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->proxy_uri)
 187                 soup_uri_free (priv->proxy_uri);
 188         if (priv->proxy_host)
 189                 free_host (priv->proxy_host);
 190
 191         if (priv->ssl_creds)
 192                 soup_ssl_free_client_credentials (priv->ssl_creds);
 193
 194         if (priv->async_context)
 195                 g_main_context_unref (priv->async_context);
 196
 197         G_OBJECT_CLASS (soup_session_parent_class)->finalize (object);
 198 }
 199
 200 static void
 201 soup_session_class_init (SoupSessionClass *session_class)
 202 {
 203         GObjectClass *object_class = G_OBJECT_CLASS (session_class);
 204
 205         g_type_class_add_private (session_class, sizeof (SoupSessionPrivate));
 206
 207         /* virtual method definition */
 208         session_class->queue_message = queue_message;
 209         session_class->requeue_message = requeue_message;
 210         session_class->cancel_message = cancel_message;
 211
 212         /* virtual method override */
 213         object_class->dispose = dispose;
 214         object_class->finalize = finalize;
 215         object_class->set_property = set_property;
 216         object_class->get_property = get_property;
 217
 218         /* signals */
 219
 220         /**
 221          * SoupSession::authenticate:
 222          * @session: the session
 223          * @msg: the #SoupMessage being sent
 224          * @auth_type: the authentication type
 225          * @auth_realm: the realm being authenticated to
 226          * @username: the signal handler should set this to point to
 227          * the provided username
 228          * @password: the signal handler should set this to point to
 229          * the provided password
 230          *
 231          * Emitted when the session requires authentication. The
 232          * credentials may come from the user, or from cached
 233          * information. If no credentials are available, leave
 234          * @username and @password unchanged.
 235          *
 236          * If the provided credentials fail, the #reauthenticate
 237          * signal will be emitted.
 238          **/
 239         signals[AUTHENTICATE] =
 240                 g_signal_new ("authenticate",
 241                               G_OBJECT_CLASS_TYPE (object_class),
 242                               G_SIGNAL_RUN_FIRST,
 243                               G_STRUCT_OFFSET (SoupSessionClass, authenticate),
 244                               NULL, NULL,
 245                               soup_marshal_NONE__OBJECT_STRING_STRING_POINTER_POINTER,
 246                               G_TYPE_NONE, 5,
 247                               SOUP_TYPE_MESSAGE,
 248                               G_TYPE_STRING,
 249                               G_TYPE_STRING,
 250                               G_TYPE_POINTER,
 251                               G_TYPE_POINTER);
 252
 253         /**
 254          * SoupSession::reauthenticate:
 255          * @session: the session
 256          * @msg: the #SoupMessage being sent
 257          * @auth_type: the authentication type
 258          * @auth_realm: the realm being authenticated to
 259          * @username: the signal handler should set this to point to
 260          * the provided username
 261          * @password: the signal handler should set this to point to
 262          * the provided password
 263          *
 264          * Emitted when the credentials provided by the application to
 265          * the #authenticate signal have failed. This gives the
 266          * application a second chance to provide authentication
 267          * credentials. If the new credentials also fail, #SoupSession
 268          * will emit #reauthenticate again, and will continue doing so
 269          * until the provided credentials work, or a #reauthenticate
 270          * signal emission "fails" (because the handler left @username
 271          * and @password unchanged). At that point, the 401 or 407
 272          * error status will be returned to the caller.
 273          *
 274          * If your application only uses cached passwords, it should
 275          * only connect to #authenticate, and not #reauthenticate.
 276          *
 277          * If your application always prompts the user for a password,
 278          * and never uses cached information, then you can connect the
 279          * same handler to #authenticate and #reauthenticate.
 280          *
 281          * To get standard web-browser behavior, return either cached
 282          * information or a user-provided password (whichever is
 283          * available) from the #authenticate handler, but return only
 284          * user-provided information from the #reauthenticate handler.
 285          **/
 286         signals[REAUTHENTICATE] =
 287                 g_signal_new ("reauthenticate",
 288                               G_OBJECT_CLASS_TYPE (object_class),
 289                               G_SIGNAL_RUN_FIRST,
 290                               G_STRUCT_OFFSET (SoupSessionClass, reauthenticate),
 291                               NULL, NULL,
 292                               soup_marshal_NONE__OBJECT_STRING_STRING_POINTER_POINTER,
 293                               G_TYPE_NONE, 5,
 294                               SOUP_TYPE_MESSAGE,
 295                               G_TYPE_STRING,
 296                               G_TYPE_STRING,
 297                               G_TYPE_POINTER,
 298                               G_TYPE_POINTER);
 299
 300         /* properties */
 301         g_object_class_install_property (
 302                 object_class, PROP_PROXY_URI,
 303                 g_param_spec_pointer (SOUP_SESSION_PROXY_URI,
 304                                       "Proxy URI",
 305                                       "The HTTP Proxy to use for this session",
 306                                       G_PARAM_READWRITE));
 307         g_object_class_install_property (
 308                 object_class, PROP_MAX_CONNS,
 309                 g_param_spec_int (SOUP_SESSION_MAX_CONNS,
 310                                   "Max Connection Count",
 311                                   "The maximum number of connections that the session can open at once",
