--- a/libpurple/protocols/silc10/util.c Tue Dec 06 08:23:45 2011 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,776 +0,0 @@ -/* - - silcpurple_util.c - - Author: Pekka Riikonen <priikone@silcnet.org> - - Copyright (C) 2004 - 2005 Pekka Riikonen - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; version 2 of the License. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - -*/ - -#include "silcincludes.h" -#include "silcclient.h" -#include "silcpurple.h" -#include "imgstore.h" - -/**************************** Utility Routines *******************************/ - -static char str[256], str2[256]; - -const char *silcpurple_silcdir(void) -{ - const char *hd = purple_home_dir(); - memset(str, 0, sizeof(str)); - g_snprintf(str, sizeof(str) - 1, "%s" G_DIR_SEPARATOR_S ".silc", hd ? hd : "/tmp"); - return (const char *)str; -} - -const char *silcpurple_session_file(const char *account) -{ - memset(str2, 0, sizeof(str2)); - g_snprintf(str2, sizeof(str2) - 1, "%s" G_DIR_SEPARATOR_S "%s_session", - silcpurple_silcdir(), account); - return (const char *)str2; -} - -gboolean silcpurple_ip_is_private(const char *ip) -{ - if (silc_net_is_ip4(ip)) { - if (!strncmp(ip, "10.", 3)) { - return TRUE; - } else if (!strncmp(ip, "172.", 4) && strlen(ip) > 6) { - char tmp[3]; - int s; - memset(tmp, 0, sizeof(tmp)); - strncpy(tmp, ip + 4, 2); - s = atoi(tmp); - if (s >= 16 && s <= 31) - return TRUE; - } else if (!strncmp(ip, "192.168.", 8)) { - return TRUE; - } - } - - return FALSE; -} - -/* This checks stats for various SILC files and directories. First it - checks if ~/.silc directory exist and is owned by the correct user. If - it doesn't exist, it will create the directory. After that it checks if - user's Public and Private key files exists and creates them if needed. */ - -gboolean silcpurple_check_silc_dir(PurpleConnection *gc) -{ - char filename[256], file_public_key[256], file_private_key[256]; - char servfilename[256], clientfilename[256], friendsfilename[256]; - char pkd[256], prd[256]; - struct stat st; - struct passwd *pw; - int fd; - - pw = getpwuid(getuid()); - if (!pw) { - purple_debug_error("silc", "silc: %s\n", g_strerror(errno)); - return FALSE; - } - - g_snprintf(filename, sizeof(filename) - 1, "%s", silcpurple_silcdir()); - g_snprintf(servfilename, sizeof(servfilename) - 1, "%s" G_DIR_SEPARATOR_S "serverkeys", - silcpurple_silcdir()); - g_snprintf(clientfilename, sizeof(clientfilename) - 1, "%s" G_DIR_SEPARATOR_S "clientkeys", - silcpurple_silcdir()); - g_snprintf(friendsfilename, sizeof(friendsfilename) - 1, "%s" G_DIR_SEPARATOR_S "friends", - silcpurple_silcdir()); - - /* - * Check ~/.silc directory - */ - if ((g_stat(filename, &st)) == -1) { - /* If dir doesn't exist */ - if (errno == ENOENT) { - if (pw->pw_uid == geteuid()) { - if ((g_mkdir(filename, 0755)) == -1) { - purple_debug_error("silc", "Couldn't create '%s' directory\n", filename); - return FALSE; - } - } else { - purple_debug_error("silc", "Couldn't create '%s' directory due to a wrong uid!