comparison: src/download.cpp
src/download.cpp
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- 04e140bdeb0b
- parent 556
- 5f4395ec5db0
- child 558
- 5f6e30e0450c
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| 556:5f4395ec5db0 | 557:04e140bdeb0b |
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| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2013 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 "download.h" | |
| 26 #include "ui_downloadfrom.h" | |
| 27 #include "types.h" | |
| 28 #include "gui.h" | |
| 29 #include "document.h" | |
| 30 #include "gldraw.h" | |
| 31 #include "configDialog.h" | |
| 32 #include "moc_download.cpp" | |
| 33 | |
| 34 cfg (String, net_downloadpath, ""); | |
| 35 cfg (Bool, net_guesspaths, true); | |
| 36 cfg (Bool, net_autoclose, true); | |
| 37 | |
| 38 const str g_unofficialLibraryURL ("http://ldraw.org/library/unofficial/"); | |
| 39 | |
| 40 // ============================================================================= | |
| 41 // ----------------------------------------------------------------------------- | |
| 42 void PartDownloader::staticBegin() | |
| 43 { str path = getDownloadPath(); | |
| 44 | |
| 45 if (path == "" || QDir (path).exists() == false) | |
| 46 { critical (PartDownloader::tr ("You need to specify a valid path for " | |
| 47 "downloaded files in the configuration to download paths.")); | |
| 48 | |
| 49 (new ConfigDialog (ConfigDialog::DownloadTab, null))->exec(); | |
| 50 return; | |
| 51 } | |
| 52 | |
| 53 PartDownloader* dlg = new PartDownloader; | |
| 54 dlg->exec(); | |
| 55 } | |
| 56 | |
| 57 // ============================================================================= | |
| 58 // ----------------------------------------------------------------------------- | |
| 59 str PartDownloader::getDownloadPath() | |
| 60 { str path = net_downloadpath; | |
| 61 | |
| 62 #if DIRSLASH_CHAR != '/' | |
| 63 path.replace (DIRSLASH, "/"); | |
| 64 #endif | |
| 65 | |
| 66 return path; | |
| 67 } | |
| 68 | |
| 69 // ============================================================================= | |
| 70 // ----------------------------------------------------------------------------- | |
| 71 PartDownloader::PartDownloader (QWidget* parent) : QDialog (parent) | |
| 72 { setInterface (new Ui_DownloadFrom); | |
| 73 getInterface()->setupUi (this); | |
| 74 getInterface()->fname->setFocus(); | |
| 75 getInterface()->progress->horizontalHeader()->setResizeMode (PartLabelColumn, QHeaderView::Stretch); | |
| 76 | |
| 77 setDownloadButton (new QPushButton (tr ("Download"))); | |
| 78 getInterface()->buttonBox->addButton (getDownloadButton(), QDialogButtonBox::ActionRole); | |
| 79 getButton (Abort)->setEnabled (false); | |
| 80 | |
| 81 connect (getInterface()->source, SIGNAL (currentIndexChanged (int)), | |
| 82 this, SLOT (sourceChanged (int))); | |
| 83 connect (getInterface()->buttonBox, SIGNAL (clicked (QAbstractButton*)), | |
| 84 this, SLOT (buttonClicked (QAbstractButton*))); | |
| 85 } | |
| 86 | |
| 87 // ============================================================================= | |
| 88 // ----------------------------------------------------------------------------- | |
| 89 PartDownloader::~PartDownloader() | |
| 90 { delete getInterface(); | |
| 91 } | |
| 92 | |
| 93 // ============================================================================= | |
| 94 // ----------------------------------------------------------------------------- | |
| 95 str PartDownloader::getURL() const | |
| 96 { const Source src = getSource(); | |
| 97 str dest; | |
| 98 | |
| 99 switch (src) | |
| 100 { case PartsTracker: | |
| 101 dest = getInterface()->fname->text(); | |
| 102 modifyDestination (dest); | |
| 103 return g_unofficialLibraryURL + dest; | |
| 104 | |
| 105 case CustomURL: | |
| 106 return getInterface()->fname->text(); | |
| 107 } | |
| 108 | |
| 109 // Shouldn't happen | |
| 110 return ""; | |
| 111 } | |
| 112 | |
| 113 // ============================================================================= | |
