libsoup/soup-session.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * soup-session.c
   4  *
   5  * Copyright (C) 2000-2003, Ximian, Inc.
   6  */
   7
   8 #ifdef HAVE_CONFIG_H
   9 #include <config.h>
  10 #endif
  11
  12 #include <unistd.h>
  13 #include <string.h>
  14 #include <stdlib.h>
  15
  16 #include "soup-auth.h"
  17 #include "soup-session.h"
  18 #include "soup-connection.h"
  19 #include "soup-connection-ntlm.h"
  20 #include "soup-marshal.h"
  21 #include "soup-message-filter.h"
  22 #include "soup-message-queue.h"
  23 #include "soup-ssl.h"
  24 #include "soup-uri.h"
  25
  26 typedef struct {
  27         SoupUri    *root_uri;
  28
  29         GSList     *connections;      /* CONTAINS: SoupConnection */
  30         guint       num_conns;
  31
  32         GHashTable *auth_realms;      /* path -> scheme:realm */
  33         GHashTable *auths;            /* scheme:realm -> SoupAuth */
  34 } SoupSessionHost;
  35
  36 typedef struct {
  37         SoupUri *proxy_uri;
  38         guint max_conns, max_conns_per_host;
  39         gboolean use_ntlm;
  40
  41         char *ssl_ca_file;
  42         gpointer ssl_creds;
  43
  44         GSList *filters;
  45
  46         GHashTable *hosts; /* SoupUri -> SoupSessionHost */
  47         GHashTable *conns; /* SoupConnection -> SoupSessionHost */
  48         guint num_conns;
  49
  50         SoupSessionHost *proxy_host;
  51
  52         /* Must hold the host_lock before potentially creating a
  53          * new SoupSessionHost, or adding/removing a connection.
  54          * Must not emit signals or destroy objects while holding it.
  55          */
  56         GMutex *host_lock;
  57
  58         GMainContext *async_context;
  59 } SoupSessionPrivate;
  60 #define SOUP_SESSION_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), SOUP_TYPE_SESSION, SoupSessionPrivate))
  61
  62 static guint    host_uri_hash  (gconstpointer key);
  63 static gboolean host_uri_equal (gconstpointer v1, gconstpointer v2);
  64 static void     free_host      (SoupSessionHost *host);
  65
  66 static void setup_message   (SoupMessageFilter *filter, SoupMessage *msg);
  67
  68 static void queue_message   (SoupSession *session, SoupMessage *msg,
  69                              SoupMessageCallbackFn callback,
  70                              gpointer user_data);
  71 static void requeue_message (SoupSession *session, SoupMessage *msg);
  72 static void cancel_message  (SoupSession *session, SoupMessage *msg);
  73
  74 #define SOUP_SESSION_MAX_CONNS_DEFAULT 10
  75 #define SOUP_SESSION_MAX_CONNS_PER_HOST_DEFAULT 4
  76
  77 static void filter_iface_init (SoupMessageFilterClass *filter_class);
  78
  79 G_DEFINE_TYPE_EXTENDED (SoupSession, soup_session, G_TYPE_OBJECT, 0,
  80                         G_IMPLEMENT_INTERFACE (SOUP_TYPE_MESSAGE_FILTER,
  81                                                filter_iface_init))
  82
  83 enum {
  84         AUTHENTICATE,
  85         REAUTHENTICATE,
  86         LAST_SIGNAL
  87 };
  88
  89 static guint signals[LAST_SIGNAL] = { 0 };
  90
  91 enum {
  92         PROP_0,
  93
  94         PROP_PROXY_URI,
  95         PROP_MAX_CONNS,
  96         PROP_MAX_CONNS_PER_HOST,
  97         PROP_USE_NTLM,
  98         PROP_SSL_CA_FILE,
  99         PROP_ASYNC_CONTEXT,
 100
 101         LAST_PROP
 102 };
 103
 104 static void set_property (GObject *object, guint prop_id,
 105                           const GValue *value, GParamSpec *pspec);
 106 static void get_property (GObject *object, guint prop_id,
 107                           GValue *value, GParamSpec *pspec);
 108
 109 static void
 110 soup_session_init (SoupSession *session)
 111 {
 112         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 113
 114         session->queue = soup_message_queue_new ();
 115
 116         priv->host_lock = g_mutex_new ();
 117         priv->hosts = g_hash_table_new (host_uri_hash, host_uri_equal);
 118         priv->conns = g_hash_table_new (NULL, NULL);
 119
 120         priv->max_conns = SOUP_SESSION_MAX_CONNS_DEFAULT;
 121         priv->max_conns_per_host = SOUP_SESSION_MAX_CONNS_PER_HOST_DEFAULT;
 122 }
 123
 124 static gboolean
 125 foreach_free_host (gpointer key, gpointer host, gpointer data)
 126 {
 127         free_host (host);
 128         return TRUE;
 129 }
 130
 131 static void
 132 cleanup_hosts (SoupSessionPrivate *priv)
 133 {
 134         g_mutex_lock (priv->host_lock);
 135         g_hash_table_foreach_remove (priv->hosts, foreach_free_host, NULL);
 136         g_mutex_unlock (priv->host_lock);
 137 }
 138
 139 static void
 140 dispose (GObject *object)
 141 {
 142         SoupSession *session = SOUP_SESSION (object);
 143         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 144         GSList *f;
 145
 146         soup_session_abort (session);
 147         cleanup_hosts (priv);
 148
 149         if (priv->filters) {
 150                 for (f = priv->filters; f; f = f->next)
 151                         g_object_unref (f->data);
 152                 g_slist_free (priv->filters);
 153                 priv->filters = NULL;
 154         }
 155
 156         G_OBJECT_CLASS (soup_session_parent_class)->dispose (object);
 157 }
 158
 159 static void
 160 finalize (GObject *object)
 161 {
 162         SoupSession *session = SOUP_SESSION (object);
 163         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 164
 165         soup_message_queue_destroy (session->queue);
 166
 167         g_mutex_free (priv->host_lock);
 168         g_hash_table_destroy (priv->hosts);
 169         g_hash_table_destroy (priv->conns);
 170
 171         if (priv->async_context)
 172                 g_main_context_unref (priv->async_context);
 173
 174         G_OBJECT_CLASS (soup_session_parent_class)->finalize (object);
 175 }
 176
 177 static void
 178 soup_session_class_init (SoupSessionClass *session_class)
 179 {
 180         GObjectClass *object_class = G_OBJECT_CLASS (session_class);
 181
 182         g_type_class_add_private (session_class, sizeof (SoupSessionPrivate));
 183
 184         /* virtual method definition */
 185         session_class->queue_message = queue_message;
 186         session_class->requeue_message = requeue_message;
 187         session_class->cancel_message = cancel_message;
 188
 189         /* virtual method override */
 190         object_class->dispose = dispose;
 191         object_class->finalize = finalize;
 192         object_class->set_property = set_property;
 193         object_class->get_property = get_property;
 194
 195         /* signals */
 196
 197         /**
 198          * SoupSession::authenticate:
 199          * @session: the session
 200          * @msg: the #SoupMessage being sent
 201          * @auth_type: the authentication type
 202          * @auth_realm: the realm being authenticated to
 203          * @username: the signal handler should set this to point to
 204          * the provided username
 205          * @password: the signal handler should set this to point to
 206          * the provided password
 207          *
 208          * Emitted when the session requires authentication. The
 209          * credentials may come from the user, or from cached
 210          * information. If no credentials are available, leave
 211          * @username and @password unchanged.
