libempathy/empathy-log-store-empathy.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2003-2007 Imendio AB
   4  * Copyright (C) 2007-2010 Collabora Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  19  * Boston, MA  02110-1301  USA
  20  *
  21  * Authors: Xavier Claessens <xclaesse@gmail.com>
  22  *          Jonny Lamb <jonny.lamb@collabora.co.uk>
  23  */
  24
  25 #include <config.h>
  26
  27 #include <string.h>
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <glib/gstdio.h>
  31
  32 #include <telepathy-glib/account-manager.h>
  33 #include <telepathy-glib/util.h>
  34 #include <telepathy-glib/defs.h>
  35
  36 #include "empathy-log-store.h"
  37 #include "empathy-log-store-empathy.h"
  38 #include "empathy-log-manager.h"
  39 #include "empathy-contact.h"
  40 #include "empathy-time.h"
  41 #include "empathy-utils.h"
  42
  43 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
  44 #include "empathy-debug.h"
  45
  46 #define LOG_DIR_CREATE_MODE       (S_IRUSR | S_IWUSR | S_IXUSR)
  47 #define LOG_FILE_CREATE_MODE      (S_IRUSR | S_IWUSR)
  48 #define LOG_DIR_CHATROOMS         "chatrooms"
  49 #define LOG_FILENAME_SUFFIX       ".log"
  50 #define LOG_TIME_FORMAT_FULL      "%Y%m%dT%H:%M:%S"
  51 #define LOG_TIME_FORMAT           "%Y%m%d"
  52 #define LOG_HEADER \
  53     "<?xml version='1.0' encoding='utf-8'?>\n" \
  54     "<?xml-stylesheet type=\"text/xsl\" href=\"empathy-log.xsl\"?>\n" \
  55     "<log>\n"
  56
  57 #define LOG_FOOTER \
  58     "</log>\n"
  59
  60
  61 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyLogStoreEmpathy)
  62 typedef struct
  63 {
  64   gchar *basedir;
  65   gchar *name;
  66   TpAccountManager *account_manager;
  67 } EmpathyLogStoreEmpathyPriv;
  68
  69 static void log_store_iface_init (gpointer g_iface,gpointer iface_data);
  70
  71 G_DEFINE_TYPE_WITH_CODE (EmpathyLogStoreEmpathy, empathy_log_store_empathy,
  72     G_TYPE_OBJECT, G_IMPLEMENT_INTERFACE (EMPATHY_TYPE_LOG_STORE,
  73       log_store_iface_init));
  74
  75 static void
  76 log_store_empathy_finalize (GObject *object)
  77 {
  78   EmpathyLogStoreEmpathy *self = EMPATHY_LOG_STORE_EMPATHY (object);
  79   EmpathyLogStoreEmpathyPriv *priv = GET_PRIV (self);
  80
  81   g_object_unref (priv->account_manager);
  82   g_free (priv->basedir);
  83   g_free (priv->name);
  84 }
  85
  86 static void
  87 empathy_log_store_empathy_class_init (EmpathyLogStoreEmpathyClass *klass)
  88 {
  89   GObjectClass *object_class = G_OBJECT_CLASS (klass);
  90
  91   object_class->finalize = log_store_empathy_finalize;
  92
  93   g_type_class_add_private (object_class, sizeof (EmpathyLogStoreEmpathyPriv));
  94 }
  95
  96 static void
  97 empathy_log_store_empathy_init (EmpathyLogStoreEmpathy *self)
  98 {
  99   EmpathyLogStoreEmpathyPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
 100       EMPATHY_TYPE_LOG_STORE_EMPATHY, EmpathyLogStoreEmpathyPriv);
 101
 102   self->priv = priv;
 103
 104   priv->basedir = g_build_path (G_DIR_SEPARATOR_S, g_get_user_data_dir (),
 105     PACKAGE_NAME, "logs", NULL);
 106
 107   priv->name = g_strdup ("Empathy");
 108   priv->account_manager = tp_account_manager_dup ();
 109 }
 110
 111 static gchar *
 112 log_store_account_to_dirname (TpAccount *account)
 113 {
 114   const gchar *name;
 115
 116   name = tp_proxy_get_object_path (account);
 117   if (g_str_has_prefix (name, TP_ACCOUNT_OBJECT_PATH_BASE))
 118     name += strlen (TP_ACCOUNT_OBJECT_PATH_BASE);
 119
 120   return g_strdelimit (g_strdup (name), "/", '_');
 121 }
 122
 123
 124 static gchar *
 125 log_store_empathy_get_dir (EmpathyLogStore *self,
 126                            TpAccount *account,
 127                            const gchar *chat_id,