| 114 // ----------------------------------------------------------------------------- | |
| 115 void PartDownloader::modifyDestination (str& dest) const | |
| 116 { dest = dest.simplified(); | |
| 117 | |
| 118 // If the user doesn't want us to guess, stop right here. | |
| 119 if (net_guesspaths == false) | |
| 120 return; | |
| 121 | |
| 122 // Ensure .dat extension | |
| 123 if (dest.right (4) != ".dat") | |
| 124 { // Remove the existing extension, if any. It may be we're here over a | |
| 125 // typo in the .dat extension. | |
| 126 const int dotpos = dest.lastIndexOf ("."); | |
| 127 | |
| 128 if (dotpos != -1 && dotpos >= dest.length() - 4) | |
| 129 dest.chop (dest.length() - dotpos); | |
| 130 | |
| 131 dest += ".dat"; | |
| 132 } | |
| 133 | |
| 134 // If the part starts with s\ or s/, then use parts/s/. Same goes with | |
| 135 // 48\ and p/48/. | |
| 136 if (dest.left (2) == "s\\" || dest.left (2) == "s/") | |
| 137 { dest.remove (0, 2); | |
| 138 dest.prepend ("parts/s/"); | |
| 139 } elif (dest.left (3) == "48\\" || dest.left (3) == "48/") | |
| 140 { dest.remove (0, 3); | |
| 141 dest.prepend ("p/48/"); | |
| 142 } | |
| 143 | |
| 144 /* Try determine where to put this part. We have four directories: | |
| 145 parts/, parts/s/, p/, and p/48/. If we haven't already specified | |
| 146 either parts/ or p/, we need to add it automatically. Part files | |
| 147 are numbers wit a possible u prefix for parts with unknown number | |
| 148 which can be followed by any of: | |
| 149 - c** (composites) | |
| 150 - d** (formed stickers) | |
| 151 - p** (patterns) | |
| 152 - a lowercase alphabetic letter for variants | |
| 153 | |
| 154 Subfiles (usually) have an s** prefix, in which case we use parts/s/. | |
| 155 Note that the regex starts with a '^' so it won't catch already fully | |
| 156 given part file names. */ | |
| 157 str partRegex = "^u?[0-9]+(c[0-9][0-9]+)*(d[0-9][0-9]+)*[a-z]?(p[0-9a-z][0-9a-z]+)*"; | |
| 158 str subpartRegex = partRegex + "s[0-9][0-9]+"; | |
| 159 | |
| 160 partRegex += "\\.dat$"; | |
| 161 subpartRegex += "\\.dat$"; | |
| 162 | |
| 163 if (QRegExp (subpartRegex).exactMatch (dest)) | |
| 164 dest.prepend ("parts/s/"); | |
| 165 elif (QRegExp (partRegex).exactMatch (dest)) | |
| 166 dest.prepend ("parts/"); | |
| 167 elif (dest.left (6) != "parts/" && dest.left (2) != "p/") | |
| 168 dest.prepend ("p/"); | |
| 169 } | |
| 170 | |
| 171 // ============================================================================= | |
| 172 // ----------------------------------------------------------------------------- | |
| 173 PartDownloader::Source PartDownloader::getSource() const | |
| 174 { return (Source) getInterface()->source->currentIndex(); | |
| 175 } | |
| 176 | |
| 177 // ============================================================================= | |
| 178 // ----------------------------------------------------------------------------- | |
| 179 void PartDownloader::sourceChanged (int i) | |
| 180 { if (i == CustomURL) | |
| 181 getInterface()->fileNameLabel->setText (tr ("URL:")); | |
| 182 else | |
| 183 getInterface()->fileNameLabel->setText (tr ("File name:")); | |
| 184 } | |
| 185 | |
| 186 // ============================================================================= | |
| 187 // ----------------------------------------------------------------------------- | |
| 188 void PartDownloader::buttonClicked (QAbstractButton* btn) | |
| 189 { if (btn == getButton (Close)) | |
| 190 { reject(); | |
| 191 } | |
| 192 elif (btn == getButton (Abort)) | |
| 193 { setAborted (true); | |
| 194 | |
| 195 for (PartDownloadRequest* req : getRequests()) | |
| 196 req->abort(); | |
| 197 } | |
| 198 elif (btn == getButton (Download)) | |
| 199 { str dest = getInterface()->fname->text(); | |
| 200 setPrimaryFile (null); | |
| 201 setAborted (false); | |
| 202 | |
| 203 if (getSource() == CustomURL) | |
| 204 dest = basename (getURL()); | |
| 205 | |
| 206 modifyDestination (dest); | |
| 207 | |
| 208 if (QFile::exists (PartDownloader::getDownloadPath() + DIRSLASH + dest)) | |
| 209 { const str overwritemsg = fmt (tr ("%1 already exists in download directory. Overwrite?"), dest); | |
