def __init__(self, parent=None):
super(WbNetworkAccessManager, self).__init__(parent)
self.sslErrors.connect(_WbNetworkAccessManager.onSslErrors)
self.finished.connect(_WbNetworkAccessManager.onReplyFinished)
# Enable offline cache
cache = QNetworkDiskCache(self)
cache.setCacheDirectory(
rc.DIR_CACHE_NETMAN
) # QNetworkDiskCache will create this directory if it does not exists.
self.setCache(cache)
# Load cookies
jar = WbNetworkCookieJar(rc.COOKIES_LOCATION)
self.setCookieJar(jar)
def __init__(
self, user_agent=default_user_agent, wait_timeout=8,
wait_callback=None, log_level=logging.WARNING, display=False,
viewport_size=(800, 600), ignore_ssl_errors=True,
cache_dir=os.path.join(tempfile.gettempdir(), "ghost.py"),
plugins_enabled=False, java_enabled=False,
plugin_path=['/usr/lib/mozilla/plugins', ],
download_images=True, qt_debug=False,
show_scroolbars=True,
xvfb_extra_args=None):
xvfb_extra_args = xvfb_extra_args or []
self.http_resources = []
self.user_agent = user_agent
self.wait_timeout = wait_timeout
self.wait_callback = wait_callback
self.ignore_ssl_errors = ignore_ssl_errors
self.loaded = True
if not sys.platform.startswith('win') and not 'DISPLAY' in os.environ\
and not hasattr(Ghost, 'xvfb'):
try:
os.environ['DISPLAY'] = ':99'
os.environ['PATH'] = '%s:%s' % ('/bin:/usr/bin', os.environ.get('PATH'))
xvfb_args = ['Xvfb', ':99']
xvfb_args.extend(xvfb_extra_args)
Ghost.xvfb = subprocess.Popen(xvfb_args)
time.sleep(0.5)
except OSError as e:
raise Error('Xvfb is required to a ghost run outside ' +
'an X instance. Error: %s. Args: %s. Path: %s' %
(unicode(e), xvfb_args, os.environ['PATH']))
self.display = display
if not Ghost._app:
Ghost._app = QApplication.instance() or QApplication(['ghost'])
qInstallMsgHandler(QTMessageProxy(qt_debug))
if plugin_path:
for p in plugin_path:
Ghost._app.addLibraryPath(p)
self.popup_messages = []
self.page = GhostWebPage(Ghost._app, self)
QtWebKit.QWebSettings.setMaximumPagesInCache(0)
QtWebKit.QWebSettings.setObjectCacheCapacities(0, 0, 0)
QtWebKit.QWebSettings.globalSettings().setAttribute(
QtWebKit.QWebSettings.LocalStorageEnabled, True)
self.page.setForwardUnsupportedContent(True)
self.page.settings().setAttribute(
QtWebKit.QWebSettings.AutoLoadImages, download_images)
self.page.settings().setAttribute(
QtWebKit.QWebSettings.PluginsEnabled, plugins_enabled)
self.page.settings().setAttribute(QtWebKit.QWebSettings.JavaEnabled,
java_enabled)
if not show_scroolbars:
self.page.mainFrame().setScrollBarPolicy(QtCore.Qt.Vertical,
QtCore.Qt.ScrollBarAlwaysOff)
self.page.mainFrame().setScrollBarPolicy(QtCore.Qt.Horizontal,
QtCore.Qt.ScrollBarAlwaysOff)
self.set_viewport_size(*viewport_size)
# Page signals
self.page.loadFinished.connect(self._page_loaded)
self.page.loadStarted.connect(self._page_load_started)
self.page.unsupportedContent.connect(self._unsupported_content)
self.manager = self.page.networkAccessManager()
self.manager.finished.connect(self._request_ended)
self.manager.sslErrors.connect(self._on_manager_ssl_errors)
# Cache
self.cache = QNetworkDiskCache()
self.cache.setCacheDirectory(cache_dir)
self.manager.setCache(self.cache)
# Cookie jar
self.cookie_jar = QNetworkCookieJar()
self.manager.setCookieJar(self.cookie_jar)
# User Agent
self.page.setUserAgent(self.user_agent)
self.page.networkAccessManager().authenticationRequired\
.connect(self._authenticate)
self.page.networkAccessManager().proxyAuthenticationRequired\
.connect(self._authenticate)
self.main_frame = self.page.mainFrame()
logger.setLevel(log_level)
if self.display:
class MyQWebView(QtWebKit.QWebView):
def sizeHint(self):
return QSize(*viewport_size)
self.webview = MyQWebView()
if plugins_enabled:
self.webview.settings().setAttribute(
QtWebKit.QWebSettings.PluginsEnabled, True)
if java_enabled:
self.webview.settings().setAttribute(
QtWebKit.QWebSettings.JavaEnabled, True)
self.webview.setPage(self.page)
self.webview.show()
else:
self.webview = None
class Ghost(object):
"""Ghost manages a QWebPage.
:param user_agent: The default User-Agent header.
:param wait_timeout: Maximum step duration in second.
:param wait_callback: An optional callable that is periodically
executed until Ghost stops waiting.
:param log_level: The optional logging level.
:param display: A boolean that tells ghost to displays UI.
:param viewport_size: A tuple that sets initial viewport size.
:param ignore_ssl_errors: A boolean that forces ignore ssl errors.
:param cache_dir: A directory path where to store cache datas.
:param plugins_enabled: Enable plugins (like Flash).
:param java_enabled: Enable Java JRE.
:param plugin_path: Array with paths to plugin directories
(default ['/usr/lib/mozilla/plugins'])
:param download_images: Indicate if the browser should download images
"""
_alert = None
_confirm_expected = None
_prompt_expected = None
_upload_file = None
_app = None
def __init__(
self, user_agent=default_user_agent, wait_timeout=8,
wait_callback=None, log_level=logging.WARNING, display=False,
viewport_size=(800, 600), ignore_ssl_errors=True,
cache_dir=os.path.join(tempfile.gettempdir(), "ghost.py"),
plugins_enabled=False, java_enabled=False,
plugin_path=['/usr/lib/mozilla/plugins', ],
download_images=True, qt_debug=False,
show_scroolbars=True,
xvfb_extra_args=None):
xvfb_extra_args = xvfb_extra_args or []
self.http_resources = []
self.user_agent = user_agent
self.wait_timeout = wait_timeout
self.wait_callback = wait_callback
self.ignore_ssl_errors = ignore_ssl_errors
self.loaded = True
if not sys.platform.startswith('win') and not 'DISPLAY' in os.environ\
and not hasattr(Ghost, 'xvfb'):
try:
os.environ['DISPLAY'] = ':99'
os.environ['PATH'] = '%s:%s' % ('/bin:/usr/bin', os.environ.get('PATH'))
xvfb_args = ['Xvfb', ':99']
xvfb_args.extend(xvfb_extra_args)
Ghost.xvfb = subprocess.Popen(xvfb_args)
time.sleep(0.5)
except OSError as e:
raise Error('Xvfb is required to a ghost run outside ' +
'an X instance. Error: %s. Args: %s. Path: %s' %
(unicode(e), xvfb_args, os.environ['PATH']))
self.display = display
if not Ghost._app:
Ghost._app = QApplication.instance() or QApplication(['ghost'])
qInstallMsgHandler(QTMessageProxy(qt_debug))
if plugin_path:
for p in plugin_path:
Ghost._app.addLibraryPath(p)
self.popup_messages = []
self.page = GhostWebPage(Ghost._app, self)
QtWebKit.QWebSettings.setMaximumPagesInCache(0)
QtWebKit.QWebSettings.setObjectCacheCapacities(0, 0, 0)
QtWebKit.QWebSettings.globalSettings().setAttribute(
QtWebKit.QWebSettings.LocalStorageEnabled, True)
self.page.setForwardUnsupportedContent(True)
self.page.settings().setAttribute(
QtWebKit.QWebSettings.AutoLoadImages, download_images)
self.page.settings().setAttribute(
QtWebKit.QWebSettings.PluginsEnabled, plugins_enabled)
self.page.settings().setAttribute(QtWebKit.QWebSettings.JavaEnabled,
java_enabled)
if not show_scroolbars:
self.page.mainFrame().setScrollBarPolicy(QtCore.Qt.Vertical,
QtCore.Qt.ScrollBarAlwaysOff)
self.page.mainFrame().setScrollBarPolicy(QtCore.Qt.Horizontal,
QtCore.Qt.ScrollBarAlwaysOff)
self.set_viewport_size(*viewport_size)
# Page signals
self.page.loadFinished.connect(self._page_loaded)
self.page.loadStarted.connect(self._page_load_started)
self.page.unsupportedContent.connect(self._unsupported_content)
self.manager = self.page.networkAccessManager()
self.manager.finished.connect(self._request_ended)
self.manager.sslErrors.connect(self._on_manager_ssl_errors)
# Cache
self.cache = QNetworkDiskCache()
self.cache.setCacheDirectory(cache_dir)
self.manager.setCache(self.cache)
# Cookie jar
self.cookie_jar = QNetworkCookieJar()
self.manager.setCookieJar(self.cookie_jar)
# User Agent
self.page.setUserAgent(self.user_agent)
self.page.networkAccessManager().authenticationRequired\
.connect(self._authenticate)
self.page.networkAccessManager().proxyAuthenticationRequired\
.connect(self._authenticate)
self.main_frame = self.page.mainFrame()
logger.setLevel(log_level)
if self.display:
class MyQWebView(QtWebKit.QWebView):
def sizeHint(self):
return QSize(*viewport_size)
self.webview = MyQWebView()
if plugins_enabled:
self.webview.settings().setAttribute(
QtWebKit.QWebSettings.PluginsEnabled, True)
if java_enabled:
self.webview.settings().setAttribute(
QtWebKit.QWebSettings.JavaEnabled, True)
self.webview.setPage(self.page)
self.webview.show()
else:
self.webview = None
def __del__(self):
self.exit()
def capture(self, region=None, selector=None,
format=QImage.Format_ARGB32_Premultiplied):
"""Returns snapshot as QImage.
