPythonCreateChildrenCalledFromCplusplus(self):
        """ test createChildren() method implemented in Python, called from C++ """

        loop = QEventLoop()
        NUM_ITERS = 10  # set more to detect memory leaks
        for i in range(NUM_ITERS):
            tabSetDestroyedFlag = [False]

            item = PyQgsDataConnectionItem(None, "name", "", "my_provider")
            item.tabSetDestroyedFlag = tabSetDestroyedFlag

            # Causes PyQgsDataConnectionItem.createChildren() to be called
            item.populate()

            # wait for populate() to have done its job
            item.stateChanged.connect(loop.quit)
            loop.exec_()

            # Python object PyQgsLayerItem should still be alive
            self.assertFalse(tabSetDestroyedFlag[0])

            children = item.children()
            self.assertEqual(len(children), 2)
            self.assertEqual(children[0].name(), "name")
            self.assertEqual(children[1].name(), "name2")

            del (children)

            # Delete the object and make sure all deferred deletions are processed
            item.destroyed.connect(loop.quit)
            item.deleteLater()
            loop.exec_()

            # Check that the PyQgsLayerItem Python object is now destroyed
            self.assertTrue(tabSetDestroyedFlag[0])
            tabSetDestroyedFlag[0] = False
    def is_source_service_valid(self):
        res = False
        msg = {'text': '', 'level': Qgis.Warning}
        url = self.txt_service_endpoint.text().strip()
        if url:
            with OverrideCursor(Qt.WaitCursor):
                self.qgis_utils.status_bar_message_emitted.emit(
                    "Checking source service availability (this might take a while)...",
                    0)
                QCoreApplication.processEvents()
                if self.qgis_utils.is_connected(TEST_SERVER):

                    nam = QNetworkAccessManager()
                    request = QNetworkRequest(QUrl(url))
                    reply = nam.get(request)

                    loop = QEventLoop()
                    reply.finished.connect(loop.quit)
                    loop.exec_()

                    allData = reply.readAll()
                    response = QTextStream(allData, QIODevice.ReadOnly)
                    status = reply.attribute(
                        QNetworkRequest.HttpStatusCodeAttribute)
                    if status == 200:
                        try:
                            data = json.loads(response.readAll())
                            if 'id' in data and data[
                                    'id'] == SOURCE_SERVICE_EXPECTED_ID:
                                res = True
                                msg['text'] = QCoreApplication.translate(
                                    "SettingsDialog",
                                    "The tested service is valid to upload files!"
                                )
                                msg['level'] = Qgis.Info
                            else:
                                res = False
                                msg['text'] = QCoreApplication.translate(
                                    "SettingsDialog",
                                    "The tested upload service is not compatible: no valid 'id' found in response."
                                )
                        except json.decoder.JSONDecodeError as e:
                            res = False
                            msg['text'] = QCoreApplication.translate(
                                "SettingsDialog",
                                "Response from the tested service is not compatible: not valid JSON found."
                            )
                    else:
                        res = False
                        msg['text'] = QCoreApplication.translate(
                            "SettingsDialog",
                            "There was a problem connecting to the server. The server might be down or the service cannot be reached at the given URL."
                        )
                else:
                    res = False
                    msg['text'] = QCoreApplication.translate(
                        "SettingsDialog",
                        "There was a problem connecting to Internet.")

                self.qgis_utils.clear_status_bar_emitted.emit()
        else:
            res = False
            msg['text'] = QCoreApplication.translate(
                "SettingsDialog", "Not valid service URL to test!")

        return (res, msg)
예제 #29
0
class NetworkAccessManager():
    """
    This class mimicks httplib2 by using QgsNetworkAccessManager for all
    network calls.

    The return value is a tuple of (response, content), the first being and
    instance of the Response class, the second being a string that contains
    the response entity body.

    Parameters
    ----------
    debug : bool
        verbose logging if True
    exception_class : Exception
        Custom exception class

    Usage
    -----
    ::
        nam = NetworkAccessManager(authcgf)
        try:
            (response, content) = nam.request('http://www.example.com')
        except RequestsException, e:
            # Handle exception
            pass


    """
    def __init__(self,
                 authid=None,
                 disable_ssl_certificate_validation=False,
                 exception_class=None,
                 debug=True):
        self.disable_ssl_certificate_validation = disable_ssl_certificate_validation
        self.authid = authid
        self.reply = None
        self.debug = debug
        self.exception_class = exception_class
        self.cookie = None
        self.basicauth = None

    def setBasicauth(self, encodedString):
        self.basicauth = encodedString

    def setCookie(self, cookie):
        self.cookie = cookie

    def msg_log(self, msg):
        if self.debug:
            QgsMessageLog.logMessage(msg, "NetworkAccessManager")

    def request(self,
                url,
                method="GET",
                body=None,
                headers=None,
                redirections=DEFAULT_MAX_REDIRECTS,
                connection_type=None):
        """
        Make a network request by calling QgsNetworkAccessManager.
        redirections argument is ignored and is here only for httplib2 compatibility.
        """
        self.msg_log(u'http_call request: {0}'.format(url))
        self.http_call_result = Response({
            'status': 0,
            'status_code': 0,
            'status_message': '',
            'text': '',
            'ok': False,
            'headers': {},
            'reason': '',
            'exception': None,
        })
        req = QNetworkRequest()
        # Avoid double quoting form QUrl
        if PYTHON_VERSION >= 3:
            url = urllib.parse.unquote(url)
        else:
            url = urllib2.unquote(url)
        req.setUrl(QUrl(url))

        if self.cookie is not None:
            if headers is not None:
                headers['Cookie'] = self.cookie
            else:
                headers = {'Cookie': self.cookie}

        if self.basicauth is not None:
            if headers is not None:
                headers['Authorization'] = self.basicauth
            else:
                headers = {'Authorization': self.basicauth}

        if headers is not None:
            # This fixes a wierd error with compressed content not being correctly
            # inflated.
            # If you set the header on the QNetworkRequest you are basically telling
            # QNetworkAccessManager "I know what I'm doing, please don't do any content
            # encoding processing".
            # See: https://bugs.webkit.org/show_bug.cgi?id=63696#c1
            try:
                del headers['Accept-Encoding']
            except KeyError:
                pass
            for k, v in headers.items():
                if PYTHON_VERSION >= 3:
                    if isinstance(k, str):
                        k = k.encode('utf-8')
                    if isinstance(v, str):
                        v = v.encode('utf-8')
                req.setRawHeader(k, v)

        if self.authid:
            self.msg_log("Update request w/ authid: {0}".format(self.authid))
            QgsAuthManager.instance().updateNetworkRequest(req, self.authid)
        if self.reply is not None and self.reply.isRunning():
            self.reply.close()
        if method.lower() == 'delete':
            func = getattr(QgsNetworkAccessManager.instance(),
                           'deleteResource')
        else:
            func = getattr(QgsNetworkAccessManager.instance(), method.lower())
        # Calling the server ...
        # Let's log the whole call for debugging purposes:
        self.msg_log("Sending %s request to %s" %
                     (method.upper(), req.url().toString()))
        headers = {str(h): str(req.rawHeader(h)) for h in req.rawHeaderList()}
        for k, v in headers.items():
            self.msg_log("%s: %s" % (k, v))
        if method.lower() in ['post', 'put']:
            if PYTHON_VERSION >= 3:
                if isinstance(body, str):
                    body = body.encode('utf-8')
            self.reply = func(req, body)
        else:
            self.reply = func(req)
        if self.authid:
            self.msg_log("Update reply w/ authid: {0}".format(self.authid))
            QgsAuthManager.instance().updateNetworkReply(
                self.reply, self.authid)

        self.reply.sslErrors.connect(self.sslErrors)
        self.reply.finished.connect(self.replyFinished)

        # Call and block
        self.el = QEventLoop()
        self.reply.finished.connect(self.el.quit)
        self.reply.downloadProgress.connect(self.downloadProgress)

        # Catch all exceptions (and clean up requests)
        try:
            self.el.exec_()
            # Let's log the whole response for debugging purposes:
            self.msg_log("Got response %s %s from %s" % \
                        (self.http_call_result.status_code,
                         self.http_call_result.status_message,
                         self.reply.url().toString()))
            headers = {
                str(h): str(self.reply.rawHeader(h))
                for h in self.reply.rawHeaderList()
            }
            for k, v in headers.items():
                self.msg_log("%s: %s" % (k, v))
            if len(self.http_call_result.text) < 1024:
                self.msg_log("Payload :\n%s" % self.http_call_result.text)
            else:
                self.msg_log("Payload is > 1 KB ...")
        except Exception as e:
            raise e
        finally:
            if self.reply is not None:
                if self.reply.isRunning():
                    self.reply.close()
                self.msg_log("Deleting reply ...")
                self.reply.deleteLater()
                self.reply = None
            else:
                self.msg_log("Reply was already deleted ...")
        if not self.http_call_result.ok:
            if self.http_call_result.exception and not self.exception_class:
                raise self.http_call_result.exception
            else:
                raise self.exception_class(self.http_call_result.reason)
        return (self.http_call_result, self.http_call_result.text)

    #@pyqtSlot()
    def downloadProgress(self, bytesReceived, bytesTotal):
        """Keep track of the download progress"""
        #self.msg_log("downloadProgress %s of %s ..." % (bytesReceived, bytesTotal))
        pass

    #@pyqtSlot()
    def replyFinished(self):
        err = self.reply.error()
        httpStatus = self.reply.attribute(
            QNetworkRequest.HttpStatusCodeAttribute)
        httpStatusMessage = self.reply.attribute(
            QNetworkRequest.HttpReasonPhraseAttribute)
        self.http_call_result.status_code = httpStatus
        self.http_call_result.status = httpStatus
        self.http_call_result.status_message = httpStatusMessage
        for k, v in self.reply.rawHeaderPairs():
            self.http_call_result.headers[str(k)] = str(v)
            self.http_call_result.headers[str(k).lower()] = str(v)
        if err != QNetworkReply.NoError:
            msg = "Network error #{0}: {1}".format(self.reply.error(),
                                                   self.reply.errorString())
            self.http_call_result.reason = msg
            self.http_call_result.ok = False
            self.msg_log(msg)
            if err == QNetworkReply.TimeoutError:
                self.http_call_result.exception = RequestsExceptionTimeout(msg)
            elif err == QNetworkReply.ConnectionRefusedError:
                self.http_call_result.exception = RequestsExceptionConnectionError(
                    msg)
            else:
                self.http_call_result.exception = RequestsException(msg)
        else:
            # since Python 3 readAll() returns a PyQt5.QByteArray, we
            # want only the data
            if PYTHON_VERSION >= 3:
                self.http_call_result.text = self.reply.readAll().data(
                ).decode('utf-8')
            else:
                self.http_call_result.text = str(self.reply.readAll())
            self.http_call_result.ok = True
        self.reply.deleteLater()