 312                                   1,
 313                                   G_MAXINT,
 314                                   10,
 315                                   G_PARAM_READWRITE));
 316         g_object_class_install_property (
 317                 object_class, PROP_MAX_CONNS_PER_HOST,
 318                 g_param_spec_int (SOUP_SESSION_MAX_CONNS_PER_HOST,
 319                                   "Max Per-Host Connection Count",
 320                                   "The maximum number of connections that the session can open at once to a given host",
 321                                   1,
 322                                   G_MAXINT,
 323                                   4,
 324                                   G_PARAM_READWRITE));
 325         g_object_class_install_property (
 326                 object_class, PROP_USE_NTLM,
 327                 g_param_spec_boolean (SOUP_SESSION_USE_NTLM,
 328                                       "Use NTLM",
 329                                       "Whether or not to use NTLM authentication",
 330                                       FALSE,
 331                                       G_PARAM_READWRITE));
 332         g_object_class_install_property (
 333                 object_class, PROP_SSL_CA_FILE,
 334                 g_param_spec_string (SOUP_SESSION_SSL_CA_FILE,
 335                                      "SSL CA file",
 336                                      "File containing SSL CA certificates",
 337                                      NULL,
 338                                      G_PARAM_READWRITE));
 339         g_object_class_install_property (
 340                 object_class, PROP_ASYNC_CONTEXT,
 341                 g_param_spec_pointer (SOUP_SESSION_ASYNC_CONTEXT,
 342                                       "Async GMainContext",
 343                                       "The GMainContext to dispatch async I/O in",
 344                                       G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 345         g_object_class_install_property (
 346                 object_class, PROP_TIMEOUT,
 347                 g_param_spec_uint (SOUP_SESSION_TIMEOUT,
 348                                    "Timeout value",
 349                                    "Value in seconds to timeout a blocking I/O",
 350                                    0, G_MAXUINT, 0,
 351                                    G_PARAM_READWRITE));
 352 }
 353
 354 static void
 355 filter_iface_init (SoupMessageFilterClass *filter_class)
 356 {
 357         /* interface implementation */
 358         filter_class->setup_message = setup_message;
 359 }
 360
 361
 362 static gboolean
 363 safe_uri_equal (const SoupUri *a, const SoupUri *b)
 364 {
 365         if (!a && !b)
 366                 return TRUE;
 367
 368         if ((a && !b) || (b && !a))
 369                 return FALSE;
 370
 371         return soup_uri_equal (a, b);
 372 }
 373
 374 static gboolean
 375 safe_str_equal (const char *a, const char *b)
 376 {
 377         if (!a && !b)
 378                 return TRUE;
 379
 380         if ((a && !b) || (b && !a))
 381                 return FALSE;
 382
 383         return strcmp (a, b) == 0;
 384 }
 385
 386 static void
 387 set_property (GObject *object, guint prop_id,
 388               const GValue *value, GParamSpec *pspec)
 389 {
 390         SoupSession *session = SOUP_SESSION (object);
 391         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 392         gpointer pval;
 393         gboolean need_abort = FALSE;
 394         gboolean ca_file_changed = FALSE;
 395         const char *new_ca_file;
 396
 397         switch (prop_id) {
 398         case PROP_PROXY_URI:
 399                 pval = g_value_get_pointer (value);
 400
 401                 if (!safe_uri_equal (priv->proxy_uri, pval))
 402                         need_abort = TRUE;
 403
 404                 if (priv->proxy_uri)
 405                         soup_uri_free (priv->proxy_uri);
 406
 407                 priv->proxy_uri = pval ? soup_uri_copy (pval) : NULL;
 408
 409                 if (need_abort) {
 410                         soup_session_abort (session);
 411                         cleanup_hosts (priv);
 412                 }
 413
 414                 break;
 415         case PROP_MAX_CONNS:
 416                 priv->max_conns = g_value_get_int (value);
 417                 break;
 418         case PROP_MAX_CONNS_PER_HOST:
 419                 priv->max_conns_per_host = g_value_get_int (value);
 420                 break;
 421         case PROP_USE_NTLM:
 422                 priv->use_ntlm = g_value_get_boolean (value);
 423                 break;
 424         case PROP_SSL_CA_FILE:
 425                 new_ca_file = g_value_get_string (value);
 426
 427                 if (!safe_str_equal (priv->ssl_ca_file, new_ca_file))
 428                         ca_file_changed = TRUE;
 429
 430                 g_free (priv->ssl_ca_file);
 431                 priv->ssl_ca_file = g_strdup (new_ca_file);
 432
 433                 if (ca_file_changed) {
 434                         if (priv->ssl_creds) {
 435                                 soup_ssl_free_client_credentials (priv->ssl_creds);
 436                                 priv->ssl_creds = NULL;
 437                         }
 438
 439                         cleanup_hosts (priv);
 440                 }
 441
 442                 break;
 443         case PROP_ASYNC_CONTEXT:
 444                 priv->async_context = g_value_get_pointer (value);
 445                 if (priv->async_context)
 446                         g_main_context_ref (priv->async_context);
 447                 break;
 448         case PROP_TIMEOUT:
 449                 priv->timeout = g_value_get_uint (value);
 450                 break;
 451         default:
 452                 break;
 453         }
 454 }
 455
 456 static void
 457 get_property (GObject *object, guint prop_id,
 458               GValue *value, GParamSpec *pspec)
 459 {
 460         SoupSession *session = SOUP_SESSION (object);
 461         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 462
 463         switch (prop_id) {
 464         case PROP_PROXY_URI:
 465                 g_value_set_pointer (value, priv->proxy_uri ?
