Differential D11070 Diff 29886 plugins/htmlinterface/torrentlistgenerator.cpp

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plugins/htmlinterface/torrentlistgenerator.cpp

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17 * GNU General Public License for more details. * 17​ * GNU General Public License for more details. *
18 * * 18​ * *
19 * You should have received a copy of the GNU General Public License * 19​ * You should have received a copy of the GNU General Public License *
20 * along with this program; if not, write to the * 20​ * along with this program; if not, write to the *
21 * Free Software Foundation, Inc., * 21​ * Free Software Foundation, Inc., *
22 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * 22​ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
23 ***************************************************************************/ 23​ ***************************************************************************/
24 24​
25​#include <QChar>
25#include <QJsonDocument> 26​#include <QJsonDocument>
26#include <QJsonObject> 27​#include <QJsonObject>
27#include <QJsonArray> 28​#include <QJsonArray>
28#include <QJsonValue> 29​#include <QJsonValue>
29#include <QMap> 30​#include <QMap>
30#include <QString> 31​#include <QString>
31#include <iostream> 32​#include <iostream>
32 33​
33#include "torrentlistgenerator.h" 34​#include "torrentlistgenerator.h"
34#include <util/sha1hash.h> 35​#include <util/sha1hash.h>
35#include <torrent/queuemanager.h> 36​#include <torrent/queuemanager.h>
37​#include <torrent/magnetmanager.h>
36#include <interfaces/coreinterface.h> 38​#include <interfaces/coreinterface.h>
37 39​
38using namespace bt; 40​using namespace bt;
39using namespace std; 41​using namespace std;
40 42​
41namespace kt 43​namespace kt
42{ 44​{
43 45​
44 TorrentListGenerator::TorrentListGenerator(CoreInterface* core): core(core) 46​ TorrentListGenerator::TorrentListGenerator(CoreInterface* core): core(core)
45 { 47​ {
46 } 48​ }
47 49​
48 50​
49 TorrentListGenerator::~TorrentListGenerator() 51​ TorrentListGenerator::~TorrentListGenerator()
50 { 52​ {
51 } 53​ }
52 54​
53 55​
54 void TorrentListGenerator::get(char ** str_p, int * size) 56​ QByteArray TorrentListGenerator::get()
55 { 57​ {
56 kt::QueueManager* qman = core->getQueueManager(); 58​ kt::QueueManager* qman = core->getQueueManager();
pinoUnsubmitted
Not Done

QJsonArray array; is enough (also for other variables in this file).