    #@pyqtSlot()
    def sslErrors(self, reply, ssl_errors):
        """
        Handle SSL errors, logging them if debug is on and ignoring them
        if disable_ssl_certificate_validation is set.
        """
        if ssl_errors:
            for v in ssl_errors:
                self.msg_log("SSL Error: %s" % v)
        if self.disable_ssl_certificate_validation:
            reply.ignoreSslErrors()
예제 #30
0
def getVideoLocationInfo(videoPath, dataFile=False):
    """ Get basic location info about the video """
    location = []

    try:
        if dataFile == False:
            p = _spawn([
                '-i', videoPath, '-ss', '00:00:00', '-to', '00:00:01', '-map',
                'data-re', '-f', 'data', '-'
            ])

            stdout_data, _ = p.communicate()

        ################
        else:
            global listOfMetadata
            stdout_data = listOfMetadata[0]
        ################

        if stdout_data == b'':
            return
        for packet in StreamParser(stdout_data):
            if isinstance(packet, UnknownElement):
                qgsu.showUserAndLogMessage(
                    "Error interpreting klv data, metadata cannot be read.",
                    "the parser did not recognize KLV data",
                    level=QGis.Warning)
                continue
            packet.MetadataList()
            frameCenterLat = packet.FrameCenterLatitude
            frameCenterLon = packet.FrameCenterLongitude
            loc = "-"

            if Reverse_geocoding_url != "":
                try:
                    url = QUrl(
                        Reverse_geocoding_url.format(str(frameCenterLat),
                                                     str(frameCenterLon)))
                    request = QNetworkRequest(url)
                    reply = QgsNetworkAccessManager.instance().get(request)
                    loop = QEventLoop()
                    reply.finished.connect(loop.quit)
                    loop.exec_()
                    reply.finished.disconnect(loop.quit)
                    loop = None
                    result = reply.readAll()
                    data = json.loads(result.data())

                    if "village" in data["address"] and "state" in data[
                            "address"]:
                        loc = data["address"]["village"] + \
                            ", " + data["address"]["state"]
                    elif "town" in data["address"] and "state" in data[
                            "address"]:
                        loc = data["address"]["town"] + \
                            ", " + data["address"]["state"]
                    else:
                        loc = data["display_name"]

                except Exception:
                    qgsu.showUserAndLogMessage(
                        "",
                        "getVideoLocationInfo: failed to get address from reverse geocoding service.",
                        onlyLog=True)

            location = [frameCenterLat, frameCenterLon, loc]

            qgsu.showUserAndLogMessage(
                "",
                "Got Location: lon: " + str(frameCenterLon) + " lat: " +
                str(frameCenterLat) + " location: " + str(loc),
                onlyLog=True)

            break
        else:

            qgsu.showUserAndLogMessage(
                QCoreApplication.translate(
                    "QgsFmvUtils", "This video doesn't have Metadata ! : "))

    except Exception as e:
        qgsu.showUserAndLogMessage(
            QCoreApplication.translate("QgsFmvUtils",
                                       "Video info callback failed! : "),
            str(e))

    return location
예제 #31
0
파일: nominatim.py 프로젝트: 3liz/QuickOSM
class Nominatim(object):
    """Manage connexion to Nominatim."""

    def __init__(self,
                 url="https://nominatim.openstreetmap.org/search?format=json"):
        """
        Constructor
        @param url:URL of Nominatim
        @type url:str
        """

        self.__url = url
        self.network = QgsNetworkAccessManager.instance()
        self.data = None
        self.network_reply = None
        self.loop = None

    def query(self, query):
        """
        Perform a nominatim query

        @param query: Query to execute
        @type query: str

        @raise NetWorkErrorException

        @return: the result of the query
        @rtype: str
        """

        url_query = QUrl(self.__url)

        # query = QUrl.toPercentEncoding(query)
        query_string = QUrlQuery()
        query_string.addQueryItem('q', query)
        query_string.addQueryItem('format', 'json')
        query_string.addQueryItem('info', 'QgisQuickOSMPlugin')
        url_query.setQuery(query_string)

        request = QNetworkRequest(url_query)
        # request.setRawHeader("User-Agent", "QuickOSM")
        self.network_reply = self.network.get(request)
        self.loop = QEventLoop()
        self.network.finished.connect(self._end_of_request)
        self.loop.exec_()

        if self.network_reply.error() == QNetworkReply.NoError:
            return json.loads(self.data)
        else:
            raise NetWorkErrorException(suffix="Nominatim API")

    def _end_of_request(self):
        self.data = self.network_reply.readAll().data().decode('utf-8')
        self.loop.quit()

    def get_first_polygon_from_query(self, query):
        """
        Get first OSM_ID of a Nominatim area

        @param query: Query to execute
        @type query: str

        @raise NominatimAreaException:

        @return: First relation's osm_id
        @rtype: str
        """
        data = self.query(query)
        for result in data:
            if result['osm_type'] == "relation":
                return result['osm_id']

        # If no result has been return
        raise NominatimAreaException

    def get_first_point_from_query(self, query):
        """
        Get first longitude, latitude of a Nominatim point

        @param query: Query to execute
        @type query: str

        @raise NominatimAreaException:

        @return: First relation's osm_id
        @rtype: str
        """
        data = self.query(query)
        for result in data:
            if result['osm_type'] == "node":
                return result['lon'], result['lat']

        # If no result has been return
        raise NominatimAreaException
예제 #32
0
    from XYZHubConnector.xyz_qgis.network import net_handler
    from qgis.PyQt.QtCore import QEventLoop
    from XYZHubConnector.xyz_qgis.models.connection import SpaceConnectionInfo
    conn_info = SpaceConnectionInfo()
    conn_info.set_(space_id="DicZ8XTR", token="AdOZrFlyIrXLzbAJeN5Lzts")

    # minimize total number of features
    # by generate tags for all levels
    # smallest step for coord currently is 1 (can be smaller)

    lst_tags = [format_tags(t, prefix="point") for t in precompute_tags()]
    # print(lst_tags)
    print("len tags", len(lst_tags))
    tags_lst_obj = make_point_json(lst_tags)
    print("len set tags", len(set(lst_tags)))
    print("len tags_lst_obj", len(tags_lst_obj))

    loop = QEventLoop()
    network = NetManager(app)

    total = sum(len(lst) for lst in tags_lst_obj.values())
    print("total obj", total)
    network.network.finished.connect(count_reply(total, loop.quit))

    for i, (tags, lst_obj) in enumerate(tags_lst_obj.items()):
        # print(len(lst_obj[0]["features"]), tags)
        for obj in lst_obj:
            pass
            reply = network.add_features(conn_info, obj, tags=tags)
    loop.exec_()
class Downloader(QObject):

    NOT_FOUND = 0
    NO_ERROR = 0
    TIMEOUT_ERROR = 4
    UNKNOWN_ERROR = -1

    replyFinished = pyqtSignal(str, int, int)

    def __init__(self, parent=None):
        QObject.__init__(self, parent)
        self.queue = []
        self.redirected_urls = {}
        self.requestingUrls = []
        self.replies = []

        self.eventLoop = QEventLoop()
        self.sync = False
        self.fetchedFiles = {}
        self.clearCounts()

        self.timer = QTimer()
        self.timer.setSingleShot(True)
        self.timer.timeout.connect(self.fetchTimedOut)

        # network settings
        self.userAgent = "QuickMapServices tile layer (+https://github.com/nextgis/quickmapservices)"
        self.max_connection = 4
        self.default_cache_expiration = 24
        self.errorStatus = Downloader.NO_ERROR

    def clearCounts(self):
        self.fetchSuccesses = 0
        self.fetchErrors = 0
        self.cacheHits = 0

    def fetchTimedOut(self):
        self.log("Downloader.timeOut()")
        self.abort()
        self.errorStatus = Downloader.TIMEOUT_ERROR

    def abort(self):
        # clear queue and abort sent requests
        self.queue = []
        self.timer.stop()
        for reply in self.replies:
            reply.abort()
        self.errorStatus = Downloader.UNKNOWN_ERROR

    def replyFinishedSlot(self):
        reply = self.sender()
        url = reply.request().url().toString()
        self.log("replyFinishedSlot: %s" % url)
        if not url in self.fetchedFiles:
            self.fetchedFiles[url] = None
        self.requestingUrls.remove(url)
        self.replies.remove(reply)
        isFromCache = 0
        httpStatusCode = reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)
        if reply.error() == QNetworkReply.NoError:
            if httpStatusCode == 301:
                new_url = str(reply.rawHeader("Location"))
                self.addToQueue(new_url, url)
            else:
                self.fetchSuccesses += 1
                if reply.attribute(QNetworkRequest.SourceIsFromCacheAttribute):
                    self.cacheHits += 1
                    isFromCache = 1
                elif not reply.hasRawHeader("Cache-Control"):
                    cache = QgsNetworkAccessManager.instance().cache()
                    if cache:
                        metadata = cache.metaData(reply.request().url())
                        # self.log("Expiration date: " + metadata.expirationDate().toString().encode("utf-8"))
                        if metadata.expirationDate().isNull():
                            metadata.setExpirationDate(
                                QDateTime.currentDateTime().addSecs(self.default_cache_expiration * 60 * 60))
                            cache.updateMetaData(metadata)
                            self.log(
                                "Default expiration date has been set: %s (%d h)" % (url, self.default_cache_expiration))

                if reply.isReadable():
                    data = reply.readAll()
                    if self.redirected_urls.has_key(url):
                        url = self.redirected_urls[url]

                    self.fetchedFiles[url] = data
                else:
                    qDebug("http status code: " + str(httpStatusCode))