 128                            gboolean chatroom)
 129 {
 130   gchar *basedir;
 131   gchar *escaped;
 132   EmpathyLogStoreEmpathyPriv *priv;
 133
 134   priv = GET_PRIV (self);
 135
 136   escaped = log_store_account_to_dirname (account);
 137
 138   if (chatroom)
 139     basedir = g_build_path (G_DIR_SEPARATOR_S, priv->basedir, escaped,
 140         LOG_DIR_CHATROOMS, chat_id, NULL);
 141   else
 142     basedir = g_build_path (G_DIR_SEPARATOR_S, priv->basedir,
 143         escaped, chat_id, NULL);
 144
 145   g_free (escaped);
 146
 147   return basedir;
 148 }
 149
 150 static gchar *
 151 log_store_empathy_get_timestamp_filename (void)
 152 {
 153   time_t t;
 154   gchar *time_str;
 155   gchar *filename;
 156
 157   t = empathy_time_get_current ();
 158   time_str = empathy_time_to_string_local (t, LOG_TIME_FORMAT);
 159   filename = g_strconcat (time_str, LOG_FILENAME_SUFFIX, NULL);
 160
 161   g_free (time_str);
 162
 163   return filename;
 164 }
 165
 166 static gchar *
 167 log_store_empathy_get_timestamp_from_message (EmpathyMessage *message)
 168 {
 169   time_t t;
 170
 171   t = empathy_message_get_timestamp (message);
 172
 173   /* We keep the timestamps in the messages as UTC. */
 174   return empathy_time_to_string_utc (t, LOG_TIME_FORMAT_FULL);
 175 }
 176
 177 static gchar *
 178 log_store_empathy_get_filename (EmpathyLogStore *self,
 179                                 TpAccount *account,
 180                                 const gchar *chat_id,
 181                                 gboolean chatroom)
 182 {
 183   gchar *basedir;
 184   gchar *timestamp;
 185   gchar *filename;
 186
 187   basedir = log_store_empathy_get_dir (self, account, chat_id, chatroom);
 188   timestamp = log_store_empathy_get_timestamp_filename ();
 189   filename = g_build_filename (basedir, timestamp, NULL);
 190
 191   g_free (basedir);
 192   g_free (timestamp);
 193
 194   return filename;
 195 }
 196
 197 static gboolean
 198 log_store_empathy_add_message (EmpathyLogStore *self,
 199                                const gchar *chat_id,
 200                                gboolean chatroom,
 201                                EmpathyMessage *message,
 202                                GError **error)
 203 {
 204   FILE *file;
 205   TpAccount *account;
 206   EmpathyContact *sender;
 207   const gchar *body_str;
 208   const gchar *str;
 209   EmpathyAvatar *avatar;
 210   gchar *avatar_token = NULL;
 211   gchar *filename;
 212   gchar *basedir;
 213   gchar *body;
 214   gchar *timestamp;
 215   gchar *contact_name;
 216   gchar *contact_id;
 217   TpChannelTextMessageType msg_type;
 218
 219   g_return_val_if_fail (EMPATHY_IS_LOG_STORE (self), FALSE);
 220   g_return_val_if_fail (chat_id != NULL, FALSE);
 221   g_return_val_if_fail (EMPATHY_IS_MESSAGE (message), FALSE);
 222
 223   sender = empathy_message_get_sender (message);
 224   account = empathy_contact_get_account (sender);
 225   body_str = empathy_message_get_body (message);
 226   msg_type = empathy_message_get_tptype (message);
 227
 228   if (EMP_STR_EMPTY (body_str))
 229     return FALSE;
 230
 231   filename = log_store_empathy_get_filename (self, account, chat_id, chatroom);
 232   basedir = g_path_get_dirname (filename);
 233   if (!g_file_test (basedir, G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))
 234     {
 235       DEBUG ("Creating directory:'%s'", basedir);
 236       g_mkdir_with_parents (basedir, LOG_DIR_CREATE_MODE);
 237     }
 238   g_free (basedir);
 239
 240   DEBUG ("Adding message: '%s' to file: '%s'", body_str, filename);
 241
 242   if (!g_file_test (filename, G_FILE_TEST_EXISTS))
 243     {
 244       file = g_fopen (filename, "w+");