 212          *
 213          * If the provided credentials fail, the #reauthenticate
 214          * signal will be emitted.
 215          **/
 216         signals[AUTHENTICATE] =
 217                 g_signal_new ("authenticate",
 218                               G_OBJECT_CLASS_TYPE (object_class),
 219                               G_SIGNAL_RUN_FIRST,
 220                               G_STRUCT_OFFSET (SoupSessionClass, authenticate),
 221                               NULL, NULL,
 222                               soup_marshal_NONE__OBJECT_STRING_STRING_POINTER_POINTER,
 223                               G_TYPE_NONE, 5,
 224                               SOUP_TYPE_MESSAGE,
 225                               G_TYPE_STRING,
 226                               G_TYPE_STRING,
 227                               G_TYPE_POINTER,
 228                               G_TYPE_POINTER);
 229
 230         /**
 231          * SoupSession::reauthenticate:
 232          * @session: the session
 233          * @msg: the #SoupMessage being sent
 234          * @auth_type: the authentication type
 235          * @auth_realm: the realm being authenticated to
 236          * @username: the signal handler should set this to point to
 237          * the provided username
 238          * @password: the signal handler should set this to point to
 239          * the provided password
 240          *
 241          * Emitted when the credentials provided by the application to
 242          * the #authenticate signal have failed. This gives the
 243          * application a second chance to provide authentication
 244          * credentials. If the new credentials also fail, #SoupSession
 245          * will emit #reauthenticate again, and will continue doing so
 246          * until the provided credentials work, or a #reauthenticate
 247          * signal emission "fails" (because the handler left @username
 248          * and @password unchanged). At that point, the 401 or 407
 249          * error status will be returned to the caller.
 250          *
 251          * If your application only uses cached passwords, it should
 252          * only connect to #authenticate, and not #reauthenticate.
 253          *
 254          * If your application always prompts the user for a password,
 255          * and never uses cached information, then you can connect the
 256          * same handler to #authenticate and #reauthenticate.
 257          *
 258          * To get standard web-browser behavior, return either cached
 259          * information or a user-provided password (whichever is
 260          * available) from the #authenticate handler, but return only
 261          * user-provided information from the #reauthenticate handler.
 262          **/
 263         signals[REAUTHENTICATE] =
 264                 g_signal_new ("reauthenticate",
 265                               G_OBJECT_CLASS_TYPE (object_class),
 266                               G_SIGNAL_RUN_FIRST,
 267                               G_STRUCT_OFFSET (SoupSessionClass, reauthenticate),
 268                               NULL, NULL,
 269                               soup_marshal_NONE__OBJECT_STRING_STRING_POINTER_POINTER,
 270                               G_TYPE_NONE, 5,
 271                               SOUP_TYPE_MESSAGE,
 272                               G_TYPE_STRING,
 273                               G_TYPE_STRING,
 274                               G_TYPE_POINTER,
 275                               G_TYPE_POINTER);
 276
 277         /* properties */
 278         g_object_class_install_property (
 279                 object_class, PROP_PROXY_URI,
 280                 g_param_spec_pointer (SOUP_SESSION_PROXY_URI,
 281                                       "Proxy URI",
 282                                       "The HTTP Proxy to use for this session",
 283                                       G_PARAM_READWRITE));
 284         g_object_class_install_property (
 285                 object_class, PROP_MAX_CONNS,
 286                 g_param_spec_int (SOUP_SESSION_MAX_CONNS,
 287                                   "Max Connection Count",
 288                                   "The maximum number of connections that the session can open at once",
 289                                   1,
 290                                   G_MAXINT,
 291                                   10,
 292                                   G_PARAM_READWRITE));
 293         g_object_class_install_property (
 294                 object_class, PROP_MAX_CONNS_PER_HOST,
 295                 g_param_spec_int (SOUP_SESSION_MAX_CONNS_PER_HOST,
 296                                   "Max Per-Host Connection Count",
 297                                   "The maximum number of connections that the session can open at once to a given host",
 298                                   1,
 299                                   G_MAXINT,
 300                                   4,
 301                                   G_PARAM_READWRITE));
 302         g_object_class_install_property (
 303                 object_class, PROP_USE_NTLM,
 304                 g_param_spec_boolean (SOUP_SESSION_USE_NTLM,
 305                                       "Use NTLM",
 306                                       "Whether or not to use NTLM authentication",
 307                                       FALSE,
 308                                       G_PARAM_READWRITE));
 309         g_object_class_install_property (
 310                 object_class, PROP_SSL_CA_FILE,
 311                 g_param_spec_string (SOUP_SESSION_SSL_CA_FILE,