                # self.emit(SIGNAL('replyFinished(QString, int, int)'), url, reply.error(), isFromCache)
                self.replyFinished.emit(url, reply.error(), isFromCache)
        else:
            if self.sync and httpStatusCode == 404:
                self.fetchedFiles[url] = self.NOT_FOUND
            self.fetchErrors += 1
            if self.errorStatus == self.NO_ERROR:
                self.errorStatus = self.UNKNOWN_ERROR

        reply.deleteLater()

        if debug_mode:
            qDebug("queue: %d, requesting: %d" % (len(self.queue), len(self.requestingUrls)))

        if len(self.queue) + len(self.requestingUrls) == 0:
            # all replies have been received
            if self.sync:
                self.logT("eventLoop.quit()")
                self.eventLoop.quit()
            else:
                self.timer.stop()
        elif len(self.queue) > 0:
            # start fetching the next file
            self.fetchNext()
        self.log("replyFinishedSlot End: %s" % url)

    def fetchNext(self):
        if len(self.queue) == 0:
            return
        url = self.queue.pop(0)
        self.log("fetchNext: %s" % url)

        request = QNetworkRequest(QUrl(url))
        request.setRawHeader("User-Agent", self.userAgent)
        reply = QgsNetworkAccessManager.instance().get(request)
        reply.finished.connect(self.replyFinishedSlot)
        self.requestingUrls.append(url)
        self.replies.append(reply)
        return reply

    def fetchFiles(self, urlList, timeout_ms=0):
        self.log("fetchFiles()")
        self.sync = True
        self.queue = []
        self.redirected_urls = {} 
        self.clearCounts()
        self.errorStatus = Downloader.NO_ERROR
        self.fetchedFiles = {}

        if len(urlList) == 0:
            return self.fetchedFiles

        for url in urlList:
            self.addToQueue(url)

        for i in range(self.max_connection):
            self.fetchNext()

        if timeout_ms > 0:
            self.timer.setInterval(timeout_ms)
            self.timer.start()

        self.logT("eventLoop.exec_(): " + str(self.eventLoop))
        self.eventLoop.exec_()
        self.log("fetchFiles() End: %d" % self.errorStatus)
        if timeout_ms > 0:
            self.timer.stop()
        return self.fetchedFiles

    def addToQueue(self, url, redirected_from=None):
        if url in self.queue:
            return False
        self.queue.append(url)
        if redirected_from is not None:
            self.redirected_urls[url] = redirected_from
        return True

    def queueCount(self):
        return len(self.queue)

    def finishedCount(self):
        return len(self.fetchedFiles)

    def unfinishedCount(self):
        return len(self.queue) + len(self.requestingUrls)

    def log(self, msg):
        if debug_mode:
            qDebug(msg)

    def logT(self, msg):
        if debug_mode:
            qDebug("%s: %s" % (str(threading.current_thread()), msg))

    def fetchFilesAsync(self, urlList, timeout_ms=0):
        self.log("fetchFilesAsync()")
        self.sync = False
        self.queue = []
        self.clearCounts()
        self.errorStatus = Downloader.NO_ERROR
        self.fetchedFiles = {}

        if len(urlList) == 0:
            return self.fetchedFiles

        for url in urlList:
            self.addToQueue(url)

        for i in range(self.max_connection):
            self.fetchNext()

        if timeout_ms > 0:
            self.timer.setInterval(timeout_ms)
            self.timer.start()
예제 #34
0
class BaseTestAsync(unittest.TestCase):
    @classmethod
    def setUpClass(cls):
        cls.app = start_app()

    @classmethod
    def tearDownClass(cls):
        pass
        # cls.app.quit() # useless
        # stop_app() # NameError: name 'QGISAPP' is not defined
        # cls.app.exitQgis() # crash when run unittest (all module)
        # del cls.app
    def setUp(self):
        if isinstance(super(), BaseTestAsync) and hasattr(
                super(), self._testMethodName):
            self.skipTest("duplicated test")

        # self.loop = self.app
        self.loop = QEventLoop()
        self._output = list()
        self._idx = 0
        self._lst_error = list()
        self.startTime = time.time()

        self._log_debug("Test start. ###################")

    def tearDown(self):
        self._stop_async()  # useless ?
        self._log_debug("Test ended. ################### \n")
        self._log_info("%s: %.3fs" %
                       (self._id(), time.time() - self.startTime))

    def _add_output(self, output):
        self._output.append(output)

    def output(self, idx=None):
        if idx is None:
            idx = self._idx
            self._idx = min(idx + 1, len(self._output))
        return self._output[idx] if idx < len(self._output) else None

    def _stop_async(self):
        self.loop.quit()
        self._log_debug("Stop Async. ###################")

    def _handle_error(self, e):
        pretty_print_error(e)
        self._stop_async()
        self._lst_error.append(e)
        # raise ErrorDuringTest(e)

    def _process_async(self):
        self.loop.processEvents()

    def _wait_async(self):
        t0 = time.time()
        self.loop.exec_()

        self._log_info("%s: wait_async end: %.3fs" %
                       (self._id(), time.time() - t0))
        if self._lst_error:
            raise AllErrorsDuringTest(self._lst_error)

    def _make_async_fun(self, fun):
        return AsyncFun(fun)

    def _log_error(self, *a, **kw):
        print(*a, file=sys.stderr, **kw)

    def _log_info(self, *a, **kw):
        log_truncate(*a, **kw)

    def _log_debug(self, *a, **kw):
        fn_name = "{}:".format(self._id())
        # fn_name = sys._getframe(1).f_code.co_name
        log_truncate(fn_name, *a, **kw)

    def _id(self):
        return self._subtest.id() if self._subtest else self.id()

    def assertMultiInput(self, expected, lst_input, msg="multi input"):
        for i, actual in enumerate(lst_input):
            self.assertEqual(expected, actual, "{} [{}]".format(msg, i))

    #unused
    def assertPairEqual(self, *a):
        pairs = [a[i:i + 2] for i in range(0, len(a), 2)]
        return self.assertEqual(*zip(*pairs))
예제 #35
0
class NetworkAccessManager(object):
    """
    This class mimicks httplib2 by using QgsNetworkAccessManager for all
    network calls.
    The return value is a tuple of (response, content), the first being and
    instance of the Response class, the second being a string that contains
    the response entity body.
    Parameters
    ----------
    debug : bool
        verbose logging if True
    exception_class : Exception
        Custom exception class
    Usage 1 (blocking mode)
    -----
    ::
        nam = NetworkAccessManager(authcgf)
        try:
            (response, content) = nam.request('http://www.example.com')
        except RequestsException as e:
            # Handle exception
            pass
    Usage 2 (Non blocking mode)
    -------------------------
    ::
        NOTE! if blocking mode returns immediatly
              it's up to the caller to manage listeners in case
              of non blocking mode
        nam = NetworkAccessManager(authcgf)
        try:
            nam.request('http://www.example.com', blocking=False)
            nam.reply.finished.connect(a_signal_listener)
        except RequestsException as e:
            # Handle exception
            pass
        Get response using method:
        nam.httpResult() that return a dictionary with keys:
            'status' - http code result come from reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)
            'status_code' - http code result come from reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)
            'status_message' - reply message string from reply.attribute(QNetworkRequest.HttpReasonPhraseAttribute)
            'content' - bytearray returned from reply
            'ok' - request success [True, False]
            'headers' - Dicionary containing the reply header
            'reason' - fomatted message string with reply.errorString()
            'exception' - the exception returne dduring execution
    """

    def __init__(self, authid=None, disable_ssl_certificate_validation=False, exception_class=None, debug=False):
        self.disable_ssl_certificate_validation = disable_ssl_certificate_validation
        self.authid = authid
        self.reply = None
        self.debug = debug
        self.exception_class = exception_class
        self.on_abort = False
        self.blocking_mode = False
        self.http_call_result = Response({
            'status': 0,
            'status_code': 0,
            'status_message': '',
            'content' : '',
            'ok': False,
            'headers': {},
            'reason': '',
            'exception': None,
        })

    def msg_log(self, msg):
        if self.debug:
            QgsMessageLog.logMessage(msg, "NetworkAccessManager")

    def httpResult(self):
        return self.http_call_result

    def request(self, url, method="GET", body=None, headers=None, redirections=DEFAULT_MAX_REDIRECTS, connection_type=None, blocking=True):
        """
        Make a network request by calling QgsNetworkAccessManager.
        redirections argument is ignored and is here only for httplib2 compatibility.
        """
        self.msg_log(u'http_call request: {0}'.format(url))

        self.blocking_mode = blocking
        req = QNetworkRequest()
        # Avoid double quoting form QUrl
        url = urllib.parse.unquote(url)
        req.setUrl(QUrl(url))
        if headers is not None:
            # This fixes a wierd error with compressed content not being correctly
            # inflated.
            # If you set the header on the QNetworkRequest you are basically telling
            # QNetworkAccessManager "I know what I'm doing, please don't do any content
            # encoding processing".
            # See: https://bugs.webkit.org/show_bug.cgi?id=63696#c1
            try:
                del headers['Accept-Encoding']
            except KeyError:
                pass
            for k, v in list(headers.items()):
                self.msg_log("Setting header %s to %s" % (k, v))
                req.setRawHeader(k, v)
        if self.authid:
            self.msg_log("Update request w/ authid: {0}".format(self.authid))
            QgsAuthManager.instance().updateNetworkRequest(req, self.authid)
        if self.reply is not None and self.reply.isRunning():
            self.reply.close()
        if method.lower() == 'delete':
            func = getattr(QgsNetworkAccessManager.instance(), 'deleteResource')
        else:
            func = getattr(QgsNetworkAccessManager.instance(), method.lower())
        # Calling the server ...
        # Let's log the whole call for debugging purposes:
        self.msg_log("Sending %s request to %s" % (method.upper(), req.url().toString()))
        self.on_abort = False
        headers = {str(h): str(req.rawHeader(h)) for h in req.rawHeaderList()}
        for k, v in list(headers.items()):
            self.msg_log("%s: %s" % (k, v))
        if method.lower() in ['post', 'put']:
            if isinstance(body, file):
                body = body.read()
            self.reply = func(req, body)
        else:
            self.reply = func(req)
        if self.authid:
            self.msg_log("Update reply w/ authid: {0}".format(self.authid))
            QgsAuthManager.instance().updateNetworkReply(self.reply, self.authid)

        # necessary to trap local timout manage by QgsNetworkAccessManager
        # calling QgsNetworkAccessManager::abortRequest
        QgsNetworkAccessManager.instance().requestTimedOut.connect(self.requestTimedOut)

        self.reply.sslErrors.connect(self.sslErrors)
        self.reply.finished.connect(self.replyFinished)
        self.reply.downloadProgress.connect(self.downloadProgress)

        # block if blocking mode otherwise return immediatly
        # it's up to the caller to manage listeners in case of no blocking mode
        if not self.blocking_mode:
            return (None, None)

        # Call and block
        self.el = QEventLoop()
        self.reply.finished.connect(self.el.quit)

        # Catch all exceptions (and clean up requests)
        try:
            self.el.exec_(QEventLoop.ExcludeUserInputEvents)
        except Exception as e:
            raise e

        if self.reply:
            self.reply.finished.disconnect(self.el.quit)

        # emit exception in case of error
        if not self.http_call_result.ok:
            if self.http_call_result.exception and not self.exception_class:
                raise self.http_call_result.exception
            else:
                raise self.exception_class(self.http_call_result.reason)

        return (self.http_call_result, self.http_call_result.content)