:param region: An optional tuple containing region as pixel
coodinates.
:param selector: A selector targeted the element to crop on.
:param format: The output image format.
"""
if region is None and selector is not None:
region = self.region_for_selector(selector)
if region:
x1, y1, x2, y2 = region
w, h = (x2 - x1), (y2 - y1)
image = QImage(QSize(x2, y2), format)
painter = QPainter(image)
self.main_frame.render(painter)
painter.end()
image = image.copy(x1, y1, w, h)
else:
self.main_frame.setScrollBarPolicy(QtCore.Qt.Vertical,
QtCore.Qt.ScrollBarAlwaysOff)
self.main_frame.setScrollBarPolicy(QtCore.Qt.Horizontal,
QtCore.Qt.ScrollBarAlwaysOff)
self.page.setViewportSize(self.main_frame.contentsSize())
image = QImage(self.page.viewportSize(), format)
painter = QPainter(image)
self.main_frame.render(painter)
painter.end()
return image
def capture_to(self, path, region=None, selector=None,
format=QImage.Format_ARGB32_Premultiplied):
"""Saves snapshot as image.
:param path: The destination path.
:param region: An optional tuple containing region as pixel
coodinates.
:param selector: A selector targeted the element to crop on.
:param format: The output image format.
"""
self.capture(region=region, format=format,
selector=selector).save(path)
def print_to_pdf(self, path, paper_size=(8.5, 11.0),
paper_margins=(0, 0, 0, 0), paper_units=QPrinter.Inch,
zoom_factor=1.0):
"""Saves page as a pdf file.
See qt4 QPrinter documentation for more detailed explanations
of options.
:param path: The destination path.
:param paper_size: A 2-tuple indicating size of page to print to.
:param paper_margins: A 4-tuple indicating size of each margin.
:param paper_units: Units for pager_size, pager_margins.
:param zoom_factor: Scale the output content.
"""
assert len(paper_size) == 2
assert len(paper_margins) == 4
printer = QPrinter(mode=QPrinter.ScreenResolution)
printer.setOutputFormat(QPrinter.PdfFormat)
printer.setPaperSize(QtCore.QSizeF(*paper_size), paper_units)
printer.setPageMargins(*(paper_margins + (paper_units,)))
printer.setFullPage(True)
printer.setOutputFileName(path)
if self.webview is None:
self.webview = QtWebKit.QWebView()
self.webview.setPage(self.page)
self.webview.setZoomFactor(zoom_factor)
self.webview.print_(printer)
@can_load_page
def click(self, selector):
"""Click the targeted element.
:param selector: A CSS3 selector to targeted element.
"""
if not self.exists(selector):
raise Error("Can't find element to click")
return self.evaluate("""
var element = document.querySelector("%s");
var evt = document.createEvent("MouseEvents");
evt.initMouseEvent("click", true, true, window, 1, 1, 1, 1, 1,
false, false, false, false, 0, element);
element.dispatchEvent(evt)
""" % selector)
class confirm:
"""Statement that tells Ghost how to deal with javascript confirm().
:param confirm: A boolean to set confirmation.
:param callable: A callable that returns a boolean for confirmation.
"""
def __init__(self, confirm=True, callback=None):
self.confirm = confirm
self.callback = callback
def __enter__(self):
Ghost._confirm_expected = (self.confirm, self.callback)
def __exit__(self, type, value, traceback):
Ghost._confirm_expected = None
@property
def content(self, to_unicode=True):
"""Returns current frame HTML as a string.
:param to_unicode: Whether to convert html to unicode or not
"""
if to_unicode:
return unicode(self.main_frame.toHtml())
else:
return self.main_frame.toHtml()
@property
def cookies(self):
"""Returns all cookies."""
return self.cookie_jar.allCookies()
def delete_cookies(self):
"""Deletes all cookies."""
self.cookie_jar.setAllCookies([])
def clear_alert_message(self):
"""Clears the alert message"""
self._alert = None
@can_load_page
def evaluate(self, script):
"""Evaluates script in page frame.
:param script: The script to evaluate.
"""
return (self.main_frame.evaluateJavaScript("%s" % script),
self._release_last_resources())
def evaluate_js_file(self, path, encoding='utf-8', **kwargs):
"""Evaluates javascript file at given path in current frame.
Raises native IOException in case of invalid file.
:param path: The path of the file.
:param encoding: The file's encoding.
"""
with codecs.open(path, encoding=encoding) as f:
return self.evaluate(f.read(), **kwargs)
def exists(self, selector):
"""Checks if element exists for given selector.
:param string: The element selector.
"""
return not self.main_frame.findFirstElement(selector).isNull()
def exit(self):
"""Exits application and related."""
if self.display:
self.webview.close()
Ghost._app.quit()
del self.manager
del self.page
del self.main_frame
if hasattr(self, 'xvfb'):
self.xvfb.terminate()
@can_load_page
def fill(self, selector, values):
"""Fills a form with provided values.
:param selector: A CSS selector to the target form to fill.
:param values: A dict containing the values.
"""
if not self.exists(selector):
raise Error("Can't find form")
resources = []
for field in values:
r, res = self.set_field_value("%s [name=%s]" % (selector, field),
values[field])
resources.extend(res)
return True, resources
@can_load_page
def fire_on(self, selector, method):
"""Call method on element matching given selector.
:param selector: A CSS selector to the target element.
:param method: The name of the method to fire.
:param expect_loading: Specifies if a page loading is expected.
"""
return self.evaluate('document.querySelector("%s").%s();' % \
(selector, method))
def global_exists(self, global_name):
"""Checks if javascript global exists.
:param global_name: The name of the global.
"""
return self.evaluate('!(typeof %s === "undefined");' %
global_name)[0]
def hide(self):
"""Close the webview."""
try:
self.webview.close()
except:
raise Error("no webview to close")
def load_cookies(self, cookie_storage, keep_old=False):
"""load from cookielib's CookieJar or Set-Cookie3 format text file.
:param cookie_storage: file location string on disk or CookieJar
instance.
:param keep_old: Don't reset, keep cookies not overridden.
"""
def toQtCookieJar(PyCookieJar, QtCookieJar):
allCookies = QtCookieJar.cookies if keep_old else []
for pc in PyCookieJar:
qc = toQtCookie(pc)
allCookies.append(qc)
QtCookieJar.setAllCookies(allCookies)
def toQtCookie(PyCookie):
qc = QNetworkCookie(PyCookie.name, PyCookie.value)
qc.setSecure(PyCookie.secure)
if PyCookie.path_specified:
qc.setPath(PyCookie.path)
if PyCookie.domain != "":
qc.setDomain(PyCookie.domain)
if PyCookie.expires != 0:
t = QDateTime()
t.setTime_t(PyCookie.expires)
qc.setExpirationDate(t)
# not yet handled(maybe less useful):
# py cookie.rest / QNetworkCookie.setHttpOnly()
return qc
if cookie_storage.__class__.__name__ == 'str':
cj = LWPCookieJar(cookie_storage)
cj.load()
toQtCookieJar(cj, self.cookie_jar)
elif cookie_storage.__class__.__name__.endswith('CookieJar'):
toQtCookieJar(cookie_storage, self.cookie_jar)
else:
raise ValueError('unsupported cookie_storage type.')
def open(self, address, method='get', headers={}, auth=None, body=None,
default_popup_response=None):
"""Opens a web page.