 245       if (file != NULL)
 246         g_fprintf (file, LOG_HEADER);
 247
 248       g_chmod (filename, LOG_FILE_CREATE_MODE);
 249     }
 250   else
 251     {
 252       file = g_fopen (filename, "r+");
 253       if (file != NULL)
 254         fseek (file, - strlen (LOG_FOOTER), SEEK_END);
 255     }
 256
 257   body = g_markup_escape_text (body_str, -1);
 258   timestamp = log_store_empathy_get_timestamp_from_message (message);
 259
 260   str = empathy_contact_get_name (sender);
 261   contact_name = g_markup_escape_text (str, -1);
 262
 263   str = empathy_contact_get_id (sender);
 264   contact_id = g_markup_escape_text (str, -1);
 265
 266   avatar = empathy_contact_get_avatar (sender);
 267   if (avatar != NULL)
 268     avatar_token = g_markup_escape_text (avatar->token, -1);
 269
 270   g_fprintf (file,
 271        "<message time='%s' cm_id='%d' id='%s' name='%s' token='%s' isuser='%s' type='%s'>"
 272        "%s</message>\n" LOG_FOOTER, timestamp,
 273        empathy_message_get_id (message),
 274        contact_id, contact_name,
 275        avatar_token ? avatar_token : "",
 276        empathy_contact_is_user (sender) ? "true" : "false",
 277        empathy_message_type_to_str (msg_type), body);
 278
 279   fclose (file);
 280   g_free (filename);
 281   g_free (contact_id);
 282   g_free (contact_name);
 283   g_free (timestamp);
 284   g_free (body);
 285   g_free (avatar_token);
 286
 287   return TRUE;
 288 }
 289
 290 static gboolean
 291 log_store_empathy_exists (EmpathyLogStore *self,
 292                           TpAccount *account,
 293                           const gchar *chat_id,
 294                           gboolean chatroom)
 295 {
 296   gchar *dir;
 297   gboolean exists;
 298
 299   dir = log_store_empathy_get_dir (self, account, chat_id, chatroom);
 300   exists = g_file_test (dir, G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR);
 301   g_free (dir);
 302
 303   return exists;
 304 }
 305
 306 static GList *
 307 log_store_empathy_get_dates (EmpathyLogStore *self,
 308                              TpAccount *account,
 309                              const gchar *chat_id,
 310                              gboolean chatroom)
 311 {
 312   GList *dates = NULL;
 313   gchar *date;
 314   gchar *directory;
 315   GDir *dir;
 316   const gchar *filename;
 317   const gchar *p;
 318
 319   g_return_val_if_fail (EMPATHY_IS_LOG_STORE (self), NULL);
 320   g_return_val_if_fail (chat_id != NULL, NULL);
 321
 322   directory = log_store_empathy_get_dir (self, account, chat_id, chatroom);
 323   dir = g_dir_open (directory, 0, NULL);
 324   if (!dir)
 325     {
 326       DEBUG ("Could not open directory:'%s'", directory);
 327       g_free (directory);
 328       return NULL;
 329     }
 330
 331   DEBUG ("Collating a list of dates in:'%s'", directory);
 332
 333   while ((filename = g_dir_read_name (dir)) != NULL)
 334     {
 335       if (!g_str_has_suffix (filename, LOG_FILENAME_SUFFIX))
 336         continue;
 337
 338       p = strstr (filename, LOG_FILENAME_SUFFIX);
 339       date = g_strndup (filename, p - filename);
 340
 341       if (!date)
 342         continue;
 343
 344       if (!g_regex_match_simple ("\\d{8}", date, 0, 0))
 345         continue;
 346
 347       dates = g_list_insert_sorted (dates, date, (GCompareFunc) strcmp);
 348     }
 349
 350   g_free (directory);
 351   g_dir_close (dir);
 352
 353   DEBUG ("Parsed %d dates", g_list_length (dates));
 354
 355   return dates;
 356 }
 357
 358 static gchar *
 359 log_store_empathy_get_filename_for_date (EmpathyLogStore *self,
 360                                          TpAccount *account,
 361                                          const gchar *chat_id,