    #@pyqtSlot()
    def downloadProgress(self, bytesReceived, bytesTotal):
        """Keep track of the download progress"""
        #self.msg_log("downloadProgress %s of %s ..." % (bytesReceived, bytesTotal))
        pass

    #@pyqtSlot(QNetworkReply)
    def requestTimedOut(self, QNetworkReply):
        """Trap the timeout. In Async mode requestTimedOut is called after replyFinished"""
        # adapt http_call_result basing on receiving qgs timer timout signal
        self.exception_class = RequestsExceptionTimeout
        self.http_call_result.exception = RequestsExceptionTimeout("Timeout error")

    #@pyqtSlot(QObject)
    def replyFinished(self):
        err = self.reply.error()
        httpStatus = self.reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)
        httpStatusMessage = self.reply.attribute(QNetworkRequest.HttpReasonPhraseAttribute)
        self.http_call_result.status_code = httpStatus
        self.http_call_result.status = httpStatus
        self.http_call_result.status_message = httpStatusMessage
        for k, v in self.reply.rawHeaderPairs():
            self.http_call_result.headers[str(k)] = str(v)
            self.http_call_result.headers[str(k).lower()] = str(v)

        if err != QNetworkReply.NoError:
            # handle error
            # check if errorString is empty, if so, then set err string as
            # reply dump
            if re.match('(.)*server replied: $', self.reply.errorString()):
                errString = self.reply.errorString() + self.http_call_result.content
            else:
                errString = self.reply.errorString()
            # check if self.http_call_result.status_code is available (client abort
            # does not produce http.status_code)
            if self.http_call_result.status_code:
                msg = "Network error #{0}: {1}".format(
                    self.http_call_result.status_code, errString)
            else:
                msg = "Network error: {0}".format(errString)

            self.http_call_result.reason = msg
            self.http_call_result.ok = False
            self.msg_log(msg)
            # set return exception
            if err == QNetworkReply.TimeoutError:
                self.http_call_result.exception = RequestsExceptionTimeout(msg)

            elif err == QNetworkReply.ConnectionRefusedError:
                self.http_call_result.exception = RequestsExceptionConnectionError(msg)

            elif err == QNetworkReply.OperationCanceledError:
                # request abort by calling NAM.abort() => cancelled by the user
                if self.on_abort:
                    self.http_call_result.exception = RequestsExceptionUserAbort(msg)
                else:
                    self.http_call_result.exception = RequestsException(msg)

            else:
                self.http_call_result.exception = RequestsException(msg)

            # overload exception to the custom exception if available
            if self.exception_class:
                self.http_call_result.exception = self.exception_class(msg)

        else:
            # Handle redirections
            redirectionUrl = self.reply.attribute(QNetworkRequest.RedirectionTargetAttribute)
            if redirectionUrl is not None and redirectionUrl != self.reply.url():
                if redirectionUrl.isRelative():
                    redirectionUrl = self.reply.url().resolved(redirectionUrl)

                msg = "Redirected from '{}' to '{}'".format(
                    self.reply.url().toString(), redirectionUrl.toString())
                self.msg_log(msg)

                self.reply.deleteLater()
                self.reply = None
                self.request(redirectionUrl.toString())

            # really end request
            else:
                msg = "Network success #{0}".format(self.reply.error())
                self.http_call_result.reason = msg
                self.msg_log(msg)

                ba = self.reply.readAll()
                self.http_call_result.content = bytes(ba)
                self.http_call_result.ok = True

        # Let's log the whole response for debugging purposes:
        self.msg_log("Got response %s %s from %s" % \
                    (self.http_call_result.status_code,
                     self.http_call_result.status_message,
                     self.reply.url().toString()))
        for k, v in list(self.http_call_result.headers.items()):
            self.msg_log("%s: %s" % (k, v))
        if len(self.http_call_result.content) < 1024:
            self.msg_log("Payload :\n%s" % self.http_call_result.content)
        else:
            self.msg_log("Payload is > 1 KB ...")

        # clean reply
        if self.reply is not None:
            if self.reply.isRunning():
                self.reply.close()
            self.msg_log("Deleting reply ...")
            # Disconnect all slots
            self.reply.sslErrors.disconnect(self.sslErrors)
            self.reply.finished.disconnect(self.replyFinished)
            self.reply.downloadProgress.disconnect(self.downloadProgress)
            self.reply.deleteLater()
            self.reply = None
        else:
            self.msg_log("Reply was already deleted ...")

    #@pyqtSlot()
    def sslErrors(self, ssl_errors):
        """
        Handle SSL errors, logging them if debug is on and ignoring them
        if disable_ssl_certificate_validation is set.
        """
        if ssl_errors:
            for v in ssl_errors:
                self.msg_log("SSL Error: %s" % v.errorString())
        if self.disable_ssl_certificate_validation:
            self.reply.ignoreSslErrors()

    #@pyqtSlot()
    def abort(self):
        """
        Handle request to cancel HTTP call
        """
        if (self.reply and self.reply.isRunning()):
            self.on_abort = True
            self.reply.abort()
예제 #36
0
    def importgeopkg(self, layer, branch, message, authorName, authorEmail,
                     interchange):
        QApplication.setOverrideCursor(QCursor(Qt.WaitCursor))
        filename, layername = namesFromLayer(layer)
        r = requests.get(self.url + "beginTransaction",
                         params={"output_format": "json"})
        r.raise_for_status()
        transactionId = r.json()["response"]["Transaction"]["ID"]
        self._checkoutbranch(branch, transactionId)
        payload = {
            "authorEmail": authorEmail,
            "authorName": authorName,
            "message": message,
            'destPath': layername,
            "format": "gpkg",
            "transactionId": transactionId
        }
        # fix_print_with_import
        if interchange:
            payload["interchange"] = True
            filename = self.saveaudittables(filename, layername)
        files = {
            'fileUpload': (os.path.basename(filename), open(filename, 'rb'))
        }

        encoder = MultipartEncoder(files)
        total = float(encoder.len)

        def callback(m):
            done = int(100 * m.bytes_read / total)
            iface.mainWindow().statusBar().showMessage(
                "Transferring geopkg to GeoGig server [{}%]".format(done))

        monitor = MultipartEncoderMonitor(encoder, callback)
        r = requests.post(self.url + "import.json",
                          params=payload,
                          data=monitor,
                          headers={'Content-Type': monitor.content_type})
        self.__log(r.url, r.text, payload, "POST")
        r.raise_for_status()
        resp = r.json()
        taskId = resp["task"]["id"]
        checker = TaskChecker(self.rootUrl, taskId)
        loop = QEventLoop()
        checker.taskIsFinished.connect(loop.exit, Qt.QueuedConnection)
        checker.start()
        loop.exec_(flags=QEventLoop.ExcludeUserInputEvents)
        QApplication.restoreOverrideCursor()
        iface.mainWindow().statusBar().showMessage("")
        if not checker.ok and "error" in checker.response["task"]:
            errorMessage = checker.response["task"]["error"]["message"]
            raise GeoGigException("Cannot import layer: %s" % errorMessage)
        if interchange:
            try:
                nconflicts = checker.response["task"]["result"]["Merge"][
                    "conflicts"]
            except KeyError, e:
                nconflicts = 0
            if nconflicts:
                mergeCommitId = self.HEAD
                importCommitId = checker.response["task"]["result"]["import"][
                    "importCommit"]["id"]
                ancestor = checker.response["task"]["result"]["Merge"][
                    "ancestor"]
                remote = checker.response["task"]["result"]["Merge"]["ours"]
                try:
                    featureIds = checker.response["task"]["result"]["import"][
                        "NewFeatures"]["type"][0].get("ids", [])
                except:
                    featureIds = []
                con = sqlite3.connect(filename)
                cursor = con.cursor()
                geomField = cursor.execute(
                    "SELECT column_name FROM gpkg_geometry_columns WHERE table_name='%s';"
                    % layername).fetchone()[0]

                def _local(fid):
                    cursor.execute(
                        "SELECT gpkg_fid FROM %s_fids WHERE geogig_fid='%s';" %
                        (layername, fid))
                    gpkgfid = int(cursor.fetchone()[0])
                    request = QgsFeatureRequest()
                    request.setFilterFid(gpkgfid)
                    try:
                        feature = next(layer.getFeatures(request))
                    except:
                        return None

                    def _ensureNone(v):
                        if v == NULL:
                            return None
                        else:
                            return v

                    local = {
                        f.name(): _ensureNone(feature[f.name()])
                        for f in layer.pendingFields()
                    }
                    try:
                        local[geomField] = feature.geometry().exportToWkt()
                    except:
                        local[geomField] = None
                    return local

                conflicts = []
                conflictsResponse = _ensurelist(
                    checker.response["task"]["result"]["Merge"]["Feature"])
                for c in conflictsResponse:
                    if c["change"] == "CONFLICT":
                        remoteFeatureId = c["ourvalue"]
                        localFeatureId = c["theirvalue"]
                        localFeature = _local(c["id"].split("/")[-1])
                        conflicts.append(
                            ConflictDiff(self, c["id"], ancestor, remote,
                                         importCommitId, localFeature,
                                         localFeatureId, remoteFeatureId,
                                         transactionId))
                cursor.close()
                con.close()
            else:
                #self._checkoutbranch("master", transactionId)
                self.closeTransaction(transactionId)
                mergeCommitId = checker.response["task"]["result"][
                    "newCommit"]["id"]
                importCommitId = checker.response["task"]["result"][
                    "importCommit"]["id"]
                try:
                    featureIds = checker.response["task"]["result"][
                        "NewFeatures"]["type"][0].get("id", [])
                except:
                    featureIds = []
                conflicts = []
            featureIds = [(f["provided"], f["assigned"]) for f in featureIds]
            return mergeCommitId, importCommitId, conflicts, featureIds
예제 #37
0
class ConnexionOAPI(object):
    """
    Manage connexion to the overpass API
    """
    def __init__(self, url="http://overpass-api.de/api/", output=None):
        """
        Constructor

        @param url:URL of OverPass
        @type url:str

        @param output:Output desired (XML or JSON)
        @type output:str
        """

        if not url:
            url = "http://overpass-api.de/api/"

        self.__url = url
        self.result_path = None

        if output not in (None, "json", "xml"):
            raise OutPutFormatException

        self.__output = output
        self.network = QgsNetworkAccessManager.instance()
        self.network_reply = None
        self.loop = None

    def query(self, query):
        """
        Make a query to the overpass

        @param query:Query to execute
        @type query:str

        @raise OverpassBadRequestException,NetWorkErrorException,
        OverpassTimeoutException

        @return: the result of the query
        @rtype: str
        """

        url_query = QUrl(self.__url + 'interpreter')

