def CreateRequest(search_string, batch_size, page):
# url = "http://doi.org/" + search_string
url = "https://api.crossref.org/works/" + search_string + "/transform/application/x-bibtex"
request = QNetworkRequest(QUrl(url))
request.setRawHeader(b"Accept", b"application/x-bibtex")
return request
def ask_login_status(self):
app_setting_file = os.path.join(BASE_DIR, "classini/app.ini")
app_settings = QSettings(app_setting_file, QSettings.IniFormat)
token = "Bearer " + app_settings.value("TOKEN/token")
print(token)
app = QApplication.instance()
network_manager = getattr(app, "_network")
url = SERVER + "token_login/"
request = QNetworkRequest(QUrl(url))
request.setRawHeader("Authorization".encode("utf-8"),
token.encode("utf-8"))
reply = network_manager.get(request)
reply.finished.connect(self.is_logged_reply)
def build_initial_request_list(self):
# The initial request is a custom job.
url = QUrl(self.camera_description.location)
request = QNetworkRequest(url)
request.setRawHeader(QByteArray(b"User-Agent"),
QByteArray(b"Panasonic Android/1 DM-CP"))
self.initial_requests.put(request)
r = self.build_request({
"mode": "accctrl",
"type": "req_acc",
"value": "4D454930-0100-1000-8000-D453835D5F48",
"value2": "LG-SP320"
})
self.initial_requests.put(r)
r = self.build_request({"mode": "getinfo", "type": "capability"})
self.initial_requests.put(r)
r = self.build_request({"mode": "getinfo", "type": "allmenu"})
self.initial_requests.put(r)
r = self.build_request({"mode": "getinfo", "type": "curmenu"})
self.initial_requests.put(r)
def prepareRequest(self):
request = QNetworkRequest()
request.setUrl(self.urlServer)
request.setRawHeader(QByteArray(b"content-type"),
QByteArray(b"application/json"))
request.setRawHeader(QByteArray(b"charset"), QByteArray(b"utf-8"))
if self.mpid != "open@":
tokenStr = self.usuario + ":" + str(int(
self.token[0])) + ":" + str(
self.token[1]) if self.token != [] else ""
tokenByte = QByteArray(tokenStr.encode())
tokenByteComplete = QByteArray(b"Session ") + tokenByte.toBase64()
request.setRawHeader(QByteArray(b"authorization"),
tokenByteComplete)
return request
class CameraController:
PING_RATE_MS = 1000
STATUS_MAP = {
"Battery": "./state/batt",
"Mode": "./state/cammode",
"Remaining Capacity": "./state/remaincapacity",
"Wifi Strength": "./state/wifiradio",
"Temperature": "./state/temperature"
}
def __init__(self, main_controller: "MainController",
camera_description: CamDesc, mdi_area: QtWidgets.QMdiArea):
self.main_controller = main_controller
self.camera_description = camera_description
self.address_str = camera_description.host.toString()
self.sub_window = sub_window = MdiSubWindowCloser()
sub_window.setWindowTitle(self.address_str)
sub_window.setAttribute(Qt.WA_DeleteOnClose)
sub_window.closed.connect(self.window_closed)
camera_control = CameraControl(parent=sub_window)
self.status = camera_control.status
for cmd in ZOOM_COMMANDS:
control = getattr(camera_control, cmd)
cmd_name = cmd.replace("_", "-")
control.pressed.connect(
partial(self.zoom_command_pressed, cmd_name))
control.released.connect(self.zoom_command_released)
sub_window.setWidget(camera_control)
mdi_area.addSubWindow(sub_window)
sub_window.show()
self.base_url = QUrl(f"http://{self.address_str}/cam.cgi")
self.base_request = QNetworkRequest()
self.base_request.setRawHeader(QByteArray(b"Connection"),
QByteArray(b"Keep-Alive"))
self.base_request.setRawHeader(QByteArray(b"User-Agent"),
QByteArray(b"Apache-HttpClient"))
self.status_query_request = self.build_request({"mode": "getstate"})
self.stop_zoom_request = self.build_request({
"mode": "camcmd",
"value": "zoomstop"
})
self.ping_timer = QTimer(self.sub_window)
self.ping_timer.timeout.connect(self.request_device_state)
self.initial_requests = Queue()
self.build_initial_request_list()
request = self.get_next_request()
self.query(request)
def query(self,
request: QNetworkRequest,
ping_count=0,
next_request=True,
close_on_fail=True):
reply = self.main_controller.network_access_manager.get(request)
reply.finished.connect(lambda: self.query_response(
reply, request, ping_count, next_request, close_on_fail))
def query_response(self, reply: QNetworkReply, original_request,
ping_count, next_request, close_on_fail):
if reply.error() != QNetworkReply.NoError:
print(f"Error query response: {reply.errorString()}")
if ping_count < 2:
print(f"Failed {ping_count+1} times. Trying again.")
