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-private.h"
  23 #include "soup-message-queue.h"
  24 #include "soup-ssl.h"
  25 #include "soup-uri.h"
  26
  27 typedef struct {
  28         SoupUri    *root_uri;
  29
  30         GSList     *connections;      /* CONTAINS: SoupConnection */
  31         guint       num_conns;
  32
  33         GHashTable *auth_realms;      /* path -> scheme:realm */
  34         GHashTable *auths;            /* scheme:realm -> SoupAuth */
  35 } SoupSessionHost;
  36
  37 typedef struct {
  38         SoupUri *proxy_uri;
  39         guint max_conns, max_conns_per_host;
  40         gboolean use_ntlm;
  41
  42         char *ssl_ca_file;
  43         SoupSSLCredentials *ssl_creds;
  44
  45         GSList *filters;
  46
  47         GHashTable *hosts; /* SoupUri -> SoupSessionHost */
  48         GHashTable *conns; /* SoupConnection -> SoupSessionHost */
  49         guint num_conns;
  50
  51         SoupSessionHost *proxy_host;
  52
  53         /* Must hold the host_lock before potentially creating a
  54          * new SoupSessionHost, or adding/removing a connection.
  55          * Must not emit signals or destroy objects while holding it.
  56          */
  57         GMutex *host_lock;
  58
  59         GMainContext *async_context;
  60
  61         /* Holds the timeout value for the connection, when
  62            no response is received.
  63         */
  64         guint timeout;
  65 } SoupSessionPrivate;
  66 #define SOUP_SESSION_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), SOUP_TYPE_SESSION, SoupSessionPrivate))
  67
  68 static guint    host_uri_hash  (gconstpointer key);
  69 static gboolean host_uri_equal (gconstpointer v1, gconstpointer v2);
  70 static void     free_host      (SoupSessionHost *host);
  71
  72 static void setup_message   (SoupMessageFilter *filter, SoupMessage *msg);
  73
  74 static void queue_message   (SoupSession *session, SoupMessage *msg,
  75                              SoupMessageCallbackFn callback,
  76                              gpointer user_data);
  77 static void requeue_message (SoupSession *session, SoupMessage *msg);
  78 static void cancel_message  (SoupSession *session, SoupMessage *msg);
  79
  80 #define SOUP_SESSION_MAX_CONNS_DEFAULT 10
  81 #define SOUP_SESSION_MAX_CONNS_PER_HOST_DEFAULT 4
  82
  83 static void filter_iface_init (SoupMessageFilterClass *filter_class);
  84
  85 G_DEFINE_TYPE_EXTENDED (SoupSession, soup_session, G_TYPE_OBJECT, 0,
  86                         G_IMPLEMENT_INTERFACE (SOUP_TYPE_MESSAGE_FILTER,
  87                                                filter_iface_init))
  88
  89 enum {
  90         AUTHENTICATE,
  91         REAUTHENTICATE,
  92         LAST_SIGNAL
  93 };
  94
  95 static guint signals[LAST_SIGNAL] = { 0 };
  96
  97 enum {
  98         PROP_0,
  99
 100         PROP_PROXY_URI,
 101         PROP_MAX_CONNS,
 102         PROP_MAX_CONNS_PER_HOST,
 103         PROP_USE_NTLM,
 104         PROP_SSL_CA_FILE,
 105         PROP_ASYNC_CONTEXT,
 106         PROP_TIMEOUT,
 107
 108         LAST_PROP
 109 };
 110
 111 static void set_property (GObject *object, guint prop_id,
 112                           const GValue *value, GParamSpec *pspec);
 113 static void get_property (GObject *object, guint prop_id,
 114                           GValue *value, GParamSpec *pspec);
 115
 116 static void
 117 soup_session_init (SoupSession *session)
 118 {
 119         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 120
 121         session->queue = soup_message_queue_new ();
 122
 123         priv->host_lock = g_mutex_new ();
 124         priv->hosts = g_hash_table_new (host_uri_hash, host_uri_equal);
 125         priv->conns = g_hash_table_new (NULL, NULL);
 126
 127         priv->max_conns = SOUP_SESSION_MAX_CONNS_DEFAULT;
 128         priv->max_conns_per_host = SOUP_SESSION_MAX_CONNS_PER_HOST_DEFAULT;
 129
 130         priv->timeout = 0;
 131 }
 132
 133 static gboolean
 134 foreach_free_host (gpointer key, gpointer host, gpointer data)
 135 {
 136         free_host (host);
 137         return TRUE;
 138 }
 139
 140 static void
 141 cleanup_hosts (SoupSessionPrivate *priv)
 142 {
 143         GHashTable *old_hosts;
 144
 145         g_mutex_lock (priv->host_lock);
 146         old_hosts = priv->hosts;
 147         priv->hosts = g_hash_table_new (host_uri_hash, host_uri_equal);
 148         g_mutex_unlock (priv->host_lock);
 149
 150         g_hash_table_foreach_remove (old_hosts, foreach_free_host, NULL);
 151         g_hash_table_destroy (old_hosts);
 152 }
 153
 154 static void
 155 dispose (GObject *object)
 156 {
 157         SoupSession *session = SOUP_SESSION (object);
 158         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 159         GSList *f;
 160
 161         soup_session_abort (session);
 162         cleanup_hosts (priv);
 163
 164         if (priv->filters) {
 165                 for (f = priv->filters; f; f = f->next)
 166                         g_object_unref (f->data);
 167                 g_slist_free (priv->filters);
 168                 priv->filters = NULL;
 169         }
 170
 171         G_OBJECT_CLASS (soup_session_parent_class)->dispose (object);
 172 }
 173
 174 static void
 175 finalize (GObject *object)
 176 {
 177         SoupSession *session = SOUP_SESSION (object);
 178         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 179
 180         soup_message_queue_destroy (session->queue);
 181
 182         g_mutex_free (priv->host_lock);
 183         g_hash_table_destroy (priv->hosts);
 184         g_hash_table_destroy (priv->conns);
 185
 186         if (priv->ssl_creds)
 187                 soup_ssl_free_client_credentials (priv->ssl_creds);
 188
 189         if (priv->async_context)
 190                 g_main_context_unref (priv->async_context);
 191
 192         G_OBJECT_CLASS (soup_session_parent_class)->finalize (object);
 193 }
 194
 195 static void
 196 soup_session_class_init (SoupSessionClass *session_class)
 197 {
 198         GObjectClass *object_class = G_OBJECT_CLASS (session_class);
 199
 200         g_type_class_add_private (session_class, sizeof (SoupSessionPrivate));
 201
 202         /* virtual method definition */
 203         session_class->queue_message = queue_message;
 204         session_class->requeue_message = requeue_message;
 205         session_class->cancel_message = cancel_message;
 206
 207         /* virtual method override */
 208         object_class->dispose = dispose;
 209         object_class->finalize = finalize;
 210         object_class->set_property = set_property;
 211         object_class->get_property = get_property;
 212
 213         /* signals */
 214
 215         /**
 216          * SoupSession::authenticate:
 217          * @session: the session
 218          * @msg: the #SoupMessage being sent
 219          * @auth_type: the authentication type
 220          * @auth_realm: the realm being authenticated to
 221          * @username: the signal handler should set this to point to
 222          * the provided username
 223          * @password: the signal handler should set this to point to
 224          * the provided password
 225          *
 226          * Emitted when the session requires authentication. The
 227          * credentials may come from the user, or from cached
 228          * information. If no credentials are available, leave
 229          * @username and @password unchanged.