pino: `QJsonArray array;` is enough (also for other variables in this file).
57 kt::QueueManager::iterator i = qman->begin(); 59​ kt::QueueManager::iterator i = qman->begin();
58 QJsonArray array = QJsonArray(); 60​ QJsonArray array;
59 while (i != qman->end()) 61​ while (i != qman->end())
60 { 62​ {
61 bt::TorrentInterface* ti = *i; 63​ bt::TorrentInterface* ti = *i;
62 const bt::TorrentStats& s = ti->getStats(); 64​ const bt::TorrentStats& s = ti->getStats();
63 65​
64 QJsonObject json = QJsonObject() ; 66​ QJsonObject json;
65 json.insert(QString::fromLocal8Bit("name"), ti->getDisplayName()); 67​ json.insert(QString::fromLatin1("name"), ti->getDisplayName());
66 json.insert(QString::fromLocal8Bit("infoHash"), ti->getInfoHash().toString()); 68​ json.insert(QString::fromLatin1("infoHash"), ti->getInfoHash().toString());
67 json.insert(QString::fromLocal8Bit("status"), s.status); 69​ json.insert(QString::fromLatin1("status"), s.status);
68 json.insert(QString::fromLocal8Bit("timeAdded"), s.time_added.toMSecsSinceEpoch()); 70​ json.insert(QString::fromLatin1("timeAdded"), s.time_added.toMSecsSinceEpoch());
69 json.insert(QString::fromLocal8Bit("bytesDownloaded"), (double) s.bytes_downloaded); 71​ json.insert(QString::fromLatin1("bytesDownloaded"), (double) s.bytes_downloaded);
70 json.insert(QString::fromLocal8Bit("bytesUploaded"), (double) s.bytes_uploaded); 72​ json.insert(QString::fromLatin1("bytesUploaded"), (double) s.bytes_uploaded);
71 json.insert(QString::fromLocal8Bit("totalBytes"), (double) s.total_bytes); 73​ json.insert(QString::fromLatin1("totalBytes"), (double) s.total_bytes);
72 json.insert(QString::fromLocal8Bit("totalBytesToDownload"), (double) s.total_bytes_to_download); 74​ json.insert(QString::fromLatin1("totalBytesToDownload"), (double) s.total_bytes_to_download);
73 json.insert(QString::fromLocal8Bit("downloadRate"), (double) s.download_rate); 75​ json.insert(QString::fromLatin1("downloadRate"), (double) s.download_rate);
74 json.insert(QString::fromLocal8Bit("uploadRate"), (double) s.upload_rate); 76​ json.insert(QString::fromLatin1("uploadRate"), (double) s.upload_rate);
75 json.insert(QString::fromLocal8Bit("numPeers"), (double) s.num_peers); 77​ json.insert(QString::fromLatin1("numPeers"), (double) s.num_peers);
76 json.insert(QString::fromLocal8Bit("seeders"), (double) s.seeders_connected_to); 78​ json.insert(QString::fromLatin1("seeders"), (double) s.seeders_connected_to);
77 json.insert(QString::fromLocal8Bit("seedersTotal"), (double) s.seeders_total); 79​ json.insert(QString::fromLatin1("seedersTotal"), (double) s.seeders_total);
78 json.insert(QString::fromLocal8Bit("leechers"), (double) s.leechers_connected_to); 80​ json.insert(QString::fromLatin1("leechers"), (double) s.leechers_connected_to);
79 json.insert(QString::fromLocal8Bit("leechersTotal"), (double) s.leechers_total); 81​ json.insert(QString::fromLatin1("leechersTotal"), (double) s.leechers_total);
80 json.insert(QString::fromLocal8Bit("running"), s.running); 82​ json.insert(QString::fromLatin1("running"), s.running);
81 json.insert(QString::fromLocal8Bit("numFiles"), (double) ti->getNumFiles()); 83​ json.insert(QString::fromLatin1("numFiles"), (double) ti->getNumFiles());
82 array.append(json); 84​ array.append(json);
83 i++; 85​ i++;
84 } 86​ }
85 QJsonObject message = QJsonObject(); 87​ QJsonObject message;
86 message.insert(QString::fromLocal8Bit("torrents"), array); 88​ message.insert(QString::fromLatin1("torrents"), array);
87 QJsonDocument doc = QJsonDocument(message); 89​ return QJsonDocument(message).toJson();
pinoUnsubmitted
Not Done

This converts the document to QByteArray twice.
Also, when the scope of this block ends, the data to which *str_p points to becomes a dangling pointer.
Why not just return the QByteArray?

pino: This converts the document to QByteArray twice. Also, when the scope of this block ends, the…
88 *str_p = doc.toJson().data(); ​
89 *size = doc.toJson().size(); ​
90 } 90​ }
91 91​
92 void TorrentListGenerator::post(char * json) { 92​ void TorrentListGenerator::post(QString json)
pinoUnsubmitted
Not Done

Since it does not modify its argument, make the json parameter of post as const char * (and remove the cast later on).

pino: Since it does not modify its argument, make the `json` parameter of `post` as `const char *`…
93 QJsonDocument doc = QJsonDocument::fromJson(QByteArray((const char *) json)); 93​ {
94​ QJsonDocument doc = QJsonDocument::fromJson(json.toLatin1());
94 QMap<QString, QVariant> qJson = doc.toVariant().toMap(); 95​ QMap<QString, QVariant> qJson = doc.toVariant().toMap();
95 96​
96 QString action = qJson[QString::fromLatin1("type")].toString(); 97​ QString action = qJson[QString::fromLatin1("type")].toString();
97 98​
pinoUnsubmitted
Not Done