 362                                          gboolean chatroom,
 363                                          const gchar *date)
 364 {
 365   gchar *basedir;
 366   gchar *timestamp;
 367   gchar *filename;
 368
 369   basedir = log_store_empathy_get_dir (self, account, chat_id, chatroom);
 370   timestamp = g_strconcat (date, LOG_FILENAME_SUFFIX, NULL);
 371   filename = g_build_filename (basedir, timestamp, NULL);
 372
 373   g_free (basedir);
 374   g_free (timestamp);
 375
 376   return filename;
 377 }
 378
 379 static EmpathyLogSearchHit *
 380 log_store_empathy_search_hit_new (EmpathyLogStore *self,
 381                                   const gchar *filename)
 382 {
 383   EmpathyLogStoreEmpathyPriv *priv = GET_PRIV (self);
 384   EmpathyLogSearchHit *hit;
 385   gchar *account_name;
 386   const gchar *end;
 387   gchar **strv;
 388   guint len;
 389   GList *accounts, *l;
 390
 391   if (!g_str_has_suffix (filename, LOG_FILENAME_SUFFIX))
 392     return NULL;
 393
 394   strv = g_strsplit (filename, G_DIR_SEPARATOR_S, -1);
 395   len = g_strv_length (strv);
 396
 397   hit = g_slice_new0 (EmpathyLogSearchHit);
 398
 399   end = strstr (strv[len-1], LOG_FILENAME_SUFFIX);
 400   hit->date = g_strndup (strv[len-1], end - strv[len-1]);
 401   hit->chat_id = g_strdup (strv[len-2]);
 402   hit->is_chatroom = (strcmp (strv[len-3], LOG_DIR_CHATROOMS) == 0);
 403
 404   if (hit->is_chatroom)
 405     account_name = strv[len-4];
 406   else
 407     account_name = strv[len-3];
 408
 409   /* FIXME: This assumes the account manager is prepared, but the
 410    * synchronous API forces this. See bug #599189. */
 411   accounts = tp_account_manager_get_valid_accounts (priv->account_manager);
 412
 413   for (l = accounts; l != NULL; l = g_list_next (l))
 414     {
 415       TpAccount *account = TP_ACCOUNT (l->data);
 416       gchar *name;
 417
 418       name = log_store_account_to_dirname (account);
 419       if (!tp_strdiff (name, account_name))
 420         {
 421           g_assert (hit->account == NULL);
 422           hit->account = account;
 423           g_object_ref (account);
 424         }
 425       g_free (name);
 426     }
 427   g_list_free (accounts);
 428
 429   hit->filename = g_strdup (filename);
 430
 431   g_strfreev (strv);
 432
 433   return hit;
 434 }
 435
 436 static GList *
 437 log_store_empathy_get_messages_for_file (EmpathyLogStore *self,
 438                                          TpAccount *account,
 439                                          const gchar *filename)
 440 {
 441   GList *messages = NULL;
 442   xmlParserCtxtPtr ctxt;
 443   xmlDocPtr doc;
 444   xmlNodePtr log_node;
 445   xmlNodePtr node;
 446
 447   g_return_val_if_fail (EMPATHY_IS_LOG_STORE (self), NULL);
 448   g_return_val_if_fail (filename != NULL, NULL);
 449
 450   DEBUG ("Attempting to parse filename:'%s'...", filename);
 451
 452   if (!g_file_test (filename, G_FILE_TEST_EXISTS))
 453     {
 454       DEBUG ("Filename:'%s' does not exist", filename);
 455       return NULL;
 456     }
 457
 458   /* Create parser. */
 459   ctxt = xmlNewParserCtxt ();
 460
 461   /* Parse and validate the file. */
 462   doc = xmlCtxtReadFile (ctxt, filename, NULL, 0);
 463   if (!doc)
 464     {
 465       g_warning ("Failed to parse file:'%s'", filename);
 466       xmlFreeParserCtxt (ctxt);
 467       return NULL;
 468     }
 469
 470   /* The root node, presets. */
 471   log_node = xmlDocGetRootElement (doc);
 472   if (!log_node)
 473     {
 474       xmlFreeDoc (doc);
 475       xmlFreeParserCtxt (ctxt);
 476       return NULL;
 477     }
 478
 479   /* Now get the messages. */
 480   for (node = log_node->children; node; node = node->next)