 230          *
 231          * If the provided credentials fail, the #reauthenticate
 232          * signal will be emitted.
 233          **/
 234         signals[AUTHENTICATE] =
 235                 g_signal_new ("authenticate",
 236                               G_OBJECT_CLASS_TYPE (object_class),
 237                               G_SIGNAL_RUN_FIRST,
 238                               G_STRUCT_OFFSET (SoupSessionClass, authenticate),
 239                               NULL, NULL,
 240                               soup_marshal_NONE__OBJECT_STRING_STRING_POINTER_POINTER,
 241                               G_TYPE_NONE, 5,
 242                               SOUP_TYPE_MESSAGE,
 243                               G_TYPE_STRING,
 244                               G_TYPE_STRING,
 245                               G_TYPE_POINTER,
 246                               G_TYPE_POINTER);
 247
 248         /**
 249          * SoupSession::reauthenticate:
 250          * @session: the session
 251          * @msg: the #SoupMessage being sent
 252          * @auth_type: the authentication type
 253          * @auth_realm: the realm being authenticated to
 254          * @username: the signal handler should set this to point to
 255          * the provided username
 256          * @password: the signal handler should set this to point to
 257          * the provided password
 258          *
 259          * Emitted when the credentials provided by the application to
 260          * the #authenticate signal have failed. This gives the
 261          * application a second chance to provide authentication
 262          * credentials. If the new credentials also fail, #SoupSession
 263          * will emit #reauthenticate again, and will continue doing so
 264          * until the provided credentials work, or a #reauthenticate
 265          * signal emission "fails" (because the handler left @username
 266          * and @password unchanged). At that point, the 401 or 407
 267          * error status will be returned to the caller.
 268          *
 269          * If your application only uses cached passwords, it should
 270          * only connect to #authenticate, and not #reauthenticate.
 271          *
 272          * If your application always prompts the user for a password,
 273          * and never uses cached information, then you can connect the
 274          * same handler to #authenticate and #reauthenticate.
 275          *
 276          * To get standard web-browser behavior, return either cached
 277          * information or a user-provided password (whichever is
 278          * available) from the #authenticate handler, but return only
 279          * user-provided information from the #reauthenticate handler.
 280          **/
 281         signals[REAUTHENTICATE] =
 282                 g_signal_new ("reauthenticate",
 283                               G_OBJECT_CLASS_TYPE (object_class),
 284                               G_SIGNAL_RUN_FIRST,
 285                               G_STRUCT_OFFSET (SoupSessionClass, reauthenticate),
 286                               NULL, NULL,
 287                               soup_marshal_NONE__OBJECT_STRING_STRING_POINTER_POINTER,
 288                               G_TYPE_NONE, 5,
 289                               SOUP_TYPE_MESSAGE,
 290                               G_TYPE_STRING,
 291                               G_TYPE_STRING,
 292                               G_TYPE_POINTER,
 293                               G_TYPE_POINTER);
 294
 295         /* properties */
 296         g_object_class_install_property (
 297                 object_class, PROP_PROXY_URI,
 298                 g_param_spec_pointer (SOUP_SESSION_PROXY_URI,
 299                                       "Proxy URI",
 300                                       "The HTTP Proxy to use for this session",
 301                                       G_PARAM_READWRITE));
 302         g_object_class_install_property (
 303                 object_class, PROP_MAX_CONNS,
 304                 g_param_spec_int (SOUP_SESSION_MAX_CONNS,
 305                                   "Max Connection Count",
 306                                   "The maximum number of connections that the session can open at once",
 307                                   1,
 308                                   G_MAXINT,
 309                                   10,
 310                                   G_PARAM_READWRITE));
 311         g_object_class_install_property (
 312                 object_class, PROP_MAX_CONNS_PER_HOST,
 313                 g_param_spec_int (SOUP_SESSION_MAX_CONNS_PER_HOST,
 314                                   "Max Per-Host Connection Count",
 315                                   "The maximum number of connections that the session can open at once to a given host",
 316                                   1,
 317                                   G_MAXINT,
 318                                   4,
 319                                   G_PARAM_READWRITE));
 320         g_object_class_install_property (
 321                 object_class, PROP_USE_NTLM,
 322                 g_param_spec_boolean (SOUP_SESSION_USE_NTLM,
 323                                       "Use NTLM",
 324                                       "Whether or not to use NTLM authentication",
 325                                       FALSE,
 326                                       G_PARAM_READWRITE));
 327         g_object_class_install_property (
 328                 object_class, PROP_SSL_CA_FILE,
 329                 g_param_spec_string (SOUP_SESSION_SSL_CA_FILE,
 330                                      "SSL CA file",
 331                                      "File containing SSL CA certificates",
 332                                      NULL,
 333                                      G_PARAM_READWRITE));
 334         g_object_class_install_property (
