1 /*
2 * Strawberry Music Player
3 * Copyright 2018-2021, Jonas Kvinge <jonas@jkvinge.net>
4 *
5 * Strawberry is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 *
10 * Strawberry is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
17 *
18 */
19
20 #include "config.h"
21
22 #include <algorithm>
23
24 #include <QtGlobal>
25 #include <QObject>
26 #include <QPair>
27 #include <QSet>
28 #include <QList>
29 #include <QMap>
30 #include <QVariant>
31 #include <QByteArray>
32 #include <QString>
33 #include <QUrl>
34 #include <QUrlQuery>
35 #include <QNetworkRequest>
36 #include <QNetworkReply>
37 #include <QJsonDocument>
38 #include <QJsonValue>
39 #include <QJsonObject>
40 #include <QJsonArray>
41 #include <QtDebug>
42
43 #include "core/application.h"
44 #include "core/networkaccessmanager.h"
45 #include "core/logging.h"
46 #include "core/song.h"
47 #include "albumcoverfetcher.h"
48 #include "albumcoverfetchersearch.h"
49 #include "jsoncoverprovider.h"
50 #include "deezercoverprovider.h"
51
52 const char *DeezerCoverProvider::kApiUrl = "https://api.deezer.com";
53 const int DeezerCoverProvider::kLimit = 10;
54
DeezerCoverProvider(Application * app,NetworkAccessManager * network,QObject * parent)55 DeezerCoverProvider::DeezerCoverProvider(Application *app, NetworkAccessManager *network, QObject *parent)
56 : JsonCoverProvider("Deezer", true, false, 2.0, true, true, app, network, parent) {}
57
~DeezerCoverProvider()58 DeezerCoverProvider::~DeezerCoverProvider() {
59
60 while (!replies_.isEmpty()) {
61 QNetworkReply *reply = replies_.takeFirst();
62 QObject::disconnect(reply, nullptr, this, nullptr);
63 reply->abort();
64 reply->deleteLater();
65 }
66
67 }
68
StartSearch(const QString & artist,const QString & album,const QString & title,const int id)69 bool DeezerCoverProvider::StartSearch(const QString &artist, const QString &album, const QString &title, const int id) {
70
71 typedef QPair<QString, QString> Param;
72 typedef QList<Param> Params;
73
74 if (artist.isEmpty() && album.isEmpty() && title.isEmpty()) return false;
75
76 QString resource;
77 QString query = artist;
78 if (album.isEmpty() && !title.isEmpty()) {
79 resource = "search/track";
80 if (!query.isEmpty()) query.append(" ");
81 query.append(title);
82 }
83 else {
84 resource = "search/album";
85 if (!album.isEmpty()) {
86 if (!query.isEmpty()) query.append(" ");
87 query.append(album);
88 }
89 }
90
91 const Params params = Params() << Param("output", "json")
92 << Param("q", query)
93 << Param("limit", QString::number(kLimit));
94
95 QUrlQuery url_query;
96 for (const Param ¶m : params) {
97 url_query.addQueryItem(QUrl::toPercentEncoding(param.first), QUrl::toPercentEncoding(param.second));
98 }
99
100 QUrl url(kApiUrl + QString("/") + resource);
101 url.setQuery(url_query);
102 QNetworkRequest req(url);
103 #if QT_VERSION >= QT_VERSION_CHECK(5, 9, 0)
104 req.setAttribute(QNetworkRequest::RedirectPolicyAttribute, QNetworkRequest::NoLessSafeRedirectPolicy);
105 #else
106 req.setAttribute(QNetworkRequest::FollowRedirectsAttribute, true);
107 #endif
108 QNetworkReply *reply = network_->get(req);
109 replies_ << reply;
110 QObject::connect(reply, &QNetworkReply::finished, this, [this, reply, id]() { HandleSearchReply(reply, id); });
111
112 return true;
113
114 }
115
CancelSearch(const int id)116 void DeezerCoverProvider::CancelSearch(const int id) { Q_UNUSED(id); }
117
GetReplyData(QNetworkReply * reply)118 QByteArray DeezerCoverProvider::GetReplyData(QNetworkReply *reply) {
119
120 QByteArray data;
121
122 if (reply->error() == QNetworkReply::NoError && reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == 200) {
123 data = reply->readAll();
124 }
125 else {
126 if (reply->error() != QNetworkReply::NoError && reply->error() < 200) {
127 // This is a network error, there is nothing more to do.
128 QString error = QString("%1 (%2)").arg(reply->errorString()).arg(reply->error());
129 Error(error);
130 }
131 else {
132 // See if there is Json data containing "error" object - then use that instead.