:param address: The resource URL.
:param method: The Http method.
:param headers: An optional dict of extra request hearders.
: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)
:return: Page resource, All loaded resources.
"""
body = body or QByteArray()
try:
method = getattr(QNetworkAccessManager,
"%sOperation" % method.capitalize())
except AttributeError:
raise Error("Invalid http method %s" % method)
request = QNetworkRequest(QUrl(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:
Ghost._prompt_expected = (default_popup_response, None)
Ghost._confirm_expected = (default_popup_response, None)
return self.wait_for_page_loaded()
class prompt:
"""Statement that tells Ghost how to deal with javascript prompt().
:param value: A string value to fill in prompt.
:param callback: A callable that returns the value to fill in.
"""
def __init__(self, value='', callback=None):
self.value = value
self.callback = callback
def __enter__(self):
Ghost._prompt_expected = (self.value, self.callback)
def __exit__(self, type, value, traceback):
Ghost._prompt_expected = None
def region_for_selector(self, selector):
"""Returns frame region for given selector as tuple.
:param selector: The targeted element.
"""
geo = self.main_frame.findFirstElement(selector).geometry()
try:
region = (geo.left(), geo.top(), geo.right(), geo.bottom())
except:
raise Error("can't get region for selector '%s'" % selector)
return region
def save_cookies(self, cookie_storage):
"""Save to cookielib's CookieJar or Set-Cookie3 format text file.
:param cookie_storage: file location string or CookieJar instance.
"""
def toPyCookieJar(QtCookieJar, PyCookieJar):
for c in QtCookieJar.allCookies():
PyCookieJar.set_cookie(toPyCookie(c))
def toPyCookie(QtCookie):
port = None
port_specified = False
secure = QtCookie.isSecure()
name = str(QtCookie.name())
value = str(QtCookie.value())
v = str(QtCookie.path())
path_specified = bool(v != "")
path = v if path_specified else None
v = str(QtCookie.domain())
domain_specified = bool(v != "")
domain = v
if domain_specified:
domain_initial_dot = v.startswith('.')
else:
domain_initial_dot = None
v = long(QtCookie.expirationDate().toTime_t())
# Long type boundary on 32bit platfroms; avoid ValueError
expires = 2147483647 if v > 2147483647 else v
rest = {}
discard = False
return Cookie(0, name, value, port, port_specified, domain,
domain_specified, domain_initial_dot, path, path_specified,
secure, expires, discard, None, None, rest)
if cookie_storage.__class__.__name__ == 'str':
cj = LWPCookieJar(cookie_storage)
toPyCookieJar(self.cookie_jar, cj)
cj.save()
elif cookie_storage.__class__.__name__.endswith('CookieJar'):
toPyCookieJar(self.cookie_jar, cookie_storage)
else:
raise ValueError('unsupported cookie_storage type.')
@can_load_page
def set_field_value(self, selector, value, blur=True):
"""Sets the value of the field matched by given selector.
:param selector: A CSS selector that target the field.
:param value: The value to fill in.
:param blur: An optional boolean that force blur when filled in.
"""
def _set_checkbox_value(el, value):
el.setFocus()
if value is True:
el.setAttribute('checked', 'checked')
else:
el.removeAttribute('checked')
def _set_checkboxes_value(els, value):
for el in els:
if el.attribute('value') == value:
_set_checkbox_value(el, True)
else:
_set_checkbox_value(el, False)
def _set_radio_value(els, value):
for el in els:
if el.attribute('value') == value:
el.setFocus()
el.setAttribute('checked', 'checked')
def _set_text_value(el, value):
el.setFocus()
el.setAttribute('value', value)
def _set_select_value(el, value):
el.setFocus()
self.evaluate('document.querySelector("%s").value = "%s";' %
(selector.replace('"', '\"'), value.replace('"', '\"')))
def _set_textarea_value(el, value):
el.setFocus()
el.setPlainText(value)
res, ressources = None, []
element = self.main_frame.findFirstElement(selector)
if element.isNull():
raise Error('can\'t find element for %s"' % selector)
if element.tagName() == "SELECT":
_set_select_value(element, value)
elif element.tagName() == "TEXTAREA":
_set_textarea_value(element, value)
elif element.tagName() == "INPUT":
if element.attribute('type').lower() in ["color", "date", "datetime",
"datetime-local", "email", "hidden", "month", "number",
"password", "range", "search", "tel", "text", "time",
"url", "week"]:
_set_text_value(element, value)
elif element.attribute('type') == "checkbox":
els = self.main_frame.findAllElements(selector)
if els.count() > 1:
_set_checkboxes_value(els, value)
else:
_set_checkbox_value(element, value)
elif element.attribute('type') == "radio":
_set_radio_value(self.main_frame.findAllElements(selector),
value)
elif element.attribute('type') == "file":
Ghost._upload_file = value
res, resources = self.click(selector)
Ghost._upload_file = None
else:
raise Error('unsuported field tag')
if blur:
self.fire_on(selector, 'blur')
return res, ressources
def set_proxy(self, type_, host='localhost', port=8888, user='',
password=''):
"""Set up proxy for FURTHER connections.
:param type_: proxy type to use: \
none/default/socks5/https/http.
:param host: proxy server ip or host name.
:param port: proxy port.
"""
_types = {
'default': QNetworkProxy.DefaultProxy,
'none': QNetworkProxy.NoProxy,
'socks5': QNetworkProxy.Socks5Proxy,
'https': QNetworkProxy.HttpProxy,
'http': QNetworkProxy.HttpCachingProxy
}
if type_ is None:
type_ = 'none'
type_ = type_.lower()
if type_ in ['none', 'default']:
self.manager.setProxy(QNetworkProxy(_types[type_]))
return
elif type_ in _types:
proxy = QNetworkProxy(_types[type_], hostName=host, port=port,
user=user, password=password)
self.manager.setProxy(proxy)
else:
raise ValueError('Unsupported proxy type:' + type_ \
+ '\nsupported types are: none/socks5/http/https/default')
def set_viewport_size(self, width, height):
"""Sets the page viewport size.
:param width: An integer that sets width pixel count.
:param height: An integer that sets height pixel count.
"""
self.page.setViewportSize(QSize(width, height))
def append_popup_message(self, message):
self.popup_messages.append(unicode(message))
def show(self):
"""Show current page inside a QWebView.
"""
self.webview = QtWebKit.QWebView()
self.webview.setPage(self.page)
self.webview.show()
def sleep(self, value):
started_at = time.time()
while True:
if time.time() > (started_at + value):
break
time.sleep(0.01)
Ghost._app.processEvents()
def wait_for(self, condition, timeout_message):
"""Waits until condition is True.
:param condition: A callable that returns the condition.
:param timeout_message: The exception message on timeout.
"""
started_at = time.time()
while not condition():
if time.time() > (started_at + self.wait_timeout):
raise TimeoutError(timeout_message)
time.sleep(0.01)
Ghost._app.processEvents()
if self.wait_callback is not None:
self.wait_callback()
def wait_for_alert(self):
"""Waits for main frame alert().
"""
self.wait_for(lambda: Ghost._alert is not None,
'User has not been alerted.')
msg = Ghost._alert
Ghost._alert = None
return msg, self._release_last_resources()
def wait_for_page_loaded(self):
"""Waits until page is loaded, assumed that a page as been requested.
"""
self.wait_for(lambda: self.loaded,
'Unable to load requested page')
resources = self._release_last_resources()
page = None
url = self.main_frame.url().toString()
url_without_hash = url.split("#")[0]
for resource in resources:
if url == resource.url or url_without_hash == resource.url:
page = resource
return page, resources
def wait_for_selector(self, selector):
"""Waits until selector match an element on the frame.
:param selector: The selector to wait for.
"""
self.wait_for(lambda: self.exists(selector),
'Can\'t find element matching "%s"' % selector)
return True, self._release_last_resources()
def wait_while_selector(self, selector):
"""Waits until the selector no longer matches an element on the frame.
:param selector: The selector to wait for.
"""
self.wait_for(lambda: not self.exists(selector),
'Element matching "%s" is still available' % selector)
return True, self._release_last_resources()
def wait_for_text(self, text):
"""Waits until given text appear on main frame.
:param text: The text to wait for.
"""
self.wait_for(lambda: text in self.content,
'Can\'t find "%s" in current frame' % text)
return True, self._release_last_resources()
def _authenticate(self, mix, authenticator):
"""Called back on basic / proxy http auth.
:param mix: The QNetworkReply or QNetworkProxy object.