 466                                      soup_uri_copy (priv->proxy_uri) :
 467                                      NULL);
 468                 break;
 469         case PROP_MAX_CONNS:
 470                 g_value_set_int (value, priv->max_conns);
 471                 break;
 472         case PROP_MAX_CONNS_PER_HOST:
 473                 g_value_set_int (value, priv->max_conns_per_host);
 474                 break;
 475         case PROP_USE_NTLM:
 476                 g_value_set_boolean (value, priv->use_ntlm);
 477                 break;
 478         case PROP_SSL_CA_FILE:
 479                 g_value_set_string (value, priv->ssl_ca_file);
 480                 break;
 481         case PROP_ASYNC_CONTEXT:
 482                 g_value_set_pointer (value, priv->async_context ? g_main_context_ref (priv->async_context) : NULL);
 483                 break;
 484         case PROP_TIMEOUT:
 485                 g_value_set_uint (value, priv->timeout);
 486                 break;
 487         default:
 488                 break;
 489         }
 490 }
 491
 492
 493 /**
 494  * soup_session_add_filter:
 495  * @session: a #SoupSession
 496  * @filter: an object implementing the #SoupMessageFilter interface
 497  *
 498  * Adds @filter to @session's list of message filters to be applied to
 499  * all messages.
 500  **/
 501 void
 502 soup_session_add_filter (SoupSession *session, SoupMessageFilter *filter)
 503 {
 504         SoupSessionPrivate *priv;
 505
 506         g_return_if_fail (SOUP_IS_SESSION (session));
 507         g_return_if_fail (SOUP_IS_MESSAGE_FILTER (filter));
 508         priv = SOUP_SESSION_GET_PRIVATE (session);
 509
 510         g_object_ref (filter);
 511         priv->filters = g_slist_prepend (priv->filters, filter);
 512 }
 513
 514 /**
 515  * soup_session_remove_filter:
 516  * @session: a #SoupSession
 517  * @filter: an object implementing the #SoupMessageFilter interface
 518  *
 519  * Removes @filter from @session's list of message filters
 520  **/
 521 void
 522 soup_session_remove_filter (SoupSession *session, SoupMessageFilter *filter)
 523 {
 524         SoupSessionPrivate *priv;
 525
 526         g_return_if_fail (SOUP_IS_SESSION (session));
 527         g_return_if_fail (SOUP_IS_MESSAGE_FILTER (filter));
 528         priv = SOUP_SESSION_GET_PRIVATE (session);
 529
 530         priv->filters = g_slist_remove (priv->filters, filter);
 531         g_object_unref (filter);
 532 }
 533
 534 /**
 535  * soup_session_get_async_context:
 536  * @session: a #SoupSession
 537  *
 538  * Gets @session's async_context. This does not add a ref to the
 539  * context, so you will need to ref it yourself if you want it to
 540  * outlive its session.
 541  *
 542  * Return value: @session's #GMainContext, which may be %NULL
 543  **/
 544 GMainContext *
 545 soup_session_get_async_context (SoupSession *session)
 546 {
 547         SoupSessionPrivate *priv;
 548
 549         g_return_val_if_fail (SOUP_IS_SESSION (session), NULL);
 550         priv = SOUP_SESSION_GET_PRIVATE (session);
 551
 552         return priv->async_context;
 553 }
 554
 555 /* Hosts */
 556 static guint
 557 host_uri_hash (gconstpointer key)
 558 {
 559         const SoupUri *uri = key;
 560
 561         return (uri->protocol << 16) + uri->port + g_str_hash (uri->host);
 562 }
 563
 564 static gboolean
 565 host_uri_equal (gconstpointer v1, gconstpointer v2)
 566 {
 567         const SoupUri *one = v1;
 568         const SoupUri *two = v2;
 569
 570         if (one->protocol != two->protocol)
 571                 return FALSE;
 572         if (one->port != two->port)
 573                 return FALSE;
 574
 575         return strcmp (one->host, two->host) == 0;
 576 }
 577
 578 static SoupSessionHost *
 579 soup_session_host_new (SoupSession *session, const SoupUri *source_uri)
 580 {
 581         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 582         SoupSessionHost *host;
 583
 584         host = g_new0 (SoupSessionHost, 1);
 585         host->root_uri = soup_uri_copy_root (source_uri);
 586
 587         if (host->root_uri->protocol == SOUP_PROTOCOL_HTTPS &&
 588             !priv->ssl_creds) {
 589                 priv->ssl_creds =
 590                         soup_ssl_get_client_credentials (priv->ssl_ca_file);
 591         }
 592
 593         return host;
 594 }
 595
 596 /* Note: get_host_for_message doesn't lock the host_lock. The caller
 597  * must do it itself if there's a chance the host doesn't already
 598  * exist.
 599  */
 600 static SoupSessionHost *
 601 get_host_for_message (SoupSession *session, SoupMessage *msg)
 602 {
 603         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 604         SoupSessionHost *host;
 605         const SoupUri *source = soup_message_get_uri (msg);
 606
 607         host = g_hash_table_lookup (priv->hosts, source);
 608         if (host)
 609                 return host;
 610
 611         host = soup_session_host_new (session, source);
 612         g_hash_table_insert (priv->hosts, host->root_uri, host);
 613
 614         return host;
 615 }
 616
 617 /* Note: get_proxy_host doesn't lock the host_lock. The caller must do
 618  * it itself if there's a chance the host doesn't already exist.
