comparison: src/PartDownloader.cc
src/PartDownloader.cc
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- d79083b9f74d
- parent 705
- 09150d027e8c
- parent 655
- b376645315ab
- child 707
- c89b58ba266b
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| 705:09150d027e8c | 706:d79083b9f74d |
|---|---|
| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2013, 2014 Santeri Piippo | |
| 4 * | |
| 5 * This program 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 * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 */ | |
| 18 | |
| 19 #include <QNetworkAccessManager> | |
| 20 #include <QNetworkRequest> | |
| 21 #include <QNetworkReply> | |
| 22 #include <QDir> | |
| 23 #include <QProgressBar> | |
| 24 #include <QPushButton> | |
| 25 #include "PartDownloader.h" | |
| 26 #include "ui_downloadfrom.h" | |
| 27 #include "Types.h" | |
| 28 #include "MainWindow.h" | |
| 29 #include "Document.h" | |
| 30 #include "GLRenderer.h" | |
| 31 #include "ConfigurationDialog.h" | |
| 32 | |
| 33 cfg (String, net_downloadpath, ""); | |
| 34 cfg (Bool, net_guesspaths, true); | |
| 35 cfg (Bool, net_autoclose, true); | |
| 36 | |
| 37 const QString g_unofficialLibraryURL ("http://ldraw.org/library/unofficial/"); | |
| 38 | |
| 39 // ============================================================================= | |
| 40 // | |
| 41 void PartDownloader::staticBegin() | |
| 42 { | |
| 43 QString path = getDownloadPath(); | |
| 44 | |
| 45 if (path == "" || QDir (path).exists() == false) | |
| 46 { | |
| 47 critical (PartDownloader::tr ("You need to specify a valid path for " | |
| 48 "downloaded files in the configuration to download paths.")); | |
| 49 | |
| 50 (new ConfigDialog (ConfigDialog::DownloadTab, null))->exec(); | |
| 51 return; | |
| 52 } | |
| 53 | |
| 54 PartDownloader* dlg = new PartDownloader; | |
| 55 dlg->exec(); | |
| 56 } | |
| 57 | |
| 58 // ============================================================================= | |
| 59 // | |
| 60 QString PartDownloader::getDownloadPath() | |
| 61 { | |
| 62 QString path = net_downloadpath; | |
| 63 | |
| 64 #if DIRSLASH_CHAR != '/' | |
| 65 path.replace (DIRSLASH, "/"); | |
| 66 #endif | |
| 67 | |
| 68 return path; | |
| 69 } | |
| 70 | |
| 71 // ============================================================================= | |
| 72 // | |
| 73 PartDownloader::PartDownloader (QWidget* parent) : QDialog (parent) | |
| 74 { | |
| 75 setInterface (new Ui_DownloadFrom); | |
| 76 interface()->setupUi (this); | |
| 77 interface()->fname->setFocus(); | |
| 78 interface()->progress->horizontalHeader()->setResizeMode (PartLabelColumn, QHeaderView::Stretch); | |
| 79 | |
| 80 setDownloadButton (new QPushButton (tr ("Download"))); | |
| 81 interface()->buttonBox->addButton (downloadButton(), QDialogButtonBox::ActionRole); | |
| 82 getButton (Abort)->setEnabled (false); | |
| 83 | |
| 84 connect (interface()->source, SIGNAL (currentIndexChanged (int)), | |
| 85 this, SLOT (sourceChanged (int))); | |
| 86 connect (interface()->buttonBox, SIGNAL (clicked (QAbstractButton*)), | |
| 87 this, SLOT (buttonClicked (QAbstractButton*))); | |
| 88 } | |
| 89 | |
| 90 // ============================================================================= | |
| 91 // | |
| 92 PartDownloader::~PartDownloader() | |
| 93 { | |
| 94 delete interface(); | |
| 95 } | |
| 96 | |
| 97 // ============================================================================= | |
| 98 // | |
| 99 QString PartDownloader::getURL() const | |
| 100 { | |
| 101 const Source src = getSource(); | |
| 102 QString dest; | |
| 103 | |
| 104 switch (src) | |
| 105 { | |
| 106 case PartsTracker: | |
| 107 dest = interface()->fname->text(); | |
| 108 modifyDestination (dest); | |
