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Diffstat (limited to 'src/avatars.c')
| -rw-r--r-- | src/avatars.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/src/avatars.c b/src/avatars.c new file mode 100644 index 0000000..9bb68ac --- /dev/null +++ b/src/avatars.c @@ -0,0 +1,207 @@ +/* + * avatars.h + * + * Handling of User Display Pictures (but not displaying them) + * N.B. msnp2p.c does most of the work of actually sending + * and receiving them on the network. + * + * (c) 2002-20045Thomas White <taw27@srcf.ucam.org> + * Part of TuxMessenger - GTK+-based MSN Messenger client + * + * This package 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 dated June, 1991. + * + * This package 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. + * + * You should have received a copy of the GNU General Public License + * along with this package; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + * + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <assert.h> +#include <openssl/sha.h> + +#include "sbsessions.h" +#include "debug.h" +#include "routines.h" +#include "xml.h" +#include "options.h" + +char *avatars_getlocalfilename(const char *name) { + + char *filename; + char *done; + + filename = malloc(strlen(name)+17); + strcpy(filename, "~/.tuxmessenger/"); + strcat(filename, name); + + done = routines_glob(filename); + free(filename); + + return done; + +} + + +static char *avatars_getfilename(const char *sha1d) { + + char *filename; + char *filename2; + char *done; + + filename = xml_killillegalchars(sha1d); + + filename2 = malloc(strlen(filename)+25); + strcpy(filename2, "~/.tuxmessenger/avatars/"); + strcat(filename2, filename); + free(filename); + + done = routines_glob(filename2); + free(filename2); + + return done; + +} + +/* Check if the picture for a user is already downloaded. Returns the filename if it's here. */ +char *avatars_havepicture(const char *dpobject) { + + char *picture_data_hash; + struct stat stat_buffer; + struct stat *statbuf; + char *dpobject_decoded; + char *full_filename; + + assert(dpobject != NULL); + + dpobject_decoded = routines_urldecode(dpobject); + picture_data_hash = xml_getfield(dpobject_decoded, "SHA1D"); + free(dpobject_decoded); + full_filename = avatars_getfilename(picture_data_hash); + free(picture_data_hash); + if ( full_filename == NULL ) { + return NULL; + } + + /* Check if we already have this picture or not */ + statbuf = &stat_buffer; + debug_print("AV: Looking for '%s': ", full_filename); + if ( stat(full_filename, statbuf) != -1 ) { + debug_print("found!\n"); + return full_filename; + } else { + debug_print("not found.\n"); + } + free(full_filename); + + return NULL; + +} + +/* Return filename of the image to use while downloading a picture. */ +char *avatars_default_fetching() { + + return avatars_getlocalfilename("wait_avatar.png"); + +} + +/* Return filename of default image to use when a user has no picture. */ +char *avatars_default_none() { + + return avatars_getlocalfilename("default_avatar.png"); + +} + +/* Return filename of image to use for local user. */ +char *avatars_local() { + + return avatars_getlocalfilename("avatar.png"); + +} + +char *avatars_localobject() { + + char *msnobject; + char *msnobject_coded; + char *sha1c_b64; + char *sha1d_b64; + char *sha1c; + char *sha1d; + struct stat stat_buffer; + struct stat *statbuf; + void *picture_data; + size_t size; + FILE *fh; + char *filename; + + filename = avatars_local(); + if ( filename == NULL ) { + debug_print("AV: No avatar found.\n"); + return strdup("0"); + } + + statbuf = &stat_buffer; + if ( stat(filename, statbuf) == -1 ) { + debug_print("AV: No avatar found.\n"); + return strdup("0"); + } + + size = (int)statbuf->st_size; + + fh = fopen(filename, "r"); + picture_data = malloc(size); + if ( fread(picture_data, size, 1, fh) < 0 ) { + debug_print("AV: Couldn't open avatar file.\n"); + return strdup("0"); + } + fclose(fh); + sha1d = SHA1(picture_data, size, NULL); + sha1d_b64 = routines_base64givenlength(sha1d, 20); + free(picture_data); + + msnobject = malloc(256); + sprintf(msnobject, "Creator%sSize%iType3LocationTFR6B.tmpFriendlyAAA=SHA1D%s", options_username(), size, sha1d_b64); + sha1c = SHA1(msnobject, strlen(msnobject), NULL); + sha1c_b64 = routines_base64givenlength(sha1c, 20); + + debug_print("AV: Avatar: %s - %i bytes\n", filename, size); + debug_print("AV: SHA1D: %s\n", sha1d_b64); + + sprintf(msnobject, "<msnobj Creator=\"%s\" Size=\"%i\" Type=\"3\" Location=\"TFR6B.tmp\" Friendly=\"AAA=\" SHA1D=\"%s\" SHA1C=\"%s\"/>", options_username(), size, sha1d_b64, sha1c_b64); + free(sha1d_b64); + free(sha1c_b64); + + msnobject_coded = routines_urlencode(msnobject); + free(msnobject); + free(filename); + + return msnobject_coded; + +} + +char *avatars_unwrapsha1d(const char *dpobject) { + + char *dpobject_decoded; + char *data_hash; + + dpobject_decoded = routines_urldecode(dpobject); + data_hash = xml_getfield(dpobject_decoded, "SHA1D"); + free(dpobject_decoded); + + return data_hash; + +} |