\n", - filename); - return FALSE; - } - } else { - purple_debug_error("silc", "Couldn't stat '%s' directory, error: %s\n", filename, g_strerror(errno)); - return FALSE; - } - } else { -#ifndef _WIN32 - /* Check the owner of the dir */ - if (st.st_uid != 0 && st.st_uid != pw->pw_uid) { - purple_debug_error("silc", "You don't seem to own '%s' directory\n", - filename); - return FALSE; - } -#endif - } - - /* - * Check ~./silc/serverkeys directory - */ - if ((g_stat(servfilename, &st)) == -1) { - /* If dir doesn't exist */ - if (errno == ENOENT) { - if (pw->pw_uid == geteuid()) { - if ((g_mkdir(servfilename, 0755)) == -1) { - purple_debug_error("silc", "Couldn't create '%s' directory\n", servfilename); - return FALSE; - } - } else { - purple_debug_error("silc", "Couldn't create '%s' directory due to a wrong uid!\n", - servfilename); - return FALSE; - } - } else { - purple_debug_error("silc", "Couldn't stat '%s' directory, error: %s\n", - servfilename, g_strerror(errno)); - return FALSE; - } - } - - /* - * Check ~./silc/clientkeys directory - */ - if ((g_stat(clientfilename, &st)) == -1) { - /* If dir doesn't exist */ - if (errno == ENOENT) { - if (pw->pw_uid == geteuid()) { - if ((g_mkdir(clientfilename, 0755)) == -1) { - purple_debug_error("silc", "Couldn't create '%s' directory\n", clientfilename); - return FALSE; - } - } else { - purple_debug_error("silc", "Couldn't create '%s' directory due to a wrong uid!\n", - clientfilename); - return FALSE; - } - } else { - purple_debug_error("silc", "Couldn't stat '%s' directory, error: %s\n", - clientfilename, g_strerror(errno)); - return FALSE; - } - } - - /* - * Check ~./silc/friends directory - */ - if ((g_stat(friendsfilename, &st)) == -1) { - /* If dir doesn't exist */ - if (errno == ENOENT) { - if (pw->pw_uid == geteuid()) { - if ((g_mkdir(friendsfilename, 0755)) == -1) { - purple_debug_error("silc", "Couldn't create '%s' directory\n", friendsfilename); - return FALSE; - } - } else { - purple_debug_error("silc", "Couldn't create '%s' directory due to a wrong uid!\n", - friendsfilename); - return FALSE; - } - } else { - purple_debug_error("silc", "Couldn't stat '%s' directory, error: %s\n", - friendsfilename, g_strerror(errno)); - return FALSE; - } - } - - /* - * Check Public and Private keys - */ - g_snprintf(pkd, sizeof(pkd), "%s" G_DIR_SEPARATOR_S "public_key.pub", silcpurple_silcdir()); - g_snprintf(prd, sizeof(prd), "%s" G_DIR_SEPARATOR_S "private_key.prv", silcpurple_silcdir()); - g_snprintf(file_public_key, sizeof(file_public_key) - 1, "%s", - purple_account_get_string(gc->account, "public-key", pkd)); - g_snprintf(file_private_key, sizeof(file_public_key) - 1, "%s", - purple_account_get_string(gc->account, "private-key", prd)); - - if ((g_stat(file_public_key, &st)) == -1) { - /* If file doesn't exist */ - if (errno == ENOENT) { - purple_connection_update_progress(gc, _("Creating SILC key pair..."), 1, 5); - if (!silc_create_key_pair(SILCPURPLE_DEF_PKCS, - SILCPURPLE_DEF_PKCS_LEN, - file_public_key, file_private_key, NULL, - (gc->password == NULL) ? "" : gc->password, - NULL, NULL, NULL, FALSE)) { - purple_debug_error("silc", "Couldn't create key pair\n"); - return FALSE; - } - - if ((g_stat(file_public_key, &st)) == -1) { - purple_debug_error("silc", "Couldn't stat '%s' public key, error: %s\n", - file_public_key, g_strerror(errno)); - return FALSE; - } - } else { - purple_debug_error("silc", "Couldn't stat '%s' public key, error: %s\n", - file_public_key, g_strerror(errno)); - return FALSE; - } - } - -#ifndef _WIN32 - /* Check the owner of the public key */ - if (st.st_uid != 0 && st.st_uid != pw->pw_uid) { - purple_debug_error("silc", "You don't seem to own your public key!?