An null QString is also empty, so just check for isEmpty (also in other places in this file).

pino: An null QString is also empty, so just check for `isEmpty` (also in other places in this file).
98 if (action.isEmpty() || action.isNull()) { 99​ if (action.isEmpty())
100​ {
99 return; 101​ return;
100 } 102​ }
101 103​
102 if (action == QString::fromLatin1("magnet")) { 104​ if (action == QString::fromLatin1("magnet"))
105​ {
103 QString magnet = qJson[QString::fromLatin1("magnet")].toString(); 106​ QString magnet = qJson[QString::fromLatin1("magnet")].toString();
104 if (magnet.isEmpty() || magnet.isNull()) { 107​ if (magnet.isEmpty())
108​ {
109​ return;
110​ }
111​ QUrl url = QUrl(magnet);
112​ if (!url.isValid())
113​ {
105 return; 114​ return;
106 } 115​ }
107 core->loadSilently(QUrl(magnet), QString()); 116​ core->loadSilently(url, QString());
108 return; 117​ return;
109 } 118​ }
110 119​
111 QString hash = qJson[QString::fromLatin1("hash")].toString(); 120​ QString hash = qJson[QString::fromLatin1("hash")].toString();
112 if (hash.isEmpty() || hash.isNull()) { 121​ if (hash.isEmpty())
122​ {
113 return; 123​ return;
114 } 124​ }
115 125​
116 TorrentInterface * ti = getTorrentFromHash(hash); 126​ TorrentInterface * ti = getTorrentFromHash(hash);
117 if (action == QString::fromLatin1("start")) { 127​ if (action == QString::fromLatin1("start"))
118 if (ti->getStats().paused) { 128​ {
129​ if (ti->getStats().paused)
pinoUnsubmitted
Not Done

Chain the various if's together, so not all the checks will be performed every time:

if (action == QLatin1String("start")) {
  ...
} else if (action == QLatin1String("pause")) {
  ...
} ...
pino: Chain the various if's together, so not all the checks will be performed every time: ```if…
130​ {
119 ti->unpause(); 131​ ti->unpause();
120 } else { 132​ }
133​ else
134​ {
121 ti->start(); 135​ ti->start();
122 } 136​ }
123 } 137​ }
124 if (action == QString::fromLatin1("pause")) { 138​ else if (action == QString::fromLatin1("stop"))
125 ti->pause(); 139​ {
140​ core->stop(ti);
pinoUnsubmitted
Not Done

hash is leaked. Just return it by value in QStringToSHA1Hash.

pino: `hash` is leaked. Just return it by value in `QStringToSHA1Hash`.
126 } 141​ }
127 if (action == QString::fromLatin1("remove")) { 142​ else if (action == QString::fromLatin1("remove"))
143​ {
128 core->remove(ti, false); 144​ core->remove(ti, false);
129 } 145​ }
130 } 146​ }
131 147​
132 const SHA1Hash * TorrentListGenerator::QStringToSHA1Hash(QString qString) { 148​ /**
133 Uint8 hashNum[20] = {}; 149​ * From: https://github.com/KDE/libktorrent/blob/master/src/dht/tests/keytest.cpp
134 hex2bin((const char *) qString.toLatin1().data(), hashNum); 150​ */
151​ static Uint8 HexCharToUint8(char c)
152​ {
153​ if (c >= 'a' && c <= 'f')
154​ return 10 + (c - 'a');
155​ else if (c >= 'A' && c <= 'F')
156​ return 10 + (c - 'A');
157​ else if (c >= '0' && c <= '9')
158​ return c - '0';
159​ else
160​ return 0;
161​ }
162​
163​ /**
164​ * Based on: https://github.com/KDE/libktorrent/blob/master/src/dht/tests/keytest.cpp
165​ */
166​ static Uint8 * HashFromHexString(QString & str)
167​ {
168​ bt::Uint8 * result = new Uint8[20];
169​ std::fill(result, result + 20, 0);
170​
171​ QString s = str.toLower();
172​ if (s.size() % 2 != 0)
173​ {
174​ s.prepend(QChar::fromLatin1('0'));
175​ }
176​
177​ int j = 19;
178​
179​ for (int i = s.size() - 1; i >= 0; i -= 2)
180​ {
181​ char left = s[i - 1].toLatin1();
pinoUnsubmitted
Not Done