:param authenticator: The QAuthenticator object.
"""
if self._auth_attempt == 0:
username, password = self._auth
authenticator.setUser(username)
authenticator.setPassword(password)
self._auth_attempt += 1
def _page_loaded(self):
"""Called back when page is loaded.
"""
self.loaded = True
self.cache.clear()
def _page_load_started(self):
"""Called back when page load started.
"""
self.loaded = False
def _release_last_resources(self):
"""Releases last loaded resources.
:return: The released resources.
"""
last_resources = self.http_resources
self.http_resources = []
return last_resources
def _request_ended(self, reply):
"""Adds an HttpResource object to http_resources.
:param reply: The QNetworkReply object.
"""
if reply.attribute(QNetworkRequest.HttpStatusCodeAttribute):
Logger.log("[%s] bytesAvailable()= %s" % (str(reply.url()),
reply.bytesAvailable()), level="debug")
# Some web pages return cache headers that mandates not to cache
# the reply, which means we won't find this QNetworkReply in
# the cache object. In this case bytesAvailable will return > 0.
# Such pages are www.etsy.com
# This is a bit of a hack and due to the async nature of QT, might
# not work at times. We should move to using some proxied
# implementation of QNetworkManager and QNetworkReply in order to
# get the contents of the requests properly rather than relying
# on the cache.
if reply.bytesAvailable() > 0:
content = reply.peek(reply.bytesAvailable())
else:
content = None
self.http_resources.append(HttpResource(reply, self.cache,
content=content))
def _unsupported_content(self, reply):
"""Adds an HttpResource object to http_resources with unsupported
content.
:param reply: The QNetworkReply object.
"""
self.wait_for(lambda: reply.isFinished(), 'Download timeout.')
if reply.attribute(QNetworkRequest.HttpStatusCodeAttribute):
self.http_resources.append(HttpResource(reply, self.cache,
reply.readAll()))
def _on_manager_ssl_errors(self, reply, errors):
url = unicode(reply.url().toString())
if self.ignore_ssl_errors:
reply.ignoreSslErrors()
else:
Logger.log('SSL certificate error: %s' % url, level='warning')
def __init__(self,
user_agent=default_user_agent,
wait_timeout=8,
wait_callback=None,
log_level=logging.WARNING,
display=False,
viewport_size=(800, 600),
ignore_ssl_errors=True,
cache_dir=os.path.join(tempfile.gettempdir(), "ghost.py"),
plugins_enabled=False,
java_enabled=False,
plugin_path=[
'/usr/lib/mozilla/plugins',
],
download_images=True,
qt_debug=False,
show_scroolbars=True,
xvfb_extra_args=None):
xvfb_extra_args = xvfb_extra_args or []
self.http_resources = []
self.user_agent = user_agent
self.wait_timeout = wait_timeout
self.wait_callback = wait_callback
self.ignore_ssl_errors = ignore_ssl_errors
self.loaded = True
if not sys.platform.startswith('win') and not 'DISPLAY' in os.environ\
and not hasattr(Ghost, 'xvfb'):
try:
os.environ['DISPLAY'] = ':99'
os.environ['PATH'] = '%s:%s' % ('/bin:/usr/bin',
os.environ.get('PATH'))
xvfb_args = ['Xvfb', ':99']
xvfb_args.extend(xvfb_extra_args)
Ghost.xvfb = subprocess.Popen(xvfb_args)
time.sleep(0.5)
except OSError as e:
raise Error('Xvfb is required to a ghost run outside ' +
'an X instance. Error: %s. Args: %s. Path: %s' %
(unicode(e), xvfb_args, os.environ['PATH']))
self.display = display
if not Ghost._app:
Ghost._app = QApplication.instance() or QApplication(['ghost'])
qInstallMsgHandler(QTMessageProxy(qt_debug))
if plugin_path:
for p in plugin_path:
Ghost._app.addLibraryPath(p)
self.popup_messages = []
self.page = GhostWebPage(Ghost._app, self)
QtWebKit.QWebSettings.setMaximumPagesInCache(0)
QtWebKit.QWebSettings.setObjectCacheCapacities(0, 0, 0)
QtWebKit.QWebSettings.globalSettings().setAttribute(
QtWebKit.QWebSettings.LocalStorageEnabled, True)
self.page.setForwardUnsupportedContent(True)
self.page.settings().setAttribute(QtWebKit.QWebSettings.AutoLoadImages,
download_images)
self.page.settings().setAttribute(QtWebKit.QWebSettings.PluginsEnabled,
plugins_enabled)
self.page.settings().setAttribute(QtWebKit.QWebSettings.JavaEnabled,
java_enabled)
if not show_scroolbars:
self.page.mainFrame().setScrollBarPolicy(
QtCore.Qt.Vertical, QtCore.Qt.ScrollBarAlwaysOff)
self.page.mainFrame().setScrollBarPolicy(
QtCore.Qt.Horizontal, QtCore.Qt.ScrollBarAlwaysOff)
self.set_viewport_size(*viewport_size)
# Page signals
self.page.loadFinished.connect(self._page_loaded)
self.page.loadStarted.connect(self._page_load_started)
self.page.unsupportedContent.connect(self._unsupported_content)
self.manager = self.page.networkAccessManager()
self.manager.finished.connect(self._request_ended)
self.manager.sslErrors.connect(self._on_manager_ssl_errors)
# Cache
self.cache = QNetworkDiskCache()
self.cache.setCacheDirectory(cache_dir)
self.manager.setCache(self.cache)
# Cookie jar
self.cookie_jar = QNetworkCookieJar()
self.manager.setCookieJar(self.cookie_jar)
# User Agent
self.page.setUserAgent(self.user_agent)
self.page.networkAccessManager().authenticationRequired\
.connect(self._authenticate)
self.page.networkAccessManager().proxyAuthenticationRequired\
.connect(self._authenticate)
self.main_frame = self.page.mainFrame()
logger.setLevel(log_level)
if self.display:
class MyQWebView(QtWebKit.QWebView):
def sizeHint(self):
return QSize(*viewport_size)
self.webview = MyQWebView()
if plugins_enabled:
self.webview.settings().setAttribute(
QtWebKit.QWebSettings.PluginsEnabled, True)
if java_enabled:
self.webview.settings().setAttribute(
QtWebKit.QWebSettings.JavaEnabled, True)
self.webview.setPage(self.page)
self.webview.show()
else:
self.webview = None
class Ghost(object):
"""Ghost manages a QWebPage.
:param user_agent: The default User-Agent header.
:param wait_timeout: Maximum step duration in second.
:param wait_callback: An optional callable that is periodically
executed until Ghost stops waiting.
:param log_level: The optional logging level.
:param display: A boolean that tells ghost to displays UI.
:param viewport_size: A tuple that sets initial viewport size.
:param ignore_ssl_errors: A boolean that forces ignore ssl errors.
:param cache_dir: A directory path where to store cache datas.
:param plugins_enabled: Enable plugins (like Flash).
:param java_enabled: Enable Java JRE.