 335                 object_class, PROP_ASYNC_CONTEXT,
 336                 g_param_spec_pointer (SOUP_SESSION_ASYNC_CONTEXT,
 337                                       "Async GMainContext",
 338                                       "The GMainContext to dispatch async I/O in",
 339                                       G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 340         g_object_class_install_property (
 341                 object_class, PROP_TIMEOUT,
 342                 g_param_spec_uint (SOUP_SESSION_TIMEOUT,
 343                                    "Timeout value",
 344                                    "Value in seconds to timeout a blocking I/O",
 345                                    0, G_MAXUINT, 0,
 346                                    G_PARAM_READWRITE));
 347 }
 348
 349 static void
 350 filter_iface_init (SoupMessageFilterClass *filter_class)
 351 {
 352         /* interface implementation */
 353         filter_class->setup_message = setup_message;
 354 }
 355
 356
 357 static gboolean
 358 safe_uri_equal (const SoupUri *a, const SoupUri *b)
 359 {
 360         if (!a && !b)
 361                 return TRUE;
 362
 363         if ((a && !b) || (b && !a))
 364                 return FALSE;
 365
 366         return soup_uri_equal (a, b);
 367 }
 368
 369 static gboolean
 370 safe_str_equal (const char *a, const char *b)
 371 {
 372         if (!a && !b)
 373                 return TRUE;
 374
 375         if ((a && !b) || (b && !a))
 376                 return FALSE;
 377
 378         return strcmp (a, b) == 0;
 379 }
 380
 381 static void
 382 set_property (GObject *object, guint prop_id,
 383               const GValue *value, GParamSpec *pspec)
 384 {
 385         SoupSession *session = SOUP_SESSION (object);
 386         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 387         gpointer pval;
 388         gboolean need_abort = FALSE;
 389         gboolean ca_file_changed = FALSE;
 390         const char *new_ca_file;
 391
 392         switch (prop_id) {
 393         case PROP_PROXY_URI:
 394                 pval = g_value_get_pointer (value);
 395
 396                 if (!safe_uri_equal (priv->proxy_uri, pval))
 397                         need_abort = TRUE;
 398
 399                 if (priv->proxy_uri)
 400                         soup_uri_free (priv->proxy_uri);
 401
 402                 priv->proxy_uri = pval ? soup_uri_copy (pval) : NULL;
 403
 404                 if (need_abort) {
 405                         soup_session_abort (session);
 406                         cleanup_hosts (priv);
 407                 }
 408
 409                 break;
 410         case PROP_MAX_CONNS:
 411                 priv->max_conns = g_value_get_int (value);
 412                 break;
 413         case PROP_MAX_CONNS_PER_HOST:
 414                 priv->max_conns_per_host = g_value_get_int (value);
 415                 break;
 416         case PROP_USE_NTLM:
 417                 priv->use_ntlm = g_value_get_boolean (value);
 418                 break;
 419         case PROP_SSL_CA_FILE:
 420                 new_ca_file = g_value_get_string (value);
 421
 422                 if (!safe_str_equal (priv->ssl_ca_file, new_ca_file))
 423                         ca_file_changed = TRUE;
 424
 425                 g_free (priv->ssl_ca_file);
 426                 priv->ssl_ca_file = g_strdup (new_ca_file);
 427
 428                 if (ca_file_changed) {
 429                         if (priv->ssl_creds) {
 430                                 soup_ssl_free_client_credentials (priv->ssl_creds);
 431                                 priv->ssl_creds = NULL;
 432                         }
 433
 434                         cleanup_hosts (priv);
 435                 }
 436
 437                 break;
 438         case PROP_ASYNC_CONTEXT:
 439                 priv->async_context = g_value_get_pointer (value);
 440                 if (priv->async_context)
 441                         g_main_context_ref (priv->async_context);
 442                 break;
 443         case PROP_TIMEOUT:
 444                 priv->timeout = g_value_get_uint (value);
 445                 break;
 446         default:
 447                 break;
 448         }
 449 }
 450
 451 static void
 452 get_property (GObject *object, guint prop_id,
 453               GValue *value, GParamSpec *pspec)
 454 {
 455         SoupSession *session = SOUP_SESSION (object);
 456         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 457
 458         switch (prop_id) {
 459         case PROP_PROXY_URI:
 460                 g_value_set_pointer (value, priv->proxy_uri ?
 461                                      soup_uri_copy (priv->proxy_uri) :
 462                                      NULL);
 463                 break;
 464         case PROP_MAX_CONNS:
 465                 g_value_set_int (value, priv->max_conns);
 466                 break;
 467         case PROP_MAX_CONNS_PER_HOST:
 468                 g_value_set_int (value, priv->max_conns_per_host);
 469                 break;
 470         case PROP_USE_NTLM:
 471                 g_value_set_boolean (value, priv->use_ntlm);
 472                 break;
 473         case PROP_SSL_CA_FILE:
 474                 g_value_set_string (value, priv->ssl_ca_file);
 475                 break;
 476         case PROP_ASYNC_CONTEXT:
 477                 g_value_set_pointer (value, priv->async_context ? g_main_context_ref (priv->async_context) : NULL);
 478                 break;
 479         case PROP_TIMEOUT:
 480                 g_value_set_uint (value, priv->timeout);
 481                 break;
 482         default:
 483                 break;
 484         }
 485 }
 486
 487
 488 /**
 489  * soup_session_add_filter:
 490  * @session: a #SoupSession
 491  * @filter: an object implementing the #SoupMessageFilter interface
 492  *
 493  * Adds @filter to @session's list of message filters to be applied to
 494  * all messages.
