1 #include "src_lyrics.h"
2 #include "easy_download.h"
3 #include <expat.h>
4 #include <string.h>
5 #include "options.h"
7 #define LEOSLYRICS_SEARCH_URL "http://api.leoslyrics.com/api_search.php?auth=ncmpc&artist=%s&songtitle=%s"
8 #define LEOSLYRICS_CONTENT_URL "http://api.leoslyrics.com/api_lyrics.php?auth=ncmpc&hid=%s"
9 #define CREDITS "Lyrics provided by www.LeosLyrics.com"
11 char *hid;
12 XML_Parser parser, contentp;
14 int check_dl_progress(void *clientp, double dltotal, double dlnow,
15 double ultotal, double ulnow)
16 {
17 if(g_timer_elapsed(dltime, NULL) >= options.lyrics_timeout || lock == 4)
18 {
19 formed_text_init(&lyr_text);
20 return -1;
21 }
23 return 0;
24 }
28 static void check_content(void *data, const char *name, const char **atts)
29 {
30 if(strstr(name, "text") != NULL)
31 {
33 result |= 16;
34 }
35 }
38 static void check_search_response(void *data, const char *name,
39 const char **atts)
40 {
41 if(strstr(name, "response") != NULL)
42 {
43 result |=2;
44 return;
45 }
47 if(result & 4)
48 {
49 if(strstr(name, "result") != NULL)
50 {
51 if(strstr(atts[2], "hid") != NULL)
52 {
53 hid = strdup (atts[3]);
54 }
56 if(strstr(atts[2], "exactMatch") != NULL)
57 {
58 result |= 8;
59 }
60 }
61 }
63 }
65 static void end_tag(void *data, const char *name)
66 {
67 //hmmmmmm
68 }
70 static void check_search_success(void *userData, const XML_Char *s, int len)
71 {
72 if(result & 2) //lets first check whether we're right
73 { //we don't really want to search in the wrong string
74 if(strstr((char*) s, "SUCCESS"))
75 {
76 result |=4;
77 }
78 }
79 }
81 static void fetch_text(void *userData, const XML_Char *s, int len)
82 {
83 if(result & 16)
84 {
85 if (s[0] == 13 ) return; //ignore any single carriage returns
86 add_text_line(&lyr_text, s, len);
87 }
88 }
90 /*int deregister_lyr_leoslyrics ()
91 {
93 }*/
95 int check_lyr_leoslyrics(char *artist, char *title, char *url)
96 {
97 char url_avail[256];
99 //this replacess the whitespaces with '+'
100 g_strdelimit(artist, " ", '+');
101 g_strdelimit(title, " ", '+');
103 //we insert the artist and the title into the url
104 snprintf(url_avail, 512, LEOSLYRICS_SEARCH_URL, artist, title);
106 //download that xml!
107 easy_download_struct lyr_avail = {NULL, 0,-1};
109 g_timer_start(dltime);
110 if(!easy_download(url_avail, &lyr_avail, check_dl_progress)) return -1;
111 g_timer_stop(dltime);
113 //we gotta parse that stuff with expat
114 parser = XML_ParserCreate(NULL);
115 XML_SetUserData(parser, NULL);
117 XML_SetElementHandler(parser, check_search_response, end_tag);
118 XML_SetCharacterDataHandler(parser, check_search_success);
119 XML_Parse(parser, lyr_avail.data, strlen(lyr_avail.data), 0);
120 XML_ParserFree(parser);
122 if(!(result & 4)) return -1; //check whether lyrics found
124 CURL *curl = curl_easy_init ();
125 char *esc_hid = curl_easy_escape (curl, hid, 0);
126 free (hid);
128 snprintf(url, 512, LEOSLYRICS_CONTENT_URL, esc_hid);
130 return 0;
131 }
133 int get_lyr_leoslyrics(char *artist, char *title)
134 {
135 char url_hid[256];
136 if(dltime == NULL) dltime = g_timer_new();
138 if(check_lyr_leoslyrics(artist, title, url_hid) != 0) return -1;
140 easy_download_struct lyr_content = {NULL, 0,-1};
141 g_timer_continue(dltime);
142 if(!(easy_download(url_hid, &lyr_content, check_dl_progress))) return -1;
143 g_timer_stop(dltime);
145 contentp = XML_ParserCreate(NULL);
146 XML_SetUserData(contentp, NULL);
147 XML_SetElementHandler(contentp, check_content, end_tag);
148 XML_SetCharacterDataHandler(contentp, fetch_text);
149 XML_Parse(contentp, lyr_content.data, strlen(lyr_content.data), 0);
150 XML_ParserFree(contentp);
152 return 0;
154 }
155 int register_lyr_leoslyrics (src_lyr *source_descriptor)
156 {
157 source_descriptor->check_lyr = check_lyr_leoslyrics;
158 source_descriptor->get_lyr = get_lyr_leoslyrics;
160 source_descriptor->name = "Leoslyrics";
161 source_descriptor->description = "powered by http://www.leoslyrics.com";
162 }