        # The output format can be forced (JSON or XML)
        if self.__output:
            query = re.sub(r'output="[a-z]*"',
                           'output="' + self.__output + '"', query)
            query = re.sub(r'\[out:[a-z]*', '[out:' + self.__output, query)

        # noinspection PyCallByClass
        # encoded_query = QUrl.toPercentEncoding(query)
        query_string = QUrlQuery()
        query_string.addQueryItem('data', query)
        query_string.addQueryItem('info', 'QgisQuickOSMPlugin')
        url_query.setQuery(query_string)

        request = QNetworkRequest(url_query)
        # request.setRawHeader("User-Agent", "QuickOSM")
        self.network_reply = self.network.get(request)
        self.loop = QEventLoop()
        self.network.finished.connect(self._end_of_request)
        self.loop.exec_()

        if self.network_reply.error() == QNetworkReply.NoError:
            file_obj = codecs.open(self.result_path, 'r', 'utf-8')
            file_obj.seek(0, 2)
            fsize = file_obj.tell()
            file_obj.seek(max(fsize - 1024, 0), 0)
            lines = file_obj.readlines()

            lines = lines[-10:]  # Get last 10 lines
            timeout = '<remark> runtime error: Query timed out in "[a-z]+" ' \
                      'at line [\d]+ after ([\d]+) seconds. </remark>'
            if re.search(timeout, ''.join(lines)):
                raise OverpassTimeoutException
            else:
                return self.result_path

        elif self.network_reply.error() == QNetworkReply.UnknownContentError:
            raise OverpassBadRequestException
        else:
            raise NetWorkErrorException(suffix="Overpass OSM API")

    def _end_of_request(self):
        tf = QTemporaryFile(os.path.join(QDir.tempPath(),
                                         'request-XXXXXX.osm'))
        tf.setAutoRemove(False)
        tf.open(QIODevice.WriteOnly | QIODevice.Text)
        tf.write(self.network_reply.readAll().simplified())
        tf.close()
        self.result_path = tf.fileName()
        self.loop.quit()
예제 #38
0
class AsyncNetworkAccessManager(object):
    """
    This class is an Async version of NetworkAccessManager trying to mimicks
    QgsNetworkAccessManager insteqad of blocking httplib2.
    The main reason of using AsyncNetworkAccessManager respect
    QgsNetworkAccessManager is that this class manage AuthId in the constructor
    and offer wrapper for updateNetworkReply used to update SSH reply basing
    on authid stored credentials in QGIS AuthDB

    This class mimicks httplib2 by using QgsNetworkAccessManager for all
    network calls.

    The return value is a tuple of (response, content), the first being and
    instance of the Response class, the second being a string that contains
    the response entity body.

    Parameters
    ----------
    debug : bool
        verbose logging if True
    exception_class : Exception
        Custom exception class

    Usage 1 (bloking mode)
    ----------------------
    ::
        nam = NetworkAccessManager(authcgf)
        try:
            (response, content) = nam.request('http://www.example.com')
        except RequestsException, e:
            # Handle exception
            pass

    Usage 2 (No bloking mode)
    -------------------------
    ::
        nam = NetworkAccessManager(authcgf)
        try:
            nam.request('http://www.example.com', blocking=False)
            nam.reply.finished.connect(a_signal_listener)
        except RequestsException, e:
            # Handle exception
            pass

    """

    def __init__(self, authid=None, disable_ssl_certificate_validation=False, exception_class=None, debug=True):
        self.disable_ssl_certificate_validation = disable_ssl_certificate_validation
        self.authid = authid
        self.reply = None
        self.debug = debug
        self.onAbort = False
        self.blockingMode = False
        self.exception_class = exception_class
        self.http_call_result = Response({
            'status': 0,
            'status_code': 0,
            'status_message': '',
            'text' : '',
            'ok': False,
            'headers': {},
            'reason': '',
            'exception': None,
        })

    def msg_log(self, msg):
        if self.debug:
            QgsMessageLog.logMessage(msg, "AsyncNetworkAccessManager")

    def httpResult(self):
        return self.http_call_result

    def request(self, url, method="GET", body=None, headers=None, redirections=DEFAULT_MAX_REDIRECTS, connection_type=None, blocking=True):
        """
        Make a network request by calling QgsNetworkAccessManager.
        redirections argument is ignored and is here only for httplib2 compatibility.
        """
        self.msg_log(u'http_call request: {0}'.format(url))

        self.blockingMode = blocking
        req = QNetworkRequest()
        # Avoid double quoting form QUrl
        url = urllib.parse.unquote(url)
        req.setUrl(QUrl(url))
        if headers is not None:
            # This fixes a wierd error with compressed content not being correctly
            # inflated.
            # If you set the header on the QNetworkRequest you are basically telling
            # QNetworkAccessManager "I know what I'm doing, please don't do any content
            # encoding processing".
            # See: https://bugs.webkit.org/show_bug.cgi?id=63696#c1
            try:
                del headers['Accept-Encoding']
            except KeyError:
                pass
            for k, v in list(headers.items()):
                self.msg_log("Setting header %s to %s" % (k, v))
                req.setRawHeader(k, v)
        if self.authid:
            self.msg_log("Update request w/ authid: {0}".format(self.authid))
            QgsAuthManager.instance().updateNetworkRequest(req, self.authid)
        if self.reply is not None and self.reply.isRunning():
            self.reply.close()
        if method.lower() == 'delete':
            func = getattr(QgsNetworkAccessManager.instance(), 'deleteResource')
        else:
            func = getattr(QgsNetworkAccessManager.instance(), method.lower())
        # Calling the server ...
        # Let's log the whole call for debugging purposes:
        self.onAbort = False
        self.msg_log("Sending %s request to %s" % (method.upper(), req.url().toString()))
        headers = {str(h): str(req.rawHeader(h)) for h in req.rawHeaderList()}
        for k, v in list(headers.items()):
            self.msg_log("%s: %s" % (k, v))
        if method.lower() in ['post', 'put']:
            if isinstance(body, file):
                body = body.read()
            self.reply = func(req, body)
        else:
            self.reply = func(req)
        if self.authid:
            self.msg_log("Update reply w/ authid: {0}".format(self.authid))
            QgsAuthManager.instance().updateNetworkReply(self.reply, self.authid)

        self.reply.sslErrors.connect(self.sslErrors)
        self.reply.finished.connect(self.replyFinished)

        # Call
        self.reply.downloadProgress.connect(self.downloadProgress)

        # block if blocking mode otherwise return immediately
        # it's up to the caller to manage listeners in case of no blocking mode
        if not self.blockingMode:
            return (None, None)

        self.el = QEventLoop()
        self.reply.finished.connect(self.el.quit)

        # Catch all exceptions (and clean up requests)
        try:
            self.el.exec_(QEventLoop.ExcludeUserInputEvents)
        except Exception as e:
            raise e
        finally:
            if self.reply is not None:
                if self.reply.isRunning():
                    self.reply.close()
                self.msg_log("Deleting reply ...")
                # Disconnect all slots
                self.reply.sslErrors.disconnect(self.sslErrors)
                self.reply.finished.disconnect(self.replyFinished)
                self.reply.finished.disconnect(self.el.quit)
                self.reply.downloadProgress.disconnect(self.downloadProgress)
                self.reply.deleteLater()
                self.reply = None
            else:
                self.msg_log("Reply was already deleted ...")
        if not self.http_call_result.ok:
            if self.http_call_result.exception and not self.exception_class:
                raise self.http_call_result.exception
            else:
                raise self.exception_class(self.http_call_result.reason)
        return (self.http_call_result, self.http_call_result.text)


    @pyqtSlot()
    def downloadProgress(self, bytesReceived, bytesTotal):
        """Keep track of the download progress"""
        self.msg_log("downloadProgress %s of %s ..." % (bytesReceived, bytesTotal))

    @pyqtSlot()
    def replyFinished(self):
        err = self.reply.error()
        httpStatus = self.reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)
        httpStatusMessage = self.reply.attribute(QNetworkRequest.HttpReasonPhraseAttribute)
        self.http_call_result.status_code = httpStatus
        self.http_call_result.status = httpStatus
        self.http_call_result.status_message = httpStatusMessage
        # get result
        ba = self.reply.readAll()
        self.http_call_result.text = bytes(ba)
        # dump header
        for k, v in self.reply.rawHeaderPairs():
            self.http_call_result.headers[str(k)] = str(v)
            self.http_call_result.headers[str(k).lower()] = str(v)
        if err != QNetworkReply.NoError:
            # check if errorString is empty, if so, then set err string as
            # reply dump
            if re.match('(.)*server replied: $', self.reply.errorString()):
                errString = self.reply.errorString() + self.http_call_result.text
            else:
                errString = self.reply.errorString()
            msg = "Network error #{0}: {1}".format(
                self.http_call_result.status_code, errString)
            self.http_call_result.reason = msg
            self.http_call_result.ok = False
            self.msg_log(msg)
            if err == QNetworkReply.TimeoutError:
                self.http_call_result.exception = RequestsExceptionTimeout(msg)
            elif err == QNetworkReply.ConnectionRefusedError:
                self.http_call_result.exception = RequestsExceptionConnectionError(msg)
            elif err == QNetworkReply.OperationCanceledError:
                # request abort by calling ANAM.abort() => cancelling by the user
                if self.onAbort:
                    self.http_call_result.exception = RequestsExceptionUserAbort(msg)
                else:
                    self.http_call_result.exception = RequestsException(msg)
            else:
                self.http_call_result.exception = RequestsException(msg)
        else:
            msg = "Network success #{0}".format(self.reply.error())
            self.http_call_result.reason = msg
            self.msg_log(msg)

            self.http_call_result.ok = True

        # Let's log the whole response for debugging purposes:
        self.msg_log("Got response %s %s from %s" % \
                    (self.http_call_result.status_code,
                     self.http_call_result.status_message,
                     self.reply.url().toString()))
        for k, v in list(self.http_call_result.headers.items()):
            self.msg_log("%s: %s" % (k, v))
        if len(self.http_call_result.text) < 1024:
            self.msg_log("Payload :\n%s" % self.http_call_result.text)
        else:
            self.msg_log("Payload is > 1 KB ...")