 495  **/
 496 void
 497 soup_session_add_filter (SoupSession *session, SoupMessageFilter *filter)
 498 {
 499         SoupSessionPrivate *priv;
 500
 501         g_return_if_fail (SOUP_IS_SESSION (session));
 502         g_return_if_fail (SOUP_IS_MESSAGE_FILTER (filter));
 503         priv = SOUP_SESSION_GET_PRIVATE (session);
 504
 505         g_object_ref (filter);
 506         priv->filters = g_slist_prepend (priv->filters, filter);
 507 }
 508
 509 /**
 510  * soup_session_remove_filter:
 511  * @session: a #SoupSession
 512  * @filter: an object implementing the #SoupMessageFilter interface
 513  *
 514  * Removes @filter from @session's list of message filters
 515  **/
 516 void
 517 soup_session_remove_filter (SoupSession *session, SoupMessageFilter *filter)
 518 {
 519         SoupSessionPrivate *priv;
 520
 521         g_return_if_fail (SOUP_IS_SESSION (session));
 522         g_return_if_fail (SOUP_IS_MESSAGE_FILTER (filter));
 523         priv = SOUP_SESSION_GET_PRIVATE (session);
 524
 525         priv->filters = g_slist_remove (priv->filters, filter);
 526         g_object_unref (filter);
 527 }
 528
 529
 530 /* Hosts */
 531 static guint
 532 host_uri_hash (gconstpointer key)
 533 {
 534         const SoupUri *uri = key;
 535
 536         return (uri->protocol << 16) + uri->port + g_str_hash (uri->host);
 537 }
 538
 539 static gboolean
 540 host_uri_equal (gconstpointer v1, gconstpointer v2)
 541 {
 542         const SoupUri *one = v1;
 543         const SoupUri *two = v2;
 544
 545         if (one->protocol != two->protocol)
 546                 return FALSE;
 547         if (one->port != two->port)
 548                 return FALSE;
 549
 550         return strcmp (one->host, two->host) == 0;
 551 }
 552
 553 static SoupSessionHost *
 554 soup_session_host_new (SoupSession *session, const SoupUri *source_uri)
 555 {
 556         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 557         SoupSessionHost *host;
 558
 559         host = g_new0 (SoupSessionHost, 1);
 560         host->root_uri = soup_uri_copy_root (source_uri);
 561
 562         if (host->root_uri->protocol == SOUP_PROTOCOL_HTTPS &&
 563             !priv->ssl_creds) {
 564                 priv->ssl_creds =
 565                         soup_ssl_get_client_credentials (priv->ssl_ca_file);
 566         }
 567
 568         return host;
 569 }
 570
 571 /* Note: get_host_for_message doesn't lock the host_lock. The caller
 572  * must do it itself if there's a chance the host doesn't already
 573  * exist.
 574  */
 575 static SoupSessionHost *
 576 get_host_for_message (SoupSession *session, SoupMessage *msg)
 577 {
 578         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 579         SoupSessionHost *host;
 580         const SoupUri *source = soup_message_get_uri (msg);
 581
 582         host = g_hash_table_lookup (priv->hosts, source);
 583         if (host)
 584                 return host;
 585
 586         host = soup_session_host_new (session, source);
 587         g_hash_table_insert (priv->hosts, host->root_uri, host);
 588
 589         return host;
 590 }
 591
 592 /* Note: get_proxy_host doesn't lock the host_lock. The caller must do
 593  * it itself if there's a chance the host doesn't already exist.
 594  */
 595 static SoupSessionHost *
 596 get_proxy_host (SoupSession *session)
 597 {
 598         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 599
 600         if (priv->proxy_host || !priv->proxy_uri)
 601                 return priv->proxy_host;
 602
 603         priv->proxy_host =
 604                 soup_session_host_new (session, priv->proxy_uri);
 605         return priv->proxy_host;
 606 }
 607
 608 static void
 609 free_realm (gpointer path, gpointer scheme_realm, gpointer data)
 610 {
 611         g_free (path);
 612         g_free (scheme_realm);
 613 }
 614
 615 static void
 616 free_auth (gpointer scheme_realm, gpointer auth, gpointer data)
 617 {
 618         g_free (scheme_realm);
 619         g_object_unref (auth);
 620 }
 621
 622 static void
 623 free_host (SoupSessionHost *host)
 624 {
 625         while (host->connections) {
 626                 SoupConnection *conn = host->connections->data;
 627
 628                 host->connections = g_slist_remove (host->connections, conn);
 629                 soup_connection_disconnect (conn);
 630         }
 631
 632         if (host->auth_realms) {
 633                 g_hash_table_foreach (host->auth_realms, free_realm, NULL);
 634                 g_hash_table_destroy (host->auth_realms);
 635         }
 636         if (host->auths) {
 637                 g_hash_table_foreach (host->auths, free_auth, NULL);
 638                 g_hash_table_destroy (host->auths);
 639         }
 640
 641         soup_uri_free (host->root_uri);
 642         g_free (host);
 643 }
 644
 645 /* Authentication */
 646
 647 static SoupAuth *
 648 lookup_auth (SoupSession *session, SoupMessage *msg, gboolean proxy)
 649 {
 650         SoupSessionHost *host;
 651         char *path, *dir;
 652         const char *realm, *const_path;
 653
 654         if (proxy) {
 655                 host = get_proxy_host (session);
 656                 const_path = "/";
 657         } else {
 658                 host = get_host_for_message (session, msg);
 659                 const_path = soup_message_get_uri (msg)->path;
 660
 661                 if (!const_path)
 662                         const_path = "/";
 663         }
 664         g_return_val_if_fail (host != NULL, NULL);
 665
 666         if (!host->auth_realms)
 667                 return NULL;
 668
 669         path = g_strdup (const_path);
 670         dir = path;
 671         do {
 672                 realm = g_hash_table_lookup (host->auth_realms, path);
 673                 if (realm)
 674                         break;
 675
 676                 dir = strrchr (path, '/');
 677                 if (dir) {
 678                         if (dir[1])
 679                                 dir[1] = '\0';
 680                         else
 681                                 *dir = '\0';
 682                 }
 683         } while (dir);
 684
 685         g_free (path);
 686         if (realm)
 687                 return g_hash_table_lookup (host->auths, realm);
 688         else
 689                 return NULL;
 690 }
 691
 692 static void
 693 invalidate_auth (SoupSessionHost *host, SoupAuth *auth)
 694 {
 695         char *realm;
 696         gpointer key, value;
 697
 698         realm = g_strdup_printf ("%s:%s",
 699                                  soup_auth_get_scheme_name (auth),
 700                                  soup_auth_get_realm (auth));
 701
 702         if (g_hash_table_lookup_extended (host->auths, realm, &key, &value) &&
 703             auth == (SoupAuth *)value) {
 704                 g_hash_table_remove (host->auths, realm);
 705                 g_free (key);
 706                 g_object_unref (auth);
 707         }
 708         g_free (realm);
 709 }
 710
 711 static gboolean
 712 authenticate_auth (SoupSession *session, SoupAuth *auth,
 713                    SoupMessage *msg, gboolean prior_auth_failed,
 714                    gboolean proxy)
 715 {
 716         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 717         const SoupUri *uri;
 718         char *username = NULL, *password = NULL;
 719
 720         if (proxy)
 721                 uri = priv->proxy_uri;
 722         else
 723                 uri = soup_message_get_uri (msg);
 724
 725         if (uri->passwd && !prior_auth_failed) {
