2 * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
3 * Copyright (C) 2014-2015 Ricardo Mones and the Claws Mail Team
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "libravatar_missing.h"
22 #include "libravatar_prefs.h"
24 #include "file-utils.h"
27 * Loads the hash table of md5sum → time from the given filename.
29 * @param filename Name of the hash table filename.
31 * @return A hash table with the entries not expired contained in
32 * the given filename or NULL if failed to load.
34 GHashTable *missing_load_from_file(const gchar *filename)
36 FILE *file = claws_fopen(filename, "r");
38 long long unsigned seen;
40 GHashTable *table = NULL;
41 int r = 0, a = 0, d = 0;
44 if (!is_file_exist(filename)) { /* first run, return an empty table */
45 return g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
47 g_warning("cannot open '%s' for reading", filename);
51 if (t == (time_t)-1) {
52 g_warning("cannot get time!");
56 table = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
58 while ((r = fscanf(file, "%32s %llu\n", md5sum, &seen)) != EOF) {
59 if (t - (time_t)seen <= LIBRAVATAR_MISSING_TIME) {
60 time_t *value = g_malloc0(sizeof(time_t));
61 *value = (time_t)seen;
62 g_hash_table_insert(table, g_strdup(md5sum), value);
69 if (claws_fclose(file) != 0)
70 g_warning("error closing '%s'", filename);
72 debug_print("Read %d missing avatar entries, %d obsolete entries discarded\n", a, d);
77 * Saves a hash table item.
79 * @param key Hash table key, a md5sum string.
80 * @param vakue Hash table value, a time_t.
81 * @param data User data, a pointer to the open FILE being written.
83 static void missing_save_item(gpointer key, gpointer value, gpointer data)
85 FILE *file = (FILE *)data;
86 gchar *line = g_strdup_printf("%s %llu\n", (gchar *)key, *((long long unsigned *)value));
87 if (claws_fputs(line, file) < 0)
88 g_warning("error saving missing item");
93 * Saves a hash table of md5sum → time to a given file name.
95 * @param table The table to save.
96 * @param filename The name of the file where table data will be saved.
98 * @return 0 on success, -1 if there was some problem saving.
100 gint missing_save_to_file(GHashTable *table, const gchar *filename)
102 FILE *file = claws_fopen(filename, "w");
105 g_warning("cannot open '%s' for writing", filename);
109 g_hash_table_foreach(table, missing_save_item, (gpointer)file);
110 debug_print("Saved %u missing avatar entries\n", g_hash_table_size(table));
112 if (claws_safe_fclose(file) != 0) {
113 g_warning("error closing '%s'", filename);
121 * Adds a md5sum to a md5sum → time hash table.
122 * If the md5sum is already in the table its time is updated.
124 * @param table The table to use.
125 * @param md5 The md5sum to add or update.
127 void missing_add_md5(GHashTable *table, const gchar *md5)
129 time_t t = time(NULL);
131 if (t == (time_t)-1) {
132 g_warning("cannot get time!");
136 time_t *seen = g_hash_table_lookup(table, md5);
138 seen = g_malloc0(sizeof(time_t));
140 g_hash_table_insert(table, g_strdup(md5), seen);
141 debug_print("New md5 %s added with time %llu\n", md5, (long long unsigned)t);
143 *seen = t; /* just update */
144 debug_print("Updated md5 %s with time %llu\n", md5, (long long unsigned)t);
149 * Check if a md5sum is in hash table and not expired.
151 * @param table The table to check against.
152 * @param md5 The md5sum to check.
154 * @return TRUE if the md5sum is in the table and is not expired,
157 gboolean is_missing_md5(GHashTable *table, const gchar *md5)
160 time_t *seen = (time_t *)g_hash_table_lookup(table, md5);
166 if (t != (time_t)-1) {
167 if (t - *seen <= LIBRAVATAR_MISSING_TIME) {
168 debug_print("Found missing md5 %s\n", md5);