[GTK] [WebKit2] Add an 'authenticate' signal to WebKitWebView

[GTK] [WebKit2] Add an 'authenticate' signal to WebKitWebView
https://bugs.webkit.org/show_bug.cgi?id=99352

Patch by Brian Holt <brian.holt@samsung.com> on 2013-08-09
Reviewed by Carlos Garcia Campos.

Add a new public class to the API, WebKitAuthenticationRequest, to be
emitted along with a new WebKitWebView::authenticate signal to
let client applications to provide their own authentication
when the user is challenged with HTTP authentication. The
credential is exposed through a new class WebKitCredential.

* GNUmakefile.list.am:
* UIProcess/API/gtk/WebKitAuthenticationDialog.cpp:
(okButtonClicked): Use new API for authentication.
(cancelButtonClicked): Ditto.
(webkitAuthenticationDialogInitialize):Get
authenticationChallenge from request object.
(webkitAuthenticationDialogNew): Ditto.
* UIProcess/API/gtk/WebKitAuthenticationDialog.h:
* UIProcess/API/gtk/WebKitAuthenticationRequest.cpp: Added new
class representing a HTTP authentication request.
(webkitAuthenticationRequestDispose):
(webkit_authentication_request_class_init):
(webkitAuthenticationRequestCreate):
(webkitAuthenticationRequestGetAuthenticationChallenge):
(webkit_authentication_request_can_save_credentials):
(webkit_authentication_request_get_proposed_credential):
(webkit_authentication_request_get_host):
(webkit_authentication_request_get_port):
(webkit_authentication_request_get_realm):
(webkit_authentication_request_get_scheme):
(webkit_authentication_request_is_for_proxy):
(webkit_authentication_request_is_retry):
(webkit_authentication_request_authenticate):
(webkit_authentication_request_cancel):
* UIProcess/API/gtk/WebKitAuthenticationRequest.h: Added.
* UIProcess/API/gtk/WebKitAuthenticationRequestPrivate.h: Added.
* UIProcess/API/gtk/WebKitCredential.cpp: Added new class to
support credentials for HTTP authentication.
(_WebKitCredential::_WebKitCredential):
(webkitCredentialCreate):
(webkitCredentialGetCredential):
(webkit_credential_new):
(webkit_credential_copy):
(webkit_credential_free):
(webkit_credential_get_username):
(webkit_credential_get_password):
(webkit_credential_has_password):
(webkit_credential_get_persistence):
* UIProcess/API/gtk/WebKitCredential.h: Added.
* UIProcess/API/gtk/WebKitCredentialPrivate.h: Added.
* UIProcess/API/gtk/WebKitWebView.cpp: Added authenticate signal.
(webkitWebViewAuthenticate): Default signal handler for authenticate.
(webkit_web_view_class_init): Ditto.
(webkitWebViewHandleAuthenticationChallenge): Create an
authentication request and emit it with authenticate signal.
* UIProcess/API/gtk/WebKitWebView.h: Replaced reserved function
pointer slot with for WebViewClass with function pointer to
authenticate signal handler.
* UIProcess/API/gtk/docs/webkit2gtk-docs.sgml: Added new section for
the authentication request.
* UIProcess/API/gtk/docs/webkit2gtk-sections.txt: Ditto.
* UIProcess/API/gtk/docs/webkit2gtk.types: Added authentication
request and credential types.
* UIProcess/API/gtk/tests/TestWebKitWebView.cpp: Created a new
unit test for HTTP authentication. A libsoup server callback
handler is installed that creates soup messages with appropriate
headers and body to test HTTP authentication.
(testWebViewAuthenticationRequest): Test the authentication
request and credential API.
(testWebViewAuthenticationCancel): Test cancelled authentication.
(testWebViewAuthenticationFailure): Test repeated authentication failures.
(testWebViewAuthenticationNoCredential): Test continue without
credentials.
(testWebViewAuthenticationStorage): Test credential storage.
(testWebViewAuthenticationSuccess): Test successful authentication.
(beforeAll): Added tests.
* UIProcess/API/gtk/webkit2.h: Added WebKitAuthenticationRequest and
WebKitCredential headers.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@153882 268f45cc-cd09-0410-ab3c-d52691b4dbfc