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#include "src_lyrics.h"
#include "easy_download.h"
#include <expat.h>
#include <string.h>
#include "options.h"
#define LEOSLYRICS_SEARCH_URL "http://api.leoslyrics.com/api_search.php?auth=ncmpc&artist=%s&songtitle=%s"
#define LEOSLYRICS_CONTENT_URL "http://api.leoslyrics.com/api_lyrics.php?auth=ncmpc&hid=%s"
#define CREDITS "Lyrics provided by www.LeosLyrics.com"
char *hid;
XML_Parser parser, contentp;
int check_dl_progress(void *clientp, double dltotal, double dlnow,
double ultotal, double ulnow)
{
if(g_timer_elapsed(dltime, NULL) >= options.lyrics_timeout || lock == 4)
{
formed_text_init(&lyr_text);
return -1;
}
return 0;
}
static void check_content(void *data, const char *name, const char **atts)
{
if(strstr(name, "text") != NULL)
{
result |= 16;
}
}
static void check_search_response(void *data, const char *name,
const char **atts)
{
if(strstr(name, "response") != NULL)
{
result |=2;
return;
}
if(result & 4)
{
if(strstr(name, "result") != NULL)
{
if(strstr(atts[2], "hid") != NULL)
{
hid = strdup (atts[3]);
}
if(strstr(atts[2], "exactMatch") != NULL)
{
result |= 8;
}
}
}
}
static void end_tag(void *data, const char *name)
{
//hmmmmmm
}
static void check_search_success(void *userData, const XML_Char *s, int len)
{
if(result & 2) //lets first check whether we're right
{ //we don't really want to search in the wrong string
if(strstr((char*) s, "SUCCESS"))
{
result |=4;
}
}
}
static void fetch_text(void *userData, const XML_Char *s, int len)
{
if(result & 16)
{
if (s[0] == 13 ) return; //ignore any single carriage returns
add_text_line(&lyr_text, s, len);
}
}
/*int deregister_lyr_leoslyrics ()
{
}*/
int check_lyr_leoslyrics(char *artist, char *title, char *url)
{
char url_avail[256];
CURL *curl = curl_easy_init ();
//this replacess the whitespaces with '+'
char *esc_title = curl_easy_escape (curl, title, 0);
char *esc_artist = curl_easy_escape (curl, artist, 0);
//we insert the artist and the title into the url
snprintf(url_avail, 512, LEOSLYRICS_SEARCH_URL, esc_artist, esc_title);
//download that xml!
easy_download_struct lyr_avail = {NULL, 0,-1};
g_timer_start(dltime);
if(!easy_download(url_avail, &lyr_avail, check_dl_progress)) return -1;
g_timer_stop(dltime);
//we gotta parse that stuff with expat
parser = XML_ParserCreate(NULL);
XML_SetUserData(parser, NULL);
XML_SetElementHandler(parser, check_search_response, end_tag);
XML_SetCharacterDataHandler(parser, check_search_success);
XML_Parse(parser, lyr_avail.data, strlen(lyr_avail.data), 0);
XML_ParserFree(parser);
if(!(result & 4)) return -1; //check whether lyrics found
char *esc_hid = curl_easy_escape (curl, hid, 0);
free (hid);
snprintf(url, 512, LEOSLYRICS_CONTENT_URL, esc_hid);
return 0;
}
int get_lyr_leoslyrics(char *artist, char *title)
{
char url_hid[256];
if(dltime == NULL) dltime = g_timer_new();
if(check_lyr_leoslyrics(artist, title, url_hid) != 0) return -1;
easy_download_struct lyr_content = {NULL, 0,-1};
g_timer_continue(dltime);
if(!(easy_download(url_hid, &lyr_content, check_dl_progress))) return -1;
g_timer_stop(dltime);
contentp = XML_ParserCreate(NULL);
XML_SetUserData(contentp, NULL);
XML_SetElementHandler(contentp, check_content, end_tag);
XML_SetCharacterDataHandler(contentp, fetch_text);
XML_Parse(contentp, lyr_content.data, strlen(lyr_content.data), 0);
XML_ParserFree(contentp);
return 0;
}
int register_lyr_leoslyrics (src_lyr *source_descriptor)
{
source_descriptor->check_lyr = check_lyr_leoslyrics;
source_descriptor->get_lyr = get_lyr_leoslyrics;
source_descriptor->name = "Leoslyrics";
source_descriptor->description = "powered by http://www.leoslyrics.com";
}
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