 312                                      "SSL CA file",
 313                                      "File containing SSL CA certificates",
 314                                      NULL,
 315                                      G_PARAM_READWRITE));
 316         g_object_class_install_property (
 317                 object_class, PROP_ASYNC_CONTEXT,
 318                 g_param_spec_pointer (SOUP_SESSION_ASYNC_CONTEXT,
 319                                       "Async GMainContext",
 320                                       "The GMainContext to dispatch async I/O in",
 321                                       G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 322 }
 323
 324 static void
 325 filter_iface_init (SoupMessageFilterClass *filter_class)
 326 {
 327         /* interface implementation */
 328         filter_class->setup_message = setup_message;
 329 }
 330
 331
 332 static gboolean
 333 safe_uri_equal (const SoupUri *a, const SoupUri *b)
 334 {
 335         if (!a && !b)
 336                 return TRUE;
 337
 338         if ((a && !b) || (b && !a))
 339                 return FALSE;
 340
 341         return soup_uri_equal (a, b);
 342 }
 343
 344 static gboolean
 345 safe_str_equal (const char *a, const char *b)
 346 {
 347         if (!a && !b)
 348                 return TRUE;
 349
 350         if ((a && !b) || (b && !a))
 351                 return FALSE;
 352
 353         return strcmp (a, b) == 0;
 354 }
 355
 356 static void
 357 set_property (GObject *object, guint prop_id,
 358               const GValue *value, GParamSpec *pspec)
 359 {
 360         SoupSession *session = SOUP_SESSION (object);
 361         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 362         gpointer pval;
 363         gboolean need_abort = FALSE;
 364         gboolean ca_file_changed = FALSE;
 365         const char *new_ca_file;
 366
 367         switch (prop_id) {
 368         case PROP_PROXY_URI:
 369                 pval = g_value_get_pointer (value);
 370
 371                 if (!safe_uri_equal (priv->proxy_uri, pval))
 372                         need_abort = TRUE;
 373
 374                 if (priv->proxy_uri)
 375                         soup_uri_free (priv->proxy_uri);
 376
 377                 priv->proxy_uri = pval ? soup_uri_copy (pval) : NULL;
 378
 379                 if (need_abort) {
 380                         soup_session_abort (session);
 381                         cleanup_hosts (priv);
 382                 }
 383
 384                 break;
 385         case PROP_MAX_CONNS:
 386                 priv->max_conns = g_value_get_int (value);
 387                 break;
 388         case PROP_MAX_CONNS_PER_HOST:
 389                 priv->max_conns_per_host = g_value_get_int (value);
 390                 break;
 391         case PROP_USE_NTLM:
 392                 priv->use_ntlm = g_value_get_boolean (value);
 393                 break;
 394         case PROP_SSL_CA_FILE:
 395                 new_ca_file = g_value_get_string (value);
 396
 397                 if (!safe_str_equal (priv->ssl_ca_file, new_ca_file))
 398                         ca_file_changed = TRUE;
 399
 400                 g_free (priv->ssl_ca_file);
 401                 priv->ssl_ca_file = g_strdup (new_ca_file);
 402
 403                 if (ca_file_changed) {
 404                         if (priv->ssl_creds) {
 405                                 soup_ssl_free_client_credentials (priv->ssl_creds);
 406                                 priv->ssl_creds = NULL;
 407                         }
 408
 409                         cleanup_hosts (priv);
 410                 }
 411
 412                 break;
 413         case PROP_ASYNC_CONTEXT:
 414                 priv->async_context = g_value_get_pointer (value);
 415                 if (priv->async_context)
 416                         g_main_context_ref (priv->async_context);
 417                 break;
 418         default:
 419                 break;
 420         }
 421 }
 422
 423 static void
 424 get_property (GObject *object, guint prop_id,
 425               GValue *value, GParamSpec *pspec)
 426 {
 427         SoupSession *session = SOUP_SESSION (object);
 428         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 429
 430         switch (prop_id) {
 431         case PROP_PROXY_URI:
 432                 g_value_set_pointer (value, priv->proxy_uri ?
 433                                      soup_uri_copy (priv->proxy_uri) :
 434                                      NULL);
 435                 break;
 436         case PROP_MAX_CONNS:
 437                 g_value_set_int (value, priv->max_conns);
 438                 break;
 439         case PROP_MAX_CONNS_PER_HOST:
 440                 g_value_set_int (value, priv->max_conns_per_host);
 441                 break;
 442         case PROP_USE_NTLM:
 443                 g_value_set_boolean (value, priv->use_ntlm);
 444                 break;
 445         case PROP_SSL_CA_FILE:
 446                 g_value_set_string (value, priv->ssl_ca_file);
 447                 break;
 448         case PROP_ASYNC_CONTEXT:
 449                 g_value_set_pointer (value, priv->async_context ? g_main_context_ref (priv->async_context) : NULL);
 450                 break;
 451         default:
 452                 break;
 453         }
 454 }
 455
 456
 457 /**
 458  * soup_session_add_filter:
 459  * @session: a #SoupSession
 460  * @filter: an object implementing the #SoupMessageFilter interface
 461  *
 462  * Adds @filter to @session's list of message filters to be applied to
 463  * all messages.