 726                 soup_auth_authenticate (auth, uri->user, uri->passwd);
 727                 return TRUE;
 728         }
 729
 730         g_signal_emit (session, signals[prior_auth_failed ? REAUTHENTICATE : AUTHENTICATE], 0,
 731                        msg, soup_auth_get_scheme_name (auth),
 732                        soup_auth_get_realm (auth),
 733                        &username, &password);
 734         if (username || password)
 735                 soup_auth_authenticate (auth, username, password);
 736         if (username)
 737                 g_free (username);
 738         if (password) {
 739                 memset (password, 0, strlen (password));
 740                 g_free (password);
 741         }
 742
 743         return soup_auth_is_authenticated (auth);
 744 }
 745
 746 static gboolean
 747 update_auth_internal (SoupSession *session, SoupMessage *msg,
 748                       const GSList *headers, gboolean proxy)
 749 {
 750         SoupSessionHost *host;
 751         SoupAuth *new_auth, *prior_auth, *old_auth;
 752         gpointer old_path, old_realm;
 753         const SoupUri *msg_uri;
 754         const char *path;
 755         char *realm;
 756         GSList *pspace, *p;
 757         gboolean prior_auth_failed = FALSE;
 758
 759         if (proxy)
 760                 host = get_proxy_host (session);
 761         else
 762                 host = get_host_for_message (session, msg);
 763
 764         g_return_val_if_fail (host != NULL, FALSE);
 765
 766         /* Try to construct a new auth from the headers; if we can't,
 767          * there's no way we'll be able to authenticate.
 768          */
 769         msg_uri = soup_message_get_uri (msg);
 770         new_auth = soup_auth_new_from_header_list (headers);
 771         if (!new_auth)
 772                 return FALSE;
 773
 774         /* See if this auth is the same auth we used last time */
 775         prior_auth = proxy ? soup_message_get_proxy_auth (msg) : soup_message_get_auth (msg);
 776         if (prior_auth &&
 777             G_OBJECT_TYPE (prior_auth) == G_OBJECT_TYPE (new_auth) &&
 778             !strcmp (soup_auth_get_realm (prior_auth),
 779                      soup_auth_get_realm (new_auth))) {
 780                 /* The server didn't like the username/password we
 781                  * provided before. Invalidate it and note this fact.
 782                  */
 783                 invalidate_auth (host, prior_auth);
 784                 prior_auth_failed = TRUE;
 785         }
 786
 787         if (!host->auth_realms) {
 788                 host->auth_realms = g_hash_table_new (g_str_hash, g_str_equal);
 789                 host->auths = g_hash_table_new (g_str_hash, g_str_equal);
 790         }
 791
 792         /* Record where this auth realm is used */
 793         realm = g_strdup_printf ("%s:%s",
 794                                  soup_auth_get_scheme_name (new_auth),
 795                                  soup_auth_get_realm (new_auth));
 796
 797         /*
 798          * RFC 2617 is somewhat unclear about the scope of protection
 799          * spaces with regard to proxies.  The only mention of it is
 800          * as an aside in section 3.2.1, where it is defining the fields
 801          * of a Digest challenge and says that the protection space is
 802          * always the entire proxy.  Is this the case for all authentication
 803          * schemes or just Digest?  Who knows, but we're assuming all.
 804          */
 805         if (proxy)
 806                 pspace = g_slist_prepend (NULL, g_strdup (""));
 807         else
 808                 pspace = soup_auth_get_protection_space (new_auth, msg_uri);
 809
 810         for (p = pspace; p; p = p->next) {
 811                 path = p->data;
 812                 if (g_hash_table_lookup_extended (host->auth_realms, path,
 813                                                   &old_path, &old_realm)) {
 814                         g_hash_table_remove (host->auth_realms, old_path);
 815                         g_free (old_path);
 816                         g_free (old_realm);
 817                 }
 818
 819                 g_hash_table_insert (host->auth_realms,
 820                                      g_strdup (path), g_strdup (realm));
 821         }
 822         soup_auth_free_protection_space (new_auth, pspace);
 823
 824         /* Now, make sure the auth is recorded. (If there's a
 825          * pre-existing auth, we keep that rather than the new one,
 826          * since the old one might already be authenticated.)
 827          */
 828         old_auth = g_hash_table_lookup (host->auths, realm);
 829         if (old_auth) {
 830                 g_free (realm);
 831                 g_object_unref (new_auth);
 832                 new_auth = old_auth;
 833         } else
 834                 g_hash_table_insert (host->auths, realm, new_auth);
 835
 836         /* If we need to authenticate, try to do it. */
 837         if (!soup_auth_is_authenticated (new_auth)) {
 838                 return authenticate_auth (session, new_auth,
 839                                           msg, prior_auth_failed, proxy);
 840         }
 841
 842         /* Otherwise we're good. */
 843         return TRUE;
 844 }
 845
 846 static void
 847 connection_authenticate (SoupConnection *conn, SoupMessage *msg,
 848                          const char *auth_type, const char *auth_realm,
 849                          char **username, char **password, gpointer session)
 850 {
 851         g_signal_emit (session, signals[AUTHENTICATE], 0,
 852                        msg, auth_type, auth_realm, username, password);
 853 }
 854
 855 static void
 856 connection_reauthenticate (SoupConnection *conn, SoupMessage *msg,
 857                            const char *auth_type, const char *auth_realm,
 858                            char **username, char **password,
 859                            gpointer user_data)
 860 {
 861         g_signal_emit (conn, signals[REAUTHENTICATE], 0,
 862                        msg, auth_type, auth_realm, username, password);
 863 }
 864
 865
 866 static void
 867 authorize_handler (SoupMessage *msg, gpointer user_data)
 868 {
 869         SoupSession *session = user_data;
 870         const GSList *headers;
 871         gboolean proxy;
 872
 873         if (msg->status_code == SOUP_STATUS_PROXY_AUTHENTICATION_REQUIRED) {
 874                 headers = soup_message_get_header_list (msg->response_headers,
 875                                                         "Proxy-Authenticate");
 876                 proxy = TRUE;
 877         } else {
 878                 headers = soup_message_get_header_list (msg->response_headers,
 879                                                         "WWW-Authenticate");
 880                 proxy = FALSE;
 881         }
 882         if (!headers)
 883                 return;
 884
 885         if (update_auth_internal (session, msg, headers, proxy))
 886                 soup_session_requeue_message (session, msg);
 887 }
 888
 889 static void
 890 redirect_handler (SoupMessage *msg, gpointer user_data)
 891 {
 892         SoupSession *session = user_data;
 893         const char *new_loc;
 894         SoupUri *new_uri;
 895
 896         new_loc = soup_message_get_header (msg->response_headers, "Location");
 897         if (!new_loc)
 898                 return;
 899
 900         /* Location is supposed to be an absolute URI, but some sites
 901          * are lame, so we use soup_uri_new_with_base().
