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merged id3 non-root mode parser and index mode parser together

This commit is contained in:
Fufu Fang 2019-10-28 12:44:35 +00:00
parent 82b7bd337b
commit ea13c175cd
No known key found for this signature in database
GPG Key ID: 0F6BB5EF6F8BB729
1 changed files with 57 additions and 119 deletions
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176
src/sonic.c
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@ -160,22 +160,41 @@ static char *sonic_stream_link(const char *id)
* parser terminates the strings properly, which is a fair assumption,
* considering how mature expat is.
*/
static void XMLCALL XML_parser_index(void *data, const char *elem,
static void XMLCALL XML_parser_general(void *data, const char *elem,
const char **attr)
{
/* Error checking */
if (!strcmp(elem, "error")) {
fprintf(stderr, "XML_parser_index() error:\n");
fprintf(stderr, "XML_parser_general() error:\n");
for (int i = 0; attr[i]; i += 2) {
fprintf(stderr, "%s: %s\n", attr[i], attr[i+1]);
}
exit(EXIT_FAILURE);
}
LinkTable *linktbl = (LinkTable *) data;
Link *link;
if (!strcmp(elem, "child") || !strcmp(elem, "artist")) {
/*
* Please refer to the documentation at the function prototype of
* sonic_LinkTable_new_id3()
*/
if (!strcmp(elem, "child")) {
link = CALLOC(1, sizeof(Link));
/* Initialise to LINK_DIR, as the LINK_FILE is set later. */
link->type = LINK_DIR;
} else if (!strcmp(elem, "artist") && linktbl->links[0]->sonic_depth != 3) {
/* We want to skip the first "artist" element in the album table */
link = CALLOC(1, sizeof(Link));
link->type = LINK_DIR;
} else if (!strcmp(elem, "album") && linktbl->links[0]->sonic_depth == 3) {
link = CALLOC(1, sizeof(Link));
link->type = LINK_DIR;
/* This table should be a level 3 album table */
link->sonic_depth = 4;
} else if (!strcmp(elem, "song") && linktbl->links[0]->sonic_depth == 4) {
link = CALLOC(1, sizeof(Link));
link->type = LINK_FILE;
} else {
/* The element does not contain directory structural information */
return;
@ -184,6 +203,9 @@ static void XMLCALL XML_parser_index(void *data, const char *elem,
int id_set = 0;
int linkname_set = 0;
int track = 0;
char *title = "";
char *suffix = "";
for (int i = 0; attr[i]; i += 2) {
if (!strcmp("id", attr[i])) {
link->sonic_id = calloc(MAX_FILENAME_LEN + 1, sizeof(char));
@ -221,9 +243,6 @@ static void XMLCALL XML_parser_index(void *data, const char *elem,
if (!strcmp("isDir", attr[i])) {
if (!strcmp("false", attr[i+1])) {
link->type = LINK_FILE;
char *url = sonic_stream_link(link->sonic_id);
strncpy(link->f_url, url, MAX_PATH_LEN);
free(url);
}
continue;
}
@ -240,6 +259,27 @@ static void XMLCALL XML_parser_index(void *data, const char *elem,
link->content_length = atoll(attr[i+1]);
continue;
}
if (!strcmp("track", attr[i])) {
track = atoi(attr[i+1]);
continue;
}
if (!strcmp("title", attr[i])) {
title = (char *) attr[i+1];
continue;
}
if (!strcmp("suffix", attr[i])) {
suffix = (char *) attr[i+1];
continue;
}
}
if (!linkname_set && strlen(title) > 0 && strlen(suffix) > 0) {
snprintf(link->linkname, MAX_FILENAME_LEN, "%02d - %s.%s",
track, title, suffix);
linkname_set = 1;
}
/* Clean up if linkname or id is not set */
@ -248,6 +288,12 @@ static void XMLCALL XML_parser_index(void *data, const char *elem,
return;
}
if (link->type == LINK_FILE) {
char *url = sonic_stream_link(link->sonic_id);
strncpy(link->f_url, url, MAX_PATH_LEN);
free(url);
}
LinkTable_add(linktbl, link);
}
@ -298,7 +344,7 @@ LinkTable *sonic_LinkTable_new_index(const char *id)