| 109 return g_unofficialLibraryURL + dest; | |
| 110 | |
| 111 case CustomURL: | |
| 112 return interface()->fname->text(); | |
| 113 } | |
| 114 | |
| 115 // Shouldn't happen | |
| 116 return ""; | |
| 117 } | |
| 118 | |
| 119 // ============================================================================= | |
| 120 // | |
| 121 void PartDownloader::modifyDestination (QString& dest) const | |
| 122 { | |
| 123 dest = dest.simplified(); | |
| 124 | |
| 125 // If the user doesn't want us to guess, stop right here. | |
| 126 if (net_guesspaths == false) | |
| 127 return; | |
| 128 | |
| 129 // Ensure .dat extension | |
| 130 if (dest.right (4) != ".dat") | |
| 131 { | |
| 132 // Remove the existing extension, if any. It may be we're here over a | |
| 133 // typo in the .dat extension. | |
| 134 const int dotpos = dest.lastIndexOf ("."); | |
| 135 | |
| 136 if (dotpos != -1 && dotpos >= dest.length() - 4) | |
| 137 dest.chop (dest.length() - dotpos); | |
| 138 | |
| 139 dest += ".dat"; | |
| 140 } | |
| 141 | |
| 142 // If the part starts with s\ or s/, then use parts/s/. Same goes with | |
| 143 // 48\ and p/48/. | |
| 144 if (dest.left (2) == "s\\" || dest.left (2) == "s/") | |
| 145 { | |
| 146 dest.remove (0, 2); | |
| 147 dest.prepend ("parts/s/"); | |
| 148 } elif (dest.left (3) == "48\\" || dest.left (3) == "48/") | |
| 149 { | |
| 150 dest.remove (0, 3); | |
| 151 dest.prepend ("p/48/"); | |
| 152 } | |
| 153 | |
| 154 /* Try determine where to put this part. We have four directories: | |
| 155 parts/, parts/s/, p/, and p/48/. If we haven't already specified | |
| 156 either parts/ or p/, we need to add it automatically. Part files | |
| 157 are numbers wit a possible u prefix for parts with unknown number | |
| 158 which can be followed by any of: | |
| 159 - c** (composites) | |
| 160 - d** (formed stickers) | |
| 161 - p** (patterns) | |
| 162 - a lowercase alphabetic letter for variants | |
| 163 | |
| 164 Subfiles (usually) have an s** prefix, in which case we use parts/s/. | |
| 165 Note that the regex starts with a '^' so it won't catch already fully | |
| 166 given part file names. */ | |
| 167 QString partRegex = "^u?[0-9]+(c[0-9][0-9]+)*(d[0-9][0-9]+)*[a-z]?(p[0-9a-z][0-9a-z]+)*"; | |
| 168 QString subpartRegex = partRegex + "s[0-9][0-9]+"; | |
| 169 | |
| 170 partRegex += "\\.dat$"; | |
| 171 subpartRegex += "\\.dat$"; | |
| 172 | |
| 173 if (QRegExp (subpartRegex).exactMatch (dest)) | |
| 174 dest.prepend ("parts/s/"); | |
| 175 elif (QRegExp (partRegex).exactMatch (dest)) | |
| 176 dest.prepend ("parts/"); | |
| 177 elif (dest.left (6) != "parts/" && dest.left (2) != "p/") | |
| 178 dest.prepend ("p/"); | |
| 179 } | |
| 180 | |
| 181 // ============================================================================= | |
| 182 // | |
| 183 PartDownloader::Source PartDownloader::getSource() const | |
| 184 { | |
| 185 return (Source) interface()->source->currentIndex(); | |
| 186 } | |
| 187 | |
| 188 // ============================================================================= | |
| 189 // | |
| 190 void PartDownloader::sourceChanged (int i) | |
| 191 { | |
| 192 if (i == CustomURL) | |
| 193 interface()->fileNameLabel->setText (tr ("URL:")); | |
| 194 else | |
| 195 interface()->fileNameLabel->setText (tr ("File name:")); | |
| 196 } | |
| 197 | |
| 198 // ============================================================================= | |
| 199 // | |
| 200 void PartDownloader::buttonClicked (QAbstractButton* btn) | |
| 201 { | |
| 202 if (btn == getButton (Close)) | |
| 203 { | |
| 204 reject(); | |
| 205 } | |
| 206 elif (btn == getButton (Abort)) | |
| 207 { | |
| 208 setAborted (true); | |
| 209 | |
| 210 for (PartDownloadRequest* req : requests()) | |