 902          */
 903         new_uri = soup_uri_new_with_base (soup_message_get_uri (msg), new_loc);
 904         if (!new_uri) {
 905                 soup_message_set_status_full (msg,
 906                                               SOUP_STATUS_MALFORMED,
 907                                               "Invalid Redirect URL");
 908                 return;
 909         }
 910
 911         soup_message_set_uri (msg, new_uri);
 912         soup_uri_free (new_uri);
 913
 914         soup_session_requeue_message (session, msg);
 915 }
 916
 917 static void
 918 add_auth (SoupSession *session, SoupMessage *msg, gboolean proxy)
 919 {
 920         SoupAuth *auth;
 921
 922         auth = lookup_auth (session, msg, proxy);
 923         if (auth && !soup_auth_is_authenticated (auth)) {
 924                 if (!authenticate_auth (session, auth, msg, FALSE, proxy))
 925                         auth = NULL;
 926         }
 927
 928         if (proxy)
 929                 soup_message_set_proxy_auth (msg, auth);
 930         else
 931                 soup_message_set_auth (msg, auth);
 932 }
 933
 934 static void
 935 setup_message (SoupMessageFilter *filter, SoupMessage *msg)
 936 {
 937         SoupSession *session = SOUP_SESSION (filter);
 938         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 939         GSList *f;
 940
 941         for (f = priv->filters; f; f = f->next) {
 942                 filter = f->data;
 943                 soup_message_filter_setup_message (filter, msg);
 944         }
 945
 946         add_auth (session, msg, FALSE);
 947         soup_message_add_status_code_handler (
 948                 msg, SOUP_STATUS_UNAUTHORIZED,
 949                 SOUP_HANDLER_POST_BODY,
 950                 authorize_handler, session);
 951
 952         if (priv->proxy_uri) {
 953                 add_auth (session, msg, TRUE);
 954                 soup_message_add_status_code_handler  (
 955                         msg, SOUP_STATUS_PROXY_UNAUTHORIZED,
 956                         SOUP_HANDLER_POST_BODY,
 957                         authorize_handler, session);
 958         }
 959 }
 960
 961 static void
 962 find_oldest_connection (gpointer key, gpointer host, gpointer data)
 963 {
 964         SoupConnection *conn = key, **oldest = data;
 965
 966         /* Don't prune a connection that is currently in use, or
 967          * hasn't been used yet.
 968          */
 969         if (soup_connection_is_in_use (conn) ||
 970             soup_connection_last_used (conn) == 0)
 971                 return;
 972
 973         if (!*oldest || (soup_connection_last_used (conn) <
 974                          soup_connection_last_used (*oldest)))
 975                 *oldest = conn;
 976 }
 977
 978 /**
 979  * soup_session_try_prune_connection:
 980  * @session: a #SoupSession
 981  *
 982  * Finds the least-recently-used idle connection in @session and closes
 983  * it.
 984  *
 985  * Return value: %TRUE if a connection was closed, %FALSE if there are
 986  * no idle connections.
 987  **/
 988 gboolean
 989 soup_session_try_prune_connection (SoupSession *session)
 990 {
 991         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 992         SoupConnection *oldest = NULL;
 993
 994         g_mutex_lock (priv->host_lock);
 995         g_hash_table_foreach (priv->conns, find_oldest_connection,
 996                               &oldest);
 997         if (oldest) {
 998                 /* Ref the connection before unlocking the mutex in
 999                  * case someone else tries to prune it too.
1000                  */
1001                 g_object_ref (oldest);
1002                 g_mutex_unlock (priv->host_lock);
1003                 soup_connection_disconnect (oldest);
1004                 g_object_unref (oldest);
1005                 return TRUE;
1006         } else {
1007                 g_mutex_unlock (priv->host_lock);
1008                 return FALSE;
1009         }
1010 }
1011
1012 static void
1013 connection_disconnected (SoupConnection *conn, gpointer user_data)
1014 {
1015         SoupSession *session = user_data;
1016         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
1017         SoupSessionHost *host;
1018
1019         g_mutex_lock (priv->host_lock);
1020
1021         host = g_hash_table_lookup (priv->conns, conn);
1022         if (host) {
1023                 g_hash_table_remove (priv->conns, conn);
1024                 host->connections = g_slist_remove (host->connections, conn);
1025                 host->num_conns--;
1026         }
1027
1028         g_signal_handlers_disconnect_by_func (conn, connection_disconnected, session);
1029         priv->num_conns--;
1030
1031         g_mutex_unlock (priv->host_lock);
1032         g_object_unref (conn);
1033 }
1034
1035 static void
1036 connect_result (SoupConnection *conn, guint status, gpointer user_data)
1037 {
1038         SoupSession *session = user_data;
1039         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
1040         SoupSessionHost *host;
1041         SoupMessageQueueIter iter;
1042         SoupMessage *msg;
1043
1044         g_mutex_lock (priv->host_lock);
1045
1046         host = g_hash_table_lookup (priv->conns, conn);
1047         if (!host) {
1048                 g_mutex_unlock (priv->host_lock);
1049                 return;
1050         }
1051
1052         if (status == SOUP_STATUS_OK) {
1053                 soup_connection_reserve (conn);
1054                 host->connections = g_slist_prepend (host->connections, conn);
1055                 g_mutex_unlock (priv->host_lock);
1056                 return;
1057         }
1058
1059         /* The connection failed. */
1060         g_mutex_unlock (priv->host_lock);
1061         connection_disconnected (conn, session);
1062
1063         if (host->connections) {
1064                 /* Something went wrong this time, but we have at
1065                  * least one open connection to this host. So just
1066                  * leave the message in the queue so it can use that
1067                  * connection once it's free.