 481     {
 482       EmpathyMessage *message;
 483       EmpathyContact *sender;
 484       gchar *time_;
 485       time_t t;
 486       gchar *sender_id;
 487       gchar *sender_name;
 488       gchar *sender_avatar_token;
 489       gchar *body;
 490       gchar *is_user_str;
 491       gboolean is_user = FALSE;
 492       gchar *msg_type_str;
 493       gchar *cm_id_str;
 494       guint cm_id;
 495       TpChannelTextMessageType msg_type = TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL;
 496
 497       if (strcmp ((const gchar *) node->name, "message") != 0)
 498         continue;
 499
 500       body = (gchar *) xmlNodeGetContent (node);
 501       time_ = (gchar *) xmlGetProp (node, (const xmlChar *) "time");
 502       sender_id = (gchar *) xmlGetProp (node, (const xmlChar *) "id");
 503       sender_name = (gchar *) xmlGetProp (node, (const xmlChar *) "name");
 504       sender_avatar_token = (gchar *) xmlGetProp (node,
 505           (const xmlChar *) "token");
 506       is_user_str = (gchar *) xmlGetProp (node, (const xmlChar *) "isuser");
 507       msg_type_str = (gchar *) xmlGetProp (node, (const xmlChar *) "type");
 508       cm_id_str = (gchar *) xmlGetProp (node, (const xmlChar *) "cm_id");
 509
 510       if (is_user_str)
 511         is_user = strcmp (is_user_str, "true") == 0;
 512
 513       if (msg_type_str)
 514         msg_type = empathy_message_type_from_str (msg_type_str);
 515
 516       if (cm_id_str)
 517         cm_id = atoi (cm_id_str);
 518
 519       t = empathy_time_parse (time_);
 520
 521       sender = empathy_contact_new_for_log (account, sender_id, sender_name,
 522                                             is_user);
 523
 524       if (!EMP_STR_EMPTY (sender_avatar_token))
 525         empathy_contact_load_avatar_cache (sender,
 526             sender_avatar_token);
 527
 528       message = empathy_message_new (body);
 529       empathy_message_set_sender (message, sender);
 530       empathy_message_set_timestamp (message, t);
 531       empathy_message_set_tptype (message, msg_type);
 532       empathy_message_set_is_backlog (message, TRUE);
 533
 534       if (cm_id_str)
 535         empathy_message_set_id (message, cm_id);
 536
 537       messages = g_list_append (messages, message);
 538
 539       g_object_unref (sender);
 540       xmlFree (time_);
 541       xmlFree (sender_id);
 542       xmlFree (sender_name);
 543       xmlFree (body);
 544       xmlFree (is_user_str);
 545       xmlFree (msg_type_str);
 546       xmlFree (cm_id_str);
 547       xmlFree (sender_avatar_token);
 548     }
 549
 550   DEBUG ("Parsed %d messages", g_list_length (messages));
 551
 552   xmlFreeDoc (doc);
 553   xmlFreeParserCtxt (ctxt);
 554
 555   return messages;
 556 }
 557
 558 static GList *
 559 log_store_empathy_get_all_files (EmpathyLogStore *self,
 560                                  const gchar *dir)
 561 {
 562   GDir *gdir;
 563   GList *files = NULL;
 564   const gchar *name;
 565   const gchar *basedir;
 566   EmpathyLogStoreEmpathyPriv *priv;
 567
 568   priv = GET_PRIV (self);
 569
 570   basedir = dir ? dir : priv->basedir;
 571
 572   gdir = g_dir_open (basedir, 0, NULL);
 573   if (!gdir)
 574     return NULL;
 575
 576   while ((name = g_dir_read_name (gdir)) != NULL)
 577     {
 578       gchar *filename;
 579
 580       filename = g_build_filename (basedir, name, NULL);
 581       if (g_str_has_suffix (filename, LOG_FILENAME_SUFFIX))
 582         {
 583           files = g_list_prepend (files, filename);
 584           continue;
 585         }
 586
 587       if (g_file_test (filename, G_FILE_TEST_IS_DIR))
 588         {
 589           /* Recursively get all log files */