:param plugin_path: Array with paths to plugin directories
(default ['/usr/lib/mozilla/plugins'])
:param download_images: Indicate if the browser should download images
"""
_alert = None
_confirm_expected = None
_prompt_expected = None
_upload_file = None
_app = None
def __init__(self,
user_agent=default_user_agent,
wait_timeout=8,
wait_callback=None,
log_level=logging.WARNING,
display=False,
viewport_size=(800, 600),
ignore_ssl_errors=True,
cache_dir=os.path.join(tempfile.gettempdir(), "ghost.py"),
plugins_enabled=False,
java_enabled=False,
plugin_path=[
'/usr/lib/mozilla/plugins',
],
download_images=True,
qt_debug=False,
show_scroolbars=True,
xvfb_extra_args=None):
xvfb_extra_args = xvfb_extra_args or []
self.http_resources = []
self.user_agent = user_agent
self.wait_timeout = wait_timeout
self.wait_callback = wait_callback
self.ignore_ssl_errors = ignore_ssl_errors
self.loaded = True
if not sys.platform.startswith('win') and not 'DISPLAY' in os.environ\
and not hasattr(Ghost, 'xvfb'):
try:
os.environ['DISPLAY'] = ':99'
os.environ['PATH'] = '%s:%s' % ('/bin:/usr/bin',
os.environ.get('PATH'))
xvfb_args = ['Xvfb', ':99']
xvfb_args.extend(xvfb_extra_args)
Ghost.xvfb = subprocess.Popen(xvfb_args)
time.sleep(0.5)
except OSError as e:
raise Error('Xvfb is required to a ghost run outside ' +
'an X instance. Error: %s. Args: %s. Path: %s' %
(unicode(e), xvfb_args, os.environ['PATH']))
self.display = display
if not Ghost._app:
Ghost._app = QApplication.instance() or QApplication(['ghost'])
qInstallMsgHandler(QTMessageProxy(qt_debug))
if plugin_path:
for p in plugin_path:
Ghost._app.addLibraryPath(p)
self.popup_messages = []
self.page = GhostWebPage(Ghost._app, self)
QtWebKit.QWebSettings.setMaximumPagesInCache(0)
QtWebKit.QWebSettings.setObjectCacheCapacities(0, 0, 0)
QtWebKit.QWebSettings.globalSettings().setAttribute(
QtWebKit.QWebSettings.LocalStorageEnabled, True)
self.page.setForwardUnsupportedContent(True)
self.page.settings().setAttribute(QtWebKit.QWebSettings.AutoLoadImages,
download_images)
self.page.settings().setAttribute(QtWebKit.QWebSettings.PluginsEnabled,
plugins_enabled)
self.page.settings().setAttribute(QtWebKit.QWebSettings.JavaEnabled,
java_enabled)
if not show_scroolbars:
self.page.mainFrame().setScrollBarPolicy(
QtCore.Qt.Vertical, QtCore.Qt.ScrollBarAlwaysOff)
self.page.mainFrame().setScrollBarPolicy(
QtCore.Qt.Horizontal, QtCore.Qt.ScrollBarAlwaysOff)
self.set_viewport_size(*viewport_size)
# Page signals
self.page.loadFinished.connect(self._page_loaded)
self.page.loadStarted.connect(self._page_load_started)
self.page.unsupportedContent.connect(self._unsupported_content)
self.manager = self.page.networkAccessManager()
self.manager.finished.connect(self._request_ended)
self.manager.sslErrors.connect(self._on_manager_ssl_errors)
# Cache
self.cache = QNetworkDiskCache()
self.cache.setCacheDirectory(cache_dir)
self.manager.setCache(self.cache)
# Cookie jar
self.cookie_jar = QNetworkCookieJar()
self.manager.setCookieJar(self.cookie_jar)
# User Agent
self.page.setUserAgent(self.user_agent)
self.page.networkAccessManager().authenticationRequired\
.connect(self._authenticate)
self.page.networkAccessManager().proxyAuthenticationRequired\
.connect(self._authenticate)
self.main_frame = self.page.mainFrame()
logger.setLevel(log_level)
if self.display:
class MyQWebView(QtWebKit.QWebView):
def sizeHint(self):
return QSize(*viewport_size)
self.webview = MyQWebView()
if plugins_enabled:
self.webview.settings().setAttribute(
QtWebKit.QWebSettings.PluginsEnabled, True)
if java_enabled:
self.webview.settings().setAttribute(
QtWebKit.QWebSettings.JavaEnabled, True)
self.webview.setPage(self.page)
self.webview.show()
else:
self.webview = None
def __del__(self):
self.exit()
def capture(self,
region=None,
selector=None,
format=QImage.Format_ARGB32_Premultiplied):
"""Returns snapshot as QImage.
:param region: An optional tuple containing region as pixel
coodinates.
:param selector: A selector targeted the element to crop on.
:param format: The output image format.
"""
if region is None and selector is not None:
region = self.region_for_selector(selector)
if region:
x1, y1, x2, y2 = region
w, h = (x2 - x1), (y2 - y1)
image = QImage(QSize(x2, y2), format)
painter = QPainter(image)
self.main_frame.render(painter)
painter.end()
image = image.copy(x1, y1, w, h)
else:
self.main_frame.setScrollBarPolicy(QtCore.Qt.Vertical,
QtCore.Qt.ScrollBarAlwaysOff)
self.main_frame.setScrollBarPolicy(QtCore.Qt.Horizontal,
QtCore.Qt.ScrollBarAlwaysOff)
self.page.setViewportSize(self.main_frame.contentsSize())
image = QImage(self.page.viewportSize(), format)
painter = QPainter(image)
self.main_frame.render(painter)
painter.end()
return image
def capture_to(self,
path,
region=None,
selector=None,
format=QImage.Format_ARGB32_Premultiplied):
"""Saves snapshot as image.
:param path: The destination path.
:param region: An optional tuple containing region as pixel
coodinates.
:param selector: A selector targeted the element to crop on.
:param format: The output image format.
"""
self.capture(region=region, format=format,
selector=selector).save(path)
def print_to_pdf(self,
path,
paper_size=(8.5, 11.0),
paper_margins=(0, 0, 0, 0),
paper_units=QPrinter.Inch,
zoom_factor=1.0):
"""Saves page as a pdf file.
See qt4 QPrinter documentation for more detailed explanations
of options.
:param path: The destination path.
:param paper_size: A 2-tuple indicating size of page to print to.
:param paper_margins: A 4-tuple indicating size of each margin.
:param paper_units: Units for pager_size, pager_margins.
:param zoom_factor: Scale the output content.
"""
assert len(paper_size) == 2
assert len(paper_margins) == 4
printer = QPrinter(mode=QPrinter.ScreenResolution)
printer.setOutputFormat(QPrinter.PdfFormat)
printer.setPaperSize(QtCore.QSizeF(*paper_size), paper_units)
printer.setPageMargins(*(paper_margins + (paper_units, )))
printer.setFullPage(True)
printer.setOutputFileName(path)
if self.webview is None:
self.webview = QtWebKit.QWebView()
self.webview.setPage(self.page)
self.webview.setZoomFactor(zoom_factor)
self.webview.print_(printer)
@can_load_page
def click(self, selector):
"""Click the targeted element.
:param selector: A CSS3 selector to targeted element.
"""
if not self.exists(selector):
raise Error("Can't find element to click")
return self.evaluate("""
var element = document.querySelector("%s");
var evt = document.createEvent("MouseEvents");
evt.initMouseEvent("click", true, true, window, 1, 1, 1, 1, 1,
false, false, false, false, 0, element);
element.dispatchEvent(evt)
""" % selector)
class confirm:
"""Statement that tells Ghost how to deal with javascript confirm().
:param confirm: A boolean to set confirmation.
:param callable: A callable that returns a boolean for confirmation.
"""
def __init__(self, confirm=True, callback=None):
self.confirm = confirm
self.callback = callback
def __enter__(self):
Ghost._confirm_expected = (self.confirm, self.callback)
def __exit__(self, type, value, traceback):
Ghost._confirm_expected = None
@property
def content(self, to_unicode=True):
"""Returns current frame HTML as a string.
:param to_unicode: Whether to convert html to unicode or not
"""
if to_unicode:
return unicode(self.main_frame.toHtml())
else:
return self.main_frame.toHtml()
@property
def cookies(self):
"""Returns all cookies."""
return self.cookie_jar.allCookies()
def delete_cookies(self):
"""Deletes all cookies."""
self.cookie_jar.setAllCookies([])
def clear_alert_message(self):
"""Clears the alert message"""
self._alert = None
@can_load_page
def evaluate(self, script):
"""Evaluates script in page frame.
:param script: The script to evaluate.
"""
return (self.main_frame.evaluateJavaScript("%s" % script),
self._release_last_resources())
def evaluate_js_file(self, path, encoding='utf-8', **kwargs):
"""Evaluates javascript file at given path in current frame.
Raises native IOException in case of invalid file.
:param path: The path of the file.
:param encoding: The file's encoding.
"""
with codecs.open(path, encoding=encoding) as f:
return self.evaluate(f.read(), **kwargs)
def exists(self, selector):
"""Checks if element exists for given selector.
:param string: The element selector.
"""
return not self.main_frame.findFirstElement(selector).isNull()
def exit(self):
"""Exits application and related."""
if self.display:
self.webview.close()
Ghost._app.quit()
del self.manager
del self.page
del self.main_frame
if hasattr(self, 'xvfb'):
self.xvfb.terminate()
@can_load_page
def fill(self, selector, values):
"""Fills a form with provided values.
:param selector: A CSS selector to the target form to fill.
:param values: A dict containing the values.
"""
if not self.exists(selector):
raise Error("Can't find form")
resources = []
for field in values:
r, res = self.set_field_value("%s [name=%s]" % (selector, field),
values[field])
resources.extend(res)
return True, resources
@can_load_page
def fire_on(self, selector, method):
"""Call method on element matching given selector.
:param selector: A CSS selector to the target element.
:param method: The name of the method to fire.
:param expect_loading: Specifies if a page loading is expected.
"""
return self.evaluate('document.querySelector("%s").%s();' % \
(selector, method))
def global_exists(self, global_name):
"""Checks if javascript global exists.
:param global_name: The name of the global.