\n"); - return FALSE; - } -#endif - - if ((fd = g_open(file_private_key, O_RDONLY, 0)) != -1) { - if ((fstat(fd, &st)) == -1) { - purple_debug_error("silc", "Couldn't stat '%s' private key, error: %s\n", - file_private_key, g_strerror(errno)); - close(fd); - return FALSE; - } - } else if ((g_stat(file_private_key, &st)) == -1) { - /* If file doesn't exist */ - if (errno == ENOENT) { - purple_connection_update_progress(gc, _("Creating SILC key pair..."), 1, 5); - if (!silc_create_key_pair(SILCPURPLE_DEF_PKCS, - SILCPURPLE_DEF_PKCS_LEN, - file_public_key, file_private_key, NULL, - (gc->password == NULL) ? "" : gc->password, - NULL, NULL, NULL, FALSE)) { - purple_debug_error("silc", "Couldn't create key pair\n"); - return FALSE; - } - - if ((fd = g_open(file_private_key, O_RDONLY, 0)) != -1) { - if ((fstat(fd, &st)) == -1) { - purple_debug_error("silc", "Couldn't stat '%s' private key, error: %s\n", - file_private_key, g_strerror(errno)); - close(fd); - return FALSE; - } - } - /* This shouldn't really happen because silc_create_key_pair() - * will set the permissions */ - else if ((g_stat(file_private_key, &st)) == -1) { - purple_debug_error("silc", "Couldn't stat '%s' private key, error: %s\n", - file_private_key, g_strerror(errno)); - return FALSE; - } - } else { - purple_debug_error("silc", "Couldn't stat '%s' private key, error: %s\n", - file_private_key, g_strerror(errno)); - return FALSE; - } - } - -#ifndef _WIN32 - /* Check the owner of the private key */ - if (st.st_uid != 0 && st.st_uid != pw->pw_uid) { - purple_debug_error("silc", "You don't seem to own your private key!?\n"); - if (fd != -1) - close(fd); - return FALSE; - } - - /* Check the permissions for the private key */ - if ((st.st_mode & 0777) != 0600) { - purple_debug_warning("silc", "Wrong permissions in your private key file `%s'!\n" - "Trying to change them ...\n", file_private_key); - if ((fd == -1) || (fchmod(fd, S_IRUSR | S_IWUSR)) == -1) { - purple_debug_error("silc", - "Failed to change permissions for private key file!\n" - "Permissions for your private key file must be 0600.\n"); - if (fd != -1) - close(fd); - return FALSE; - } - purple_debug_warning("silc", "Done.\n\n"); - } -#endif - - if (fd != -1) - close(fd); - - return TRUE; -} - -#ifdef _WIN32 -struct passwd *getpwuid(uid_t uid) { - struct passwd *pwd = calloc(1, sizeof(struct passwd)); - return pwd; -} - -uid_t getuid() { - return 0; -} - -uid_t geteuid() { - return 0; -} -#endif - -void silcpurple_show_public_key(SilcPurple sg, - const char *name, SilcPublicKey public_key, - GCallback callback, void *context) -{ - SilcPublicKeyIdentifier ident; - SilcPKCS pkcs; - char *fingerprint, *babbleprint; - unsigned char *pk; - SilcUInt32 pk_len, key_len = 0; - GString *s; - char *buf; - - ident = silc_pkcs_decode_identifier(public_key->identifier); - if (!ident) - return; - - pk = silc_pkcs_public_key_encode(public_key, &pk_len); - fingerprint = silc_hash_fingerprint(NULL, pk, pk_len); - babbleprint = silc_hash_babbleprint(NULL, pk, pk_len); - - if (silc_pkcs_alloc((unsigned char *)public_key->name, &pkcs)) { - key_len = silc_pkcs_public_key_set(pkcs, public_key); - silc_pkcs_free(pkcs); - } - - s = g_string_new(""); - if (ident->realname) - /* Hint for translators: Please check the tabulator width here and in - the next strings (short strings: 2 tabs, longer strings 1 tab, - sum: 3 tabs or 24 characters) */ - g_string_append_printf(s, _("Real Name: \t%s\n"), ident->realname); - if (ident->username) - g_string_append_printf(s, _("User Name: \t%s\n"), ident->username); - if (ident->email) - g_string_append_printf(s, _("Email: \t\t%s\n"), ident->email); - if (ident->host) - g_string_append_printf(s, _("Host Name: \t%s\n"), ident->host); - if (ident->org) - g_string_append_printf(s, _("Organization: \t%s\n"), ident->org); - if (ident->country) - g_string_append_printf(s, _("Country: \t%s\n"), ident->country); - g_string_append_printf(s, _("Algorithm: \t%s\n"), public_key->name); - g_string_append_printf(s, _("Key Length: \t%d bits\n"), (int)key_len); - g_string_append_printf(s, "\n"); - g_string_append_printf(s, _("Public Key Fingerprint:\n%s\n\n"), fingerprint); - g_string_append_printf(s, _("Public Key Babbleprint:\n%s"), babbleprint); - - buf = g_string_free(s, FALSE); - - purple_request_action(sg->gc, _("Public Key Information"), - _("Public Key Information"), - buf, 0, purple_connection_get_account(sg->gc), - NULL, NULL, context, 1, _("Close"), callback); - - g_free(buf); - silc_free(fingerprint); - silc_free(babbleprint); - silc_free(pk); - silc_pkcs_free_identifier(ident); -} - -SilcAttributePayload -silcpurple_get_attr(SilcDList attrs, SilcAttribute attribute) -{ - SilcAttributePayload attr = NULL; - - if (!attrs) - return NULL; - - silc_dlist_start(attrs); - while ((attr = silc_dlist_get(attrs)) != SILC_LIST_END) - if (attribute == silc_attribute_get_attribute(attr)) - break; - - return attr; -} - -void silcpurple_get_umode_string(SilcUInt32 mode, char *buf, - SilcUInt32 buf_size) -{ - memset(buf, 0, buf_size); - if ((mode & SILC_UMODE_SERVER_OPERATOR) || - (mode & SILC_UMODE_ROUTER_OPERATOR)) { - strcat(buf, (mode & SILC_UMODE_SERVER_OPERATOR) ? - "[server operator] " : - (mode & SILC_UMODE_ROUTER_OPERATOR) ? - "[SILC operator] " : "[unknown mode] "); - } - if (mode & SILC_UMODE_GONE) - strcat(buf, "[away] "); - if (mode & SILC_UMODE_INDISPOSED) - strcat(buf, "[indisposed] "); - if (mode & SILC_UMODE_BUSY) - strcat(buf, "[busy] "); - if (mode & SILC_UMODE_PAGE) - strcat(buf, "[wake me up] "); - if (mode & SILC_UMODE_HYPER) - strcat(buf, "[hyperactive] "); - if (mode & SILC_UMODE_ROBOT) - strcat(buf, "[robot] "); - if (mode & SILC_UMODE_ANONYMOUS) - strcat(buf, "[anonymous] "); - if (mode & SILC_UMODE_BLOCK_PRIVMSG) - strcat(buf, "[blocks private messages] "); - if (mode & SILC_UMODE_DETACHED) - strcat(buf, "[detached] "); - if (mode & SILC_UMODE_REJECT_WATCHING) - strcat(buf, "[rejects watching] "); - if (mode & SILC_UMODE_BLOCK_INVITE) - strcat(buf, "[blocks invites] "); - g_strchomp(buf); -} - -void silcpurple_get_chmode_string(SilcUInt32 mode, char *buf, - SilcUInt32 buf_size) -{ - memset(buf, 0, buf_size); - if (mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) - strcat(buf, "[permanent] "); - if (mode & SILC_CHANNEL_MODE_PRIVATE) - strcat(buf, "[private] "); - if (mode & SILC_CHANNEL_MODE_SECRET) - strcat(buf, "[secret] "); - if (mode & SILC_CHANNEL_MODE_PRIVKEY) - strcat(buf, "[private key] "); - if (mode & SILC_CHANNEL_MODE_INVITE) - strcat(buf, "[invite