self.query(original_request, ping_count + 1)
else:
print(f"Failed {ping_count} times. Giving up.")
if close_on_fail:
self.sub_window.close()
next_request = False
reply.deleteLater()
if not next_request:
return
request = self.get_next_request()
if request is not None:
self.query(request)
else:
self.ping_timer.start(CameraController.PING_RATE_MS)
def build_request(self, query_items):
query = QUrlQuery()
for k, v in query_items.items():
query.addQueryItem(k, v)
url = QUrl(self.base_url)
url.setQuery(query)
request = QNetworkRequest(self.base_request)
request.setUrl(url)
return request
def build_initial_request_list(self):
# The initial request is a custom job.
url = QUrl(self.camera_description.location)
request = QNetworkRequest(url)
request.setRawHeader(QByteArray(b"User-Agent"),
QByteArray(b"Panasonic Android/1 DM-CP"))
self.initial_requests.put(request)
r = self.build_request({
"mode": "accctrl",
"type": "req_acc",
"value": "4D454930-0100-1000-8000-D453835D5F48",
"value2": "LG-SP320"
})
self.initial_requests.put(r)
r = self.build_request({"mode": "getinfo", "type": "capability"})
self.initial_requests.put(r)
r = self.build_request({"mode": "getinfo", "type": "allmenu"})
self.initial_requests.put(r)
r = self.build_request({"mode": "getinfo", "type": "curmenu"})
self.initial_requests.put(r)
def get_next_request(self):
request = None
with contextlib.suppress(Empty):
request = self.initial_requests.get_nowait()
return request
def zoom_command_pressed(self, cmd):
print(f"Executing {cmd}")
r = self.build_request({"mode": "camcmd", "value": cmd})
self.query(r, next_request=False, close_on_fail=False)
def zoom_command_released(self):
print(f"Stopping Zoom")
self.query(self.stop_zoom_request,
next_request=False,
close_on_fail=False)
def window_closed(self):
print("Window closed")
self.main_controller.controller_closed(self.address_str)
def request_device_state(self):
reply = self.main_controller.network_access_manager.get(
self.status_query_request)
reply.finished.connect(
lambda: self.handle_device_state_response(reply))
def handle_device_state_response(self, reply: QNetworkReply):
if reply.error() != QNetworkReply.NoError:
print(f"Error device state response: {reply.errorString()}")
self.status.setText(reply.errorString())
else:
self.status.clear()
data = reply.readAll()
root = ET.fromstring(data)
result_list = []
for label, path in CameraController.STATUS_MAP.items():
r = root.findall(path)
result = "ERROR"
if len(r) > 0:
result = r[0].text
result_list.append(f"{label}: {result}")
self.status.setText("\n".join(result_list))
reply.deleteLater()
def open(
self,
address,
method='get',
headers={},
auth=None,
body=None,
default_popup_response=None,
wait=True,
timeout=None,
encode_url=True,
user_agent=None,
):
"""Opens a web page.
:param address: The resource URL.
:param method: The Http method.
:param headers: An optional dict of extra request headers.
:param auth: An optional tuple of HTTP auth (username, password).
:param body: An optional string containing a payload.
:param default_popup_response: the default response for any confirm/
alert/prompt popup from the Javascript (replaces the need for the with
blocks)
:param wait: If set to True (which is the default), this
method call waits for the page load to complete before
returning. Otherwise, it just starts the page load task and
it is the caller's responsibilty to wait for the load to
finish by other means (e.g. by calling wait_for_page_loaded()).
:param timeout: An optional timeout.
"key_path" both paths corresponding to the certificate and key files
:param encode_url Set to true if the url have to be encoded
:param user_agent An option user agent string.
:return: Page resource, and all loaded resources, unless wait
is False, in which case it returns None.