 619  */
 620 static SoupSessionHost *
 621 get_proxy_host (SoupSession *session)
 622 {
 623         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 624
 625         if (priv->proxy_host || !priv->proxy_uri)
 626                 return priv->proxy_host;
 627
 628         priv->proxy_host =
 629                 soup_session_host_new (session, priv->proxy_uri);
 630         return priv->proxy_host;
 631 }
 632
 633 static void
 634 free_realm (gpointer path, gpointer scheme_realm, gpointer data)
 635 {
 636         g_free (path);
 637         g_free (scheme_realm);
 638 }
 639
 640 static void
 641 free_auth (gpointer scheme_realm, gpointer auth, gpointer data)
 642 {
 643         g_free (scheme_realm);
 644         g_object_unref (auth);
 645 }
 646
 647 static void
 648 free_host (SoupSessionHost *host)
 649 {
 650         while (host->connections) {
 651                 SoupConnection *conn = host->connections->data;
 652
 653                 host->connections = g_slist_remove (host->connections, conn);
 654                 soup_connection_disconnect (conn);
 655         }
 656
 657         if (host->auth_realms) {
 658                 g_hash_table_foreach (host->auth_realms, free_realm, NULL);
 659                 g_hash_table_destroy (host->auth_realms);
 660         }
 661         if (host->auths) {
 662                 g_hash_table_foreach (host->auths, free_auth, NULL);
 663                 g_hash_table_destroy (host->auths);
 664         }
 665
 666         soup_uri_free (host->root_uri);
 667         g_free (host);
 668 }
 669
 670 /* Authentication */
 671
 672 static SoupAuth *
 673 lookup_auth (SoupSession *session, SoupMessage *msg, gboolean proxy)
 674 {
 675         SoupSessionHost *host;
 676         char *path, *dir;
 677         const char *realm, *const_path;
 678
 679         if (proxy) {
 680                 host = get_proxy_host (session);
 681                 const_path = "/";
 682         } else {
 683                 host = get_host_for_message (session, msg);
 684                 const_path = soup_message_get_uri (msg)->path;
 685
 686                 if (!const_path)
 687                         const_path = "/";
 688         }
 689         g_return_val_if_fail (host != NULL, NULL);
 690
 691         if (!host->auth_realms)
 692                 return NULL;
 693
 694         path = g_strdup (const_path);
 695         dir = path;
 696         do {
 697                 realm = g_hash_table_lookup (host->auth_realms, path);
 698                 if (realm)
 699                         break;
 700
 701                 dir = strrchr (path, '/');
 702                 if (dir) {
 703                         if (dir[1])
 704                                 dir[1] = '\0';
 705                         else
 706                                 *dir = '\0';
 707                 }
 708         } while (dir);
 709
 710         g_free (path);
 711         if (realm)
 712                 return g_hash_table_lookup (host->auths, realm);
 713         else
 714                 return NULL;
 715 }
 716
 717 static void
 718 invalidate_auth (SoupSessionHost *host, SoupAuth *auth)
 719 {
 720         char *info;
 721         gpointer key, value;
 722
 723         info = soup_auth_get_info (auth);
 724         if (g_hash_table_lookup_extended (host->auths, info, &key, &value) &&
 725             auth == (SoupAuth *)value) {
 726                 g_hash_table_remove (host->auths, info);
 727                 g_free (key);
 728                 g_object_unref (auth);
 729         }
 730         g_free (info);
 731 }
 732
 733 static gboolean
 734 authenticate_auth (SoupSession *session, SoupAuth *auth,
 735                    SoupMessage *msg, gboolean prior_auth_failed,
 736                    gboolean proxy)
 737 {
 738         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 739         const SoupUri *uri;
 740         char *username = NULL, *password = NULL;
 741
 742         if (proxy)
 743                 uri = priv->proxy_uri;
 744         else
 745                 uri = soup_message_get_uri (msg);
 746
 747         if (uri->passwd && !prior_auth_failed) {
 748                 soup_auth_authenticate (auth, uri->user, uri->passwd);
 749                 return TRUE;
 750         }
 751
 752         g_signal_emit (session, signals[prior_auth_failed ? REAUTHENTICATE : AUTHENTICATE], 0,
 753                        msg, soup_auth_get_scheme_name (auth),
 754                        soup_auth_get_realm (auth),
 755                        &username, &password);
 756         if (username || password)
 757                 soup_auth_authenticate (auth, username, password);
 758         if (username)
 759                 g_free (username);
 760         if (password) {
 761                 memset (password, 0, strlen (password));
 762                 g_free (password);
 763         }
 764
 765         return soup_auth_is_authenticated (auth);
 766 }
 767
 768 static gboolean
 769 update_auth_internal (SoupSession *session, SoupMessage *msg,
 770                       const GSList *headers, gboolean proxy)
 771 {
 772         SoupSessionHost *host;
 773         SoupAuth *new_auth, *prior_auth, *old_auth;
 774         gpointer old_path, old_auth_info;
 775         const SoupUri *msg_uri;
 776         const char *path;
 777         char *auth_info;
 778         GSList *pspace, *p;
 779         gboolean prior_auth_failed = FALSE;
 780
 781         if (proxy)
 782                 host = get_proxy_host (session);
 783         else
 784                 host = get_host_for_message (session, msg);
 785
 786         g_return_val_if_fail (host != NULL, FALSE);
 787
 788         /* Try to construct a new auth from the headers; if we can't,
 789          * there's no way we'll be able to authenticate.
 790          */
 791         msg_uri = soup_message_get_uri (msg);
 792         new_auth = soup_auth_new_from_header_list (headers);
 793         if (!new_auth)
 794                 return FALSE;
 795
 796         auth_info = soup_auth_get_info (new_auth);
 797
 798         /* See if this auth is the same auth we used last time */
 799         prior_auth = proxy ? soup_message_get_proxy_auth (msg) : soup_message_get_auth (msg);
 800         if (prior_auth) {
 801                 char *old_auth_info = soup_auth_get_info (prior_auth);
 802
 803                 if (!strcmp (old_auth_info, auth_info)) {
 804                         /* The server didn't like the username/password we
 805                          * provided before. Invalidate it and note this fact.