| 211 req->abort(); | |
| 212 } | |
| 213 elif (btn == getButton (Download)) | |
| 214 { | |
| 215 QString dest = interface()->fname->text(); | |
| 216 setPrimaryFile (null); | |
| 217 setAborted (false); | |
| 218 | |
| 219 if (getSource() == CustomURL) | |
| 220 dest = basename (getURL()); | |
| 221 | |
| 222 modifyDestination (dest); | |
| 223 | |
| 224 if (QFile::exists (PartDownloader::getDownloadPath() + DIRSLASH + dest)) | |
| 225 { | |
| 226 const QString overwritemsg = format (tr ("%1 already exists in download directory. Overwrite?"), dest); | |
| 227 if (!confirm (tr ("Overwrite?"), overwritemsg)) | |
| 228 return; | |
| 229 } | |
| 230 | |
| 231 downloadButton()->setEnabled (false); | |
| 232 interface()->progress->setEnabled (true); | |
| 233 interface()->fname->setEnabled (false); | |
| 234 interface()->source->setEnabled (false); | |
| 235 downloadFile (dest, getURL(), true); | |
| 236 getButton (Close)->setEnabled (false); | |
| 237 getButton (Abort)->setEnabled (true); | |
| 238 getButton (Download)->setEnabled (false); | |
| 239 } | |
| 240 } | |
| 241 | |
| 242 // ============================================================================= | |
| 243 // | |
| 244 void PartDownloader::downloadFile (QString dest, QString url, bool primary) | |
| 245 { | |
| 246 const int row = interface()->progress->rowCount(); | |
| 247 | |
| 248 // Don't download files repeadetly. | |
| 249 if (filesToDownload().indexOf (dest) != -1) | |
| 250 return; | |
| 251 | |
| 252 modifyDestination (dest); | |
| 253 PartDownloadRequest* req = new PartDownloadRequest (url, dest, primary, this); | |
| 254 m_filesToDownload << dest; | |
| 255 m_requests << req; | |
| 256 interface()->progress->insertRow (row); | |
| 257 req->setTableRow (row); | |
| 258 req->updateToTable(); | |
| 259 } | |
| 260 | |
| 261 // ============================================================================= | |
| 262 // | |
| 263 void PartDownloader::checkIfFinished() | |
| 264 { | |
| 265 bool failed = isAborted(); | |
| 266 | |
| 267 // If there is some download still working, we're not finished. | |
| 268 for (PartDownloadRequest* req : requests()) | |
| 269 { | |
| 270 if (!req->isFinished()) | |
| 271 return; | |
| 272 | |
| 273 if (req->state() == PartDownloadRequest::EFailed) | |
| 274 failed = true; | |
| 275 } | |
| 276 | |
| 277 for (PartDownloadRequest* req : requests()) | |
| 278 delete req; | |
| 279 | |
| 280 m_requests.clear(); | |
| 281 | |
| 282 // Update everything now | |
| 283 if (primaryFile() != null) | |
| 284 { | |
| 285 LDDocument::setCurrent (primaryFile()); | |
| 286 reloadAllSubfiles(); | |
| 287 g_win->doFullRefresh(); | |
| 288 g_win->R()->resetAngles(); | |
| 289 } | |
| 290 | |
| 291 if (net_autoclose && !failed) | |
| 292 { | |
| 293 // Close automatically if desired. | |
| 294 accept(); | |
| 295 } | |
| 296 else | |
| 297 { | |
| 298 // Allow the prompt be closed now. | |
| 299 getButton (Abort)->setEnabled (false); | |
| 300 getButton (Close)->setEnabled (true); | |
| 301 } | |
| 302 } | |
| 303 | |
| 304 // ============================================================================= | |
| 305 // | |
| 306 QPushButton* PartDownloader::getButton (PartDownloader::Button i) | |
| 307 { | |
| 308 switch (i) | |
| 309 { | |
| 310 case Download: | |
| 311 return downloadButton(); | |
| 312 | |
| 313 case Abort: | |
| 314 return qobject_cast<QPushButton*> (interface()->buttonBox->button (QDialogButtonBox::Abort)); | |
| 315 | |
| 316 case Close: | |
| 317 return qobject_cast<QPushButton*> (interface()->buttonBox->button (QDialogButtonBox::Close)); | |
| 318 } | |
| 319 | |
| 320 return null; | |
| 321 } | |
| 322 | |