 464  **/
 465 void
 466 soup_session_add_filter (SoupSession *session, SoupMessageFilter *filter)
 467 {
 468         SoupSessionPrivate *priv;
 469
 470         g_return_if_fail (SOUP_IS_SESSION (session));
 471         g_return_if_fail (SOUP_IS_MESSAGE_FILTER (filter));
 472         priv = SOUP_SESSION_GET_PRIVATE (session);
 473
 474         g_object_ref (filter);
 475         priv->filters = g_slist_prepend (priv->filters, filter);
 476 }
 477
 478 /**
 479  * soup_session_remove_filter:
 480  * @session: a #SoupSession
 481  * @filter: an object implementing the #SoupMessageFilter interface
 482  *
 483  * Removes @filter from @session's list of message filters
 484  **/
 485 void
 486 soup_session_remove_filter (SoupSession *session, SoupMessageFilter *filter)
 487 {
 488         SoupSessionPrivate *priv;
 489
 490         g_return_if_fail (SOUP_IS_SESSION (session));
 491         g_return_if_fail (SOUP_IS_MESSAGE_FILTER (filter));
 492         priv = SOUP_SESSION_GET_PRIVATE (session);
 493
 494         priv->filters = g_slist_remove (priv->filters, filter);
 495         g_object_unref (filter);
 496 }
 497
 498
 499 /* Hosts */
 500 static guint
 501 host_uri_hash (gconstpointer key)
 502 {
 503         const SoupUri *uri = key;
 504
 505         return (uri->protocol << 16) + uri->port + g_str_hash (uri->host);
 506 }
 507
 508 static gboolean
 509 host_uri_equal (gconstpointer v1, gconstpointer v2)
 510 {
 511         const SoupUri *one = v1;
 512         const SoupUri *two = v2;
 513
 514         if (one->protocol != two->protocol)
 515                 return FALSE;
 516         if (one->port != two->port)
 517                 return FALSE;
 518
 519         return strcmp (one->host, two->host) == 0;
 520 }
 521
 522 static SoupSessionHost *
 523 soup_session_host_new (SoupSession *session, const SoupUri *source_uri)
 524 {
 525         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 526         SoupSessionHost *host;
 527
 528         host = g_new0 (SoupSessionHost, 1);
 529         host->root_uri = soup_uri_copy_root (source_uri);
 530
 531         if (host->root_uri->protocol == SOUP_PROTOCOL_HTTPS &&
 532             !priv->ssl_creds) {
 533                 priv->ssl_creds =
 534                         soup_ssl_get_client_credentials (priv->ssl_ca_file);
 535         }
 536
 537         return host;
 538 }
 539
 540 /* Note: get_host_for_message doesn't lock the host_lock. The caller
 541  * must do it itself if there's a chance the host doesn't already
 542  * exist.
 543  */
 544 static SoupSessionHost *
 545 get_host_for_message (SoupSession *session, SoupMessage *msg)
 546 {
 547         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 548         SoupSessionHost *host;
 549         const SoupUri *source = soup_message_get_uri (msg);
 550
 551         host = g_hash_table_lookup (priv->hosts, source);
 552         if (host)
 553                 return host;
 554
 555         host = soup_session_host_new (session, source);
 556         g_hash_table_insert (priv->hosts, host->root_uri, host);
 557
 558         return host;
 559 }
 560
 561 /* Note: get_proxy_host doesn't lock the host_lock. The caller must do
 562  * it itself if there's a chance the host doesn't already exist.
 563  */
 564 static SoupSessionHost *
 565 get_proxy_host (SoupSession *session)
 566 {
 567         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 568
 569         if (priv->proxy_host || !priv->proxy_uri)
 570                 return priv->proxy_host;
 571
 572         priv->proxy_host =
 573                 soup_session_host_new (session, priv->proxy_uri);
 574         return priv->proxy_host;
 575 }
 576
 577 static void
 578 free_realm (gpointer path, gpointer scheme_realm, gpointer data)
 579 {
 580         g_free (path);
 581         g_free (scheme_realm);
 582 }
 583
 584 static void
 585 free_auth (gpointer scheme_realm, gpointer auth, gpointer data)
 586 {
 587         g_free (scheme_realm);
 588         g_object_unref (auth);
 589 }
 590
 591 static void
 592 free_host (SoupSessionHost *host)
 593 {
 594         while (host->connections) {
 595                 SoupConnection *conn = host->connections->data;
 596
 597                 host->connections = g_slist_remove (host->connections, conn);
 598                 soup_connection_disconnect (conn);
 599         }
 600
 601         if (host->auth_realms) {
 602                 g_hash_table_foreach (host->auth_realms, free_realm, NULL);
 603                 g_hash_table_destroy (host->auth_realms);
 604         }
 605         if (host->auths) {
 606                 g_hash_table_foreach (host->auths, free_auth, NULL);
 607                 g_hash_table_destroy (host->auths);
 608         }
 609
 610         soup_uri_free (host->root_uri);
 611         g_free (host);
 612 }
 613
 614 /* Authentication */
 615
 616 static SoupAuth *
 617 lookup_auth (SoupSession *session, SoupMessage *msg, gboolean proxy)
 618 {
 619         SoupSessionHost *host;
 620         char *path, *dir;
 621         const char *realm, *const_path;
 622
 623         if (proxy) {
 624                 host = get_proxy_host (session);
 625                 const_path = "/";
 626         } else {
 627                 host = get_host_for_message (session, msg);
 628                 const_path = soup_message_get_uri (msg)->path;
 629
 630                 if (!const_path)
 631                         const_path = "/";
 632         }
 633         g_return_val_if_fail (host != NULL, NULL);
 634
 635         if (!host->auth_realms)
 636                 return NULL;
 637
 638         path = g_strdup (const_path);
 639         dir = path;
 640         do {
 641                 realm = g_hash_table_lookup (host->auth_realms, path);
 642                 if (realm)
 643                         break;
 644
 645                 dir = strrchr (path, '/');
 646                 if (dir)
 647                         *dir = '\0';
 648         } while (dir);
 649
 650         g_free (path);
 651         if (realm)
 652                 return g_hash_table_lookup (host->auths, realm);
 653         else
 654                 return NULL;
 655 }
 656
 657 static void
 658 invalidate_auth (SoupSessionHost *host, SoupAuth *auth)
 659 {
 660         char *realm;
 661         gpointer key, value;
 662
 663         realm = g_strdup_printf ("%s:%s",
 664                                  soup_auth_get_scheme_name (auth),
 665                                  soup_auth_get_realm (auth));
 666
 667         if (g_hash_table_lookup_extended (host->auths, realm, &key, &value) &&
 668             auth == (SoupAuth *)value) {
 669                 g_hash_table_remove (host->auths, realm);
 670                 g_free (key);
 671                 g_object_unref (auth);
 672         }
 673         g_free (realm);
 674 }
 675
 676 static gboolean
 677 authenticate_auth (SoupSession *session, SoupAuth *auth,
 678                    SoupMessage *msg, gboolean prior_auth_failed,
 679                    gboolean proxy)
 680 {
 681         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 682         const SoupUri *uri;
 683         char *username = NULL, *password = NULL;
 684
 685         if (proxy)
 686                 uri = priv->proxy_uri;
 687         else
 688                 uri = soup_message_get_uri (msg);
 689
 690         if (uri->passwd && !prior_auth_failed) {
 691                 soup_auth_authenticate (auth, uri->user, uri->passwd);
 692                 return TRUE;
 693         }
 694
 695         g_signal_emit (session, signals[prior_auth_failed ? REAUTHENTICATE : AUTHENTICATE], 0,
 696                        msg, soup_auth_get_scheme_name (auth),
 697                        soup_auth_get_realm (auth),
 698                        &username, &password);
 699         if (username || password)
 700                 soup_auth_authenticate (auth, username, password);
 701         if (username)
 702                 g_free (username);
 703         if (password) {
 704                 memset (password, 0, strlen (password));
 705                 g_free (password);
 706         }
 707
 708         return soup_auth_is_authenticated (auth);
 709 }
 710
 711 static gboolean
 712 update_auth_internal (SoupSession *session, SoupMessage *msg,
 713                       const GSList *headers, gboolean proxy,
 714                       gboolean got_unauthorized)
 715 {
 716         SoupSessionHost *host;
 717         SoupAuth *new_auth, *prior_auth, *old_auth;
 718         gpointer old_path, old_realm;
 719         const SoupUri *msg_uri;
 720         const char *path;
 721         char *realm;
 722         GSList *pspace, *p;
 723         gboolean prior_auth_failed = FALSE;
 724
 725         if (proxy)
 726                 host = get_proxy_host (session);
 727         else
 728                 host = get_host_for_message (session, msg);
 729
 730         g_return_val_if_fail (host != NULL, FALSE);
 731
 732         /* Try to construct a new auth from the headers; if we can't,
 733          * there's no way we'll be able to authenticate.