 806                          */
 807                         invalidate_auth (host, prior_auth);
 808                         prior_auth_failed = TRUE;
 809                 }
 810                 g_free (old_auth_info);
 811         }
 812
 813         if (!host->auth_realms) {
 814                 host->auth_realms = g_hash_table_new (g_str_hash, g_str_equal);
 815                 host->auths = g_hash_table_new (g_str_hash, g_str_equal);
 816         }
 817
 818         /* Record where this auth realm is used. RFC 2617 is somewhat
 819          * unclear about the scope of protection spaces with regard to
 820          * proxies. The only mention of it is as an aside in section
 821          * 3.2.1, where it is defining the fields of a Digest
 822          * challenge and says that the protection space is always the
 823          * entire proxy. Is this the case for all authentication
 824          * schemes or just Digest? Who knows, but we're assuming all.
 825          */
 826         if (proxy)
 827                 pspace = g_slist_prepend (NULL, g_strdup (""));
 828         else
 829                 pspace = soup_auth_get_protection_space (new_auth, msg_uri);
 830
 831         for (p = pspace; p; p = p->next) {
 832                 path = p->data;
 833                 if (g_hash_table_lookup_extended (host->auth_realms, path,
 834                                                   &old_path, &old_auth_info)) {
 835                         g_hash_table_remove (host->auth_realms, old_path);
 836                         g_free (old_path);
 837                         g_free (old_auth_info);
 838                 }
 839
 840                 g_hash_table_insert (host->auth_realms,
 841                                      g_strdup (path), g_strdup (auth_info));
 842         }
 843         soup_auth_free_protection_space (new_auth, pspace);
 844
 845         /* Now, make sure the auth is recorded. (If there's a
 846          * pre-existing auth, we keep that rather than the new one,
 847          * since the old one might already be authenticated.)
 848          */
 849         old_auth = g_hash_table_lookup (host->auths, auth_info);
 850         if (old_auth) {
 851                 g_free (auth_info);
 852                 g_object_unref (new_auth);
 853                 new_auth = old_auth;
 854         } else
 855                 g_hash_table_insert (host->auths, auth_info, new_auth);
 856
 857         /* If we need to authenticate, try to do it. */
 858         if (!soup_auth_is_authenticated (new_auth)) {
 859                 return authenticate_auth (session, new_auth,
 860                                           msg, prior_auth_failed, proxy);
 861         }
 862
 863         /* Otherwise we're good. */
 864         return TRUE;
 865 }
 866
 867 static void
 868 connection_authenticate (SoupConnection *conn, SoupMessage *msg,
 869                          const char *auth_type, const char *auth_realm,
 870                          char **username, char **password, gpointer session)
 871 {
 872         g_signal_emit (session, signals[AUTHENTICATE], 0,
 873                        msg, auth_type, auth_realm, username, password);
 874 }
 875
 876 static void
 877 connection_reauthenticate (SoupConnection *conn, SoupMessage *msg,
 878                            const char *auth_type, const char *auth_realm,
 879                            char **username, char **password,
 880                            gpointer user_data)
 881 {
 882         g_signal_emit (conn, signals[REAUTHENTICATE], 0,
 883                        msg, auth_type, auth_realm, username, password);
 884 }
 885
 886
 887 static void
 888 authorize_handler (SoupMessage *msg, gpointer user_data)
 889 {
 890         SoupSession *session = user_data;
 891         const GSList *headers;
 892         gboolean proxy;
 893
 894         if (msg->status_code == SOUP_STATUS_PROXY_AUTHENTICATION_REQUIRED) {
 895                 headers = soup_message_get_header_list (msg->response_headers,
 896                                                         "Proxy-Authenticate");
 897                 proxy = TRUE;
 898         } else {
 899                 headers = soup_message_get_header_list (msg->response_headers,
 900                                                         "WWW-Authenticate");
 901                 proxy = FALSE;
 902         }
 903         if (!headers)
 904                 return;
 905
 906         if (update_auth_internal (session, msg, headers, proxy))
 907                 soup_session_requeue_message (session, msg);
 908 }
 909
 910 static void
 911 redirect_handler (SoupMessage *msg, gpointer user_data)
 912 {
 913         SoupSession *session = user_data;
 914         const char *new_loc;
 915         SoupUri *new_uri;
 916
 917         new_loc = soup_message_get_header (msg->response_headers, "Location");
 918         if (!new_loc)
 919                 return;
 920
 921         /* Location is supposed to be an absolute URI, but some sites
 922          * are lame, so we use soup_uri_new_with_base().
 923          */
 924         new_uri = soup_uri_new_with_base (soup_message_get_uri (msg), new_loc);
 925         if (!new_uri) {
 926                 soup_message_set_status_full (msg,
 927                                               SOUP_STATUS_MALFORMED,
 928                                               "Invalid Redirect URL");
 929                 return;
 930         }
 931
 932         soup_message_set_uri (msg, new_uri);
 933         soup_uri_free (new_uri);
 934
 935         soup_session_requeue_message (session, msg);
 936 }
 937
 938 static void
 939 add_auth (SoupSession *session, SoupMessage *msg, gboolean proxy)
 940 {
 941         SoupAuth *auth;
 942
 943         auth = lookup_auth (session, msg, proxy);
 944         if (auth && !soup_auth_is_authenticated (auth)) {
 945                 if (!authenticate_auth (session, auth, msg, FALSE, proxy))
 946                         auth = NULL;
 947         }
 948
 949         if (proxy)
 950                 soup_message_set_proxy_auth (msg, auth);
 951         else
 952                 soup_message_set_auth (msg, auth);
 953 }
 954
 955 static void
 956 setup_message (SoupMessageFilter *filter, SoupMessage *msg)
 957 {
 958         SoupSession *session = SOUP_SESSION (filter);
 959         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
 960         GSList *f;
 961
 962         for (f = priv->filters; f; f = f->next) {
 963                 filter = f->data;
 964                 soup_message_filter_setup_message (filter, msg);
 965         }
 966
 967         add_auth (session, msg, FALSE);
 968         soup_message_add_status_code_handler (
 969                 msg, SOUP_STATUS_UNAUTHORIZED,
 970                 SOUP_HANDLER_POST_BODY,
 971                 authorize_handler, session);
 972
 973         if (priv->proxy_uri) {
 974                 add_auth (session, msg, TRUE);
 975                 soup_message_add_status_code_handler  (
 976                         msg, SOUP_STATUS_PROXY_UNAUTHORIZED,
 977                         SOUP_HANDLER_POST_BODY,
 978                         authorize_handler, session);
 979         }
 980 }
 981
 982 static void
 983 find_oldest_connection (gpointer key, gpointer host, gpointer data)
 984 {
 985         SoupConnection *conn = key, **oldest = data;
 986
 987         /* Don't prune a connection that is currently in use, or
 988          * hasn't been used yet.