"""
return self.evaluate('!(typeof %s === "undefined");' % global_name)[0]
def hide(self):
"""Close the webview."""
try:
self.webview.close()
except:
raise Error("no webview to close")
def load_cookies(self, cookie_storage, keep_old=False):
"""load from cookielib's CookieJar or Set-Cookie3 format text file.
:param cookie_storage: file location string on disk or CookieJar
instance.
:param keep_old: Don't reset, keep cookies not overridden.
"""
def toQtCookieJar(PyCookieJar, QtCookieJar):
allCookies = QtCookieJar.cookies if keep_old else []
for pc in PyCookieJar:
qc = toQtCookie(pc)
allCookies.append(qc)
QtCookieJar.setAllCookies(allCookies)
def toQtCookie(PyCookie):
qc = QNetworkCookie(PyCookie.name, PyCookie.value)
qc.setSecure(PyCookie.secure)
if PyCookie.path_specified:
qc.setPath(PyCookie.path)
if PyCookie.domain != "":
qc.setDomain(PyCookie.domain)
if PyCookie.expires != 0:
t = QDateTime()
t.setTime_t(PyCookie.expires)
qc.setExpirationDate(t)
# not yet handled(maybe less useful):
# py cookie.rest / QNetworkCookie.setHttpOnly()
return qc
if cookie_storage.__class__.__name__ == 'str':
cj = LWPCookieJar(cookie_storage)
cj.load()
toQtCookieJar(cj, self.cookie_jar)
elif cookie_storage.__class__.__name__.endswith('CookieJar'):
toQtCookieJar(cookie_storage, self.cookie_jar)
else:
raise ValueError('unsupported cookie_storage type.')
def open(self,
address,
method='get',
headers={},
auth=None,
body=None,
default_popup_response=None):
"""Opens a web page.
:param address: The resource URL.
:param method: The Http method.
:param headers: An optional dict of extra request hearders.
: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)
:return: Page resource, All loaded resources.
"""
body = body or QByteArray()
try:
method = getattr(QNetworkAccessManager,
"%sOperation" % method.capitalize())
except AttributeError:
raise Error("Invalid http method %s" % method)
request = QNetworkRequest(QUrl(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:
Ghost._prompt_expected = (default_popup_response, None)
Ghost._confirm_expected = (default_popup_response, None)
return self.wait_for_page_loaded()
class prompt:
"""Statement that tells Ghost how to deal with javascript prompt().
:param value: A string value to fill in prompt.
:param callback: A callable that returns the value to fill in.
"""
def __init__(self, value='', callback=None):
self.value = value
self.callback = callback
def __enter__(self):
Ghost._prompt_expected = (self.value, self.callback)
def __exit__(self, type, value, traceback):
Ghost._prompt_expected = None
def region_for_selector(self, selector):
"""Returns frame region for given selector as tuple.
:param selector: The targeted element.
"""
geo = self.main_frame.findFirstElement(selector).geometry()
try:
region = (geo.left(), geo.top(), geo.right(), geo.bottom())
except:
raise Error("can't get region for selector '%s'" % selector)
return region
def save_cookies(self, cookie_storage):
"""Save to cookielib's CookieJar or Set-Cookie3 format text file.
:param cookie_storage: file location string or CookieJar instance.
"""
def toPyCookieJar(QtCookieJar, PyCookieJar):
for c in QtCookieJar.allCookies():
PyCookieJar.set_cookie(toPyCookie(c))
def toPyCookie(QtCookie):
port = None
port_specified = False
secure = QtCookie.isSecure()
name = str(QtCookie.name())
value = str(QtCookie.value())
v = str(QtCookie.path())
path_specified = bool(v != "")
path = v if path_specified else None
v = str(QtCookie.domain())
domain_specified = bool(v != "")
domain = v
if domain_specified:
domain_initial_dot = v.startswith('.')
else:
domain_initial_dot = None
v = long(QtCookie.expirationDate().toTime_t())
# Long type boundary on 32bit platfroms; avoid ValueError
expires = 2147483647 if v > 2147483647 else v
rest = {}
discard = False
return Cookie(0, name, value, port, port_specified, domain,
domain_specified, domain_initial_dot, path,
path_specified, secure, expires, discard, None, None,
rest)
if cookie_storage.__class__.__name__ == 'str':
cj = LWPCookieJar(cookie_storage)
toPyCookieJar(self.cookie_jar, cj)
cj.save()
elif cookie_storage.__class__.__name__.endswith('CookieJar'):
toPyCookieJar(self.cookie_jar, cookie_storage)
else:
raise ValueError('unsupported cookie_storage type.')
@can_load_page
def set_field_value(self, selector, value, blur=True):
"""Sets the value of the field matched by given selector.
:param selector: A CSS selector that target the field.
:param value: The value to fill in.
:param blur: An optional boolean that force blur when filled in.
"""
def _set_checkbox_value(el, value):
el.setFocus()
if value is True:
el.setAttribute('checked', 'checked')
else:
el.removeAttribute('checked')
def _set_checkboxes_value(els, value):
for el in els:
if el.attribute('value') == value:
_set_checkbox_value(el, True)
else:
_set_checkbox_value(el, False)
def _set_radio_value(els, value):
for el in els:
if el.attribute('value') == value:
el.setFocus()
el.setAttribute('checked', 'checked')
def _set_text_value(el, value):
el.setFocus()
el.setAttribute('value', value)
def _set_select_value(el, value):
el.setFocus()
self.evaluate(
'document.querySelector("%s").value = "%s";' %
(selector.replace('"', '\"'), value.replace('"', '\"')))
def _set_textarea_value(el, value):
el.setFocus()
el.setPlainText(value)
res, ressources = None, []
element = self.main_frame.findFirstElement(selector)
if element.isNull():
raise Error('can\'t find element for %s"' % selector)
if element.tagName() == "SELECT":
_set_select_value(element, value)
elif element.tagName() == "TEXTAREA":
_set_textarea_value(element, value)
elif element.tagName() == "INPUT":
if element.attribute('type').lower() in [
"color", "date", "datetime", "datetime-local", "email",
"hidden", "month", "number", "password", "range", "search",
"tel", "text", "time", "url", "week"
]:
_set_text_value(element, value)
elif element.attribute('type') == "checkbox":
els = self.main_frame.findAllElements(selector)
if els.count() > 1:
_set_checkboxes_value(els, value)
else:
_set_checkbox_value(element, value)
elif element.attribute('type') == "radio":
_set_radio_value(self.main_frame.findAllElements(selector),
value)
elif element.attribute('type') == "file":
Ghost._upload_file = value
res, resources = self.click(selector)
Ghost._upload_file = None
else:
raise Error('unsuported field tag')
if blur:
self.fire_on(selector, 'blur')
return res, ressources
def set_proxy(self,
type_,
host='localhost',
port=8888,
user='',
password=''):
"""Set up proxy for FURTHER connections.
:param type_: proxy type to use: \
none/default/socks5/https/http.
:param host: proxy server ip or host name.
:param port: proxy port.
"""
_types = {
'default': QNetworkProxy.DefaultProxy,
'none': QNetworkProxy.NoProxy,
'socks5': QNetworkProxy.Socks5Proxy,
'https': QNetworkProxy.HttpProxy,
'http': QNetworkProxy.HttpCachingProxy
}
if type_ is None:
type_ = 'none'
type_ = type_.lower()
if type_ in ['none', 'default']:
self.manager.setProxy(QNetworkProxy(_types[type_]))
return
elif type_ in _types:
proxy = QNetworkProxy(_types[type_],
hostName=host,
port=port,
user=user,
password=password)
self.manager.setProxy(proxy)
else:
raise ValueError('Unsupported proxy type:' + type_ \
+ '\nsupported types are: none/socks5/http/https/default')
def set_viewport_size(self, width, height):
"""Sets the page viewport size.
:param width: An integer that sets width pixel count.
:param height: An integer that sets height pixel count.
"""
self.page.setViewportSize(QSize(width, height))
def append_popup_message(self, message):
self.popup_messages.append(unicode(message))
def show(self):
"""Show current page inside a QWebView.
"""
self.webview = QtWebKit.QWebView()
self.webview.setPage(self.page)
self.webview.show()
def sleep(self, value):
started_at = time.time()
while True:
if time.time() > (started_at + value):
break
time.sleep(0.01)
Ghost._app.processEvents()
def wait_for(self, condition, timeout_message):
"""Waits until condition is True.
:param condition: A callable that returns the condition.
:param timeout_message: The exception message on timeout.
"""
started_at = time.time()
while not condition():
if time.time() > (started_at + self.wait_timeout):
raise TimeoutError(timeout_message)
time.sleep(0.01)
Ghost._app.processEvents()
if self.wait_callback is not None:
self.wait_callback()
def wait_for_alert(self):
"""Waits for main frame alert().