    @pyqtSlot()
    def sslErrors(self, reply, ssl_errors):
        """
        Handle SSL errors, logging them if debug is on and ignoring them
        if disable_ssl_certificate_validation is set.
        """
        if ssl_errors:
            for v in ssl_errors:
                self.msg_log("SSL Error: %s" % v)
        if self.disable_ssl_certificate_validation:
            reply.ignoreSslErrors()

    @pyqtSlot()
    def abort(self):
        """
        Handle request to cancel HTTP call
        """
        if (self.reply and self.reply.isRunning()):
            self.onAbort = True
            self.reply.abort()
예제 #39
0
class TestPyQgsWFSProviderGUI(unittest.TestCase):

    @classmethod
    def setUpClass(cls):
        """Run before all tests"""
        QCoreApplication.setOrganizationName("QGIS_Test")
        QCoreApplication.setOrganizationDomain("QGIS_TestPyQgsWFSProviderGUI.com")
        QCoreApplication.setApplicationName("QGIS_TestPyQgsWFSProviderGUI")
        QSettings().clear()
        start_app()

        cls.basetestpath = tempfile.mkdtemp().replace('\\', '/')

    @classmethod
    def tearDownClass(cls):
        """Run after all tests"""
        QSettings().clear()
        if cls.basetestpath is not None:
            shutil.rmtree(cls.basetestpath, True)

    def get_button(self, main_dialog, text):
        buttonBox = main_dialog.findChild(QDialogButtonBox, "buttonBox")
        self.assertIsNotNone(buttonBox)
        button = None
        for button in buttonBox.buttons():
            if str(button.text()) == text:
                return button
        self.assertIsNotNone(None)
        return None

    def get_button_add(self, main_dialog):
        return self.get_button(main_dialog, "&Add")

    def get_button_build_query(self, main_dialog):
        return self.get_button(main_dialog, "&Build query")

    def wait_object_destruction(self, my_object):
        loop = QEventLoop()
        name = my_object.objectName()
        my_object.destroyed.connect(loop.quit)
        loop.exec_()
        self.assertIsNone(find_window(name))
        return None

    def test(self):

        # This test is quite fragile as it depends on windows manager behaviour
        # regarding focus, so not surprising it doesn't pass
        # on other platforms than Linux.
        #if 'TRAVIS_OS_NAME' in os.environ and os.environ['TRAVIS_OS_NAME'] == 'osx':
        #    return

        main_dialog = QgsProviderRegistry.instance().selectWidget("WFS")
        main_dialog.setProperty("hideDialogs", True)

        self.assertIsNotNone(main_dialog)

        # Create new connection
        btnNew = main_dialog.findChild(QWidget, "btnNew")
        self.assertIsNotNone(btnNew)
        QTest.mouseClick(btnNew, Qt.LeftButton)
        new_conn = find_window('QgsNewHttpConnectionBase')
        self.assertIsNotNone(new_conn)
        txtName = new_conn.findChild(QLineEdit, "txtName")
        self.assertIsNotNone(txtName)
        txtName.setText("test_connection")
        txtUrl = new_conn.findChild(QLineEdit, "txtUrl")
        self.assertIsNotNone(txtUrl)
        txtUrl.setText("test_url")
        new_conn.accept()

        # Wait for object to be destroyed
        new_conn = self.wait_object_destruction(new_conn)

        # Try to connect
        btnConnect = main_dialog.findChild(QWidget, "btnConnect")
        self.assertIsNotNone(btnConnect)
        QTest.mouseClick(btnConnect, Qt.LeftButton)
        # Depends on asynchronous signal
        QApplication.processEvents()
        error_box = find_window('WFSCapabilitiesErrorBox')
        self.assertIsNotNone(error_box)
        # Close error box
        error_box.accept()

        # Wait for object to be destroyed
        error_box = self.wait_object_destruction(error_box)

        # Edit connection
        btnEdit = main_dialog.findChild(QWidget, "btnEdit")
        self.assertIsNotNone(btnEdit)
        QTest.mouseClick(btnEdit, Qt.LeftButton)
        new_conn = find_window('QgsNewHttpConnectionBase',)
        self.assertIsNotNone(new_conn)
        txtName = new_conn.findChild(QLineEdit, "txtName")
        self.assertIsNotNone(txtName)
        txtName.setText("test_connection")
        txtUrl = new_conn.findChild(QLineEdit, "txtUrl")
        self.assertIsNotNone(txtUrl)

        endpoint = self.basetestpath + '/fake_qgis_http_endpoint'
        expected_endpoint = endpoint
        if sys.platform == 'win32' and expected_endpoint[1] == ':':
            expected_endpoint = expected_endpoint[0] + expected_endpoint[2:]
        with open(sanitize(endpoint, '?SERVICE=WFS?REQUEST=GetCapabilities?ACCEPTVERSIONS=2.0.0,1.1.0,1.0.0'), 'wb') as f:
            f.write("""
<wfs:WFS_Capabilities version="2.0.0" xmlns="http://www.opengis.net/wfs/2.0" xmlns:wfs="http://www.opengis.net/wfs/2.0" xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:gml="http://schemas.opengis.net/gml/3.2" xmlns:fes="http://www.opengis.net/fes/2.0">
  <FeatureTypeList>
    <FeatureType>
      <Name>my:typename</Name>
      <Title>Title</Title>
      <Abstract>Abstract</Abstract>
      <DefaultCRS>urn:ogc:def:crs:EPSG::4326</DefaultCRS>
      <ows:WGS84BoundingBox>
        <ows:LowerCorner>-71.123 66.33</ows:LowerCorner>
        <ows:UpperCorner>-65.32 78.3</ows:UpperCorner>
      </ows:WGS84BoundingBox>
    </FeatureType>
  </FeatureTypeList>
  <fes:Filter_Capabilities>
    <fes:Spatial_Capabilities>
      <fes:GeometryOperands>
        <fes:GeometryOperand name="gml:Envelope"/>
        <fes:GeometryOperand name="gml:Point"/>
        <fes:GeometryOperand name="gml:MultiPoint"/>
        <fes:GeometryOperand name="gml:LineString"/>
        <fes:GeometryOperand name="gml:MultiLineString"/>
        <fes:GeometryOperand name="gml:Polygon"/>
        <fes:GeometryOperand name="gml:MultiPolygon"/>
        <fes:GeometryOperand name="gml:MultiGeometry"/>
      </fes:GeometryOperands>
      <fes:SpatialOperators>
        <fes:SpatialOperator name="Disjoint"/>
        <fes:SpatialOperator name="Equals"/>
        <fes:SpatialOperator name="DWithin"/>
        <fes:SpatialOperator name="Beyond"/>
        <fes:SpatialOperator name="Intersects"/>
        <fes:SpatialOperator name="Touches"/>
        <fes:SpatialOperator name="Crosses"/>
        <fes:SpatialOperator name="Within"/>
        <fes:SpatialOperator name="Contains"/>
        <fes:SpatialOperator name="Overlaps"/>
        <fes:SpatialOperator name="BBOX"/>
      </fes:SpatialOperators>
    </fes:Spatial_Capabilities>
    <fes:Functions>
      <fes:Function name="abs">
        <fes:Returns>xs:int</fes:Returns>
        <fes:Arguments>
          <fes:Argument name="param">
            <fes:Type>xs:int</fes:Type>
          </fes:Argument>
        </fes:Arguments>
      </fes:Function>
    </fes:Functions>
  </fes:Filter_Capabilities>
</wfs:WFS_Capabilities>""".encode('UTF-8'))

        txtUrl.setText("http://" + endpoint)
        new_conn.accept()

        # Wait for object to be destroyed
        new_conn = self.wait_object_destruction(new_conn)

        # Try to connect
        btnConnect = main_dialog.findChild(QWidget, "btnConnect")
        self.assertIsNotNone(btnConnect)
        QTest.mouseClick(btnConnect, Qt.LeftButton)

        # We need to show (and raise for Mac) the dialog so that the focus changes
        self.loop = QEventLoop()
        treeView = main_dialog.findChild(QTreeView, "treeView")
        treeView.selectionModel().currentRowChanged.connect(main_dialog.hide)
        treeView.selectionModel().currentRowChanged.connect(self.loop.quit)
        main_dialog.show()
        main_dialog.raise_()
        self.loop.exec_()

        # Add layer
        buttonAdd = self.get_button_add(main_dialog)
        self.assertTrue(buttonAdd.isEnabled())

        self.addWfsLayer_uri = None
        self.addWfsLayer_layer_name = None
        main_dialog.addWfsLayer.connect(self.slotAddWfsLayer)
        QTest.mouseClick(buttonAdd, Qt.LeftButton)
        self.assertEqual(self.addWfsLayer_uri, ' retrictToRequestBBOX=\'1\' srsname=\'EPSG:4326\' typename=\'my:typename\' url=\'' + "http://" + expected_endpoint + '\' version=\'auto\' table="" sql=')
        self.assertEqual(self.addWfsLayer_layer_name, 'my:typename')

        # Click on Build Query
        buttonBuildQuery = self.get_button_build_query(main_dialog)
        self.assertTrue(buttonBuildQuery.isEnabled())
        QTest.mouseClick(buttonBuildQuery, Qt.LeftButton)
        error_box = find_window('WFSFeatureTypeErrorBox')
        self.assertIsNotNone(error_box)
        # Close error box
        error_box.accept()
        # Wait for object to be destroyed
        error_box = self.wait_object_destruction(error_box)

        # Click again but with valid DescribeFeatureType

        with open(sanitize(endpoint, '?SERVICE=WFS&REQUEST=DescribeFeatureType&VERSION=2.0.0&TYPENAME=my:typename'), 'wb') as f:
            f.write("""
<xsd:schema xmlns:my="http://my" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" targetNamespace="http://my">
  <xsd:import namespace="http://www.opengis.net/gml/3.2"/>
  <xsd:complexType name="typenameType">
    <xsd:complexContent>
      <xsd:extension base="gml:AbstractFeatureType">
        <xsd:sequence>
          <xsd:element maxOccurs="1" minOccurs="0" name="intfield" nillable="true" type="xsd:int"/>
          <xsd:element maxOccurs="1" minOccurs="0" name="geometryProperty" nillable="true" type="gml:PolygonPropertyType"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>
  <xsd:element name="typename" substitutionGroup="gml:_Feature" type="my:typenameType"/>
</xsd:schema>
""".encode('UTF-8'))
        QTest.mouseClick(buttonBuildQuery, Qt.LeftButton)