| 323 // ============================================================================= | |
| 324 // | |
| 325 PartDownloadRequest::PartDownloadRequest (QString url, QString dest, bool primary, PartDownloader* parent) : | |
| 326 QObject (parent), | |
| 327 m_state (ERequesting), | |
| 328 m_prompt (parent), | |
| 329 m_url (url), | |
| 330 m_destinaton (dest), | |
| 331 m_filePath (PartDownloader::getDownloadPath() + DIRSLASH + dest), | |
| 332 m_networkManager (new QNetworkAccessManager), | |
| 333 m_isFirstUpdate (true), | |
| 334 m_isPrimary (primary), | |
| 335 m_filePointer (null) | |
| 336 { | |
| 337 // Make sure that we have a valid destination. | |
| 338 QString dirpath = dirname (filePath()); | |
| 339 | |
| 340 QDir dir (dirpath); | |
| 341 | |
| 342 if (dir.exists() == false) | |
| 343 { | |
| 344 print ("Creating %1...\n", dirpath); | |
| 345 | |
| 346 if (!dir.mkpath (dirpath)) | |
| 347 critical (format (tr ("Couldn't create the directory %1!"), dirpath)); | |
| 348 } | |
| 349 | |
| 350 setNetworkReply (networkManager()->get (QNetworkRequest (QUrl (url)))); | |
| 351 connect (networkReply(), SIGNAL (finished()), this, SLOT (downloadFinished())); | |
| 352 connect (networkReply(), SIGNAL (readyRead()), this, SLOT (readyRead())); | |
| 353 connect (networkReply(), SIGNAL (downloadProgress (qint64, qint64)), | |
| 354 this, SLOT (downloadProgress (qint64, qint64))); | |
| 355 } | |
| 356 | |
| 357 // ============================================================================= | |
| 358 // | |
| 359 PartDownloadRequest::~PartDownloadRequest() {} | |
| 360 | |
| 361 // ============================================================================= | |
| 362 // | |
| 363 void PartDownloadRequest::updateToTable() | |
| 364 { | |
| 365 const int labelcol = PartDownloader::PartLabelColumn, | |
| 366 progcol = PartDownloader::ProgressColumn; | |
| 367 QTableWidget* table = prompt()->interface()->progress; | |
| 368 QProgressBar* prog; | |
| 369 | |
| 370 switch (state()) | |
| 371 { | |
| 372 case ERequesting: | |
| 373 case EDownloading: | |
| 374 { | |
| 375 prog = qobject_cast<QProgressBar*> (table->cellWidget (tableRow(), progcol)); | |
| 376 | |
| 377 if (!prog) | |
| 378 { | |
| 379 prog = new QProgressBar; | |
| 380 table->setCellWidget (tableRow(), progcol, prog); | |
| 381 } | |
| 382 | |
| 383 prog->setRange (0, numBytesTotal()); | |
| 384 prog->setValue (numBytesRead()); | |
| 385 } break; | |
| 386 | |
| 387 case EFinished: | |
| 388 case EFailed: | |
| 389 { | |
| 390 const QString text = (state() == EFinished) | |
| 391 ? "<b><span style=\"color: #080\">FINISHED</span></b>" | |
| 392 : "<b><span style=\"color: #800\">FAILED</span></b>"; | |
| 393 | |
| 394 QLabel* lb = new QLabel (text); | |
| 395 lb->setAlignment (Qt::AlignCenter); | |
| 396 table->setCellWidget (tableRow(), progcol, lb); | |
| 397 } break; | |
| 398 } | |
| 399 | |
| 400 QLabel* lb = qobject_cast<QLabel*> (table->cellWidget (tableRow(), labelcol)); | |
| 401 | |
| 402 if (isFirstUpdate()) | |
| 403 { | |
| 404 lb = new QLabel (format ("<b>%1</b>", destinaton()), table); | |
| 405 table->setCellWidget (tableRow(), labelcol, lb); | |
| 406 } | |
| 407 | |
| 408 // Make sure that the cell is big enough to contain the label | |
| 409 if (table->columnWidth (labelcol) < lb->width()) | |
| 410 table->setColumnWidth (labelcol, lb->width()); | |
| 411 | |
| 412 setFirstUpdate (true); | |
| 413 } | |
| 414 | |
| 415 // ============================================================================= | |
| 416 // | |
| 417 void PartDownloadRequest::downloadFinished() | |
| 418 { | |
| 419 if (networkReply()->error() != QNetworkReply::NoError) | |
| 420 { | |
| 421 if (isPrimary() && !prompt()->isAborted()) | |