 734          */
 735         msg_uri = soup_message_get_uri (msg);
 736         new_auth = soup_auth_new_from_header_list (headers);
 737         if (!new_auth)
 738                 return FALSE;
 739
 740         /* See if this auth is the same auth we used last time */
 741         prior_auth = lookup_auth (session, msg, proxy);
 742         if (prior_auth &&
 743             G_OBJECT_TYPE (prior_auth) == G_OBJECT_TYPE (new_auth) &&
 744             !strcmp (soup_auth_get_realm (prior_auth),
 745                      soup_auth_get_realm (new_auth))) {
 746                 if (!got_unauthorized) {
 747                         /* The user is just trying to preauthenticate
 748                          * using information we already have, so
 749                          * there's nothing more that needs to be done.
 750                          */
 751                         g_object_unref (new_auth);
 752                         return TRUE;
 753                 }
 754
 755                 /* The server didn't like the username/password we
 756                  * provided before. Invalidate it and note this fact.
 757                  */
 758                 invalidate_auth (host, prior_auth);
 759                 prior_auth_failed = TRUE;
 760         }
 761
 762         if (!host->auth_realms) {
 763                 host->auth_realms = g_hash_table_new (g_str_hash, g_str_equal);
 764                 host->auths = g_hash_table_new (g_str_hash, g_str_equal);
 765         }
 766
 767         /* Record where this auth realm is used */
 768         realm = g_strdup_printf ("%s:%s",
 769                                  soup_auth_get_scheme_name (new_auth),
 770                                  soup_auth_get_realm (new_auth));
 771
 772         /*
 773          * RFC 2617 is somewhat unclear about the scope of protection
 774          * spaces with regard to proxies.  The only mention of it is
 775          * as an aside in section 3.2.1, where it is defining the fields
 776          * of a Digest challenge and says that the protection space is
 777          * always the entire proxy.  Is this the case for all authentication
 778          * schemes or just Digest?  Who knows, but we're assuming all.
 779          */
 780         if (proxy)
 781                 pspace = g_slist_prepend (NULL, g_strdup (""));
 782         else
 783                 pspace = soup_auth_get_protection_space (new_auth, msg_uri);
 784
 785         for (p = pspace; p; p = p->next) {
 786                 path = p->data;
 787                 if (g_hash_table_lookup_extended (host->auth_realms, path,
 788                                                   &old_path, &old_realm)) {
 789                         g_hash_table_remove (host->auth_realms, old_path);
 790                         g_free (old_path);
 791                         g_free (old_realm);
 792                 }
 793
 794                 g_hash_table_insert (host->auth_realms,
 795                                      g_strdup (path), g_strdup (realm));
 796         }
 797         soup_auth_free_protection_space (new_auth, pspace);
 798
 799         /* Now, make sure the auth is recorded. (If there's a
 800          * pre-existing auth, we keep that rather than the new one,
 801          * since the old one might already be authenticated.)
 802          */
 803         old_auth = g_hash_table_lookup (host->auths, realm);
 804         if (old_auth) {
 805                 g_free (realm);
 806                 g_object_unref (new_auth);
 807                 new_auth = old_auth;
 808         } else
 809                 g_hash_table_insert (host->auths, realm, new_auth);
 810
 811         /* If we need to authenticate, try to do it. */
 812         if (!soup_auth_is_authenticated (new_auth)) {
 813                 return authenticate_auth (session, new_auth,
 814                                           msg, prior_auth_failed, proxy);
 815         }
 816
 817         /* Otherwise we're good. */
 818         return TRUE;
 819 }
 820
 821 static void
 822 connection_authenticate (SoupConnection *conn, SoupMessage *msg,
 823                          const char *auth_type, const char *auth_realm,
 824                          char **username, char **password, gpointer session)
 825 {
 826         g_signal_emit (session, signals[AUTHENTICATE], 0,
 827                        msg, auth_type, auth_realm, username, password);
 828 }
 829
 830 static void
 831 connection_reauthenticate (SoupConnection *conn, SoupMessage *msg,
 832                            const char *auth_type, const char *auth_realm,
 833                            char **username, char **password,
 834                            gpointer user_data)
 835 {
 836         g_signal_emit (conn, signals[REAUTHENTICATE], 0,
 837                        msg, auth_type, auth_realm, username, password);
 838 }
 839
 840
 841 static void
 842 authorize_handler (SoupMessage *msg, gpointer user_data)
 843 {
 844         SoupSession *session = user_data;
 845         const GSList *headers;
 846         gboolean proxy;
 847
 848         if (msg->status_code == SOUP_STATUS_PROXY_AUTHENTICATION_REQUIRED) {
 849                 headers = soup_message_get_header_list (msg->response_headers,
 850                                                         "Proxy-Authenticate");
 851                 proxy = TRUE;
 852         } else {
 853                 headers = soup_message_get_header_list (msg->response_headers,
 854                                                         "WWW-Authenticate");
 855                 proxy = FALSE;
 856         }
 857         if (!headers)
 858                 return;
 859
 860         if (update_auth_internal (session, msg, headers, proxy, TRUE))
 861                 soup_session_requeue_message (session, msg);
 862 }
 863
 864 static void
 865 redirect_handler (SoupMessage *msg, gpointer user_data)
 866 {
 867         SoupSession *session = user_data;
 868         const char *new_loc;
 869         SoupUri *new_uri;
 870
 871         new_loc = soup_message_get_header (msg->response_headers, "Location");
 872         if (!new_loc)
 873                 return;
 874
 875         /* Location is supposed to be an absolute URI, but some sites
 876          * are lame, so we use soup_uri_new_with_base().