"""
self.logger.info('Opening %s', address)
body = body or QByteArray()
try:
method = getattr(QNetworkAccessManager,
"%sOperation" % method.capitalize())
except AttributeError:
raise Error("Invalid http method %s" % method)
if user_agent is not None:
self.page.set_user_agent(user_agent)
if encode_url:
request = QNetworkRequest(QUrl(address))
else:
request = QNetworkRequest(QUrl.fromEncoded(address))
request.CacheLoadControl(0)
for header in headers:
request.setRawHeader(header, headers[header])
self._auth = auth
self._auth_attempt = 0 # Avoids reccursion
self.main_frame.load(request, method, body)
self.loaded = False
if default_popup_response is not None:
self._prompt_expected = default_popup_response
self._confirm_expected = default_popup_response
if wait:
return self.wait_for_page_loaded(timeout=timeout)
class SlippyMap(QObject):
updated = Signal(QRect)
def __init__(self, parent=None):
"""
:param parent:
"""
super(SlippyMap, self).__init__(parent)
self._offset = QPoint()
self._tiles_rectangle = QRect()
self._tile_pixmaps = {} # Point(x, y) to QPixmap mapping
self._manager = QNetworkAccessManager()
self._url = QUrl()
# public vars
self.width = 400
self.height = 300
self.zoom = 4
self.latitude = 59.9138204
self.longitude = 10.7387413
self._emptyTile = QPixmap(TDIM, TDIM)
self._emptyTile.fill(Qt.lightGray)
self.request = QNetworkRequest()
self.cache = QNetworkDiskCache()
self.cache.setCacheDirectory(
QStandardPaths.writableLocation(QStandardPaths.CacheLocation))
self._manager.setCache(self.cache)
self._manager.finished.connect(self.handle_network_data)
def invalidate(self):
"""
:return:
"""
if self.width <= 0 or self.height <= 0:
return
ct = tile_for_coordinate(self.latitude, self.longitude, self.zoom)
tx = ct.x()
ty = ct.y()
# top-left corner of the center tile
xp = int(self.width / 2 - (tx - math.floor(tx)) * TDIM)
yp = int(self.height / 2 - (ty - math.floor(ty)) * TDIM)
# first tile vertical and horizontal
xa = (xp + TDIM - 1) / TDIM
ya = (yp + TDIM - 1) / TDIM
xs = int(tx) - xa
ys = int(ty) - ya
# offset for top-left tile
self._offset = QPoint(int(xp - xa * TDIM), int(yp - ya * TDIM))
# last tile vertical and horizontal
xe = int(tx) + (self.width - xp - 1) / TDIM
ye = int(ty) + (self.height - yp - 1) / TDIM
# build a rect
self._tiles_rectangle = QRect(int(xs), int(ys), int(xe - xs + 1),
int(ye - ys + 1))
if self._url.isEmpty():
self.download()
self.updated.emit(QRect(0, 0, self.width, self.height))
def render(self, p: QPainter, rect: QRect):
"""
Render a tile
:param p: QPainter instance, place where to pain the tiles
:param rect: QRect instance, dimensions of the painter (the window that renders the tiles)
:return: Nothing
"""
rx = range(self._tiles_rectangle.width())
ry = range(self._tiles_rectangle.height())
for x, y in product(rx, ry):
tp = Point(x + self._tiles_rectangle.left(),
y + self._tiles_rectangle.top())
box = self.tile_rectangle(tp)
if rect.intersects(box):
p.drawPixmap(box, self._tile_pixmaps.get(tp, self._emptyTile))
def pan(self, delta: QPoint):
"""
Move the map
:param delta: x, y delta as a QPoint instance
:return: Nothing
"""
dx = QPointF(delta) / float(TDIM)
center = tile_for_coordinate(self.latitude, self.longitude,
self.zoom) - dx
self.latitude = latitude_from_tile(center.y(), self.zoom)
self.longitude = longitude_from_tile(center.x(), self.zoom)
self.invalidate()
# slots
def handle_network_data(self, reply: QNetworkReply):
"""
This function is called automatically by a QNetworkAccessManager object (self._manager)
:param reply: QNetworkReply instance
:return: Nothing
"""
img = QImage()
tp = Point(reply.request().attribute(QNetworkRequest.User))
url = reply.url()
if not reply.error(): # if there was no url error...
if img.load(reply, None): # if the image loading went well...
