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added lodepng lib and function to genearte image from hashkey

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root 2014-12-19 13:57:20 +01:00
parent 62909f9c83
commit 2937140a07
4 changed files with 7871 additions and 2 deletions
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2
Makefile.in
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@ -16,7 +16,7 @@ LIB=libs
DIR_LIST=${DEP} ${AUTO} ${EXE} ${OBJ} ${LIB} ${DEP}/auto ${OBJ}/auto
PLUGIN_OBJECTS=${OBJ}/tgp-net.o ${OBJ}/tgp-timers.o ${OBJ}/msglog.o ${OBJ}/telegram-base.o ${OBJ}/telegram-purple.o ${OBJ}/tgp-2prpl.o
PLUGIN_OBJECTS=${OBJ}/tgp-net.o ${OBJ}/tgp-timers.o ${OBJ}/msglog.o ${OBJ}/telegram-base.o ${OBJ}/telegram-purple.o ${OBJ}/tgp-2prpl.o ${OBJ}/lodepng.o
ALL_OBJS=${PLUGIN_OBJECTS}
.SUFFIXES:

6104
lodepng.c Executable file
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File diff suppressed because it is too large Load diff

1702
lodepng.h Executable file
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65
telegram-purple.c
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@ -57,12 +57,13 @@
#include "telegram-base.h"
#include "telegram-purple.h"
#include "msglog.h"
#include "lodepng.h"
PurplePlugin *_telegram_protocol = NULL;
PurpleGroup *tggroup;
const char *config_dir = ".telegram-purple";
const char *pk_path = "/etc/telegram-purple/server.pub";
int generate_ident_icon(unsigned char* sha1_key);
void tgprpl_login_on_connected();
void on_user_get_info (struct tgl_state *TLS, void *show_info, int success, struct tgl_user *U);
@ -462,6 +463,16 @@ static void on_userpic_loaded (struct tgl_state *TLS, void *extra, int success,
PurpleNotifyUserInfo *info = create_user_notify_info(U);
char *profile_image = profile_image = format_img_full(imgStoreId);
purple_notify_user_info_add_pair (info, "Profile image", profile_image);
//TODO: get the sha1key from the secret chat
unsigned char sha1_key[20] = {129, 236, 235, 161, 62, 139, 244, 162, 120, 99, 99, 26, 171, 224, 25, 125};
int sha1key_store_id = generate_ident_icon(sha1_key);
if(sha1key_store_id != -1)
{
char *ident_icon = g_strdup_printf("<br><img id=\"%u\">", sha1key_store_id);
purple_notify_user_info_add_pair(info, "Identification icon", ident_icon);
g_free(ident_icon);
}
purple_notify_userinfo (conn->gc, who, info, NULL, NULL);
g_free (profile_image);
}
@ -517,6 +528,58 @@ void on_chat_get_info (struct tgl_state *TLS, void *extra, int success, struct t
g_free (name);
}
// This function generates a png image to visulize the sha1 key from an encrypted chat.
int generate_ident_icon(unsigned char* sha1_key)
{
int colors[4] = {
0xffffff,
0xd5e6f3,
0x2d5775,
0x2f99c9
};
unsigned img_size = 160;
unsigned char* image = (unsigned char*)malloc(img_size * img_size * 4);
unsigned x, y, i, j, idx = 0;
int bitpointer = 0;
for (y = 0; y < 8; y++)
{
unsigned offset_y = y * img_size * 4 * (img_size / 8);
for (x = 0; x < 8; x++)
{
int offset = bitpointer / 8;
int shiftOffset = bitpointer % 8;
int val = sha1_key[offset + 3] << 24 | sha1_key[offset + 2] << 16 | sha1_key[offset + 1] << 8 | sha1_key[offset];
idx = abs((val >> shiftOffset) & 3) % 4;
bitpointer += 2;
unsigned offset_x = x * 4 * (img_size / 8);
for (i = 0; i < img_size / 8; i++)
{
unsigned off_y = offset_y + i * img_size * 4;
for (j = 0; j < img_size / 8; j++)
{
unsigned off_x = offset_x + j * 4;
image[off_y + off_x + 0] = (colors[idx] >> 16) & 0xFF;
image[off_y + off_x + 1] = (colors[idx] >> 8) & 0xFF;
image[off_y + off_x + 2] = colors[idx] & 0xFF;
image[off_y + off_x + 3] = 0xFF;
}
}
}
}
unsigned char* png;
size_t pngsize;
unsigned error = lodepng_encode32(&png, &pngsize, image, img_size, img_size);
int imgStoreId = -1;
if(!error)
{
imgStoreId = purple_imgstore_add_with_id(g_memdup(png, pngsize), pngsize, NULL);
}
g_free(image);
g_free(png);
return imgStoreId;
}
void on_ready (struct tgl_state *TLS) {
debug ("on_ready().\n");
telegram_conn *conn = TLS->ev_base;