} else {
url = sonic_gen_url_first_part("getIndexes");
}
LinkTable *linktbl = sonic_url_to_LinkTable(url, XML_parser_index, 0);
LinkTable *linktbl = sonic_url_to_LinkTable(url, XML_parser_general, 0);
free(url);
return linktbl;
}
@ -373,118 +419,10 @@ static void XMLCALL XML_parser_id3_root(void *data, const char *elem,
LinkTable_add(this_linktbl, link);
}
/* If we reach here, this element does not contain directory structural
* information */
}
static void XMLCALL XML_parser_id3(void *data, const char *elem,
const char **attr)
{
if (!strcmp(elem, "error")) {
fprintf(stderr, "XML_parser_id3() error:\n");
for (int i = 0; attr[i]; i += 2) {
fprintf(stderr, "%s: %s\n", attr[i], attr[i+1]);
}
exit(EXIT_FAILURE);
}
LinkTable *linktbl = (LinkTable *) data;
Link *link;
/*
* Please refer to the documentation at the function prototype of
* sonic_LinkTable_new_id3()
* If we reach here, then this element does not contain directory structural
* information
*/
if (!strcmp(elem, "album") && linktbl->links[0]->sonic_depth == 3) {
link = CALLOC(1, sizeof(Link));
link->type = LINK_DIR;
/* This table should be a level 3 album table */
link->sonic_depth = 4;
} else if (!strcmp(elem, "song") && linktbl->links[0]->sonic_depth == 4) {
link = CALLOC(1, sizeof(Link));
link->type = LINK_FILE;
} else {
return;
}
int id_set = 0;
int linkname_set = 0;
int track = 0;
char *title = "";
char *suffix = "";
for (int i = 0; attr[i]; i += 2) {
if (!strcmp("id", attr[i])) {
link->sonic_id = calloc(MAX_FILENAME_LEN + 1, sizeof(char));
strncpy(link->sonic_id, attr[i+1], MAX_FILENAME_LEN);
id_set = 1;
continue;
}
if (!strcmp("size", attr[i])) {
link->content_length = atoll(attr[i+1]);
continue;
}
if (!strcmp("created", attr[i])) {
struct tm *tm = calloc(1, sizeof(struct tm));
strptime(attr[i+1], "%Y-%m-%dT%H:%M:%S.000Z", tm);
link->time = mktime(tm);
free(tm);
continue;
}
/* This is used by the album table */
if (!strcmp("name", attr[i])) {
strncpy(link->linkname, attr[i+1], MAX_FILENAME_LEN);
linkname_set = 1;
continue;
}
if (!strcmp("path", attr[i])) {
memset(link->linkname, 0, MAX_FILENAME_LEN);
/* Skip to the last '/' if it exists */
char *s = strrchr(attr[i+1], '/');
if (s) {
strncpy(link->linkname, s + 1, MAX_FILENAME_LEN);
} else {
strncpy(link->linkname, attr[i+1], MAX_FILENAME_LEN);
}
linkname_set = 1;
continue;
}
if (!strcmp("track", attr[i])) {
track = atoi(attr[i+1]);
}
if (!strcmp("title", attr[i])) {
title = (char *) attr[i+1];
}
if (!strcmp("suffix", attr[i])) {
suffix = (char *) attr[i+1];
}
}
if (!linkname_set && strlen(title) > 0 && strlen(suffix) > 0) {
snprintf(link->linkname, MAX_FILENAME_LEN, "%02d - %s.%s",
track, title, suffix);
linkname_set = 1;
}
if (!linkname_set || !id_set) {
free(link);
return;
}
if (link->type == LINK_FILE) {
char *url = sonic_stream_link(link->sonic_id);
strncpy(link->f_url, url, MAX_PATH_LEN);
free(url);
}
LinkTable_add(linktbl, link);
}
LinkTable *sonic_LinkTable_new_id3(int depth, const char *id)
@ -501,13 +439,13 @@ LinkTable *sonic_LinkTable_new_id3(int depth, const char *id)
/* Album table - get all the albums of an artist */
case 3:
url = sonic_getArtist_link(id);
linktbl = sonic_url_to_LinkTable(url, XML_parser_id3, depth);
linktbl = sonic_url_to_LinkTable(url, XML_parser_general, depth);
free(url);
break;
/* Song table - get all the songs of an album */
case 4:
url = sonic_getAlbum_link(id);
linktbl = sonic_url_to_LinkTable(url, XML_parser_id3, depth);
linktbl = sonic_url_to_LinkTable(url, XML_parser_general, depth);
free(url);
break;
default: