diff options
| -rw-r--r-- | np.c | 184 |
1 files changed, 184 insertions, 0 deletions
@@ -0,0 +1,184 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <json.h> +#include <curl/curl.h> + +#define USER "user" +#define KEY "key" + +static CURL *curl; + +struct track { + char *artist, *album, *title, *user_play_count, *top_tag; +}; + +void track_free(struct track *t) +{ + free(t->artist); + free(t->album); + free(t->title); + free(t->user_play_count); + free(t->top_tag); + free(t); +} + +struct json_builder { + json_object *obj; + json_tokener *tok; +}; + +size_t parse_cb(char *ptr, size_t size, size_t nmemb, struct json_builder *jb) +{ + jb->obj = json_tokener_parse_ex(jb->tok, ptr, nmemb); + return nmemb; +} + +json_object *perform_json_curl(char *uri) +{ + struct json_builder jb = {0, json_tokener_new()}; + + curl_easy_setopt(curl, CURLOPT_URL, uri); + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, parse_cb); + curl_easy_setopt(curl, CURLOPT_WRITEDATA, &jb); + CURLcode res = curl_easy_perform(curl); + if (res != CURLE_OK) exit(1); + + json_tokener_free(jb.tok); + return jb.obj; +} + +json_object *fetch_recent_tracks(const char *user) +{ + char uri[2048]; + snprintf( + uri, 2048, + "http://ws.audioscrobbler.com/2.0/?method=user.getrecenttracks&" + "api_key="KEY"&user=%s&format=json", + user); + + return perform_json_curl(uri); +} + +json_object *fetch_track_info(const char *user, char *artist, char *title) +{ + char *c_artist = curl_easy_escape(curl, artist, 0); + char *c_title = curl_easy_escape(curl, title, 0); + + char uri[2048]; + snprintf( + uri, 2048, + "http://ws.audioscrobbler.com/2.0/?method=track.getInfo&" + "api_key="KEY"&user=%s&artist=%s&track=%s&format=json", + user, c_artist, c_title); + + curl_free(c_artist); + curl_free(c_title); + + return perform_json_curl(uri); +} + +const char *get_artist(json_object *obj) +{ + json_object *tmp; + json_object_object_get_ex(obj, "artist", &tmp); + json_object_object_get_ex(tmp, "#text", &tmp); + return json_object_get_string(tmp); +} + +const char *get_album(json_object *obj) +{ + json_object *tmp; + json_object_object_get_ex(obj, "album", &tmp); + json_object_object_get_ex(tmp, "#text", &tmp); + return json_object_get_string(tmp); +} + +const char *get_title(json_object *obj) +{ + json_object *tmp; + json_object_object_get_ex(obj, "name", &tmp); + return json_object_get_string(tmp); +} + +struct track *get_recent_track(const char *user) +{ + json_object *tmp, *json = fetch_recent_tracks(user); + json_object_object_get_ex(json, "recenttracks", &tmp); + json_object_object_get_ex(tmp, "track", &tmp); + tmp = json_object_array_get_idx(tmp, 0); + + struct track *t = calloc(1, sizeof(*t)); + const char *str; + if ((str = get_artist(tmp))) + t->artist = strdup(str); + if ((str = get_album(tmp))) + t->album = strdup(str); + if ((str = get_title(tmp))) + t->title = strdup(str); + + json_object_put(json); + return t; +} + +const char *get_user_play_count(json_object *obj) +{ + json_object *tmp; + json_object_object_get_ex(obj, "userplaycount", &tmp); + return json_object_get_string(tmp); +} + +const char *get_top_tag(json_object *obj) +{ + json_object *tmp; + json_object_object_get_ex(obj, "toptags", &tmp); + json_object_object_get_ex(tmp, "tag", &tmp); + if (json_object_get_type(tmp) == json_type_array) + tmp = json_object_array_get_idx(tmp, 0); + json_object_object_get_ex(tmp, "name", &tmp); + return json_object_get_string(tmp); +} + +void add_track_info(struct track *t, const char *user) +{ + if (!t->artist || !t->title) return; + + json_object *tmp, *json = fetch_track_info(user, t->artist, t->title); + json_object_object_get_ex(json, "track", &tmp); + + const char *str; + if ((str = get_user_play_count(tmp))) + t->user_play_count = strdup(str); + if ((str = get_top_tag(tmp))) + t->top_tag = strdup(str); + + json_object_put(json); +} + +int main(int argc, char *argv[]) +{ + curl_global_init(CURL_GLOBAL_DEFAULT); + curl = curl_easy_init(); + if (!curl) exit(1); + + const char *user = (argc > 1) ? argv[1] : USER; + struct track *t = get_recent_track(user); + add_track_info(t, user); + + printf("np"); + if (argc > 1) + printf(" (%s)", user); + printf(": %s - ", t->artist); + if (t->album && strlen(t->album) > 0) + printf("%s - ", t->album); + printf("%s (plays: %s)", t->title, t->user_play_count ?: "0"); + if (t->top_tag) + printf(" (%s)", t->top_tag); + printf("\n"); + + track_free(t); + curl_easy_cleanup(curl); + curl_global_cleanup(); + return 0; +} |