 989          */
 990         if (soup_connection_is_in_use (conn) ||
 991             soup_connection_last_used (conn) == 0)
 992                 return;
 993
 994         if (!*oldest || (soup_connection_last_used (conn) <
 995                          soup_connection_last_used (*oldest)))
 996                 *oldest = conn;
 997 }
 998
 999 /**
1000  * soup_session_try_prune_connection:
1001  * @session: a #SoupSession
1002  *
1003  * Finds the least-recently-used idle connection in @session and closes
1004  * it.
1005  *
1006  * Return value: %TRUE if a connection was closed, %FALSE if there are
1007  * no idle connections.
1008  **/
1009 gboolean
1010 soup_session_try_prune_connection (SoupSession *session)
1011 {
1012         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
1013         SoupConnection *oldest = NULL;
1014
1015         g_mutex_lock (priv->host_lock);
1016         g_hash_table_foreach (priv->conns, find_oldest_connection,
1017                               &oldest);
1018         if (oldest) {
1019                 /* Ref the connection before unlocking the mutex in
1020                  * case someone else tries to prune it too.
1021                  */
1022                 g_object_ref (oldest);
1023                 g_mutex_unlock (priv->host_lock);
1024                 soup_connection_disconnect (oldest);
1025                 g_object_unref (oldest);
1026                 return TRUE;
1027         } else {
1028                 g_mutex_unlock (priv->host_lock);
1029                 return FALSE;
1030         }
1031 }
1032
1033 static void
1034 connection_disconnected (SoupConnection *conn, gpointer user_data)
1035 {
1036         SoupSession *session = user_data;
1037         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
1038         SoupSessionHost *host;
1039
1040         g_mutex_lock (priv->host_lock);
1041
1042         host = g_hash_table_lookup (priv->conns, conn);
1043         if (host) {
1044                 g_hash_table_remove (priv->conns, conn);
1045                 host->connections = g_slist_remove (host->connections, conn);
1046                 host->num_conns--;
1047         }
1048
1049         g_signal_handlers_disconnect_by_func (conn, connection_disconnected, session);
1050         priv->num_conns--;
1051
1052         g_mutex_unlock (priv->host_lock);
1053         g_object_unref (conn);
1054 }
1055
1056 static void
1057 connect_result (SoupConnection *conn, guint status, gpointer user_data)
1058 {
1059         SoupSession *session = user_data;
1060         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
1061         SoupSessionHost *host;
1062         SoupMessageQueueIter iter;
1063         SoupMessage *msg;
1064
1065         g_mutex_lock (priv->host_lock);
1066
1067         host = g_hash_table_lookup (priv->conns, conn);
1068         if (!host) {
1069                 g_mutex_unlock (priv->host_lock);
1070                 return;
1071         }
1072
1073         if (status == SOUP_STATUS_OK) {
1074                 soup_connection_reserve (conn);
1075                 host->connections = g_slist_prepend (host->connections, conn);
1076                 g_mutex_unlock (priv->host_lock);
1077                 return;
1078         }
1079
1080         /* The connection failed. */
1081         g_mutex_unlock (priv->host_lock);
1082         connection_disconnected (conn, session);
1083
1084         if (host->connections) {
1085                 /* Something went wrong this time, but we have at
1086                  * least one open connection to this host. So just
1087                  * leave the message in the queue so it can use that
1088                  * connection once it's free.
1089                  */
1090                 return;
1091         }
1092
1093         /* There are two possibilities: either status is
1094          * SOUP_STATUS_TRY_AGAIN, in which case the session implementation
1095          * will create a new connection (and all we need to do here
1096          * is downgrade the message from CONNECTING to QUEUED); or
1097          * status is something else, probably CANT_CONNECT or
1098          * CANT_RESOLVE or the like, in which case we need to cancel
1099          * any messages waiting for this host, since they're out
1100          * of luck.
1101          */
1102         for (msg = soup_message_queue_first (session->queue, &iter); msg; msg = soup_message_queue_next (session->queue, &iter)) {
1103                 if (get_host_for_message (session, msg) == host) {
1104                         if (status == SOUP_STATUS_TRY_AGAIN) {
1105                                 if (msg->status == SOUP_MESSAGE_STATUS_CONNECTING)
1106                                         msg->status = SOUP_MESSAGE_STATUS_QUEUED;
1107                         } else {
1108                                 soup_message_set_status (msg, status);
1109                                 soup_session_cancel_message (session, msg);
1110                         }
1111                 }
1112         }
1113 }
1114
1115 /**
1116  * soup_session_get_connection:
1117  * @session: a #SoupSession
1118  * @msg: a #SoupMessage
1119  * @try_pruning: on return, whether or not to try pruning a connection
1120  * @is_new: on return, %TRUE if the returned connection is new and not
1121  * yet connected
1122  *
1123  * Tries to find or create a connection for @msg; this is an internal
1124  * method for #SoupSession subclasses.
