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mlb.c
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mlb.c
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>
#include <time.h>
#include <fcntl.h>
#include <curl/curl.h>
#include <stdint.h>
#include <sys/stat.h>
#include <pthread.h>
#include <inttypes.h>
#include <openssl/aes.h>
#include <openssl/evp.h>
#include <getopt.h>
#include <unistd.h>
#include <libconfig.h>
#include "mlb.h"
#define HLS_CFG_PROXY "proxy_addr"
#define HLS_CFG_PLAYER_CMD "player_cmd"
#define HLS_CFG_LW_CMD "lw_time"
#define HLS_PLAYLIST_REFRESH_TIME 12
#define HLS_START_MARKER "#EXTM3U"
#define HLS_KEY_MARKER "#EXT-X-KEY:"
#define HLS_SEGMENT_LEN_MARKER "#EXTINF:"
#define HLS_DATETIME_MARKER "#EXT-X-PROGRAM-DATE-TIME:"
#define HLS_END_MARKER "#EXT-X-ENDLIST"
#define HLS_BANDWIDTH_MARKER "BANDWIDTH="
#define HLS_AES128_DESC "METHOD=AES-128"
#define HLS_HEADER_POS 0
#define HLS_DATETIME_POS 3
#define HLS_FIRSTKEY_POS 5
#define MLB_HLS_DEFAULT_BUFSIZE (562500 * 10)
//#define MLB_HLS_DEFAULT_BITRATE 3000000
#define MLB_HLS_TIME_FORMAT "%FT%T" // Ignore timezone info
#define MLB_HLS_DEFAULT_CFGFILE "mlb.cfg"
//#define MPLAYER_STREAM_CMD "/usr/bin/mplayer2 -really-quiet -fs -vc ffh264vdpau, -vo vdpau:fps=60:deint=0:denoise=1:hqscaling=1,xv, -livepause 4 -delay 0 -demuxer lavf -mc 2"
#define MPLAYER_STREAM_CMD " "
#define DATA_XFER_TIMEOUT 18
#define URL_CONNECT_TIMEOUT 9
int tmp_sw = 1;
int show_debug = 0;
// *********************************
void mlb_print_master(MLB_HLS_MASTER_URL * master)
{
if (master)
{
int i;
printf("\n");
// printf("[MLB] Base64 (original): %s\n", master->args->base64_uri);
// printf("[MLB] Base64 (decoded): %s\n", master->b64_decoded);
printf("[MLB] Master URL: %s\n", master->master_url);
printf("[MLB] Base URL: %s\n", master->base_url);
printf("[MLB] Decryption Key: ");
for (i = 0; i < 16; i++)
{
printf("%02x", master->dec_key[i]);
}
printf("\n");
printf("[MLB] Params: %s\n", master->params);
for(i=0; i < master->stream_count; i++)
{
printf("[MLB] Stream #%d - %s - %d [%s]\n", i, master->streams[i].base_url, master->streams[i].bandwidth, master->streams[i].base_url_media);
}
printf("\n");
}
}
void mlb_print_iv(MLB_HLS_IV_STRUCT *m)
{
int j;
printf("IV Struct at pos (%d): (0x) ", m->pos);
for (j = 0; j < AES128_KEY_SIZE; j++)
{
printf("%02x", m->iv[j]);
}
if (m->aes)
{
printf(" AES: (0x) ");
for (j = 0; j < AES128_KEY_SIZE; j++)
{
printf("%02x", m->aes[j]);
}
}
printf("\n");
}
void mlb_print_aes(MLB_HLS_STREAM_URL *m)
{
int j;
printf("AES Key: (0x) ");
for (j = 0; j < AES128_KEY_SIZE; j++)
{
printf("%02x", m->aes_key[j]);
}
printf("\n");
}
// *********************************
void *mlb_cmd_thread(void *t)
{
if (t)
{
MLB_HLS_MASTER_URL * master = (MLB_HLS_MASTER_URL *)t;
int ed;
// printf("[MLB] Launching cmd thread (%s)\n", master->cmd_params);
ed = system(master->cmd_params);
printf("[MLB] command done, stopping everything now...\n");
master->do_loop = 0;
}
}
size_t mlb_playlist_curl_handler(void *buffer, size_t size, size_t nmemb, void *userp)
{
MLB_HLS_STREAM_URL *stream = (MLB_HLS_STREAM_URL*) userp;
if (buffer && size && nmemb && stream && (stream->playlist_size < (nmemb + stream->playlist_size)))