only] "); - if (mode & SILC_CHANNEL_MODE_TOPIC) - strcat(buf, "[topic restricted] "); - if (mode & SILC_CHANNEL_MODE_ULIMIT) - strcat(buf, "[user count limit] "); - if (mode & SILC_CHANNEL_MODE_PASSPHRASE) - strcat(buf, "[passphrase auth] "); - if (mode & SILC_CHANNEL_MODE_CHANNEL_AUTH) - strcat(buf, "[public key auth] "); - if (mode & SILC_CHANNEL_MODE_SILENCE_USERS) - strcat(buf, "[users silenced] "); - if (mode & SILC_CHANNEL_MODE_SILENCE_OPERS) - strcat(buf, "[operators silenced] "); - g_strchomp(buf); -} - -void silcpurple_get_chumode_string(SilcUInt32 mode, char *buf, - SilcUInt32 buf_size) -{ - memset(buf, 0, buf_size); - if (mode & SILC_CHANNEL_UMODE_CHANFO) - strcat(buf, "[founder] "); - if (mode & SILC_CHANNEL_UMODE_CHANOP) - strcat(buf, "[operator] "); - if (mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES) - strcat(buf, "[blocks messages] "); - if (mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_USERS) - strcat(buf, "[blocks user messages] "); - if (mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_ROBOTS) - strcat(buf, "[blocks robot messages] "); - if (mode & SILC_CHANNEL_UMODE_QUIET) - strcat(buf, "[quieted] "); - g_strchomp(buf); -} - -void -silcpurple_parse_attrs(SilcDList attrs, char **moodstr, char **statusstr, - char **contactstr, char **langstr, char **devicestr, - char **tzstr, char **geostr) -{ - SilcAttributePayload attr; - SilcAttributeMood mood = 0; - SilcAttributeContact contact; - SilcAttributeObjDevice device; - SilcAttributeObjGeo geo; - - char tmp[1024]; - GString *s; - - *moodstr = NULL; - *statusstr = NULL; - *contactstr = NULL; - *langstr = NULL; - *devicestr = NULL; - *tzstr = NULL; - *geostr = NULL; - - if (!attrs) - return; - - s = g_string_new(""); - attr = silcpurple_get_attr(attrs, SILC_ATTRIBUTE_STATUS_MOOD); - if (attr && silc_attribute_get_object(attr, &mood, sizeof(mood))) { - if (mood & SILC_ATTRIBUTE_MOOD_HAPPY) - g_string_append_printf(s, "[%s] ", _("Happy")); - if (mood & SILC_ATTRIBUTE_MOOD_SAD) - g_string_append_printf(s, "[%s] ", _("Sad")); - if (mood & SILC_ATTRIBUTE_MOOD_ANGRY) - g_string_append_printf(s, "[%s] ", _("Angry")); - if (mood & SILC_ATTRIBUTE_MOOD_JEALOUS) - g_string_append_printf(s, "[%s] ", _("Jealous")); - if (mood & SILC_ATTRIBUTE_MOOD_ASHAMED) - g_string_append_printf(s, "[%s] ", _("Ashamed")); - if (mood & SILC_ATTRIBUTE_MOOD_INVINCIBLE) - g_string_append_printf(s, "[%s] ", _("Invincible")); - if (mood & SILC_ATTRIBUTE_MOOD_INLOVE) - g_string_append_printf(s, "[%s] ", _("In Love")); - if (mood & SILC_ATTRIBUTE_MOOD_SLEEPY) - g_string_append_printf(s, "[%s] ", _("Sleepy")); - if (mood & SILC_ATTRIBUTE_MOOD_BORED) - g_string_append_printf(s, "[%s] ", _("Bored")); - if (mood & SILC_ATTRIBUTE_MOOD_EXCITED) - g_string_append_printf(s, "[%s] ", _("Excited")); - if (mood & SILC_ATTRIBUTE_MOOD_ANXIOUS) - g_string_append_printf(s, "[%s] ", _("Anxious")); - } - if (strlen(s->str)) { - *moodstr = s->str; - g_string_free(s, FALSE); - g_strchomp(*moodstr); - } else - g_string_free(s, TRUE); - - attr = silcpurple_get_attr(attrs, SILC_ATTRIBUTE_STATUS_FREETEXT); - memset(tmp, 0, sizeof(tmp)); - if (attr && silc_attribute_get_object(attr, tmp, sizeof(tmp))) - *statusstr = g_strdup(tmp); - - s = g_string_new(""); - attr = silcpurple_get_attr(attrs, SILC_ATTRIBUTE_PREFERRED_CONTACT); - if (attr && silc_attribute_get_object(attr, &contact, sizeof(contact))) { - if (contact & SILC_ATTRIBUTE_CONTACT_CHAT) - g_string_append_printf(s, "[%s] ", _("Chat")); - if (contact & SILC_ATTRIBUTE_CONTACT_EMAIL) - g_string_append_printf(s, "[%s] ", _("Email")); - if (contact & SILC_ATTRIBUTE_CONTACT_CALL) - g_string_append_printf(s, "[%s] ", _("Phone")); - if (contact & SILC_ATTRIBUTE_CONTACT_PAGE) - g_string_append_printf(s, "[%s] ", _("Paging")); - if (contact & SILC_ATTRIBUTE_CONTACT_SMS) - g_string_append_printf(s, "[%s] ", _("SMS")); - if (contact & SILC_ATTRIBUTE_CONTACT_MMS) - g_string_append_printf(s, "[%s] ", _("MMS")); - if (contact & SILC_ATTRIBUTE_CONTACT_VIDEO) - g_string_append_printf(s, "[%s] ", _("Video Conferencing")); - } - if (strlen(s->str)) { - *contactstr = s->str; - g_string_free(s, FALSE); - g_strchomp(*contactstr); - } else - g_string_free(s, TRUE); - - attr = silcpurple_get_attr(attrs, SILC_ATTRIBUTE_PREFERRED_LANGUAGE); - memset(tmp, 0, sizeof(tmp)); - if (attr && silc_attribute_get_object(attr, tmp, sizeof(tmp))) - *langstr = g_strdup(tmp); - - s = g_string_new(""); - attr = silcpurple_get_attr(attrs, SILC_ATTRIBUTE_DEVICE_INFO); - memset(&device, 0, sizeof(device)); - if (attr && silc_attribute_get_object(attr, &device, sizeof(device))) { - if (device.type == SILC_ATTRIBUTE_DEVICE_COMPUTER) - g_string_append_printf(s, "%s: ", _("Computer")); - if (device.type == SILC_ATTRIBUTE_DEVICE_MOBILE_PHONE) - g_string_append_printf(s, "%s: ", _("Mobile Phone")); - if (device.type == SILC_ATTRIBUTE_DEVICE_PDA) - g_string_append_printf(s, "%s: ", _("PDA")); - if (device.type == SILC_ATTRIBUTE_DEVICE_TERMINAL) - g_string_append_printf(s, "%s: ", _("Terminal")); - g_string_append_printf(s, "%s %s %s %s", - device.manufacturer ? device.manufacturer : "", - device.version ? device.version : "", - device.model ? device.model : "", - device.language ? device.language : ""); - } - if (strlen(s->str)) { - *devicestr = s->str; - g_string_free(s, FALSE); - } else - g_string_free(s, TRUE); - - attr = silcpurple_get_attr(attrs, SILC_ATTRIBUTE_TIMEZONE); - memset(tmp, 0, sizeof(tmp)); - if (attr && silc_attribute_get_object(attr, tmp, sizeof(tmp))) - *tzstr = g_strdup(tmp); - - attr = silcpurple_get_attr(attrs, SILC_ATTRIBUTE_GEOLOCATION); - memset(&geo, 0, sizeof(geo)); - if (attr && silc_attribute_get_object(attr, &geo, sizeof(geo))) - *geostr = g_strdup_printf("%s %s %s (%s)", - geo.longitude ? geo.longitude : "", - geo.latitude ? geo.latitude : "", - geo.altitude ? geo.altitude : "", - geo.accuracy ? geo.accuracy : ""); -} - -#ifdef HAVE_SILCMIME_H -/* Returns MIME type of filetype */ - -char *silcpurple_file2mime(const char *filename) -{ - const char *ct; - - ct = strrchr(filename, '.'); - if (!ct) - return NULL; - else if (!g_ascii_strcasecmp(".png", ct)) - return strdup("image/png"); - else if (!g_ascii_strcasecmp(".jpg", ct)) - return strdup("image/jpeg"); - else if (!g_ascii_strcasecmp(".jpeg", ct)) - return strdup("image/jpeg"); - else if (!g_ascii_strcasecmp(".gif", ct)) - return strdup("image/gif"); - else if (!g_ascii_strcasecmp(".tiff", ct)) - return strdup("image/tiff"); - - return NULL; -} - -/* Checks if message has images, and assembles MIME message if it has. - If only one image