 590           files = g_list_concat (files,
 591               log_store_empathy_get_all_files (self, filename));
 592         }
 593
 594       g_free (filename);
 595     }
 596
 597   g_dir_close (gdir);
 598
 599   return files;
 600 }
 601
 602 static GList *
 603 log_store_empathy_search_new (EmpathyLogStore *self,
 604                               const gchar *text)
 605 {
 606   GList *files, *l;
 607   GList *hits = NULL;
 608   gchar *text_casefold;
 609
 610   g_return_val_if_fail (EMPATHY_IS_LOG_STORE (self), NULL);
 611   g_return_val_if_fail (!EMP_STR_EMPTY (text), NULL);
 612
 613   text_casefold = g_utf8_casefold (text, -1);
 614
 615   files = log_store_empathy_get_all_files (self, NULL);
 616   DEBUG ("Found %d log files in total", g_list_length (files));
 617
 618   for (l = files; l; l = g_list_next (l))
 619     {
 620       gchar *filename;
 621       GMappedFile *file;
 622       gsize length;
 623       gchar *contents = NULL;
 624       gchar *contents_casefold = NULL;
 625
 626       filename = l->data;
 627
 628       file = g_mapped_file_new (filename, FALSE, NULL);
 629       if (file == NULL)
 630         goto drinking_island;
 631
 632       length = g_mapped_file_get_length (file);
 633       contents = g_mapped_file_get_contents (file);
 634
 635       if (length == 0 || contents == NULL)
 636         goto drinking_island;
 637
 638       contents_casefold = g_utf8_casefold (contents, length);
 639
 640       if (strstr (contents_casefold, text_casefold))
 641         {
 642           EmpathyLogSearchHit *hit;
 643
 644           hit = log_store_empathy_search_hit_new (self, filename);
 645
 646           if (hit)
 647             {
 648               hits = g_list_prepend (hits, hit);
 649               DEBUG ("Found text:'%s' in file:'%s' on date:'%s'",
 650                   text, hit->filename, hit->date);
 651             }
 652         }
 653
 654 drinking_island:
 655       if (file != NULL)
 656         g_mapped_file_unref (file);
 657
 658       g_free (contents_casefold);
 659       g_free (filename);
 660     }
 661
 662   g_list_free (files);
 663   g_free (text_casefold);
 664
 665   return hits;
 666 }
 667
 668 static GList *
 669 log_store_empathy_get_chats_for_dir (EmpathyLogStore *self,
 670                                      const gchar *dir,
 671                                      gboolean is_chatroom)
 672 {
 673   GDir *gdir;
 674   GList *hits = NULL;
 675   const gchar *name;
 676   GError *error = NULL;
 677
 678   gdir = g_dir_open (dir, 0, &error);
 679   if (!gdir)
 680     {
 681       DEBUG ("Failed to open directory: %s, error: %s", dir, error->message);
 682       g_error_free (error);
 683       return NULL;
 684     }
 685
 686   while ((name = g_dir_read_name (gdir)) != NULL)
 687     {
 688       EmpathyLogSearchHit *hit;
 689
 690       if (!is_chatroom && strcmp (name, LOG_DIR_CHATROOMS) == 0)
 691         {
 692           gchar *filename = g_build_filename (dir, name, NULL);
 693           hits = g_list_concat (hits, log_store_empathy_get_chats_for_dir (
 694                 self, filename, TRUE));
 695           g_free (filename);
 696           continue;
 697         }
 698       hit = g_slice_new0 (EmpathyLogSearchHit);
 699       hit->chat_id = g_strdup (name);
 700       hit->is_chatroom = is_chatroom;
 701
 702       hits = g_list_prepend (hits, hit);
 703     }
 704
 705   g_dir_close (gdir);
 706
 707   return hits;
 708 }
 709
 710
 711 static GList *
 712 log_store_empathy_get_messages_for_date (EmpathyLogStore *self,
 713                                          TpAccount *account,
 714                                          const gchar *chat_id,