1068                  */
1069                 return;
1070         }
1071
1072         /* There are two possibilities: either status is
1073          * SOUP_STATUS_TRY_AGAIN, in which case the session implementation
1074          * will create a new connection (and all we need to do here
1075          * is downgrade the message from CONNECTING to QUEUED); or
1076          * status is something else, probably CANT_CONNECT or
1077          * CANT_RESOLVE or the like, in which case we need to cancel
1078          * any messages waiting for this host, since they're out
1079          * of luck.
1080          */
1081         for (msg = soup_message_queue_first (session->queue, &iter); msg; msg = soup_message_queue_next (session->queue, &iter)) {
1082                 if (get_host_for_message (session, msg) == host) {
1083                         if (status == SOUP_STATUS_TRY_AGAIN) {
1084                                 if (msg->status == SOUP_MESSAGE_STATUS_CONNECTING)
1085                                         msg->status = SOUP_MESSAGE_STATUS_QUEUED;
1086                         } else {
1087                                 soup_message_set_status (msg, status);
1088                                 soup_session_cancel_message (session, msg);
1089                         }
1090                 }
1091         }
1092 }
1093
1094 /**
1095  * soup_session_get_connection:
1096  * @session: a #SoupSession
1097  * @msg: a #SoupMessage
1098  * @try_pruning: on return, whether or not to try pruning a connection
1099  * @is_new: on return, %TRUE if the returned connection is new and not
1100  * yet connected
1101  *
1102  * Tries to find or create a connection for @msg; this is an internal
1103  * method for #SoupSession subclasses.
1104  *
1105  * If there is an idle connection to the relevant host available, then
1106  * that connection will be returned (with *@is_new set to %FALSE). The
1107  * connection will be marked "reserved", so the caller must call
1108  * soup_connection_release() if it ends up not using the connection
1109  * right away.
1110  *
1111  * If there is no idle connection available, but it is possible to
1112  * create a new connection, then one will be created and returned,
1113  * with *@is_new set to %TRUE. The caller MUST then call
1114  * soup_connection_connect_sync() or soup_connection_connect_async()
1115  * to connect it. If the connection attempt succeeds, the connection
1116  * will be marked "reserved" and added to @session's connection pool
1117  * once it connects. If the connection attempt fails, the connection
1118  * will be unreffed.
1119  *
1120  * If no connection is available and a new connection cannot be made,
1121  * soup_session_get_connection() will return %NULL. If @session has
1122  * the maximum number of open connections open, but does not have the
1123  * maximum number of per-host connections open to the relevant host,
1124  * then *@try_pruning will be set to %TRUE. In this case, the caller
1125  * can call soup_session_try_prune_connection() to close an idle
1126  * connection, and then try soup_session_get_connection() again. (If
1127  * calling soup_session_try_prune_connection() wouldn't help, then
1128  * *@try_pruning is left untouched; it is NOT set to %FALSE.)
1129  *
1130  * Return value: a #SoupConnection, or %NULL
1131  **/
1132 SoupConnection *
1133 soup_session_get_connection (SoupSession *session, SoupMessage *msg,
1134                              gboolean *try_pruning, gboolean *is_new)
1135 {
1136         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
1137         SoupConnection *conn;
1138         SoupSessionHost *host;
1139         GSList *conns;
1140
1141         g_mutex_lock (priv->host_lock);
1142
1143         host = get_host_for_message (session, msg);
1144         for (conns = host->connections; conns; conns = conns->next) {
1145                 if (!soup_connection_is_in_use (conns->data)) {
1146                         soup_connection_reserve (conns->data);
1147                         g_mutex_unlock (priv->host_lock);
1148                         *is_new = FALSE;
1149                         return conns->data;
1150                 }
1151         }
1152
1153         if (msg->status == SOUP_MESSAGE_STATUS_CONNECTING) {
1154                 /* We already started a connection for this
1155                  * message, so don't start another one.
1156                  */
1157                 g_mutex_unlock (priv->host_lock);
1158                 return NULL;
1159         }
1160
1161         if (host->num_conns >= priv->max_conns_per_host) {
1162                 g_mutex_unlock (priv->host_lock);
1163                 return NULL;
1164         }
1165
1166         if (priv->num_conns >= priv->max_conns) {
1167                 *try_pruning = TRUE;
1168                 g_mutex_unlock (priv->host_lock);
1169                 return NULL;
1170         }
1171
1172         /* Make sure priv->proxy_host gets set now while
1173          * we have the host_lock.
1174          */
1175         if (priv->proxy_uri)
1176                 get_proxy_host (session);
1177
1178         conn = g_object_new (
1179                 (priv->use_ntlm ?
1180                  SOUP_TYPE_CONNECTION_NTLM : SOUP_TYPE_CONNECTION),
1181                 SOUP_CONNECTION_ORIGIN_URI, host->root_uri,
1182                 SOUP_CONNECTION_PROXY_URI, priv->proxy_uri,
1183                 SOUP_CONNECTION_SSL_CREDENTIALS, priv->ssl_creds,
1184                 SOUP_CONNECTION_MESSAGE_FILTER, session,
1185                 SOUP_CONNECTION_ASYNC_CONTEXT, priv->async_context,
1186                 SOUP_CONNECTION_TIMEOUT, priv->timeout,
1187                 NULL);
1188         g_signal_connect (conn, "connect_result",
1189                           G_CALLBACK (connect_result),
1190                           session);
1191         g_signal_connect (conn, "disconnected",
1192                           G_CALLBACK (connection_disconnected),
1193                           session);
1194         g_signal_connect (conn, "authenticate",
1195                           G_CALLBACK (connection_authenticate),
1196                           session);
1197         g_signal_connect (conn, "reauthenticate",
1198                           G_CALLBACK (connection_reauthenticate),
1199                           session);
1200
1201         g_hash_table_insert (priv->conns, conn, host);
1202
1203         /* We increment the connection counts so it counts against the
1204          * totals, but we don't add it to the host's connection list
1205          * yet, since it's not ready for use.
