Ive got a strange bug in the call back function for this which I cant
understand.
When the callback is called I check the requestd url to see if it is one
that I want to permit, but on certain sites (Wikipedia search is a prim
example) the url returned is null which then causes a segmentation fault
when I try to access it. I dont understand why sometimes it comes back
as null. the code is as follows:
gchar *url=NULL;
g_object_get (navigation_action,"original-uri", &url,NULL);
std::string requestedurl=std::string(url); //needs to be a C++
string so I can do a validation check later
g_free(url);
g_print("url is: ");
g_print(requestedurl.c_str());
.....carry on here to do validation
When run (on certain sites) it crashes with the following output:
url is:
Program received signal SIGSEGV, Segmentation fault.
0xf643e4c1 in ?? () from /lib/i686/cmov/libc.so.6
Ive tried various ways of accessing the url:
std::string requestedurl
=std::string(webkit_network_request_get_uri(request));
std::string requestedurl
=std::string(webkit_web_navigation_action_get_original_uri(navigation_action));
std::string requestedurl=std::string(webkit_web_frame_get_uri(frame));
But they all result in the same problem.
The prototype for the callback function is:
gboolean trapNavigationRequested(WebKitWebView *webView, WebKitWebFrame
*frame,WebKitNetworkRequest *request,WebKitWebNavigationAction
*navigation_action, WebKitWebPolicyDecision *policy_decision,gpointer
user_data)
As I say its only clicking links on certain sites that cause this, other
sites it works fine leaving me totally puzzled.
Any ideas?
Thanks
Andrew
On 07/09/11 21:44, Emmanuel Rodriguez wrote:
On Wed, Sep 7, 2011 at 18:12, Andrew Wood<[email protected]> wrote:
How do I intercept a request to load a URL which has come from within
webkit, such as a user clicking a link on a page, a redirect (either via
HTTP or using the meta refresh tag), or a page which is using frames to load
URLs other than the one typed by the user?
The signal "navigation-policy-decision-requested" that's emitted by
the WebKitWebView can help you. With it you can detect users requests
for iframes and clicked links. You'll have to test how it handles
redirects.
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