[libsoup] Add API to clear cached credentials from SoupAuthManager

[Carlos Garcia Campos <carlosgc src gnome org>]

commit c661c44a3689fbc2aa562cc81b9a884f29735694
Author: Carlos Garcia Campos <cgarcia igalia com>
Date:   Mon Nov 7 08:44:36 2016 +0100

    Add API to clear cached credentials from SoupAuthManager
    
    In WebKit, we need to clear the cached credentials. It's mainly used by
    tests to ensure that auth tests are independent to each other.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=774031

 docs/reference/libsoup-2.4-sections.txt |    1 +
 libsoup/soup-auth-manager.c             |   21 +++++++++++++++++++++
 libsoup/soup-auth-manager.h             |    3 +++
 tests/auth-test.c                       |   24 ++++++++++++++++++++++++
 4 files changed, 49 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/libsoup-2.4-sections.txt b/docs/reference/libsoup-2.4-sections.txt
index 285c30e..b3e15c9 100644
--- a/docs/reference/libsoup-2.4-sections.txt
+++ b/docs/reference/libsoup-2.4-sections.txt
@@ -629,6 +629,7 @@ soup_auth_save_password
 SoupAuthManager
 SOUP_TYPE_AUTH_MANAGER
 soup_auth_manager_use_auth
+soup_auth_manager_clear_cached_credentials
 <SUBSECTION Standard>
 SoupAuthManagerPrivate
 SoupAuthManagerClass
diff --git a/libsoup/soup-auth-manager.c b/libsoup/soup-auth-manager.c
index 703d188..4e1645c 100644
--- a/libsoup/soup-auth-manager.c
+++ b/libsoup/soup-auth-manager.c
@@ -740,6 +740,27 @@ soup_auth_manager_use_auth (SoupAuthManager *manager,
        g_mutex_unlock (&priv->lock);
 }
 
+/**
+ * soup_auth_manager_clear_cached_credentials:
+ * @manager: a #SoupAuthManager
+ *
+ * Clear all credentials cached by @manager
+ *
+ * Since: 2.58
+ */
+void
+soup_auth_manager_clear_cached_credentials (SoupAuthManager *manager)
+{
+       SoupAuthManagerPrivate *priv;
+
+       g_return_if_fail (SOUP_IS_AUTH_MANAGER (manager));
+
+       priv = manager->priv;
+       g_mutex_lock (&priv->lock);
+       g_hash_table_remove_all (priv->auth_hosts);
+       g_mutex_unlock (&priv->lock);
+}
+
 static void
 soup_auth_manager_session_feature_init (SoupSessionFeatureInterface *feature_interface,
                                        gpointer interface_data)
diff --git a/libsoup/soup-auth-manager.h b/libsoup/soup-auth-manager.h
index 74d70dd..c935d99 100644
--- a/libsoup/soup-auth-manager.h
+++ b/libsoup/soup-auth-manager.h
@@ -41,6 +41,9 @@ void  soup_auth_manager_use_auth (SoupAuthManager *manager,
                                  SoupURI         *uri,
                                  SoupAuth        *auth);
 
+SOUP_AVAILABLE_IN_2_58
+void soup_auth_manager_clear_cached_credentials (SoupAuthManager *manager);
+
 G_END_DECLS
 
 #endif /* SOUP_AUTH_MANAGER_H */
diff --git a/tests/auth-test.c b/tests/auth-test.c
index 775c7f8..cf1f246 100644
--- a/tests/auth-test.c
+++ b/tests/auth-test.c
@@ -1264,6 +1264,29 @@ do_batch_tests (gconstpointer data)
        soup_test_session_abort_unref (session);
 }
 
+static void
+do_clear_credentials_test (void)
+{
+       SoupSession *session;
+       SoupAuthManager *manager;
+       char *uri;
+
+       SOUP_TEST_SKIP_IF_NO_APACHE;
+
+       session = soup_test_session_new (SOUP_TYPE_SESSION, NULL);
+
+       uri = g_strconcat (base_uri, "Digest/realm1/", NULL);
+       do_digest_nonce_test (session, "First", uri, TRUE, TRUE);
+
+       manager = SOUP_AUTH_MANAGER (soup_session_get_feature (session, SOUP_TYPE_AUTH_MANAGER));
+       soup_auth_manager_clear_cached_credentials (manager);
+
+       do_digest_nonce_test (session, "Second", uri, TRUE, TRUE);
+       g_free (uri);
+
+       soup_test_session_abort_unref (session);
+}
+
 int
 main (int argc, char **argv)
 {
@@ -1286,6 +1309,7 @@ main (int argc, char **argv)
        g_test_add_func ("/auth/auth-close", do_auth_close_test);
        g_test_add_func ("/auth/infinite-auth", do_infinite_auth_test);
        g_test_add_func ("/auth/disappearing-auth", do_disappearing_auth_test);
+       g_test_add_func ("/auth/clear-credentials", do_clear_credentials_test);
 
        ret = g_test_run ();