"""
self.wait_for(lambda: Ghost._alert is not None,
'User has not been alerted.')
msg = Ghost._alert
Ghost._alert = None
return msg, self._release_last_resources()
def wait_for_page_loaded(self):
"""Waits until page is loaded, assumed that a page as been requested.
"""
self.wait_for(lambda: self.loaded, 'Unable to load requested page')
resources = self._release_last_resources()
page = None
url = self.main_frame.url().toString()
url_without_hash = url.split("#")[0]
for resource in resources:
if url == resource.url or url_without_hash == resource.url:
page = resource
return page, resources
def wait_for_selector(self, selector):
"""Waits until selector match an element on the frame.
:param selector: The selector to wait for.
"""
self.wait_for(lambda: self.exists(selector),
'Can\'t find element matching "%s"' % selector)
return True, self._release_last_resources()
def wait_while_selector(self, selector):
"""Waits until the selector no longer matches an element on the frame.
:param selector: The selector to wait for.
"""
self.wait_for(lambda: not self.exists(selector),
'Element matching "%s" is still available' % selector)
return True, self._release_last_resources()
def wait_for_text(self, text):
"""Waits until given text appear on main frame.
:param text: The text to wait for.
"""
self.wait_for(lambda: text in self.content,
'Can\'t find "%s" in current frame' % text)
return True, self._release_last_resources()
def _authenticate(self, mix, authenticator):
"""Called back on basic / proxy http auth.
:param mix: The QNetworkReply or QNetworkProxy object.
:param authenticator: The QAuthenticator object.
"""
if self._auth_attempt == 0:
username, password = self._auth
authenticator.setUser(username)
authenticator.setPassword(password)
self._auth_attempt += 1
def _page_loaded(self):
"""Called back when page is loaded.
"""
self.loaded = True
self.cache.clear()
def _page_load_started(self):
"""Called back when page load started.
"""
self.loaded = False
def _release_last_resources(self):
"""Releases last loaded resources.
:return: The released resources.
"""
last_resources = self.http_resources
self.http_resources = []
return last_resources
def _request_ended(self, reply):
"""Adds an HttpResource object to http_resources.
:param reply: The QNetworkReply object.
"""
if reply.attribute(QNetworkRequest.HttpStatusCodeAttribute):
Logger.log("[%s] bytesAvailable()= %s" %
(str(reply.url()), reply.bytesAvailable()),
level="debug")
# Some web pages return cache headers that mandates not to cache
# the reply, which means we won't find this QNetworkReply in
# the cache object. In this case bytesAvailable will return > 0.
# Such pages are www.etsy.com
# This is a bit of a hack and due to the async nature of QT, might
# not work at times. We should move to using some proxied
# implementation of QNetworkManager and QNetworkReply in order to
# get the contents of the requests properly rather than relying
# on the cache.
if reply.bytesAvailable() > 0:
content = reply.peek(reply.bytesAvailable())
else:
content = None
self.http_resources.append(
HttpResource(reply, self.cache, content=content))
def _unsupported_content(self, reply):
"""Adds an HttpResource object to http_resources with unsupported
content.
:param reply: The QNetworkReply object.
"""
self.wait_for(lambda: reply.isFinished(), 'Download timeout.')
if reply.attribute(QNetworkRequest.HttpStatusCodeAttribute):
self.http_resources.append(
HttpResource(reply, self.cache, reply.readAll()))
def _on_manager_ssl_errors(self, reply, errors):
url = unicode(reply.url().toString())
if self.ignore_ssl_errors:
reply.ignoreSslErrors()
else:
Logger.log('SSL certificate error: %s' % url, level='warning')
def __init__(self,
user_agent=default_user_agent,
wait_timeout=8,
wait_callback=None,
log_level=logging.WARNING,
display=False,
viewport_size=(800, 600),
ignore_ssl_errors=True,
cache_dir=os.path.join(tempfile.gettempdir(), "ptwebkit.py"),
plugins_enabled=False,
java_enabled=False,
plugin_path=['/usr/lib/mozilla/plugins', ],
download_images=True,
qt_debug=False,
show_scroolbars=True,
network_access_manager_class=None):
self.http_resources = []
self.user_agent = user_agent
self.wait_callback = wait_callback
self.wait_timeout = wait_timeout
self.display = display
if sys.platform.startswith('linux') and not 'DISPLAY' in os.environ\
and not hasattr(PtWebkit, 'xvfb'):
try:
os.environ['DISPLAY'] = ':99'
PtWebkit.xvfb = subprocess.Popen(['Xvfb', ':99'])
except OSError:
raise Error('Xvfb is required to a ghost run outside ' +
'an X instance')
if not PtWebkit._app:
PtWebkit._app = QApplication.instance() or QApplication(['ghost'])
qInstallMsgHandler(QTMessageProxy(qt_debug))
if plugin_path:
for p in plugin_path:
PtWebkit._app.addLibraryPath(p)
if network_access_manager_class is not None:
self.page.setNetworkAccessManager(network_access_manager_class())
self.page = PtWebPage(PtWebkit._app, self)
QWebSettings.setMaximumPagesInCache(0)
QWebSettings.setObjectCacheCapacities(0, 0, 0)
QWebSettings.globalSettings().setAttribute(
QWebSettings.LocalStorageEnabled, True)
self.page.setForwardUnsupportedContent(True)
self.page.settings().setAttribute(
QWebSettings.AutoLoadImages, download_images)
self.page.settings().setAttribute(
QWebSettings.PluginsEnabled, plugins_enabled)
self.page.settings().setAttribute(QWebSettings.JavaEnabled,
java_enabled)
if not show_scroolbars:
self.page.mainFrame().setScrollBarPolicy(Qt.Vertical,
Qt.ScrollBarAlwaysOff)
self.page.mainFrame().setScrollBarPolicy(Qt.Horizontal,
Qt.ScrollBarAlwaysOff)
self.set_viewport_size(*viewport_size)
# Page signals
self.page.loadFinished.connect(self._page_loaded)
self.page.loadStarted.connect(self._page_load_started)
self.page.unsupportedContent.connect(self._unsupported_content)
self.manager = self.page.networkAccessManager()
self.manager.finished.connect(self._request_ended)
self.manager.sslErrors.connect(self._on_manager_ssl_errors)
# Cache
if cache_dir:
self.cache = QNetworkDiskCache()
self.cache.setCacheDirectory(cache_dir)
self.manager.setCache(self.cache)
else:
self.cache = None
# Cookie jar
self.cookie_jar = QNetworkCookieJar()
self.manager.setCookieJar(self.cookie_jar)
self.main_frame = self.page.mainFrame()
# User Agent
self.page.setUserAgent(self.user_agent)
#logger.setLevel(log_level)
class GhostQWebView(QtWebKit.QWebView):
def sizeHint(self):
return QSize(*viewport_size)
self.webview = GhostQWebView()
if plugins_enabled:
self.webview.settings().setAttribute(
QtWebKit.QWebSettings.PluginsEnabled, True)
if java_enabled:
self.webview.settings().setAttribute(
QtWebKit.QWebSettings.JavaEnabled, True)
self.webview.setPage(self.page)
if self.display:
self.webview.show()
class PtWebkit:
_alert = None
_app = None
def __init__(self,
user_agent=default_user_agent,
wait_timeout=8,
wait_callback=None,
log_level=logging.WARNING,
display=False,
viewport_size=(800, 600),
ignore_ssl_errors=True,
cache_dir=os.path.join(tempfile.gettempdir(), "ptwebkit.py"),
plugins_enabled=False,
java_enabled=False,
plugin_path=['/usr/lib/mozilla/plugins', ],
download_images=True,
qt_debug=False,
show_scroolbars=True,
network_access_manager_class=None):
self.http_resources = []
self.user_agent = user_agent
self.wait_callback = wait_callback
self.wait_timeout = wait_timeout
self.display = display
if sys.platform.startswith('linux') and not 'DISPLAY' in os.environ\
and not hasattr(PtWebkit, 'xvfb'):
try:
os.environ['DISPLAY'] = ':99'
PtWebkit.xvfb = subprocess.Popen(['Xvfb', ':99'])
except OSError:
raise Error('Xvfb is required to a ghost run outside ' +
'an X instance')
if not PtWebkit._app:
PtWebkit._app = QApplication.instance() or QApplication(['ghost'])
qInstallMsgHandler(QTMessageProxy(qt_debug))
if plugin_path:
for p in plugin_path:
PtWebkit._app.addLibraryPath(p)
if network_access_manager_class is not None:
self.page.setNetworkAccessManager(network_access_manager_class())
self.page = PtWebPage(PtWebkit._app, self)
QWebSettings.setMaximumPagesInCache(0)
QWebSettings.setObjectCacheCapacities(0, 0, 0)
QWebSettings.globalSettings().setAttribute(
QWebSettings.LocalStorageEnabled, True)
self.page.setForwardUnsupportedContent(True)
self.page.settings().setAttribute(
QWebSettings.AutoLoadImages, download_images)
self.page.settings().setAttribute(
QWebSettings.PluginsEnabled, plugins_enabled)
self.page.settings().setAttribute(QWebSettings.JavaEnabled,
java_enabled)
if not show_scroolbars:
self.page.mainFrame().setScrollBarPolicy(Qt.Vertical,
Qt.ScrollBarAlwaysOff)
self.page.mainFrame().setScrollBarPolicy(Qt.Horizontal,
Qt.ScrollBarAlwaysOff)
self.set_viewport_size(*viewport_size)
# Page signals
self.page.loadFinished.connect(self._page_loaded)
self.page.loadStarted.connect(self._page_load_started)
self.page.unsupportedContent.connect(self._unsupported_content)
self.manager = self.page.networkAccessManager()
self.manager.finished.connect(self._request_ended)
self.manager.sslErrors.connect(self._on_manager_ssl_errors)
# Cache
if cache_dir:
self.cache = QNetworkDiskCache()
self.cache.setCacheDirectory(cache_dir)
self.manager.setCache(self.cache)
else:
self.cache = None
# Cookie jar
self.cookie_jar = QNetworkCookieJar()
self.manager.setCookieJar(self.cookie_jar)
self.main_frame = self.page.mainFrame()
# User Agent
self.page.setUserAgent(self.user_agent)
#logger.setLevel(log_level)
class GhostQWebView(QtWebKit.QWebView):
def sizeHint(self):
return QSize(*viewport_size)
self.webview = GhostQWebView()
if plugins_enabled:
self.webview.settings().setAttribute(
QtWebKit.QWebSettings.PluginsEnabled, True)
if java_enabled:
self.webview.settings().setAttribute(
QtWebKit.QWebSettings.JavaEnabled, True)
self.webview.setPage(self.page)
if self.display:
self.webview.show()
def show(self):
"""Show current page inside a QWebView.