 715                                          gboolean chatroom,
 716                                          const gchar *date)
 717 {
 718   gchar *filename;
 719   GList *messages;
 720
 721   g_return_val_if_fail (EMPATHY_IS_LOG_STORE (self), NULL);
 722   g_return_val_if_fail (chat_id != NULL, NULL);
 723   g_return_val_if_fail (account != NULL, NULL);
 724
 725   filename = log_store_empathy_get_filename_for_date (self, account,
 726       chat_id, chatroom, date);
 727   messages = log_store_empathy_get_messages_for_file (self, account,
 728     filename);
 729   g_free (filename);
 730
 731   return messages;
 732 }
 733
 734 static GList *
 735 log_store_empathy_get_chats (EmpathyLogStore *self,
 736                               TpAccount *account)
 737 {
 738   gchar *dir;
 739   GList *hits;
 740   EmpathyLogStoreEmpathyPriv *priv;
 741
 742   priv = GET_PRIV (self);
 743
 744   dir = log_store_empathy_get_dir (self, account, NULL, FALSE);
 745
 746   hits = log_store_empathy_get_chats_for_dir (self, dir, FALSE);
 747
 748   g_free (dir);
 749
 750   return hits;
 751 }
 752
 753 static const gchar *
 754 log_store_empathy_get_name (EmpathyLogStore *self)
 755 {
 756   EmpathyLogStoreEmpathyPriv *priv = GET_PRIV (self);
 757
 758   return priv->name;
 759 }
 760
 761 static GList *
 762 log_store_empathy_get_filtered_messages (EmpathyLogStore *self,
 763                                          TpAccount *account,
 764                                          const gchar *chat_id,
 765                                          gboolean chatroom,
 766                                          guint num_messages,
 767                                          EmpathyLogMessageFilter filter,
 768                                          gpointer user_data)
 769 {
 770   GList *dates, *l, *messages = NULL;
 771   guint i = 0;
 772
 773   dates = log_store_empathy_get_dates (self, account, chat_id, chatroom);
 774
 775   for (l = g_list_last (dates); l && i < num_messages; l = g_list_previous (l))
 776     {
 777       GList *new_messages, *n, *next;
 778
 779       /* FIXME: We should really restrict the message parsing to get only
 780        * the newest num_messages. */
 781       new_messages = log_store_empathy_get_messages_for_date (self, account,
 782           chat_id, chatroom, l->data);
 783
 784       n = new_messages;
 785       while (n != NULL)
 786         {
 787           next = g_list_next (n);
 788           if (!filter (n->data, user_data))
 789             {
 790               g_object_unref (n->data);
 791               new_messages = g_list_delete_link (new_messages, n);
 792             }
 793           else
 794             {
 795               i++;
 796             }
 797           n = next;
 798         }
 799       messages = g_list_concat (messages, new_messages);
 800     }
 801
 802   g_list_foreach (dates, (GFunc) g_free, NULL);
 803   g_list_free (dates);
 804
 805   return messages;
 806 }
 807
 808 static void
 809 log_store_iface_init (gpointer g_iface,
 810                       gpointer iface_data)
 811 {
 812   EmpathyLogStoreInterface *iface = (EmpathyLogStoreInterface *) g_iface;
 813
 814   iface->get_name = log_store_empathy_get_name;
 815   iface->exists = log_store_empathy_exists;
 816   iface->add_message = log_store_empathy_add_message;
 817   iface->get_dates = log_store_empathy_get_dates;
 818   iface->get_messages_for_date = log_store_empathy_get_messages_for_date;
 819   iface->get_chats = log_store_empathy_get_chats;
 820   iface->search_new = log_store_empathy_search_new;
 821   iface->ack_message = NULL;
 822   iface->get_filtered_messages = log_store_empathy_get_filtered_messages;
 823 }