{
stream->playlist = realloc(stream->playlist, stream->playlist_size + nmemb);
memcpy(stream->playlist + stream->playlist_size , buffer, nmemb);
stream->playlist_size += nmemb;
}
return nmemb;
}
void mlb_refresh_playlists(MLB_HLS_MASTER_URL * master)
{
if (master && master->stream_count > 0)
{
int i;
CURLcode res;
for(i=0; i < master->stream_count; i++)
{
if (master->streams[i].state != MLB_HLS_STATE_LIVE)
{
printf("[MLB] Skipping Playlist: %s (reason: %s)\n", master->streams[i].base_url, MLB_STATE_STRINGS[master->streams[i].state]);
continue;
}
if (master->streams[master->current_priority].bandwidth != master->streams[i].bandwidth)
{
// printf("Skip fetching bw: %d (currently at: %d)\n", master->streams[i].bandwidth, master->streams[master->current_priority].bandwidth);
continue;
}
if (!master->streams[i].playlist_curl)
master->streams[i].playlist_curl = curl_easy_init();
if (master->streams[i].playlist_curl)
{
char error_buf[CURL_ERROR_SIZE] = {0};
char *tmp_url = calloc(1, MAX_STR_LEN);
sprintf(tmp_url, "%s%s\0", master->base_url, master->streams[i].base_url);
if (master->streams[i].playlist)
{
free(master->streams[i].playlist);
master->streams[i].playlist_size = 0;
master->streams[i].playlist = NULL;
}
if (show_debug)
{
printf("\n\n[MLB] Refreshing stream start...\n");
}
do
{
if (show_debug)
{
printf("[MLB] Refreshing Stream #%d - %s - %d (%d)\n", i, tmp_url, master->streams[i].bandwidth, master->streams[i].playlist_size);
}
// if (strlen(master->args->proxy_addr) > 5)
// curl_easy_setopt(master->streams[i].playlist_curl, CURLOPT_PROXY, master->args->proxy_addr);
curl_easy_setopt(master->streams[i].playlist_curl, CURLOPT_URL, tmp_url);
curl_easy_setopt(master->streams[i].playlist_curl, CURLOPT_TIMEOUT, 10);
curl_easy_setopt(master->streams[i].playlist_curl, CURLOPT_ERRORBUFFER, error_buf);
curl_easy_setopt(master->streams[i].playlist_curl, CURLOPT_CONNECTTIMEOUT, 1);
curl_easy_setopt(master->streams[i].playlist_curl, CURLOPT_WRITEFUNCTION, mlb_playlist_curl_handler);
curl_easy_setopt(master->streams[i].playlist_curl, CURLOPT_WRITEDATA, (void*)&master->streams[i]);
res = curl_easy_perform(master->streams[i].playlist_curl);
if (res != 0)
{
// if (show_debug)
{
printf("[MLB] (%d) Stream Refresh ERR: %s\n", res, error_buf);
}
curl_easy_cleanup(master->streams[i].playlist_curl);
SLEEP_250MS
master->streams[i].playlist_curl = curl_easy_init();
curl_easy_setopt(master->streams[i].playlist_curl, CURLOPT_FORBID_REUSE, 1);
curl_easy_setopt(master->streams[i].playlist_curl, CURLOPT_FRESH_CONNECT, 1);
SLEEP_250MS
}
} while (res != 0);
curl_easy_cleanup(master->streams[i].playlist_curl);
master->streams[i].playlist_curl = NULL;
if (show_debug)
{
printf("[MLB] Refreshing stream end...\n\n");
}
if (tmp_url)
free(tmp_url);
}
}
}
}
void mlb_master_sort_streams(MLB_HLS_MASTER_URL * master)
{
int i, j, tmp, stuff[master->stream_count];
for (i=0; i < master->stream_count; i++)
stuff[i] = master->streams[i].bandwidth;
for (i=0; i < master->stream_count-1; i++)
if (stuff[i+1] < stuff[i])
{
tmp = stuff[i];
stuff[i] = stuff[i+1];
stuff[i+1] = tmp;
}
j = master->stream_count - 1;
for (i=0; i < master->stream_count; i++)
for (tmp=0; tmp < master->stream_count; tmp++)