"""
self.webview.show()
def hide(self):
"""Close the webview."""
try:
self.webview.close()
except:
raise Error("no webview to close")
def set_proxy(self, type_, host='localhost', port=8888, user='',
password=''):
"""Set up proxy for FURTHER connections.
:param type_: proxy type to use: \
none/default/socks5/https/http.
:param host: proxy server ip or host name.
:param port: proxy port.
"""
_types = {
'default': QNetworkProxy.DefaultProxy,
'none': QNetworkProxy.NoProxy,
'socks5': QNetworkProxy.Socks5Proxy,
'https': QNetworkProxy.HttpProxy,
'http': QNetworkProxy.HttpCachingProxy
}
if type_ is None:
type_ = 'none'
type_ = type_.lower()
if type_ in ['none', 'default']:
self.manager.setProxy(QNetworkProxy(_types[type_]))
return
elif type_ in _types:
proxy = QNetworkProxy(_types[type_], hostName=host, port=port,
user=user, password=password)
self.manager.setProxy(proxy)
else:
raise ValueError('Unsupported proxy type:' + type_ \
+ '\nsupported types are: none/socks5/http/https/default')
self.manager.finished.connect(self._request_ended)
self.manager.sslErrors.connect(self._on_manager_ssl_errors)
def set_viewport_size(self, width, height):
"""Sets the page viewport size.
:param width: An integer that sets width pixel count.
:param height: An integer that sets height pixel count.
"""
self.page.setViewportSize(QSize(width, height))
def delete_cookies(self):
"""Deletes all cookies."""
self.cookie_jar.setAllCookies([])
def clear_alert_message(self):
"""Clears the alert message"""
self._alert = None
def open(self, address, method='get', headers={}, auth=None, body=None,
default_popup_response=None, wait=True):
"""Opens a web page.
:param address: The resource URL.
:param method: The Http method.
:param headers: An optional dict of extra request hearders.
: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()).
:return: Page resource, and all loaded resources, unless wait
is False, in which case it returns None.
"""
body = body or QByteArray()
try:
method = getattr(QNetworkAccessManager,
"%sOperation" % method.capitalize())
except AttributeError:
raise Error("Invalid http method %s" % method)
request = QNetworkRequest(QUrl(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:
PtWebkit._prompt_expected = (default_popup_response, None)
PtWebkit._confirm_expected = (default_popup_response, None)
if wait:
return self.wait_for_page_loaded()
@property
def content(self, to_unicode=True):
"""Returns current frame HTML as a string.
:param to_unicode: Whether to convert html to unicode or not
"""
if to_unicode:
return unicode(self.main_frame.toHtml())
else:
return self.main_frame.toHtml()
def wait_for_page_loaded(self):
"""Waits until page is loaded, assumed that a page as been requested.
"""
self.wait_for(lambda: self.loaded,
'Unable to load requested page')
resources = self._release_last_resources()
page = None
url = self.main_frame.url().toString()
url_without_hash = url.split("#")[0]
for resource in resources:
if url == resource.url or url_without_hash == resource.url:
page = resource
return page, resources
def wait_for(self, condition, timeout_message):
"""Waits until condition is True.
:param condition: A callable that returns the condition.
:param timeout_message: The exception message on timeout.
"""
started_at = time.time()
while not condition():
if time.time() > (started_at + self.wait_timeout):
raise TimeoutError(timeout_message)
time.sleep(0.01)
PtWebkit._app.processEvents()
if self.wait_callback is not None:
self.wait_callback()
def _page_loaded(self):
"""Called back when page is loaded.
"""
self.loaded = True
if self.cache:
self.cache.clear()
def _page_load_started(self):
"""Called back when page load started.
"""
self.loaded = False
def _release_last_resources(self):
"""Releases last loaded resources.
:return: The released resources.
"""
last_resources = self.http_resources
self.http_resources = []
return last_resources
def _request_ended(self, reply):
"""Adds an HttpResource object to http_resources.
:param reply: The QNetworkReply object.
"""
if reply.attribute(QNetworkRequest.HttpStatusCodeAttribute):
Logger.log("[%s] bytesAvailable()= %s" % (str(reply.url()),
reply.bytesAvailable()), level="debug")
# Some web pages return cache headers that mandates not to cache
# the reply, which means we won't find this QNetworkReply in
# the cache object. In this case bytesAvailable will return > 0.
# Such pages are www.etsy.com
# This is a bit of a hack and due to the async nature of QT, might
# not work at times. We should move to using some proxied
# implementation of QNetworkManager and QNetworkReply in order to
# get the contents of the requests properly rather than relying
# on the cache.
if reply.bytesAvailable() > 0:
content = reply.peek(reply.bytesAvailable())
else:
content = None
self.http_resources.append(HttpResource(reply, self.cache,
content=content))
def _unsupported_content(self, reply):
reply.readyRead.connect(
lambda reply=reply: self._reply_download_content(reply))
def _reply_download_content(self, reply):
"""Adds an HttpResource object to http_resources with unsupported
content.
:param reply: The QNetworkReply object.
"""
if reply.attribute(QNetworkRequest.HttpStatusCodeAttribute):
self.http_resources.append(HttpResource(reply, self.cache,
reply.readAll()))
def _on_manager_ssl_errors(self, reply, errors):
url = unicode(reply.url().toString())
if self.ignore_ssl_errors:
reply.ignoreSslErrors()
else:
Logger.log('SSL certificate error: %s' % url, level='warning')
"""Processes replies and dispatches results to requesters.
This method will be invoked on each finished request, submitted by
:py:meth:`.fetch_banner`. It then converts the loaded data into a
banner and passes the result on to the model of the request's origin.
:param reply: The network reply from a banner load request.
:type reply: :class:`.QNetworkReply`
"""
pixmap = QPixmap()
if reply.error() == QNetworkReply.NoError:
image_bytes = reply.readAll()
pixmap.loadFromData(image_bytes)
else:
pixmap.load(":/icons/image-missing.png")
index = self._ready_signal.pop(reply.request().url().toString())
index.model().setData(index, pixmap, Qt.DecorationRole)
banner_loader = BannerLoader()
disk_cache = QNetworkDiskCache()
disk_cache.setCacheDirectory(dirs.user_cache_dir)
disk_cache.setMaximumCacheSize(100 * 1024 * 1024) # 100MB Cache
access_manager = QNetworkAccessManager()
access_manager.setCache(disk_cache)
access_manager.finished.connect(banner_loader.finished_request)