| 422 critical (networkReply()->errorString()); | |
| 423 | |
| 424 setState (EFailed); | |
| 425 } | |
| 426 elif (state() != EFailed) | |
| 427 setState (EFinished); | |
| 428 | |
| 429 setNumBytesRead (numBytesTotal()); | |
| 430 updateToTable(); | |
| 431 | |
| 432 if (filePointer()) | |
| 433 { | |
| 434 filePointer()->close(); | |
| 435 delete filePointer(); | |
| 436 setFilePointer (null); | |
| 437 | |
| 438 if (state() == EFailed) | |
| 439 QFile::remove (filePath()); | |
| 440 } | |
| 441 | |
| 442 if (state() != EFinished) | |
| 443 { | |
| 444 prompt()->checkIfFinished(); | |
| 445 return; | |
| 446 } | |
| 447 | |
| 448 // Try to load this file now. | |
| 449 LDDocument* f = openDocument (filePath(), false); | |
| 450 | |
| 451 if (!f) | |
| 452 return; | |
| 453 | |
| 454 f->setImplicit (!isPrimary()); | |
| 455 | |
| 456 // Iterate through this file and check for errors. If there's any that stems | |
| 457 // from unknown file references, try resolve that by downloading the reference. | |
| 458 // This is why downloading a part may end up downloading multiple files, as | |
| 459 // it resolves dependencies. | |
| 460 for (LDObject* obj : f->objects()) | |
| 461 { | |
| 462 LDError* err = dynamic_cast<LDError*> (obj); | |
| 463 | |
| 464 if (err == null || err->fileReferenced().isEmpty()) | |
| 465 continue; | |
| 466 | |
| 467 QString dest = err->fileReferenced(); | |
| 468 prompt()->modifyDestination (dest); | |
| 469 prompt()->downloadFile (dest, g_unofficialLibraryURL + dest, false); | |
| 470 } | |
| 471 | |
| 472 if (isPrimary()) | |
| 473 { | |
| 474 addRecentFile (filePath()); | |
| 475 prompt()->setPrimaryFile (f); | |
| 476 } | |
| 477 | |
| 478 prompt()->checkIfFinished(); | |
| 479 } | |
| 480 | |
| 481 // ============================================================================= | |
| 482 // | |
| 483 void PartDownloadRequest::downloadProgress (int64 recv, int64 total) | |
| 484 { | |
| 485 setNumBytesRead (recv); | |
| 486 setNumBytesTotal (total); | |
| 487 setState (EDownloading); | |
| 488 updateToTable(); | |
| 489 } | |
| 490 | |
| 491 // ============================================================================= | |
| 492 // | |
| 493 void PartDownloadRequest::readyRead() | |
| 494 { | |
| 495 if (state() == EFailed) | |
| 496 return; | |
| 497 | |
| 498 if (filePointer() == null) | |
| 499 { | |
| 500 m_filePath.replace ("\\", "/"); | |
| 501 | |
| 502 // We have already asked the user whether we can overwrite so we're good | |
| 503 // to go here. | |
| 504 setFilePointer (new QFile (filePath().toLocal8Bit())); | |
| 505 | |
| 506 if (!filePointer()->open (QIODevice::WriteOnly)) | |
| 507 { | |
| 508 critical (format (tr ("Couldn't open %1 for writing: %2"), filePath(), strerror (errno))); | |
| 509 setState (EFailed); | |
| 510 networkReply()->abort(); | |
| 511 updateToTable(); | |
| 512 prompt()->checkIfFinished(); | |
| 513 return; | |
| 514 } | |
| 515 } | |
| 516 | |
| 517 filePointer()->write (networkReply()->readAll()); | |
| 518 } | |
| 519 | |
| 520 // ============================================================================= | |
| 521 // | |
| 522 bool PartDownloadRequest::isFinished() const | |
| 523 { | |
| 524 return state() == EFinished || state() == EFailed; | |
| 525 } | |
| 526 | |
| 527 // ============================================================================= | |
| 528 // | |
| 529 void PartDownloadRequest::abort() | |
| 530 { | |
| 531 networkReply()->abort(); | |
| 532 } | |
| 533 | |
| 534 // ============================================================================= | |
| 535 // | |
| 536 DEFINE_ACTION (DownloadFrom, 0) | |
| 537 { | |
| 538 PartDownloader::staticBegin(); | |
| 539 } |