if (master->streams[tmp].bandwidth == stuff[i])
{
master->streams[tmp].priority = j--;
break;
}
if (master->args->bandwidth_max)
for (i=0; i < master->stream_count; i++)
if (master->streams[i].bandwidth > master->args->bandwidth_max)
master->streams[i].priority = -1;
for (i=0; i < master->stream_count; i++)
if (master->streams[i].priority > -1)
if (master->current_priority == -1)
master->current_priority = i;
else if (master->streams[i].priority < master->streams[master->current_priority].priority)
master->current_priority = i;
if (master->args->bandwidth_start)
{
for (i=0; i < master->stream_count; i++)
{
if (master->streams[i].priority > -1 &&
master->streams[i].bandwidth == master->args->bandwidth_start)
{
master->current_priority = i;
}
}
}
if (show_debug)
{
printf("[MLB] Current Priority: %d (bw: %d)\n", master->current_priority, master->streams[master->current_priority].bandwidth);
for (i=0; i < master->stream_count; i++)
printf("bw: %d, prio: %d\n", master->streams[i].bandwidth, master->streams[i].priority);
}
// master->current_priority = 5;
}
void *mlb_refresh_playlists_thread(void *t)
{
size_t file_check_sz = 0;
time_t file_check_time = time(NULL);
if (t)
{
int i, loop=1;
MLB_HLS_MASTER_URL * master = (MLB_HLS_MASTER_URL *)t;
printf("[MLB] Playlist refresh time: %d (s)\n", master->args->refresh_time);
while (loop && master->do_loop)
{
pthread_mutex_lock(&master->playlist_mutex);
mlb_refresh_playlists(master);
for (i=0; i < master->stream_count; i++)
if (master->streams[i].state == MLB_HLS_STATE_LIVE)
break;
if (i >= master->stream_count)
loop = 0;
pthread_mutex_unlock(&master->playlist_mutex);
if (master->args->output.name && 1)
{
struct stat st1;
memset(&st1, 0, sizeof(struct stat));
stat(master->args->output.name, &st1);
if (file_check_time && file_check_sz)
{
time_t t_tmp = time(NULL);
if (t_tmp - file_check_time > (master->args->refresh_time*4))
{
if (st1.st_size == file_check_sz)
{
loop = 0;
master->do_loop = 0;
continue;
}
file_check_time = t_tmp;
}
}
file_check_sz = st1.st_size;
if (show_debug)
{
printf("-- TS Filesize: %" PRId64 "\n", file_check_sz);
}
}
if (loop)
{
for(i = 0; i < master->args->refresh_time*4; i++)
{
if (!master->do_loop)
break;
SLEEP_250MS
}
}
}
}
printf("[MLB] Stream thread exiting\n");
}
// *********************************
MLB_HLS_IV_STRUCT * mlb_getiv_from_pos(MLB_HLS_STREAM_URL* stream, int pos)
{
MLB_HLS_IV_STRUCT * ret = NULL;
if (stream && pos >0)
{
int i;
for(i=0; i < stream->iv_count; i++)
{
if (stream->iv_keys[i].pos == pos)
{
ret = &stream->iv_keys[i];
break;
}
}
}
return ret;
}
int mlb_stream_getline(MLB_HLS_STREAM_URL* stream, int line_num, char * fill, int fill_len)
{
int ret = -1;
if (stream && line_num > 0)
{
TEXTFILE_IN_MEMORY *m = memfile_init(stream->playlist, stream->playlist_size);
if (m)
{
int i;
char *tmp;
for(i=1; i <= line_num; i++)
{
tmp = memfile_getnext_line(m, 0);
if (tmp == NULL)
break;
}
if (i == (line_num+1))
{
strncpy(fill, tmp, fill_len);
ret = i;
}
free(m);
}
}
return ret;
}
size_t mlb_url_decryptor(void *buffer, size_t size, size_t nmemb, void *userp)
{
MLB_URL_PASS *dec = (MLB_URL_PASS*)userp;
if (buffer && size && nmemb && dec)
{
