1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*
* Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "PlsPlaylistPlugin.hxx"
#include "PlaylistPlugin.hxx"
#include "MemorySongEnumerator.hxx"
#include "InputStream.hxx"
#include "Song.hxx"
#include "tag/Tag.hxx"
#include "util/Error.hxx"
#include "util/Domain.hxx"
#include "Log.hxx"
#include <glib.h>
#include <string>
static constexpr Domain pls_domain("pls");
static void
pls_parser(GKeyFile *keyfile, std::forward_list<SongPointer> &songs)
{
gchar *value;
int length;
GError *error = nullptr;
int num_entries = g_key_file_get_integer(keyfile, "playlist",
"NumberOfEntries", &error);
if (error) {
FormatError(pls_domain,
"Invalid PLS file: '%s'", error->message);
g_error_free(error);
error = nullptr;
/* Hack to work around shoutcast failure to comform to spec */
num_entries = g_key_file_get_integer(keyfile, "playlist",
"numberofentries", &error);
if (error) {
g_error_free(error);
error = nullptr;
}
}
while (num_entries > 0) {
Song *song;
char key[64];
sprintf(key, "File%u", num_entries);
value = g_key_file_get_string(keyfile, "playlist", key,
&error);
if(error) {
FormatError(pls_domain, "Invalid PLS entry %s: '%s'",
key, error->message);
g_error_free(error);
g_free(key);
return;
}
song = Song::NewRemote(value);
g_free(value);
sprintf(key, "Title%u", num_entries);
value = g_key_file_get_string(keyfile, "playlist", key,
&error);
if(error == nullptr && value){
if (song->tag == nullptr)
song->tag = new Tag();
song->tag->AddItem(TAG_TITLE, value);
}
/* Ignore errors? Most likely value not present */
if(error) g_error_free(error);
error = nullptr;
g_free(value);
sprintf(key, "Length%u", num_entries);
length = g_key_file_get_integer(keyfile, "playlist", key,
&error);
if(error == nullptr && length > 0){
if (song->tag == nullptr)
song->tag = new Tag();
song->tag->time = length;
}
/* Ignore errors? Most likely value not present */
if(error) g_error_free(error);
error = nullptr;
songs.emplace_front(song);
num_entries--;
}
}
static SongEnumerator *
pls_open_stream(InputStream &is)
{
GError *error = nullptr;
Error error2;
size_t nbytes;
char buffer[1024];
bool success;
GKeyFile *keyfile;
std::string kf_data;
do {
nbytes = is.LockRead(buffer, sizeof(buffer), error2);
if (nbytes == 0) {
if (error2.IsDefined()) {
LogError(error2);
return nullptr;
}
break;
}
kf_data.append(buffer, nbytes);
/* Limit to 64k */
} while (kf_data.length() < 65536);
if (kf_data.empty()) {
LogWarning(pls_domain, "KeyFile parser failed: No Data");
return nullptr;
}
keyfile = g_key_file_new();
success = g_key_file_load_from_data(keyfile,
kf_data.data(), kf_data.length(),
G_KEY_FILE_NONE, &error);
if (!success) {
FormatError(pls_domain,
"KeyFile parser failed: %s", error->message);
g_error_free(error);
g_key_file_free(keyfile);
return nullptr;
}
std::forward_list<SongPointer> songs;
pls_parser(keyfile, songs);
g_key_file_free(keyfile);
return new MemorySongEnumerator(std::move(songs));
}
static const char *const pls_suffixes[] = {
"pls",
nullptr
};
static const char *const pls_mime_types[] = {
"audio/x-scpls",
nullptr
};
const struct playlist_plugin pls_playlist_plugin = {
"pls",
nullptr,
nullptr,
nullptr,
pls_open_stream,
nullptr,
pls_suffixes,
pls_mime_types,
};
|