        # Check that the combos are properly initialized
        dialog = find_window('QgsSQLComposerDialogBase')
        self.assertIsNotNone(dialog)

        mTablesCombo = dialog.findChild(QComboBox, "mTablesCombo")
        self.assertIsNotNone(mTablesCombo)
        self.assertEqual(mTablesCombo.itemText(1), 'typename (Title)')

        mColumnsCombo = dialog.findChild(QComboBox, "mColumnsCombo")
        self.assertIsNotNone(mColumnsCombo)
        self.assertEqual(mColumnsCombo.itemText(1), 'intfield (int)')
        self.assertEqual(mColumnsCombo.itemText(mColumnsCombo.count() - 2), 'geometryProperty (geometry)')
        self.assertEqual(mColumnsCombo.itemText(mColumnsCombo.count() - 1), '*')

        mFunctionsCombo = dialog.findChild(QComboBox, "mFunctionsCombo")
        self.assertIsNotNone(mFunctionsCombo)
        self.assertEqual(mFunctionsCombo.itemText(1), 'abs(param: int): int')

        mSpatialPredicatesCombo = dialog.findChild(QComboBox, "mSpatialPredicatesCombo")
        self.assertIsNotNone(mSpatialPredicatesCombo)
        self.assertEqual(mSpatialPredicatesCombo.itemText(1), 'ST_Disjoint(geometry, geometry): boolean')

        mWhereEditor = dialog.findChild(QTextEdit, "mWhereEditor")
        self.assertIsNotNone(mWhereEditor)
        mWhereEditor.setText('1 = 1')

        dialog.accept()
        # Wait for object to be destroyed
        dialog = self.wait_object_destruction(dialog)

        # Add layer
        buttonAdd = self.get_button_add(main_dialog)
        self.assertTrue(buttonAdd.isEnabled())

        self.addWfsLayer_uri = None
        self.addWfsLayer_layer_name = None
        main_dialog.addWfsLayer.connect(self.slotAddWfsLayer)
        QTest.mouseClick(buttonAdd, Qt.LeftButton)
        self.assertEqual(self.addWfsLayer_uri, ' retrictToRequestBBOX=\'1\' srsname=\'EPSG:4326\' typename=\'my:typename\' url=\'' + "http://" + expected_endpoint + '\' version=\'auto\' table="" sql=SELECT * FROM typename WHERE 1 = 1')
        self.assertEqual(self.addWfsLayer_layer_name, 'my:typename')

        #main_dialog.setProperty("hideDialogs", None)
        #main_dialog.exec_()

    def slotAddWfsLayer(self, uri, layer_name):
        self.addWfsLayer_uri = uri
        self.addWfsLayer_layer_name = layer_name
예제 #40
0
class Nominatim:
    """Manage connexion to Nominatim."""
    def __init__(self,
                 url="https://nominatim.openstreetmap.org/search?format=json"):
        """
        Constructor
        @param url:URL of Nominatim
        @type url:str
        """

        self.__url = url
        self.network = QgsNetworkAccessManager.instance()
        self.data = None
        self.network_reply = None
        self.loop = None

    def query(self, query):
        """
        Perform a nominatim query

        @param query: Query to execute
        @type query: str

        @raise NetWorkErrorException

        @return: the result of the query
        @rtype: str
        """

        url_query = QUrl(self.__url)

        # query = QUrl.toPercentEncoding(query)
        query_string = QUrlQuery()
        query_string.addQueryItem('q', query)
        query_string.addQueryItem('format', 'json')
        query_string.addQueryItem('info', 'QgisQuickOSMPlugin')
        url_query.setQuery(query_string)

        request = QNetworkRequest(url_query)
        # request.setRawHeader("User-Agent", "QuickOSM")
        self.network_reply = self.network.get(request)
        self.loop = QEventLoop()
        self.network.finished.connect(self._end_of_request)
        self.loop.exec_()

        if self.network_reply.error() == QNetworkReply.NoError:
            return json.loads(self.data)
        else:
            raise NetWorkErrorException(suffix="Nominatim API")

    def _end_of_request(self):
        self.data = self.network_reply.readAll().data().decode('utf-8')
        self.loop.quit()

    def get_first_polygon_from_query(self, query):
        """
        Get first OSM_ID of a Nominatim area

        @param query: Query to execute
        @type query: str

        @raise NominatimAreaException:

        @return: First relation's osm_id
        @rtype: str
        """
        data = self.query(query)
        for result in data:
            if result['osm_type'] == "relation":
                return result['osm_id']

        # If no result has been return
        raise NominatimAreaException

    def get_first_point_from_query(self, query):
        """
        Get first longitude, latitude of a Nominatim point

        @param query: Query to execute
        @type query: str

        @raise NominatimAreaException:

        @return: First relation's osm_id
        @rtype: str
        """
        data = self.query(query)
        for result in data:
            if result['osm_type'] == "node":
                return result['lon'], result['lat']

        # If no result has been return
        raise NominatimAreaException
예제 #41
0
class NetworkAccessManager(object):
    """
    This class mimicks httplib2 by using QgsNetworkAccessManager for all
    network calls.

    The return value is a tuple of (response, content), the first being and
    instance of the Response class, the second being a string that contains
    the response entity body.

    Parameters
    ----------
    debug : bool
        verbose logging if True
    exception_class : Exception
        Custom exception class

    Usage 1 (blocking mode)
    -----
    ::
        nam = NetworkAccessManager(authcgf)
        try:
            (response, content) = nam.request('http://www.example.com')
        except RequestsException as e:
            # Handle exception
            pass

    Usage 2 (Non blocking mode)
    -------------------------
    ::
        NOTE! if blocking mode returns immediatly
              it's up to the caller to manage listeners in case
              of non blocking mode

        nam = NetworkAccessManager(authcgf)
        try:
            nam.request('http://www.example.com', blocking=False)
            nam.reply.finished.connect(a_signal_listener)
        except RequestsException as e:
            # Handle exception
            pass

        Get response using method:
        nam.httpResult() that return a dictionary with keys:
            'status' - http code result come from reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)
            'status_code' - http code result come from reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)
            'status_message' - reply message string from reply.attribute(QNetworkRequest.HttpReasonPhraseAttribute)
            'content' - bytearray returned from reply
            'ok' - request success [True, False]
            'headers' - Dicionary containing the reply header
            'reason' - fomatted message string with reply.errorString()
            'exception' - the exception returne dduring execution
    """
    def __init__(self,
                 authid=None,
                 disable_ssl_certificate_validation=False,
                 exception_class=None,
                 debug=True,
                 timeout=None):
        self.disable_ssl_certificate_validation = disable_ssl_certificate_validation
        self.authid = authid
        self.reply = None
        self.debug = debug
        self.exception_class = exception_class
        self.on_abort = False
        self.blocking_mode = False
        self.http_call_result = Response({
            'status': 0,
            'status_code': 0,
            'status_message': '',
            'content': '',
            'ok': False,
            'headers': {},
            'reason': '',
            'exception': None,
        })
        if timeout is None:
            timeout = 60
        self.timeout = timeout

    def msg_log(self, msg):
        if self.debug:
            QgsMessageLog.logMessage(msg, "NetworkAccessManager")

    def httpResult(self):
        return self.http_call_result

    def auth_manager(self):
        return QgsApplication.authManager()

    def request(self,
                url,
                method="GET",
                body=None,
                headers=None,
                redirections=DEFAULT_MAX_REDIRECTS,
                connection_type=None,
                blocking=True):
        """
        Make a network request by calling QgsNetworkAccessManager.
        redirections argument is ignored and is here only for httplib2 compatibility.
        """
        self.msg_log(u'http_call request: {0}'.format(url))

        self.blocking_mode = blocking
        req = QNetworkRequest()
        # Avoid double quoting form QUrl
        url = urllib.parse.unquote(url)
        req.setUrl(QUrl(url))
        if headers is not None:
            # This fixes a wierd error with compressed content not being correctly
            # inflated.
            # If you set the header on the QNetworkRequest you are basically telling
            # QNetworkAccessManager "I know what I'm doing, please don't do any content
            # encoding processing".
            # See: https://bugs.webkit.org/show_bug.cgi?id=63696#c1
            try:
                del headers['Accept-Encoding']
            except KeyError:
                pass
            for k, v in list(headers.items()):
                self.msg_log("Setting header %s to %s" % (k, v))
                if k and v:
                    req.setRawHeader(k.encode(), v.encode())
        if self.authid:
            self.msg_log("Update request w/ authid: {0}".format(self.authid))
            self.auth_manager().updateNetworkRequest(req, self.authid)
        if self.reply is not None and self.reply.isRunning():
            self.reply.close()
        if method.lower() == 'delete':
            func = getattr(QgsNetworkAccessManager.instance(),
                           'deleteResource')
        else:
            func = getattr(QgsNetworkAccessManager.instance(), method.lower())
        # Calling the server ...
        # Let's log the whole call for debugging purposes:
        self.msg_log("Sending %s request to %s" %
                     (method.upper(), req.url().toString()))
        self.on_abort = False
        headers = {str(h): str(req.rawHeader(h)) for h in req.rawHeaderList()}
        for k, v in list(headers.items()):
            self.msg_log("%s: %s" % (k, v))
        if method.lower() in ['post', 'put']:
            if isinstance(body, io.IOBase):
                body = body.read()
            if isinstance(body, str):
                body = body.encode()
            if isinstance(body, dict):
                body = str(json.dumps(body)).encode(encoding='utf-8')
            self.reply = func(req, body)
        else:
            self.reply = func(req)
        if self.authid:
            self.msg_log("Update reply w/ authid: {0}".format(self.authid))
            self.auth_manager().updateNetworkReply(self.reply, self.authid)

        QgsNetworkAccessManager.instance().setTimeout(int(self.timeout) * 1000)

        # necessary to trap local timeout manage by QgsNetworkAccessManager
        # calling QgsNetworkAccessManager::abortRequest
        QgsNetworkAccessManager.instance().requestTimedOut.connect(
            self.requestTimedOut)

        self.reply.sslErrors.connect(self.sslErrors)
        self.reply.finished.connect(self.replyFinished)
        self.reply.downloadProgress.connect(self.downloadProgress)

        # block if blocking mode otherwise return immediatly
        # it's up to the caller to manage listeners in case of no blocking mode
        if not self.blocking_mode:
            return (None, None)

        # Call and block
        self.el = QEventLoop()
        self.reply.finished.connect(self.el.quit)

        # Catch all exceptions (and clean up requests)
        try:
            self.el.exec_(QEventLoop.ExcludeUserInputEvents)
        except Exception as e:
            raise e

        if self.reply:
            self.reply.finished.disconnect(self.el.quit)