if (dec->write_pos + nmemb < dec->write_size)
{
memcpy(dec->write_buf + dec->write_pos, buffer, nmemb);
dec->write_pos += nmemb;
}
else
printf("mlb_url_decryptor: out of memory!\n");
}
return nmemb;
}
size_t mlb_key_curl_handler(void *buffer, size_t size, size_t nmemb, void *userp)
{
MLB_HLS_STREAM_URL *stream = (MLB_HLS_STREAM_URL*) userp;
if (stream && stream->parent && buffer && nmemb)
{
char * _tmp = (char *)buffer;
MLB_HLS_MASTER_URL * master = stream->parent;
AES_KEY key;
memset(&key, 0, sizeof(AES_KEY));
b64decode(_tmp);
AES_set_decrypt_key(master->dec_key, 128, &key);
AES_decrypt(_tmp, stream->aes_key, &key);
}
return nmemb;
}
void mlb_get_hls_key(MLB_HLS_STREAM_URL *stream)
{
if (stream)
{
CURLcode res;
if (!stream->key_curl)
stream->key_curl = curl_easy_init();
if (stream->key_curl)
{
char error_buf[CURL_ERROR_SIZE] = {0};
do
{
if (strlen(stream->parent->args->proxy_addr) > 5)
curl_easy_setopt(stream->key_curl, CURLOPT_PROXY, stream->parent->args->proxy_addr);
curl_easy_setopt(stream->key_curl, CURLOPT_URL, stream->hls_key_url);
curl_easy_setopt(stream->key_curl, CURLOPT_ERRORBUFFER, error_buf);
curl_easy_setopt(stream->key_curl, CURLOPT_WRITEFUNCTION, mlb_key_curl_handler);
curl_easy_setopt(stream->key_curl, CURLOPT_WRITEDATA, (void*)stream);
res = curl_easy_perform(stream->key_curl);
if (res != 0)
{
printf("[MLB] Get HLS Key ERR: %s\n", error_buf);
SLEEP_250MS
}
} while (res != 0);
curl_easy_cleanup(stream->key_curl);
stream->key_curl = NULL;
}
}
}
size_t mlb_master_curl_handler(void *buffer, size_t size, size_t nmemb, void *userp)
{
int i=0, loop = 1;
char *line2 = (char *)buffer;
TEXTFILE_IN_MEMORY *m = memfile_init(line2, (int)nmemb);
MLB_HLS_MASTER_URL * master = (MLB_HLS_MASTER_URL *)userp;
// printf("Lines: %d\n", m->line_count);
line2 = memfile_getnext_line(m, 1);
if (strncmp(line2, HLS_START_MARKER, strlen(HLS_START_MARKER)) == 0)
{
char * line = NULL;
char *bw = NULL;
i = 1;
do
{
line = memfile_getnext_line(m, 1);
if (line)
{
bw = strstr(line, HLS_BANDWIDTH_MARKER);
if (bw)
{
char * path = memfile_getnext_line(m, 1);
if (path)
{
bw += strlen(HLS_BANDWIDTH_MARKER);
mlb_master_add_stream(master, path, atoi(bw));
// printf("%d - %s -- %s\n", i, path, bw);
i++;
}
}
bw = NULL;
i++;
}
else
loop = 0;
} while (loop);
}
else
{
printf("[MLB] First Line in M3U8 is not %s: %s\n", HLS_START_MARKER, line2);
}
free(m);
return nmemb;
}
void _mlb_deinit_master(MLB_HLS_MASTER_URL * m)
{
if (m)
{
pthread_mutex_destroy(&m->playlist_mutex);
if (m->media_in)
free(m->media_in);
if (m->media_out)
free(m->media_out);
if (m->args)
free(m->args);
}
}
MLB_HLS_MASTER_URL * _mlb_init_master(void)
{
MLB_HLS_MASTER_URL * ret = calloc(1, sizeof(MLB_HLS_MASTER_URL));
if (ret)
{
int i;
ret->current_priority = -1;
for(i=0; i < MLB_HLS_MAX_STREAMS; i++)
{
ret->streams[i].state = MLB_HLS_STATE_LIVE;
ret->streams[i].cache = 1;
ret->streams[i].parent = ret;
ret->streams[i].priority = -1;
}
if (pthread_mutex_init(&ret->playlist_mutex, NULL))
{
printf("[MLB] pthread_mutex_init error!\n");
}
ret->do_loop = 1;
ret->media_size = MLB_HLS_DEFAULT_BUFSIZE;
ret->media_in = calloc(1, ret->media_size);
ret->media_out = calloc(1, ret->media_size);
ret->media_pos = 0;
}
return ret;
}