1125  *
1126  * If there is an idle connection to the relevant host available, then
1127  * that connection will be returned (with *@is_new set to %FALSE). The
1128  * connection will be marked "reserved", so the caller must call
1129  * soup_connection_release() if it ends up not using the connection
1130  * right away.
1131  *
1132  * If there is no idle connection available, but it is possible to
1133  * create a new connection, then one will be created and returned,
1134  * with *@is_new set to %TRUE. The caller MUST then call
1135  * soup_connection_connect_sync() or soup_connection_connect_async()
1136  * to connect it. If the connection attempt succeeds, the connection
1137  * will be marked "reserved" and added to @session's connection pool
1138  * once it connects. If the connection attempt fails, the connection
1139  * will be unreffed.
1140  *
1141  * If no connection is available and a new connection cannot be made,
1142  * soup_session_get_connection() will return %NULL. If @session has
1143  * the maximum number of open connections open, but does not have the
1144  * maximum number of per-host connections open to the relevant host,
1145  * then *@try_pruning will be set to %TRUE. In this case, the caller
1146  * can call soup_session_try_prune_connection() to close an idle
1147  * connection, and then try soup_session_get_connection() again. (If
1148  * calling soup_session_try_prune_connection() wouldn't help, then
1149  * *@try_pruning is left untouched; it is NOT set to %FALSE.)
1150  *
1151  * Return value: a #SoupConnection, or %NULL
1152  **/
1153 SoupConnection *
1154 soup_session_get_connection (SoupSession *session, SoupMessage *msg,
1155                              gboolean *try_pruning, gboolean *is_new)
1156 {
1157         SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
1158         SoupConnection *conn;
1159         SoupSessionHost *host;
1160         GSList *conns;
1161
1162         g_mutex_lock (priv->host_lock);
1163
1164         host = get_host_for_message (session, msg);
1165         for (conns = host->connections; conns; conns = conns->next) {
1166                 if (!soup_connection_is_in_use (conns->data)) {
1167                         soup_connection_reserve (conns->data);
1168                         g_mutex_unlock (priv->host_lock);
1169                         *is_new = FALSE;
1170                         return conns->data;
1171                 }
1172         }
1173
1174         if (msg->status == SOUP_MESSAGE_STATUS_CONNECTING) {
1175                 /* We already started a connection for this
1176                  * message, so don't start another one.
1177                  */
1178                 g_mutex_unlock (priv->host_lock);
1179                 return NULL;
1180         }
1181
1182         if (host->num_conns >= priv->max_conns_per_host) {
1183                 g_mutex_unlock (priv->host_lock);
1184                 return NULL;
1185         }
1186
1187         if (priv->num_conns >= priv->max_conns) {
1188                 *try_pruning = TRUE;
1189                 g_mutex_unlock (priv->host_lock);
1190                 return NULL;
1191         }
1192
1193         /* Make sure priv->proxy_host gets set now while
1194          * we have the host_lock.
1195          */
1196         if (priv->proxy_uri)
1197                 get_proxy_host (session);
1198
1199         conn = g_object_new (
1200                 (priv->use_ntlm ?
1201                  SOUP_TYPE_CONNECTION_NTLM : SOUP_TYPE_CONNECTION),
1202                 SOUP_CONNECTION_ORIGIN_URI, host->root_uri,
1203                 SOUP_CONNECTION_PROXY_URI, priv->proxy_uri,
1204                 SOUP_CONNECTION_SSL_CREDENTIALS, priv->ssl_creds,
1205                 SOUP_CONNECTION_MESSAGE_FILTER, session,
1206                 SOUP_CONNECTION_ASYNC_CONTEXT, priv->async_context,
1207                 SOUP_CONNECTION_TIMEOUT, priv->timeout,
1208                 NULL);
1209         g_signal_connect (conn, "connect_result",
1210                           G_CALLBACK (connect_result),
1211                           session);
1212         g_signal_connect (conn, "disconnected",
1213                           G_CALLBACK (connection_disconnected),
1214                           session);
1215         g_signal_connect (conn, "authenticate",
1216                           G_CALLBACK (connection_authenticate),
1217                           session);
1218         g_signal_connect (conn, "reauthenticate",
1219                           G_CALLBACK (connection_reauthenticate),
1220                           session);
1221
1222         g_hash_table_insert (priv->conns, conn, host);
1223
1224         /* We increment the connection counts so it counts against the
1225          * totals, but we don't add it to the host's connection list
1226          * yet, since it's not ready for use.
1227          */
1228         priv->num_conns++;
1229         host->num_conns++;
1230
1231         /* Mark the request as connecting, so we don't try to open
1232          * another new connection for it while waiting for this one.
1233          */
1234         msg->status = SOUP_MESSAGE_STATUS_CONNECTING;
1235
1236         g_mutex_unlock (priv->host_lock);
1237         *is_new = TRUE;
1238         return conn;
1239 }
1240
1241 static void
1242 message_finished (SoupMessage *msg, gpointer user_data)
1243 {
1244         SoupSession *session = user_data;
1245
1246         if (!SOUP_MESSAGE_IS_STARTING (msg)) {
1247                 soup_message_queue_remove_message (session->queue, msg);
1248                 g_signal_handlers_disconnect_by_func (msg, message_finished, session);
1249         }
1250 }
1251
1252 static void
1253 queue_message (SoupSession *session, SoupMessage *msg,
1254                SoupMessageCallbackFn callback, gpointer user_data)
1255 {
1256         g_signal_connect_after (msg, "finished",
1257                                 G_CALLBACK (message_finished), session);
1258
1259         if (!(soup_message_get_flags (msg) & SOUP_MESSAGE_NO_REDIRECT)) {
1260                 soup_message_add_status_class_handler (
1261                         msg, SOUP_STATUS_CLASS_REDIRECT,
1262                         SOUP_HANDLER_POST_BODY,
1263                         redirect_handler, session);
1264         }
1265
1266         msg->status = SOUP_MESSAGE_STATUS_QUEUED;
1267         soup_message_queue_append (session->queue, msg);
1268 }
1269
1270 /**
1271  * soup_session_queue_message:
1272  * @session: a #SoupSession
1273  * @msg: the message to queue
1274  * @callback: a #SoupMessageCallbackFn which will be called after the
1275  * message completes or when an unrecoverable error occurs.