 877          */
 878         new_uri = soup_uri_new_with_base (soup_message_get_uri (msg), new_loc);
 879         if (!new_uri) {
 880                 soup_message_set_status_full (msg,
 881                                               SOUP_STATUS_MALFORMED,
 882                                               "Invalid Redirect URL");
 883                 return;
 884         }
 885
 886         soup_message_set_uri (msg, new_uri);
 887         soup_uri_free (new_uri);
 888
 889         soup_session_requeue_message (session, msg);
 890 }
 891
 892 static void
 893 add_auth (SoupSession *session, SoupMessage *msg, gboolean proxy)
 894 {
 895         const char *header = proxy ? "Proxy-Authorization" : "Authorization";
 896         SoupAuth *auth;
 897         char *token;
 898
 899         auth = lookup_auth (session, msg, proxy);
 900         if (!auth)
 901                 return;
 902         if (!soup_auth_is_authenticated (auth) &&
 903             !authenticate_auth (session, auth, msg, FALSE, proxy))
 904                 return;
 905
 906         token = soup_auth_get_authorization (auth, msg);
 907         if (token) {
 908                 soup_message_remove_header (msg->request_headers, header);
 909                 soup_message_add_header (msg->request_headers, header, token);
 910                 g_free (token);
 911         }
 912 }
 913
 914 static void
 915 setup_message (SoupMessageFilter *filter, SoupMessage *msg)
 916 {
 917         SoupSession *session = SOUP_SESSION (filter);
 918         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 919         GSList *f;
 920
 921         for (f = priv->filters; f; f = f->next) {
 922                 filter = f->data;
 923                 soup_message_filter_setup_message (filter, msg);
 924         }
 925
 926         add_auth (session, msg, FALSE);
 927         soup_message_add_status_code_handler (
 928                 msg, SOUP_STATUS_UNAUTHORIZED,
 929                 SOUP_HANDLER_POST_BODY,
 930                 authorize_handler, session);
 931
 932         if (priv->proxy_uri) {
 933                 add_auth (session, msg, TRUE);
 934                 soup_message_add_status_code_handler  (
 935                         msg, SOUP_STATUS_PROXY_UNAUTHORIZED,
 936                         SOUP_HANDLER_POST_BODY,
 937                         authorize_handler, session);
 938         }
 939 }
 940
 941 static void
 942 find_oldest_connection (gpointer key, gpointer host, gpointer data)
 943 {
 944         SoupConnection *conn = key, **oldest = data;
 945
 946         /* Don't prune a connection that is currently in use, or
 947          * hasn't been used yet.
 948          */
 949         if (soup_connection_is_in_use (conn) ||
 950             soup_connection_last_used (conn) == 0)
 951                 return;
 952
 953         if (!*oldest || (soup_connection_last_used (conn) <
 954                          soup_connection_last_used (*oldest)))
 955                 *oldest = conn;
 956 }
 957
 958 /**
 959  * soup_session_try_prune_connection:
 960  * @session: a #SoupSession
 961  *
 962  * Finds the least-recently-used idle connection in @session and closes
 963  * it.
 964  *
 965  * Return value: %TRUE if a connection was closed, %FALSE if there are
 966  * no idle connections.
 967  **/
 968 gboolean
 969 soup_session_try_prune_connection (SoupSession *session)
 970 {
 971         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 972         SoupConnection *oldest = NULL;
 973
 974         g_mutex_lock (priv->host_lock);
 975         g_hash_table_foreach (priv->conns, find_oldest_connection,
 976                               &oldest);
 977         if (oldest) {
 978                 /* Ref the connection before unlocking the mutex in
 979                  * case someone else tries to prune it too.
 980                  */
 981                 g_object_ref (oldest);
 982                 g_mutex_unlock (priv->host_lock);
 983                 soup_connection_disconnect (oldest);
 984                 g_object_unref (oldest);
 985                 return TRUE;
 986         } else {
 987                 g_mutex_unlock (priv->host_lock);
 988                 return FALSE;
 989         }
 990 }
 991
 992 static void
 993 connection_disconnected (SoupConnection *conn, gpointer user_data)
 994 {
 995         SoupSession *session = user_data;
 996         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 997         SoupSessionHost *host;
 998
 999         g_mutex_lock (priv->host_lock);
1000
1001         host = g_hash_table_lookup (priv->conns, conn);
1002         if (host) {
1003                 g_hash_table_remove (priv->conns, conn);
1004                 host->connections = g_slist_remove (host->connections, conn);
1005                 host->num_conns--;
1006         }
1007
1008         g_signal_handlers_disconnect_by_func (conn, connection_disconnected, session);
1009         priv->num_conns--;
1010
1011         g_mutex_unlock (priv->host_lock);
1012         g_object_unref (conn);
1013 }
1014
1015 static void
1016 connect_result (SoupConnection *conn, guint status, gpointer user_data)
1017 {
1018         SoupSession *session = user_data;
1019         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
1020         SoupSessionHost *host;
1021         SoupMessageQueueIter iter;
1022         SoupMessage *msg;
1023
1024         g_mutex_lock (priv->host_lock);
1025
1026         host = g_hash_table_lookup (priv->conns, conn);
1027         if (!host) {
1028                 g_mutex_unlock (priv->host_lock);
1029                 return;
1030         }
1031
1032         if (status == SOUP_STATUS_OK) {
1033                 soup_connection_reserve (conn);
1034                 host->connections = g_slist_prepend (host->connections, conn);
1035                 g_mutex_unlock (priv->host_lock);
1036                 return;
1037         }
1038
1039         /* The connection failed. */
1040         g_mutex_unlock (priv->host_lock);
1041         connection_disconnected (conn, session);
1042
1043         if (host->connections) {
1044                 /* Something went wrong this time, but we have at
1045                  * least one open connection to this host. So just
1046                  * leave the message in the queue so it can use that
1047                  * connection once it's free.