MLB_HLS_MASTER_URL * mlb_get_master(MLB_OPT_ARGS* args)
{
MLB_HLS_MASTER_URL * ret = NULL;
if (args)
{
ret = _mlb_init_master();
if (ret)
{
char *token;
char * _tmp = calloc(1,MAX_STR_LEN);
int i, len;
ret->args = args;
len = strlen(ret->args->base64_uri);
memcpy(ret->b64_decoded, ret->args->base64_uri, len);
ret->b64_decoded_len = b64decode(ret->b64_decoded);
memcpy(_tmp, ret->b64_decoded, ret->b64_decoded_len);
// Master URL
token = strtok(_tmp, "|");
if (token)
{
strncpy(ret->master_url, token, MAX_STR_LEN);
strncpy(ret->base_url, token, MAX_STR_LEN);
for(i = strlen(ret->base_url); i > 0; i--)
{
if (ret->base_url[i] == '/' && (i < strlen(ret->base_url)-1))
{
ret->base_url[i+1] = '\0';
break;
}
}
}
// Decryption Key
token = strtok(NULL, "|");
if (token)
{
char * _tmp_key = calloc(1, MAX_STR_LEN);
strcpy(_tmp_key, token);
b64decode(_tmp_key);
for (i = 0; i < 16; i++)
{
ret->dec_key[i] = (uint8_t)_tmp_key[i];
}
if (_tmp_key)
free(_tmp_key);
}
// Params
token = strtok(NULL, "|");
if (token)
{
strncpy(ret->params, token, MAX_STR_LEN);
}
if(_tmp)
free(_tmp);
}
}
return ret;
}
int mlb_process_stream_key(MLB_HLS_STREAM_URL *stream, char *line, int pos)
{
MLB_HLS_MASTER_URL * master = stream->parent;
int ret = 0;
if (stream && line)
{
int i, j=0, z;
char *ks[3]= {NULL, NULL, NULL};
char better[32+1];
char *line_copy = calloc(1, MAX_STR_LEN);
strcpy(line_copy, line);
z = strlen(line_copy);
ks[j++] = line_copy;
for(i=0; i < z; i++)
{
if (line_copy[i] == ',')
{
line_copy[i] = '\0';
ks[j++] = &line_copy[i+1];
}
}
ks[0] += 11;
ks[1] += 5;
ks[1][strlen(ks[1])-1] = '\0';
if (!stream->key_type)
{
if (strcmp(ks[0], HLS_AES128_DESC) == 0)
stream->key_type = MLB_KEY_TYPE_AES128;
else
printf("unknown enc method: %s\n", ks[0]);
}
if (strlen(stream->hls_key_url) == 0)
{
strcpy(stream->hls_key_url, ks[1]);
strcat(stream->hls_key_url, "&");
strcat(stream->hls_key_url, master->params);
mlb_get_hls_key(stream);
}
for(i=0; i < 32; i++)
better[i] = ks[2][i+5];
better[i] = '\0';
i = str_to_bytes(better, (unsigned char*)&stream->iv_keys[stream->iv_count].iv, AES128_KEY_SIZE);
stream->iv_keys[stream->iv_count].pos = (pos+1);
if (line_copy)
free(line_copy);
stream->iv_count++;
}
return ret;
}
int mlb_master_switch_bw(MLB_HLS_MASTER_URL * master, int down)
{
int ret = 0;
if (master->current_seg_line)
{
int j, prio;
if (down >= 1)
prio = master->streams[master->current_priority].priority + 1;
else
prio = master->streams[master->current_priority].priority - 1;
if (prio < 0 || prio >= master->stream_count)
{
// printf("[MLB] priority of %d (prio: %d) is the lowest/highest I can go\n", prio-1, prio);
return 0;
}
// printf("[MLB] New prio: %d, old: %d\n", prio, master->streams[master->current_priority].priority);
for (j=0; j < master->stream_count; j++)
if (master->streams[j].priority != -1 && master->streams[j].priority == prio)
break;
if (!(j >= master->stream_count) && master->streams[j].bandwidth >= master->args->bandwidth_min)
{
printf("debug, switching from: %d, switching to: %d (index in list: %d)\n", master->streams[master->current_priority].bandwidth, master->streams[j].bandwidth, j);
master->current_priority = j;
master->current_iv = mlb_getiv_from_pos(&master->streams[j], master->last_key_line);