Instead of shamelessly copying code from stackoverflow, use at least code already written in libktorrent: in src/dht/tests/keytest.cpp, see HexCharToUint8 (usable as-is) and KeyFromHexString (mostly similar).

pino: Instead of shamelessly copying code from stackoverflow, use at least code already written in…
182​ char right = s[i].toLatin1();
183​ result[j--] = (HexCharToUint8(left) << 4) | HexCharToUint8(right);
184​ }
185​ return result;
186​ }
187​
188​ static const SHA1Hash * QStringToSHA1Hash(QString qString) {
189​ Uint8 * hashNum = HashFromHexString(qString);
135 const SHA1Hash * hash = new SHA1Hash(hashNum); 190​ const SHA1Hash * hash = new SHA1Hash(hashNum);
191​ delete hashNum;
136 return hash; 192​ return hash;
137 } 193​ }
138 194​
139 TorrentInterface * TorrentListGenerator::getTorrentFromHash(QString qHash) { 195​ TorrentInterface * TorrentListGenerator::getTorrentFromHash(QString qHash)
196​ {
140 const SHA1Hash * hash = QStringToSHA1Hash(qHash); 197​ const SHA1Hash * hash = QStringToSHA1Hash(qHash);
141 kt::QueueManager* qman = core->getQueueManager(); 198​ kt::QueueManager* qman = core->getQueueManager();
142 kt::QueueManager::iterator i = qman->begin(); 199​ kt::QueueManager::iterator i = qman->begin();
143 while (i != qman->end()) 200​ while (i != qman->end())
144 { 201​ {
145 bt::TorrentInterface* ti = *i; 202​ bt::TorrentInterface* ti = *i;
146 const bt::TorrentStats& s = ti->getStats(); 203​ if (ti->getInfoHash() == *hash)
147 if (ti->getInfoHash() == *hash) { 204​ {
205​ delete hash;
148 return ti; 206​ return ti;
149 } 207​ }
150 i++; 208​ i++;
151 } 209​ }
210​ delete hash;
152 return NULL; 211​ return NULL;
153 } 212​ }
154 ​
155 /** ​
156 * Shameless ripped from: https://stackoverflow.com/a/17261928/313273 ​
157 */ ​
158 Uint8 TorrentListGenerator::char2int(char input) ​
159 { ​
160 if(input >= '0' && input <= '9') ​
161 return (Uint8) input - '0'; ​
162 if(input >= 'A' && input <= 'F') ​
163 return (Uint8) input - 'A' + 10; ​
164 if(input >= 'a' && input <= 'f') ​
165 return (Uint8) input - 'a' + 10; ​
166 throw std::invalid_argument("Invalid input string"); ​
167 } ​
168 ​
169 /** ​
170 * Shamelessly ripped from: https://stackoverflow.com/a/17261928/313273 ​
171 * This function assumes src to be a zero terminated sanitized string with ​
172 * an even number of [0-9a-f] characters, and target to be sufficiently large. ​
173 */ ​
174 void TorrentListGenerator::hex2bin(const char * src, Uint8 * target) ​
175 { ​
176 while(*src && src[1]) ​
177 { ​
178 *(target++) = char2int(*src) * 16 + char2int(src[1]); ​
179 src += 2; ​
180 } ​
181 } ​
182} 213​}