        # emit exception in case of error
        if not self.http_call_result.ok:
            if self.http_call_result.exception and not self.exception_class:
                raise self.http_call_result.exception
            else:
                raise self.exception_class(self.http_call_result.reason)

        return (self.http_call_result, self.http_call_result.content)

    def downloadProgress(self, bytesReceived, bytesTotal):
        """Keep track of the download progress"""
        #self.msg_log("downloadProgress %s of %s ..." % (bytesReceived, bytesTotal))
        pass

    def requestTimedOut(self, reply):
        """Trap the timeout. In Async mode requestTimedOut is called after replyFinished"""
        # adapt http_call_result basing on receiving qgs timer timout signal
        self.exception_class = RequestsExceptionTimeout
        self.http_call_result.exception = RequestsExceptionTimeout(
            "Timeout error")

    def replyFinished(self):
        err = self.reply.error()
        httpStatus = self.reply.attribute(
            QNetworkRequest.HttpStatusCodeAttribute)
        httpStatusMessage = self.reply.attribute(
            QNetworkRequest.HttpReasonPhraseAttribute)
        self.http_call_result.status_code = httpStatus
        self.http_call_result.status = httpStatus
        self.http_call_result.status_message = httpStatusMessage
        for k, v in self.reply.rawHeaderPairs():
            self.http_call_result.headers[str(
                k.data(), encoding='utf-8')] = str(v.data(), encoding='utf-8')
            self.http_call_result.headers[str(
                k.data(), encoding='utf-8').lower()] = str(v.data(),
                                                           encoding='utf-8')

        if err != QNetworkReply.NoError:
            # handle error
            # check if errorString is empty, if so, then set err string as
            # reply dump
            if re.match('(.)*server replied: $', self.reply.errorString()):
                errString = self.reply.errorString(
                ) + self.http_call_result.content
            else:
                errString = self.reply.errorString()
            # check if self.http_call_result.status_code is available (client abort
            # does not produce http.status_code)
            if self.http_call_result.status_code:
                msg = "Network error #{0}: {1}".format(
                    self.http_call_result.status_code, errString)
            else:
                msg = "Network error: {0}".format(errString)

            self.http_call_result.reason = msg
            self.http_call_result.text = str(self.reply.readAll().data(),
                                             encoding='utf-8')
            self.http_call_result.ok = False
            self.msg_log(msg)
            # set return exception
            if err == QNetworkReply.TimeoutError:
                self.http_call_result.exception = RequestsExceptionTimeout(msg)

            elif err == QNetworkReply.ConnectionRefusedError:
                self.http_call_result.exception = RequestsExceptionConnectionError(
                    msg)

            elif err == QNetworkReply.OperationCanceledError:
                # request abort by calling NAM.abort() => cancelled by the user
                if self.on_abort:
                    self.http_call_result.exception = RequestsExceptionUserAbort(
                        msg)
                else:
                    self.http_call_result.exception = RequestsException(msg)

            else:
                self.http_call_result.exception = RequestsException(msg)

            # overload exception to the custom exception if available
            if self.exception_class:
                self.http_call_result.exception = self.exception_class(msg)

        else:
            # Handle redirections
            redirectionUrl = self.reply.attribute(
                QNetworkRequest.RedirectionTargetAttribute)
            if redirectionUrl is not None and redirectionUrl != self.reply.url(
            ):
                if redirectionUrl.isRelative():
                    redirectionUrl = self.reply.url().resolved(redirectionUrl)

                msg = "Redirected from '{}' to '{}'".format(
                    self.reply.url().toString(), redirectionUrl.toString())
                self.msg_log(msg)

                self.reply.deleteLater()
                self.reply = None
                self.request(redirectionUrl.toString())

            # really end request
            else:
                msg = "Network success #{0}".format(self.reply.error())
                self.http_call_result.reason = msg
                self.msg_log(msg)

                ba = self.reply.readAll()
                self.http_call_result.content = bytes(ba)
                self.http_call_result.text = str(ba.data(), encoding='utf-8')
                self.http_call_result.ok = True

        # Let's log the whole response for debugging purposes:
        self.msg_log("Got response %s %s from %s" % \
                    (self.http_call_result.status_code,
                     self.http_call_result.status_message,
                     self.reply.url().toString()))
        for k, v in list(self.http_call_result.headers.items()):
            self.msg_log("%s: %s" % (k, v))
        if len(self.http_call_result.content) < 1024:
            self.msg_log("Payload :\n%s" % self.http_call_result.text)
        else:
            self.msg_log("Payload is > 1 KB ...")

        # clean reply
        if self.reply is not None:
            if self.reply.isRunning():
                self.reply.close()
            self.msg_log("Deleting reply ...")
            # Disconnect all slots
            self.reply.sslErrors.disconnect(self.sslErrors)
            self.reply.finished.disconnect(self.replyFinished)
            self.reply.downloadProgress.disconnect(self.downloadProgress)
            self.reply.deleteLater()
            self.reply = None
        else:
            self.msg_log("Reply was already deleted ...")

    def sslErrors(self, ssl_errors):
        """
        Handle SSL errors, logging them if debug is on and ignoring them
        if disable_ssl_certificate_validation is set.
        """
        if ssl_errors:
            for v in ssl_errors:
                self.msg_log("SSL Error: %s" % v.errorString())
        if self.disable_ssl_certificate_validation:
            self.reply.ignoreSslErrors()

    def abort(self):
        """
        Handle request to cancel HTTP call
        """
        if (self.reply and self.reply.isRunning()):
            self.on_abort = True
            self.reply.abort()
예제 #42
0
    def upload_files(self, layer, field_index, features):
        """
        Upload given features' source files to remote server and return a dict
        formatted as changeAttributeValues expects to update 'datos' attribute
        to a remote location.
        """
        if not QSettings().value(
                'Asistente-LADM_COL/sources/document_repository', False, bool):
            self.message_with_duration_emitted.emit(
                QCoreApplication.translate(
                    "SourceHandler",
                    "The source files were not uploaded to the document repository because you have that option unchecked. You can still upload the source files later using the 'Upload Pending Source Files' menu."
                ), Qgis.Info, 10)
            return dict()

        # Test if we have Internet connection and a valid service
        dlg = self.qgis_utils.get_settings_dialog()
        res, msg = dlg.is_source_service_valid()

        if not res:
            msg['text'] = QCoreApplication.translate(
                "SourceHandler",
                "No file could be uploaded to the document repository. You can do it later from the 'Upload Pending Source Files' menu. Reason: {}"
            ).format(msg['text'])
            self.message_with_duration_emitted.emit(
                msg['text'], Qgis.Info,
                20)  # The data is still saved, so always show Info msg
            return dict()

        file_features = [
            feature for feature in features if not feature[field_index] == NULL
            and os.path.isfile(feature[field_index])
        ]
        total = len(features)
        not_found = total - len(file_features)

        upload_dialog = UploadProgressDialog(len(file_features), not_found)
        upload_dialog.show()
        count = 0
        upload_errors = 0
        new_values = dict()

        for feature in file_features:
            data_url = feature[field_index]
            file_name = os.path.basename(data_url)

            nam = QNetworkAccessManager()
            #reply.downloadProgress.connect(upload_dialog.update_current_progress)

            multiPart = QHttpMultiPart(QHttpMultiPart.FormDataType)
            textPart = QHttpPart()
            textPart.setHeader(QNetworkRequest.ContentDispositionHeader,
                               QVariant("form-data; name=\"driver\""))
            textPart.setBody(QByteArray().append('Local'))

            filePart = QHttpPart()
            filePart.setHeader(
                QNetworkRequest.ContentDispositionHeader,
                QVariant("form-data; name=\"file\"; filename=\"{}\"".format(
                    file_name)))
            file = QFile(data_url)
            file.open(QIODevice.ReadOnly)

            filePart.setBodyDevice(file)
            file.setParent(
                multiPart
            )  # we cannot delete the file now, so delete it with the multiPart

            multiPart.append(filePart)
            multiPart.append(textPart)

            service_url = '/'.join([
                QSettings().value(
                    'Asistente-LADM_COL/sources/service_endpoint',
                    DEFAULT_ENDPOINT_SOURCE_SERVICE),
                SOURCE_SERVICE_UPLOAD_SUFFIX
            ])
            request = QNetworkRequest(QUrl(service_url))
            reply = nam.post(request, multiPart)
            #reply.uploadProgress.connect(upload_dialog.update_current_progress)
            reply.error.connect(self.error_returned)
            multiPart.setParent(reply)

            # We'll block execution until we get response from the server
            loop = QEventLoop()
            reply.finished.connect(loop.quit)
            loop.exec_()

            response = reply.readAll()
            data = QTextStream(response, QIODevice.ReadOnly)
            content = data.readAll()

            if content is None:
                self.log.logMessage(
                    "There was an error uploading file '{}'".format(data_url),
                    PLUGIN_NAME, Qgis.Critical)
                upload_errors += 1
                continue

            try:
                response = json.loads(content)
            except json.decoder.JSONDecodeError:
                self.log.logMessage(
                    "Couldn't parse JSON response from server for file '{}'!!!"
                    .format(data_url), PLUGIN_NAME, Qgis.Critical)
                upload_errors += 1
                continue

            if 'error' in response:
                self.log.logMessage(
                    "STATUS: {}. ERROR: {} MESSAGE: {} FILE: {}".format(
                        response['status'], response['error'],
                        response['message'], data_url), PLUGIN_NAME,
                    Qgis.Critical)
                upload_errors += 1
                continue

            reply.deleteLater()

            if 'url' not in response:
                self.log.logMessage(
                    "'url' attribute not found in JSON response for file '{}'!"
                    .format(data_url), PLUGIN_NAME, Qgis.Critical)
                upload_errors += 1
                continue

            url = self.get_file_url(response['url'])
            new_values[feature.id()] = {field_index: url}

            count += 1
            upload_dialog.update_total_progress(count)

        if not_found > 0:
            self.message_with_duration_emitted.emit(
                QCoreApplication.translate(
                    "SourceHandler",
                    "{} out of {} records {} not uploaded to the document repository because {} file path is NULL or it couldn't be found in the local disk!"
                ).format(
                    not_found, total,
                    QCoreApplication.translate("SourceHandler", "was")
                    if not_found == 1 else QCoreApplication.translate(
                        "SourceHandler", "were"),
                    QCoreApplication.translate("SourceHandler", "its")
                    if not_found == 1 else QCoreApplication.translate(
                        "SourceHandler", "their")), Qgis.Info, 0)
        if len(new_values):
            self.message_with_duration_emitted.emit(
                QCoreApplication.translate(
                    "SourceHandler",
                    "{} out of {} files {} uploaded to the document repository and {} remote location stored in the database!"
                ).format(
                    len(new_values), total,
                    QCoreApplication.translate("SourceHandler", "was")
                    if len(new_values) == 1 else QCoreApplication.translate(
                        "SourceHandler", "were"),
                    QCoreApplication.translate("SourceHandler", "its")
                    if len(new_values) == 1 else QCoreApplication.translate(
                        "SourceHandler", "their")), Qgis.Info, 0)
        if upload_errors:
            self.message_with_duration_emitted.emit(
                QCoreApplication.translate(
                    "SourceHandler",
                    "{} out of {} files could not be uploaded to the document repository because of upload errors! See log for details."
                ).format(upload_errors, total), Qgis.Info, 0)

        return new_values