self._tile_pixmaps[tp] = QPixmap.fromImage(
img) # store the image in the tiles dictionary
reply.deleteLater()
self.updated.emit(self.tile_rectangle(tp))
# purge unused tiles
bound = self._tiles_rectangle.adjusted(-2, -2, 2, 2)
for tp in list(self._tile_pixmaps.keys()):
if not bound.contains(tp):
del self._tile_pixmaps[tp]
self.download()
def download(self):
"""
Download tile
:return: Nothing
"""
grab = None
rx = range(self._tiles_rectangle.width())
ry = range(self._tiles_rectangle.height())
for x, y in product(rx, ry):
tp = Point(self._tiles_rectangle.topLeft() + QPoint(x, y))
if tp not in self._tile_pixmaps:
grab = QPoint(tp)
break
if grab is None:
self._url = QUrl()
return
path = 'http://tile.openstreetmap.org/%d/%d/%d.png' % (
self.zoom, grab.x(), grab.y())
self._url = QUrl(path)
self.request = QNetworkRequest()
self.request.setUrl(self._url)
self.request.setRawHeader(b'User-Agent',
b'Nokia (PyQt) Graphics Dojo 1.0')
self.request.setAttribute(QNetworkRequest.User, grab)
self._manager.get(self.request)
print('downloading z:', self.zoom, 'x:', grab.x(), 'y:', grab.y())
def tile_rectangle(self, tp: Point):
"""
Get tile rectangle
:param tp: Tile point
:return: QRect instance
"""
t = tp - self._tiles_rectangle.topLeft()
x = t.x() * TDIM + self._offset.x()
y = t.y() * TDIM + self._offset.y()
return QRect(x, y, TDIM, TDIM)
class SlippyMap(QObject):
updated = Signal(QRect)
def __init__(self, parent=None):
super(SlippyMap, self).__init__(parent)
self._offset = QPoint()
self._tilesRect = QRect()
self._tilePixmaps = {} # Point(x, y) to QPixmap mapping
self._manager = QNetworkAccessManager()
self._url = QUrl()
# public vars
self.width = 400
self.height = 300
self.zoom = 15
self.latitude = 59.9138204
self.longitude = 10.7387413
self._emptyTile = QPixmap(TDIM, TDIM)
self._emptyTile.fill(Qt.lightGray)
self.request = QNetworkRequest()
self.cache = QNetworkDiskCache()
self.cache.setCacheDirectory(
QStandardPaths.writableLocation(QStandardPaths.CacheLocation))
self._manager.setCache(self.cache)
self._manager.finished.connect(self.handleNetworkData)
def invalidate(self):
if self.width <= 0 or self.height <= 0:
return
ct = tileForCoordinate(self.latitude, self.longitude, self.zoom)
tx = ct.x()
ty = ct.y()
# top-left corner of the center tile
xp = int(self.width / 2 - (tx - math.floor(tx)) * TDIM)
yp = int(self.height / 2 - (ty - math.floor(ty)) * TDIM)
# first tile vertical and horizontal
xa = (xp + TDIM - 1) / TDIM
ya = (yp + TDIM - 1) / TDIM
xs = int(tx) - xa
ys = int(ty) - ya
# offset for top-left tile
self._offset = QPoint(xp - xa * TDIM, yp - ya * TDIM)
# last tile vertical and horizontal
xe = int(tx) + (self.width - xp - 1) / TDIM
ye = int(ty) + (self.height - yp - 1) / TDIM
# build a rect
self._tilesRect = QRect(xs, ys, xe - xs + 1, ye - ys + 1)
if self._url.isEmpty():
self.download()
self.updated.emit(QRect(0, 0, self.width, self.height))
def render(self, p, rect):
for x in range(self._tilesRect.width()):
for y in range(self._tilesRect.height()):
tp = Point(x + self._tilesRect.left(),
y + self._tilesRect.top())
box = self.tileRect(tp)
if rect.intersects(box):
p.drawPixmap(box,
self._tilePixmaps.get(tp, self._emptyTile))
def pan(self, delta):
dx = QPointF(delta) / float(TDIM)
center = tileForCoordinate(self.latitude, self.longitude,
self.zoom) - dx
self.latitude = latitudeFromTile(center.y(), self.zoom)
self.longitude = longitudeFromTile(center.x(), self.zoom)
self.invalidate()
# slots
def handleNetworkData(self, reply):
img = QImage()
tp = Point(reply.request().attribute(QNetworkRequest.User))
url = reply.url()
if not reply.error():
if img.load(reply, None):
self._tilePixmaps[tp] = QPixmap.fromImage(img)
reply.deleteLater()
self.updated.emit(self.tileRect(tp))
# purge unused tiles
bound = self._tilesRect.adjusted(-2, -2, 2, 2)
for tp in list(self._tilePixmaps.keys()):
if not bound.contains(tp):
del self._tilePixmaps[tp]
self.download()
def download(self):
grab = None
for x in range(self._tilesRect.width()):
for y in range(self._tilesRect.height()):
tp = Point(self._tilesRect.topLeft() + QPoint(x, y))
if tp not in self._tilePixmaps:
grab = QPoint(tp)
break
if grab is None:
self._url = QUrl()
return
path = 'http://tile.openstreetmap.org/%d/%d/%d.png' % (
self.zoom, grab.x(), grab.y())
self._url = QUrl(path)
self.request = QNetworkRequest()
self.request.setUrl(self._url)
self.request.setRawHeader(b'User-Agent',
b'Nokia (PyQt) Graphics Dojo 1.0')
self.request.setAttribute(QNetworkRequest.User, grab)
self._manager.get(self.request)
def tileRect(self, tp):
t = tp - self._tilesRect.topLeft()
x = t.x() * TDIM + self._offset.x()
y = t.y() * TDIM + self._offset.y()
return QRect(x, y, TDIM, TDIM)