is present, creates simple MIME image message. If - there are multiple images and/or text with images multipart MIME - message is created. */ - -SilcDList silcpurple_image_message(const char *msg, SilcUInt32 *mflags) -{ - SilcMime mime = NULL, p; - SilcDList list, parts = NULL; - const char *start, *end, *last; - GData *attribs; - char *type; - gboolean images = FALSE; - - last = msg; - while (last && *last && purple_markup_find_tag("img", last, &start, - &end, &attribs)) { - PurpleStoredImage *image = NULL; - const char *id; - - /* Check if there is text before image */ - if (start - last) { - char *text, *tmp; - p = silc_mime_alloc(); - - /* Add content type */ - silc_mime_add_field(p, "Content-Type", - "text/plain; charset=utf-8"); - - tmp = g_strndup(last, start - last); - text = purple_unescape_html(tmp); - g_free(tmp); - /* Add text */ - silc_mime_add_data(p, (unsigned char *)text, strlen(text)); - g_free(text); - - if (!parts) - parts = silc_dlist_init(); - silc_dlist_add(parts, p); - } - - id = g_datalist_get_data(&attribs, "id"); - if (id && (image = purple_imgstore_find_by_id(atoi(id)))) { - unsigned long imglen = purple_imgstore_get_size(image); - gconstpointer img = purple_imgstore_get_data(image); - - p = silc_mime_alloc(); - - /* Add content type */ - type = silcpurple_file2mime(purple_imgstore_get_filename(image)); - if (!type) { - g_datalist_clear(&attribs); - last = end + 1; - continue; - } - silc_mime_add_field(p, "Content-Type", type); - silc_free(type); - - /* Add content transfer encoding */ - silc_mime_add_field(p, "Content-Transfer-Encoding", "binary"); - - /* Add image data */ - silc_mime_add_data(p, img, imglen); - - if (!parts) - parts = silc_dlist_init(); - silc_dlist_add(parts, p); - images = TRUE; - } - - g_datalist_clear(&attribs); - - /* Continue after tag */ - last = end + 1; - } - - /* Check for text after the image(s) */ - if (images && last && *last) { - char *tmp = purple_unescape_html(last); - p = silc_mime_alloc(); - - /* Add content type */ - silc_mime_add_field(p, "Content-Type", - "text/plain; charset=utf-8"); - - /* Add text */ - silc_mime_add_data(p, (unsigned char *)tmp, strlen(tmp)); - g_free(tmp); - - if (!parts) - parts = silc_dlist_init(); - silc_dlist_add(parts, p); - } - - /* If there weren't any images, don't return anything. */ - if (!images) { - if (parts) - silc_dlist_uninit(parts); - return NULL; - } - - if (silc_dlist_count(parts) > 1) { - /* Multipart MIME message */ - char b[32]; - mime = silc_mime_alloc(); - silc_mime_add_field(mime, "MIME-Version", "1.0"); - g_snprintf(b, sizeof(b), "b%4X%4X", - (unsigned int)time(NULL), - silc_dlist_count(parts)); - silc_mime_set_multipart(mime, "mixed", b); - silc_dlist_start(parts); - while ((p = silc_dlist_get(parts)) != SILC_LIST_END) - silc_mime_add_multipart(mime, p); - } else { - /* Simple MIME message */ - silc_dlist_start(parts); - mime = silc_dlist_get(parts); - silc_mime_add_field(mime, "MIME-Version", "1.0"); - } - - *mflags &= ~SILC_MESSAGE_FLAG_UTF8; - *mflags |= SILC_MESSAGE_FLAG_DATA; - - /* Encode message. Fragment if it is too large */ - list = silc_mime_encode_partial(mime, 0xfc00); - - silc_dlist_uninit(parts); - - /* Added multiparts gets freed here */ - silc_mime_free(mime); - - return list; -} - -#endif /* HAVE_SILCMIME_H */