1048                  */
1049                 return;
1050         }
1051
1052         /* There are two possibilities: either status is
1053          * SOUP_STATUS_TRY_AGAIN, in which case the session implementation
1054          * will create a new connection (and all we need to do here
1055          * is downgrade the message from CONNECTING to QUEUED); or
1056          * status is something else, probably CANT_CONNECT or
1057          * CANT_RESOLVE or the like, in which case we need to cancel
1058          * any messages waiting for this host, since they're out
1059          * of luck.
1060          */
1061         for (msg = soup_message_queue_first (session->queue, &iter); msg; msg = soup_message_queue_next (session->queue, &iter)) {
1062                 if (get_host_for_message (session, msg) == host) {
1063                         if (status == SOUP_STATUS_TRY_AGAIN) {
1064                                 if (msg->status == SOUP_MESSAGE_STATUS_CONNECTING)
1065                                         msg->status = SOUP_MESSAGE_STATUS_QUEUED;
1066                         } else {
1067                                 soup_message_set_status (msg, status);
1068                                 soup_session_cancel_message (session, msg);
1069                         }
1070                 }
1071         }
1072 }
1073
1074 /**
1075  * soup_session_get_connection:
1076  * @session: a #SoupSession
1077  * @msg: a #SoupMessage
1078  * @try_pruning: on return, whether or not to try pruning a connection
1079  * @is_new: on return, %TRUE if the returned connection is new and not
1080  * yet connected
1081  *
1082  * Tries to find or create a connection for @msg; this is an internal
1083  * method for #SoupSession subclasses.
1084  *
1085  * If there is an idle connection to the relevant host available, then
1086  * that connection will be returned (with *@is_new set to %FALSE). The
1087  * connection will be marked "reserved", so the caller must call
1088  * soup_connection_release() if it ends up not using the connection
1089  * right away.
1090  *
1091  * If there is no idle connection available, but it is possible to
1092  * create a new connection, then one will be created and returned,
1093  * with *@is_new set to %TRUE. The caller MUST then call
1094  * soup_connection_connect_sync() or soup_connection_connect_async()
1095  * to connect it. If the connection attempt succeeds, the connection
1096  * will be marked "reserved" and added to @session's connection pool
1097  * once it connects. If the connection attempt fails, the connection
1098  * will be unreffed.
1099  *
1100  * If no connection is available and a new connection cannot be made,
1101  * soup_session_get_connection() will return %NULL. If @session has
1102  * the maximum number of open connections open, but does not have the
1103  * maximum number of per-host connections open to the relevant host,
1104  * then *@try_pruning will be set to %TRUE. In this case, the caller
1105  * can call soup_session_try_prune_connection() to close an idle
1106  * connection, and then try soup_session_get_connection() again. (If
1107  * calling soup_session_try_prune_connection() wouldn't help, then
1108  * *@try_pruning is left untouched; it is NOT set to %FALSE.)
1109  *
1110  * Return value: a #SoupConnection, or %NULL
1111  **/
1112 SoupConnection *
1113 soup_session_get_connection (SoupSession *session, SoupMessage *msg,
1114                              gboolean *try_pruning, gboolean *is_new)
1115 {
1116         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
1117         SoupConnection *conn;
1118         SoupSessionHost *host;
1119         GSList *conns;
1120
1121         g_mutex_lock (priv->host_lock);
1122
1123         host = get_host_for_message (session, msg);
1124         for (conns = host->connections; conns; conns = conns->next) {
1125                 if (!soup_connection_is_in_use (conns->data)) {
1126                         soup_connection_reserve (conns->data);
1127                         g_mutex_unlock (priv->host_lock);
1128                         *is_new = FALSE;
1129                         return conns->data;
1130                 }
1131         }
1132
1133         if (msg->status == SOUP_MESSAGE_STATUS_CONNECTING) {
1134                 /* We already started a connection for this
1135                  * message, so don't start another one.
1136                  */
1137                 g_mutex_unlock (priv->host_lock);
1138                 return NULL;
1139         }
1140
1141         if (host->num_conns >= priv->max_conns_per_host) {
1142                 g_mutex_unlock (priv->host_lock);
1143                 return NULL;
1144         }
1145
1146         if (priv->num_conns >= priv->max_conns) {
1147                 *try_pruning = TRUE;
1148                 g_mutex_unlock (priv->host_lock);
1149                 return NULL;
1150         }
1151
1152         /* Make sure priv->proxy_host gets set now while
1153          * we have the host_lock.
1154          */
1155         if (priv->proxy_uri)
1156                 get_proxy_host (session);
1157
1158         conn = g_object_new (
1159                 (priv->use_ntlm ?
1160                  SOUP_TYPE_CONNECTION_NTLM : SOUP_TYPE_CONNECTION),
1161                 SOUP_CONNECTION_ORIGIN_URI, host->root_uri,
1162                 SOUP_CONNECTION_PROXY_URI, priv->proxy_uri,
1163                 SOUP_CONNECTION_SSL_CREDENTIALS, priv->ssl_creds,
1164                 SOUP_CONNECTION_MESSAGE_FILTER, session,
1165                 SOUP_CONNECTION_ASYNC_CONTEXT, priv->async_context,
1166                 NULL);
1167         g_signal_connect (conn, "connect_result",
1168                           G_CALLBACK (connect_result),
1169                           session);
1170         g_signal_connect (conn, "disconnected",
1171                           G_CALLBACK (connection_disconnected),
1172                           session);
1173         g_signal_connect (conn, "authenticate",
1174                           G_CALLBACK (connection_authenticate),
1175                           session);
1176         g_signal_connect (conn, "reauthenticate",
1177                           G_CALLBACK (connection_reauthenticate),
1178                           session);
1179
1180         g_hash_table_insert (priv->conns, conn, host);
1181
1182         /* We increment the connection counts so it counts against the
1183          * totals, but we don't add it to the host's connection list
1184          * yet, since it's not ready for use.