133 data = reply->readAll();
134 QJsonParseError json_error;
135 QJsonDocument json_doc = QJsonDocument::fromJson(data, &json_error);
136 QString error;
137 if (json_error.error == QJsonParseError::NoError && !json_doc.isEmpty() && json_doc.isObject()) {
138 QJsonObject json_obj = json_doc.object();
139 if (json_obj.contains("error")) {
140 QJsonValue value_error = json_obj["error"];
141 if (value_error.isObject()) {
142 QJsonObject obj_error = value_error.toObject();
143 int code = obj_error["code"].toInt();
144 QString message = obj_error["message"].toString();
145 error = QString("%1 (%2)").arg(message).arg(code);
146 }
147 }
148 }
149 if (error.isEmpty()) {
150 if (reply->error() != QNetworkReply::NoError) {
151 error = QString("%1 (%2)").arg(reply->errorString()).arg(reply->error());
152 }
153 else {
154 error = QString("Received HTTP code %1").arg(reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt());
155 }
156 }
157 Error(error);
158 }
159 return QByteArray();
160 }
161
162 return data;
163
164 }
165
ExtractData(const QByteArray & data)166 QJsonValue DeezerCoverProvider::ExtractData(const QByteArray &data) {
167
168 QJsonObject json_obj = ExtractJsonObj(data);
169 if (json_obj.isEmpty()) return QJsonObject();
170
171 if (json_obj.contains("error")) {
172 QJsonValue value_error = json_obj["error"];
173 if (!value_error.isObject()) {
174 Error("Error missing object", json_obj);
175 return QJsonValue();
176 }
177 QJsonObject obj_error = value_error.toObject();
178 const int code = obj_error["code"].toInt();
179 QString message = obj_error["message"].toString();
180 Error(QString("%1 (%2)").arg(message).arg(code));
181 return QJsonValue();
182 }
183
184 if (!json_obj.contains("data") && !json_obj.contains("DATA")) {
185 Error("Json reply object is missing data.", json_obj);
186 return QJsonValue();
187 }
188
189 QJsonValue value_data;
190 if (json_obj.contains("data")) value_data = json_obj["data"];
191 else value_data = json_obj["DATA"];
192
193 return value_data;
194
195 }
196
HandleSearchReply(QNetworkReply * reply,const int id)197 void DeezerCoverProvider::HandleSearchReply(QNetworkReply *reply, const int id) {
198
199 if (!replies_.contains(reply)) return;
200 replies_.removeAll(reply);
201 QObject::disconnect(reply, nullptr, this, nullptr);
202 reply->deleteLater();
203
204 QByteArray data = GetReplyData(reply);
205 if (data.isEmpty()) {
206 emit SearchFinished(id, CoverProviderSearchResults());
207 return;
208 }
209
210 QJsonValue value_data = ExtractData(data);
211 if (!value_data.isArray()) {
212 emit SearchFinished(id, CoverProviderSearchResults());
213 return;
214 }
215
216 QJsonArray array_data = value_data.toArray();
217 if (array_data.isEmpty()) {
218 emit SearchFinished(id, CoverProviderSearchResults());
219 return;
220 }
221
222 QMap<QUrl, CoverProviderSearchResult> results;
223 int i = 0;
224 for (const QJsonValueRef json_value : array_data) {
225
226 if (!json_value.isObject()) {
227 Error("Invalid Json reply, data array value is not a object.");
228 continue;
229 }
230 QJsonObject json_obj = json_value.toObject();
231 QJsonObject obj_album;
232 if (json_obj.contains("album") && json_obj["album"].isObject()) { // Song search, so extract the album.
233 obj_album = json_obj["album"].toObject();
234 }
235 else {
236 obj_album = json_obj;
237 }
238
239 if (!json_obj.contains("id") || !obj_album.contains("id")) {
240 Error("Invalid Json reply, data array value object is missing ID.", json_obj);
241 continue;
242 }
243
244 if (!obj_album.contains("type")) {
245 Error("Invalid Json reply, data array value album object is missing type.", obj_album);
246 continue;
247 }
248 QString type = obj_album["type"].toString();
249 if (type != "album") {
250 Error("Invalid Json reply, data array value album object has incorrect type returned", obj_album);
251 continue;
252 }
253
254 if (!json_obj.contains("artist")) {
255 Error("Invalid Json reply, data array value object is missing artist.", json_obj);
256 continue;
257 }
258 QJsonValue value_artist = json_obj["artist"];
259 if (!value_artist.isObject()) {
260 Error("Invalid Json reply, data array value artist is not a object.", value_artist);
261 continue;
262 }
263 QJsonObject obj_artist = value_artist.toObject();
264
265 if (!obj_artist.contains("name")) {
266 Error("Invalid Json reply, data array value artist object is missing name.", obj_artist);
267 continue;
268 }
269 QString artist = obj_artist["name"].toString();
270
271 if (!obj_album.contains("title")) {
272 Error("Invalid Json reply, data array value album object is missing title.", obj_album);
273 continue;
274 }
275 QString album = obj_album["title"].toString();
276
277 album = album.remove(Song::kAlbumRemoveDisc);
278 album = album.remove(Song::kAlbumRemoveMisc);
279
280 CoverProviderSearchResult cover_result;
281 cover_result.artist = artist;
282 cover_result.album = album;
283
284 bool have_cover = false;
285 QList<QPair<QString, QSize>> cover_sizes = QList<QPair<QString, QSize>>() << qMakePair(QString("cover_xl"), QSize(1000, 1000))
286 << qMakePair(QString("cover_big"), QSize(500, 500));
287 for (const QPair<QString, QSize> &cover_size : cover_sizes) {
288 if (!obj_album.contains(cover_size.first)) continue;
289 QString cover = obj_album[cover_size.first].toString();
290 if (!have_cover) {
291 have_cover = true;
292 ++i;
293 }
294 QUrl url(cover);
295 if (!results.contains(url)) {
296 cover_result.image_url = url;
297 cover_result.image_size = cover_size.second;
298 cover_result.number = i;
299 results.insert(url, cover_result);
300 }
301 }
302
303 if (!have_cover) {
304 Error("Invalid Json reply, data array value album object is missing cover.", obj_album);
305 }
306
307 }
308
309 if (results.isEmpty()) {
310 emit SearchFinished(id, CoverProviderSearchResults());
311 }
312 else {
313 CoverProviderSearchResults cover_results = results.values();
314 std::stable_sort(cover_results.begin(), cover_results.end(), AlbumCoverFetcherSearch::CoverProviderSearchResultCompareNumber);
315 emit SearchFinished(id, cover_results);
316 }
317
318 }
319
Error(const QString & error,const QVariant & debug)320 void DeezerCoverProvider::Error(const QString &error, const QVariant &debug) {
321 qLog(Error) << "Deezer:" << error;
322 if (debug.isValid()) qLog(Debug) << debug;
323 }
324