master->current_iv->aes = (uint8_t *)&master->streams[j].aes_key;
// printf("Last_key pos: %d, \n", master->last_key_line);
return 1;
}
else if (master->streams[j].bandwidth < master->args->bandwidth_min)
{
printf("[MLB] Minimum bandiwdth: %d, not switching to: %d\n", master->args->bandwidth_min, master->streams[j].bandwidth);
}
}
return 0;
}
void mlb_process_streams(MLB_HLS_STREAM_URL *stream)
{
MLB_HLS_MASTER_URL * master = stream->parent;
TEXTFILE_IN_MEMORY *m = memfile_init(stream->playlist, stream->playlist_size);
char *line = NULL;
int i, loop = 1;
// printf("[MLB] -- Processing playlist, bw: %d Start line: %d\n", stream->bandwidth, stream->line_pos);
stream->line_count = memfile_getline_count(m);
for(i=0; i < stream->line_pos; i++)
memfile_getnext_line(m, 0);
do
{
line = memfile_getnext_line(m, 1);
// printf("line: %s\n", line);
if (line)
{
switch(stream->line_pos)
{
case HLS_HEADER_POS :
if (strncmp(line, HLS_START_MARKER, strlen(HLS_START_MARKER)) != 0)
{
printf("[MLB] (bw: %d) Invalid Playlist (start marker): %s\n", stream->bandwidth, line);
stream->state = MLB_HLS_STATE_BAD;
loop = 0;
}
break;
case HLS_DATETIME_POS:
{
char *tmp = line + strlen(HLS_DATETIME_MARKER);
struct tm tm;
if (strptime(tmp, MLB_HLS_TIME_FORMAT, &tm) != 0)
stream->start_time = mktime(&tm);
else
printf("strptime ... ERRORRORORORORO\n");
// printf("year: %d; month: %d; hour: %d; min: %d; sec: %d\n", 1900 + tm.tm_year, 1+tm.tm_mon, tm.tm_hour, tm.tm_min, tm.tm_sec);
}
break;
case HLS_FIRSTKEY_POS:
mlb_process_stream_key(stream, line, stream->line_pos);
break;
default:
if (line[0] == '#' && line[1] == 'E' && line[2] == 'X' && line[3] == 'T')
{
if (strstr(HLS_END_MARKER, line) != NULL)
{
printf("[MLB] END OF PLAYLIST! (rate: %d)\n", stream->bandwidth);
stream->state = MLB_HLS_STATE_END;
loop = 0;
}
else if (strstr(line, HLS_KEY_MARKER) != NULL)
{
mlb_process_stream_key(stream, line, stream->line_pos);
}
else if (!stream->seg_time && strstr(line, HLS_SEGMENT_LEN_MARKER) != NULL)
{
stream->seg_time = atoi(line + strlen(HLS_SEGMENT_LEN_MARKER));
// printf("[MLB] Segment time: %d (bw: %d)\n", stream->seg_time, stream->bandwidth);
}
}
break;
}
stream->line_pos++;
}
} while (line && loop);
// printf("[MLB] -- Processing playlist done, bw: %d end line: %d\n", stream->bandwidth, stream->line_pos);
}
void mlb_master_add_stream(MLB_HLS_MASTER_URL *m, char *url, int bandwidth)
{
if (m && url && bandwidth)
{
int i;
for (i=strlen(url) - 1 ; i > 0; i--)
{
if (url[i] == '/')
break;
}
strncpy(m->streams[m->stream_count].base_url, url, MAX_STR_LEN);
strncpy(m->streams[m->stream_count].base_url_media, url, i+1);
m->streams[m->stream_count++].bandwidth = bandwidth;
}
}
int mlb_hls_get_and_decrypt(MLB_URL_PASS *p, char *url)
{
int ret = 0;
if (p && p->parent && p->stream)
{
CURLcode res;
char content_url[MAX_STR_LEN];
CURL * _curl = curl_easy_init();
MLB_HLS_MASTER_URL *master = p->parent;
MLB_HLS_STREAM_URL *stream = p->stream;
sprintf(content_url, "%s%s%s\0", master->base_url, stream->base_url_media, url);
// printf("GET URL: %s\n",content_url);
if (_curl)
{
char error_buf[CURL_ERROR_SIZE] = {0};
int segtime = stream->seg_time + 2;
if (!segtime)
segtime = DATA_XFER_TIMEOUT;
if (show_debug)
{
printf("[MLB] DEBUG - Fetch start: %d\n", stream->seg_time);
}
do
{
if (strlen(master->args->proxy_addr) > 5)
curl_easy_setopt(_curl, CURLOPT_PROXY, master->args->proxy_addr);
curl_easy_setopt(_curl, CURLOPT_URL, content_url);
curl_easy_setopt(_curl, CURLOPT_TIMEOUT, segtime*1.8);
curl_easy_setopt(_curl, CURLOPT_CONNECTTIMEOUT, 1);
curl_easy_setopt(_curl, CURLOPT_ERRORBUFFER, error_buf);
curl_easy_setopt(_curl, CURLOPT_WRITEFUNCTION, mlb_url_decryptor);
curl_easy_setopt(_curl, CURLOPT_WRITEDATA, (void*)p);
curl_easy_setopt(_curl, CURLOPT_FORBID_REUSE, 1);
curl_easy_setopt(_curl, CURLOPT_FRESH_CONNECT, 1);
if (!master->do_loop)
return -2;
res = curl_easy_perform(_curl);
if (res != 0)
{
curl_easy_cleanup(_curl);
SLEEP_250MS
_curl = curl_easy_init();
//if (show_debug)
{
printf("[MLB] (%d) Chunk Get Error: %s, URL: %s\n", res, error_buf, content_url);
}
SLEEP_250MS
}
}
while (res != 0);
curl_easy_cleanup(_curl);
if (show_debug)
{
printf("[MLB] DEBUG - Fetch done...\n");
}
if (!res)
{
int out_len = 0, lastDecryptLength = 0;
EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
EVP_CIPHER_CTX_init(ctx);
if (EVP_DecryptInit_ex(ctx, EVP_aes_128_cbc(), NULL, master->current_iv->aes, master->current_iv->iv) == 1)
{
if (EVP_DecryptUpdate(ctx, master->media_out, &out_len, p->write_buf, p->write_pos) == 1)
{
if (EVP_DecryptFinal_ex(ctx, master->media_out + out_len, &lastDecryptLength) == 1)
{
// printf("[MLB] DBEUG -- Decrypt good: %s (%d)\n", url, out_len + lastDecryptLength);
output_handle_write_data(&master->args->output, master->media_out, out_len + lastDecryptLength, 1);
ret = out_len + lastDecryptLength;
}
else
{
printf("[MLB] ERROR!!!!!!!!! BAD DECRYPT [1]\n");
ret = -1;
}
}
}
else
{
printf("[MLB] ERROR!!!!!!!!! BAD DECRYPT [2]\n");
ret = -2;
}
EVP_CIPHER_CTX_cleanup(ctx);
}
master->seg_count++;
}
}
return ret;
}
void display_usage(char *exe)
{
int i;
printf("Usage: %s [options] -B <base64> -o <output_file>\n\n", exe );
printf("Required:\n");
printf("\t-B, --base64\t\t\tbase64 url\n");
printf("\t-o, --ouput\t\t\tFile to output to\n");
printf("Options:\n");
printf("\n\t-V, --verbose\t\t\tVerbose output (big V, use multiple times to increase verbosity)\n");
}
static const char *optString = "B:o:s:c:p:l:f:b:m:r:?VhLd";
static const struct option longOpts[] =
{
{ "output", required_argument, NULL, 'o' },
{ "base64", required_argument, NULL, 'B' },
{ "bitrate", optional_argument, NULL, 'b' },
{ "mbit", optional_argument, NULL, 'b' },
{ "sbitrate", optional_argument, NULL, 's' },
{ "refresh", optional_argument, NULL, 'r' },
{ "cfg", optional_argument, NULL, 'c' },
{ "proxy", optional_argument, NULL, 'p' },
{ "lw", optional_argument, NULL, 'l' },
{ "first", optional_argument, NULL, 'f' },
{ "lock", optional_argument, NULL, 'L' },
{ "debug", optional_argument, NULL, 'd' },
{ "verbose", no_argument, NULL, 'V' },
{ "help", no_argument, NULL, 'h' },
{ NULL, no_argument, NULL, 0 }
};
uint8_t get_opts(int argc, char *const argv[], MLB_OPT_ARGS *opts)
{
int index = 0;
int opt = 0;
do
{
opt = getopt_long(argc, argv, optString, longOpts, &index);
switch (opt)
{
case 'B':
strncpy(opts->base64_uri, optarg, MAX_STR_LEN);
break;