1276  * @user_data: a pointer passed to @callback.
1277  *
1278  * Queues the message @msg for sending. All messages are processed
1279  * while the glib main loop runs. If @msg has been processed before,
1280  * any resources related to the time it was last sent are freed.
1281  *
1282  * Upon message completion, the callback specified in @callback will
1283  * be invoked (in the thread associated with @session's async
1284  * context). If after returning from this callback the message has not
1285  * been requeued, @msg will be unreffed.
1286  */
1287 void
1288 soup_session_queue_message (SoupSession *session, SoupMessage *msg,
1289                             SoupMessageCallbackFn callback, gpointer user_data)
1290 {
1291         g_return_if_fail (SOUP_IS_SESSION (session));
1292         g_return_if_fail (SOUP_IS_MESSAGE (msg));
1293
1294         SOUP_SESSION_GET_CLASS (session)->queue_message (session, msg,
1295                                                          callback, user_data);
1296 }
1297
1298 static void
1299 requeue_message (SoupSession *session, SoupMessage *msg)
1300 {
1301         msg->status = SOUP_MESSAGE_STATUS_QUEUED;
1302 }
1303
1304 /**
1305  * soup_session_requeue_message:
1306  * @session: a #SoupSession
1307  * @msg: the message to requeue
1308  *
1309  * This causes @msg to be placed back on the queue to be attempted
1310  * again.
1311  **/
1312 void
1313 soup_session_requeue_message (SoupSession *session, SoupMessage *msg)
1314 {
1315         g_return_if_fail (SOUP_IS_SESSION (session));
1316         g_return_if_fail (SOUP_IS_MESSAGE (msg));
1317
1318         SOUP_SESSION_GET_CLASS (session)->requeue_message (session, msg);
1319 }
1320
1321
1322 /**
1323  * soup_session_send_message:
1324  * @session: a #SoupSession
1325  * @msg: the message to send
1326  *
1327  * Synchronously send @msg. This call will not return until the
1328  * transfer is finished successfully or there is an unrecoverable
1329  * error.
1330  *
1331  * @msg is not freed upon return.
1332  *
1333  * Return value: the HTTP status code of the response
1334  */
1335 guint
1336 soup_session_send_message (SoupSession *session, SoupMessage *msg)
1337 {
1338         g_return_val_if_fail (SOUP_IS_SESSION (session), SOUP_STATUS_MALFORMED);
1339         g_return_val_if_fail (SOUP_IS_MESSAGE (msg), SOUP_STATUS_MALFORMED);
1340
1341         return SOUP_SESSION_GET_CLASS (session)->send_message (session, msg);
1342 }
1343
1344
1345 static void
1346 cancel_message (SoupSession *session, SoupMessage *msg)
1347 {
1348         soup_message_queue_remove_message (session->queue, msg);
1349         soup_message_finished (msg);
1350 }
1351
1352 /**
1353  * soup_session_cancel_message:
1354  * @session: a #SoupSession
1355  * @msg: the message to cancel
1356  *
1357  * Causes @session to immediately finish processing @msg. You should
1358  * set a status code on @msg with soup_message_set_status() before
1359  * calling this function.
1360  **/
1361 void
1362 soup_session_cancel_message (SoupSession *session, SoupMessage *msg)
1363 {
1364         g_return_if_fail (SOUP_IS_SESSION (session));
1365         g_return_if_fail (SOUP_IS_MESSAGE (msg));
1366
1367         SOUP_SESSION_GET_CLASS (session)->cancel_message (session, msg);
1368 }
1369
1370 static void
1371 gather_conns (gpointer key, gpointer host, gpointer data)
1372 {
1373         SoupConnection *conn = key;
1374         GSList **conns = data;
1375
1376         *conns = g_slist_prepend (*conns, conn);
1377 }
1378
1379 /**
1380  * soup_session_abort:
1381  * @session: the session
1382  *
1383  * Cancels all pending requests in @session.
1384  **/
1385 void
1386 soup_session_abort (SoupSession *session)
1387 {
1388         SoupSessionPrivate *priv;
1389         SoupMessageQueueIter iter;
1390         SoupMessage *msg;
1391         GSList *conns, *c;
1392
1393         g_return_if_fail (SOUP_IS_SESSION (session));
1394         priv = SOUP_SESSION_GET_PRIVATE (session);
1395
1396         for (msg = soup_message_queue_first (session->queue, &iter); msg; msg = soup_message_queue_next (session->queue, &iter)) {
1397                 soup_message_set_status (msg, SOUP_STATUS_CANCELLED);
1398                 soup_session_cancel_message (session, msg);
1399         }
1400
1401         /* Close all connections */
1402         g_mutex_lock (priv->host_lock);
1403         conns = NULL;
1404         g_hash_table_foreach (priv->conns, gather_conns, &conns);
1405
1406         for (c = conns; c; c = c->next)
1407                 g_object_ref (c->data);
1408         g_mutex_unlock (priv->host_lock);
1409         for (c = conns; c; c = c->next) {
1410                 soup_connection_disconnect (c->data);
1411                 g_object_unref (c->data);
1412         }
1413
1414         g_slist_free (conns);
1415 }