1206          */
1207         priv->num_conns++;
1208         host->num_conns++;
1209
1210         /* Mark the request as connecting, so we don't try to open
1211          * another new connection for it while waiting for this one.
1212          */
1213         msg->status = SOUP_MESSAGE_STATUS_CONNECTING;
1214
1215         g_mutex_unlock (priv->host_lock);
1216         *is_new = TRUE;
1217         return conn;
1218 }
1219
1220 static void
1221 message_finished (SoupMessage *msg, gpointer user_data)
1222 {
1223         SoupSession *session = user_data;
1224
1225         if (!SOUP_MESSAGE_IS_STARTING (msg)) {
1226                 soup_message_queue_remove_message (session->queue, msg);
1227                 g_signal_handlers_disconnect_by_func (msg, message_finished, session);
1228         }
1229 }
1230
1231 static void
1232 queue_message (SoupSession *session, SoupMessage *msg,
1233                SoupMessageCallbackFn callback, gpointer user_data)
1234 {
1235         g_signal_connect_after (msg, "finished",
1236                                 G_CALLBACK (message_finished), session);
1237
1238         if (!(soup_message_get_flags (msg) & SOUP_MESSAGE_NO_REDIRECT)) {
1239                 soup_message_add_status_class_handler (
1240                         msg, SOUP_STATUS_CLASS_REDIRECT,
1241                         SOUP_HANDLER_POST_BODY,
1242                         redirect_handler, session);
1243         }
1244
1245         msg->status = SOUP_MESSAGE_STATUS_QUEUED;
1246         soup_message_queue_append (session->queue, msg);
1247 }
1248
1249 /**
1250  * soup_session_queue_message:
1251  * @session: a #SoupSession
1252  * @msg: the message to queue
1253  * @callback: a #SoupMessageCallbackFn which will be called after the
1254  * message completes or when an unrecoverable error occurs.
1255  * @user_data: a pointer passed to @callback.
1256  *
1257  * Queues the message @msg for sending. All messages are processed
1258  * while the glib main loop runs. If @msg has been processed before,
1259  * any resources related to the time it was last sent are freed.
1260  *
1261  * Upon message completion, the callback specified in @callback will
1262  * be invoked (in the thread associated with @session's async
1263  * context). If after returning from this callback the message has not
1264  * been requeued, @msg will be unreffed.
1265  */
1266 void
1267 soup_session_queue_message (SoupSession *session, SoupMessage *msg,
1268                             SoupMessageCallbackFn callback, gpointer user_data)
1269 {
1270         g_return_if_fail (SOUP_IS_SESSION (session));
1271         g_return_if_fail (SOUP_IS_MESSAGE (msg));
1272
1273         SOUP_SESSION_GET_CLASS (session)->queue_message (session, msg,
1274                                                          callback, user_data);
1275 }
1276
1277 static void
1278 requeue_message (SoupSession *session, SoupMessage *msg)
1279 {
1280         msg->status = SOUP_MESSAGE_STATUS_QUEUED;
1281 }
1282
1283 /**
1284  * soup_session_requeue_message:
1285  * @session: a #SoupSession
1286  * @msg: the message to requeue
1287  *
1288  * This causes @msg to be placed back on the queue to be attempted
1289  * again.
1290  **/
1291 void
1292 soup_session_requeue_message (SoupSession *session, SoupMessage *msg)
1293 {
1294         g_return_if_fail (SOUP_IS_SESSION (session));
1295         g_return_if_fail (SOUP_IS_MESSAGE (msg));
1296
1297         SOUP_SESSION_GET_CLASS (session)->requeue_message (session, msg);
1298 }
1299
1300
1301 /**
1302  * soup_session_send_message:
1303  * @session: a #SoupSession
1304  * @msg: the message to send
1305  *
1306  * Synchronously send @msg. This call will not return until the
1307  * transfer is finished successfully or there is an unrecoverable
1308  * error.
1309  *
1310  * @msg is not freed upon return.
1311  *
1312  * Return value: the HTTP status code of the response
1313  */
1314 guint
1315 soup_session_send_message (SoupSession *session, SoupMessage *msg)
1316 {
1317         g_return_val_if_fail (SOUP_IS_SESSION (session), SOUP_STATUS_MALFORMED);
1318         g_return_val_if_fail (SOUP_IS_MESSAGE (msg), SOUP_STATUS_MALFORMED);
1319
1320         return SOUP_SESSION_GET_CLASS (session)->send_message (session, msg);
1321 }
1322
1323
1324 static void
1325 cancel_message (SoupSession *session, SoupMessage *msg)
1326 {
1327         soup_message_queue_remove_message (session->queue, msg);
1328         soup_message_finished (msg);
1329 }
1330
1331 /**
1332  * soup_session_cancel_message:
1333  * @session: a #SoupSession
1334  * @msg: the message to cancel
1335  *
1336  * Causes @session to immediately finish processing @msg. You should
1337  * set a status code on @msg with soup_message_set_status() before
1338  * calling this function.
1339  **/
1340 void
1341 soup_session_cancel_message (SoupSession *session, SoupMessage *msg)
1342 {
1343         g_return_if_fail (SOUP_IS_SESSION (session));
1344         g_return_if_fail (SOUP_IS_MESSAGE (msg));
1345
1346         SOUP_SESSION_GET_CLASS (session)->cancel_message (session, msg);
1347 }
1348
1349 /**
1350  * soup_session_abort:
1351  * @session: the session
1352  *
1353  * Cancels all pending requests in @session.
1354  **/
1355 void
1356 soup_session_abort (SoupSession *session)
1357 {
1358         SoupMessageQueueIter iter;
1359         SoupMessage *msg;
1360
1361         g_return_if_fail (SOUP_IS_SESSION (session));
1362
1363         for (msg = soup_message_queue_first (session->queue, &iter); msg; msg = soup_message_queue_next (session->queue, &iter)) {
1364                 soup_message_set_status (msg, SOUP_STATUS_CANCELLED);
1365                 soup_session_cancel_message (session, msg);
1366         }
1367 }