1185          */
1186         priv->num_conns++;
1187         host->num_conns++;
1188
1189         /* Mark the request as connecting, so we don't try to open
1190          * another new connection for it while waiting for this one.
1191          */
1192         msg->status = SOUP_MESSAGE_STATUS_CONNECTING;
1193
1194         g_mutex_unlock (priv->host_lock);
1195         *is_new = TRUE;
1196         return conn;
1197 }
1198
1199 static void
1200 message_finished (SoupMessage *msg, gpointer user_data)
1201 {
1202         SoupSession *session = user_data;
1203
1204         if (!SOUP_MESSAGE_IS_STARTING (msg)) {
1205                 soup_message_queue_remove_message (session->queue, msg);
1206                 g_signal_handlers_disconnect_by_func (msg, message_finished, session);
1207         }
1208 }
1209
1210 static void
1211 queue_message (SoupSession *session, SoupMessage *msg,
1212                SoupMessageCallbackFn callback, gpointer user_data)
1213 {
1214         g_signal_connect_after (msg, "finished",
1215                                 G_CALLBACK (message_finished), session);
1216
1217         if (!(soup_message_get_flags (msg) & SOUP_MESSAGE_NO_REDIRECT)) {
1218                 soup_message_add_status_class_handler (
1219                         msg, SOUP_STATUS_CLASS_REDIRECT,
1220                         SOUP_HANDLER_POST_BODY,
1221                         redirect_handler, session);
1222         }
1223
1224         msg->status = SOUP_MESSAGE_STATUS_QUEUED;
1225         soup_message_queue_append (session->queue, msg);
1226 }
1227
1228 /**
1229  * soup_session_queue_message:
1230  * @session: a #SoupSession
1231  * @msg: the message to queue
1232  * @callback: a #SoupMessageCallbackFn which will be called after the
1233  * message completes or when an unrecoverable error occurs.
1234  * @user_data: a pointer passed to @callback.
1235  *
1236  * Queues the message @msg for sending. All messages are processed
1237  * while the glib main loop runs. If @msg has been processed before,
1238  * any resources related to the time it was last sent are freed.
1239  *
1240  * Upon message completion, the callback specified in @callback will
1241  * be invoked. If after returning from this callback the message has
1242  * not been requeued, @msg will be unreffed.
1243  */
1244 void
1245 soup_session_queue_message (SoupSession *session, SoupMessage *msg,
1246                             SoupMessageCallbackFn callback, gpointer user_data)
1247 {
1248         g_return_if_fail (SOUP_IS_SESSION (session));
1249         g_return_if_fail (SOUP_IS_MESSAGE (msg));
1250
1251         SOUP_SESSION_GET_CLASS (session)->queue_message (session, msg,
1252                                                          callback, user_data);
1253 }
1254
1255 static void
1256 requeue_message (SoupSession *session, SoupMessage *msg)
1257 {
1258         msg->status = SOUP_MESSAGE_STATUS_QUEUED;
1259 }
1260
1261 /**
1262  * soup_session_requeue_message:
1263  * @session: a #SoupSession
1264  * @msg: the message to requeue
1265  *
1266  * This causes @msg to be placed back on the queue to be attempted
1267  * again.
1268  **/
1269 void
1270 soup_session_requeue_message (SoupSession *session, SoupMessage *msg)
1271 {
1272         g_return_if_fail (SOUP_IS_SESSION (session));
1273         g_return_if_fail (SOUP_IS_MESSAGE (msg));
1274
1275         SOUP_SESSION_GET_CLASS (session)->requeue_message (session, msg);
1276 }
1277
1278
1279 /**
1280  * soup_session_send_message:
1281  * @session: a #SoupSession
1282  * @msg: the message to send
1283  *
1284  * Synchronously send @msg. This call will not return until the
1285  * transfer is finished successfully or there is an unrecoverable
1286  * error.
1287  *
1288  * @msg is not freed upon return.
1289  *
1290  * Return value: the HTTP status code of the response
1291  */
1292 guint
1293 soup_session_send_message (SoupSession *session, SoupMessage *msg)
1294 {
1295         g_return_val_if_fail (SOUP_IS_SESSION (session), SOUP_STATUS_MALFORMED);
1296         g_return_val_if_fail (SOUP_IS_MESSAGE (msg), SOUP_STATUS_MALFORMED);
1297
1298         return SOUP_SESSION_GET_CLASS (session)->send_message (session, msg);
1299 }
1300
1301
1302 static void
1303 cancel_message (SoupSession *session, SoupMessage *msg)
1304 {
1305         soup_message_queue_remove_message (session->queue, msg);
1306         soup_message_finished (msg);
1307 }
1308
1309 /**
1310  * soup_session_cancel_message:
1311  * @session: a #SoupSession
1312  * @msg: the message to cancel
1313  *
1314  * Causes @session to immediately finish processing @msg. You should
1315  * set a status code on @msg with soup_message_set_status() before
1316  * calling this function.
1317  **/
1318 void
1319 soup_session_cancel_message (SoupSession *session, SoupMessage *msg)
1320 {
1321         g_return_if_fail (SOUP_IS_SESSION (session));
1322         g_return_if_fail (SOUP_IS_MESSAGE (msg));
1323
1324         SOUP_SESSION_GET_CLASS (session)->cancel_message (session, msg);
1325 }
1326
1327 /**
1328  * soup_session_abort:
1329  * @session: the session
1330  *
1331  * Cancels all pending requests in @session.
1332  **/
1333 void
1334 soup_session_abort (SoupSession *session)
1335 {
1336         SoupMessageQueueIter iter;
1337         SoupMessage *msg;
1338
1339         g_return_if_fail (SOUP_IS_SESSION (session));
1340
1341         for (msg = soup_message_queue_first (session->queue, &iter); msg; msg = soup_message_queue_next (session->queue, &iter)) {
1342                 soup_message_set_status (msg, SOUP_STATUS_CANCELLED);
1343                 soup_session_cancel_message (session, msg);
1344         }
1345 }