我正在尝试使用 Python+pygtk+webkit 构建浏览器。现在，我想限制连接速度（即）加载网页或下载速度的时间..主要是 http ..
那么，有没有我可以使用的任何协议或 webkit 方法。下面是我的浏览器代码。提前谢谢！！
import webkit
import gobject
class Browser:
default_site = "http://stackoverflow.com/"
def delete_event(self, widget, event, data=None):
return False
def destroy(self, widget, data=None):
gtk.main_quit()
def __init__(self):
gobject.threads_init()
self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
self.window.set_resizable(True)
self.window.connect("delete_event", self.delete_event)
self.window.connect("destroy", self.destroy)
#webkit.WebView allows us to embed a webkit browser
#it takes care of going backwards/fowards/reloading
#it even handles flash
self.web_view = webkit.WebView()
self.web_view.open(self.default_site)
toolbar = gtk.Toolbar()
#create the back button and connect the action to
#allow us to go backwards using webkit
self.back_button = gtk.ToolButton(gtk.STOCK_GO_BACK)
self.back_button.connect("clicked", self.go_back)
#same idea for forward button
self.forward_button = gtk.ToolButton(gtk.STOCK_GO_FORWARD)
self.forward_button.connect("clicked", self.go_forward)
#again for refresh
refresh_button = gtk.ToolButton(gtk.STOCK_REFRESH)
refresh_button.connect("clicked", self.refresh)
#add the buttons to the toolbar
toolbar.add(self.back_button)
toolbar.add(self.forward_button)
toolbar.add(refresh_button)
#entry bar for typing in and display URLs, when they type in a site
#and hit enter the on_active function is called
self.url_bar = gtk.Entry()
self.url_bar.connect("activate", self.on_active)
#anytime a site is loaded the update_buttons will be called
self.web_view.connect("load_committed", self.update_buttons)
scroll_window = gtk.ScrolledWindow(None, None)
scroll_window.add(self.web_view)
vbox = gtk.VBox(False, 0)
vbox.pack_start(toolbar, False, True, 0)
vbox.pack_start(self.url_bar, False, True, 0)
vbox.add(scroll_window)
self.window.add(vbox)
self.window.show_all()
def on_active(self, widge, data=None):
'''When the user enters an address in the bar, we check to make
sure they added the http://, if not we add it for them. Once
the url is correct, we just ask webkit to open that site.'''
url = self.url_bar.get_text()
try:
url.index("://")
except:
url = "http://"+url
self.url_bar.set_text(url)
self.web_view.open(url)
def go_back(self, widget, data=None):
'''Webkit will remember the links and this will allow us to go
backwards.'''
self.web_view.go_back()
def go_forward(self, widget, data=None):
'''Webkit will remember the links and this will allow us to go
forwards.'''
self.web_view.go_forward()
def refresh(self, widget, data=None):
'''Simple makes webkit reload the current back.'''
self.web_view.reload()
def update_buttons(self, widget, data=None):
'''Gets the current url entry and puts that into the url bar.
It then checks to see if we can go back, if we can it makes the
back button clickable. Then it does the same for the foward
button.'''
#self.url_bar.set_text( widget.get_main_frame().get_uri() )
url = str(widget.get_main_frame().get_uri())
print url
if (url == "http://www.facebook.com/"):
self.__go("age_error.html")
else:
self.url_bar.set_text( widget.get_main_frame().get_uri() )
print widget.get_main_frame().get_uri()
self.back_button.set_sensitive(self.web_view.can_go_back())
self.forward_button.set_sensitive(self.web_view.can_go_forward())
def main(self):
gtk.main()
if __name__ == "__main__":
browser = Browser()
browser.main()