| 210 if (!confirm (tr ("Overwrite?"), overwritemsg)) | |
| 211 return; | |
| 212 } | |
| 213 | |
| 214 getDownloadButton()->setEnabled (false); | |
| 215 getInterface()->progress->setEnabled (true); | |
| 216 getInterface()->fname->setEnabled (false); | |
| 217 getInterface()->source->setEnabled (false); | |
| 218 downloadFile (dest, getURL(), true); | |
| 219 getButton (Close)->setEnabled (false); | |
| 220 getButton (Abort)->setEnabled (true); | |
| 221 getButton (Download)->setEnabled (false); | |
| 222 } | |
| 223 } | |
| 224 | |
| 225 // ============================================================================= | |
| 226 // ----------------------------------------------------------------------------- | |
| 227 void PartDownloader::downloadFile (str dest, str url, bool primary) | |
| 228 { const int row = getInterface()->progress->rowCount(); | |
| 229 | |
| 230 // Don't download files repeadetly. | |
| 231 if (getFilesToDownload().indexOf (dest) != -1) | |
| 232 return; | |
| 233 | |
| 234 modifyDestination (dest); | |
| 235 log ("DOWNLOAD: %1 -> %2\n", url, PartDownloader::getDownloadPath() + DIRSLASH + dest); | |
| 236 PartDownloadRequest* req = new PartDownloadRequest (url, dest, primary, this); | |
| 237 | |
| 238 pushToFilesToDownload (dest); | |
| 239 pushToRequests (req); | |
| 240 getInterface()->progress->insertRow (row); | |
| 241 req->setTableRow (row); | |
| 242 req->updateToTable(); | |
| 243 } | |
| 244 | |
| 245 // ============================================================================= | |
| 246 // ----------------------------------------------------------------------------- | |
| 247 void PartDownloader::checkIfFinished() | |
| 248 { bool failed = isAborted(); | |
| 249 | |
| 250 // If there is some download still working, we're not finished. | |
| 251 for (PartDownloadRequest* req : getRequests()) | |
| 252 { if (!req->isFinished()) | |
| 253 return; | |
| 254 | |
| 255 if (req->getState() == PartDownloadRequest::EFailed) | |
| 256 failed = true; | |
| 257 } | |
| 258 | |
| 259 for (PartDownloadRequest* req : getRequests()) | |
| 260 delete req; | |
| 261 | |
| 262 clearRequests(); | |
| 263 | |
| 264 // Update everything now | |
| 265 if (getPrimaryFile()) | |
| 266 { LDDocument::setCurrent (getPrimaryFile()); | |
| 267 reloadAllSubfiles(); | |
| 268 g_win->doFullRefresh(); | |
| 269 g_win->R()->resetAngles(); | |
| 270 } | |
| 271 | |
| 272 if (net_autoclose && !failed) | |
| 273 { // Close automatically if desired. | |
| 274 accept(); | |
| 275 } | |
| 276 else | |
| 277 { // Allow the prompt be closed now. | |
| 278 getButton (Abort)->setEnabled (false); | |
| 279 getButton (Close)->setEnabled (true); | |
| 280 } | |
| 281 } | |
| 282 | |
| 283 // ============================================================================= | |
| 284 // ----------------------------------------------------------------------------- | |
| 285 QPushButton* PartDownloader::getButton (PartDownloader::Button i) | |
| 286 { switch (i) | |
| 287 { case Download: | |
| 288 return getDownloadButton(); | |
| 289 | |
| 290 case Abort: | |
| 291 return qobject_cast<QPushButton*> (getInterface()->buttonBox->button (QDialogButtonBox::Abort)); | |
| 292 | |
| 293 case Close: | |
| 294 return qobject_cast<QPushButton*> (getInterface()->buttonBox->button (QDialogButtonBox::Close)); | |
| 295 } | |
| 296 | |
| 297 return null; | |
| 298 } | |
| 299 | |
| 300 // ============================================================================= | |
| 301 // ----------------------------------------------------------------------------- | |
| 302 PartDownloadRequest::PartDownloadRequest (str url, str dest, bool primary, PartDownloader* parent) : | |
| 303 QObject (parent), | |
| 304 m_State (ERequesting), | |
| 305 m_Prompt (parent), | |
| 306 m_URL (url), | |
| 307 m_Destinaton (dest), | |
| 308 m_FilePath (PartDownloader::getDownloadPath() + DIRSLASH + dest), | |
| 309 m_NAM (new QNetworkAccessManager), | |
| 310 m_FirstUpdate (true), | |
| 311 m_Primary (primary), | |
| 312 m_FilePointer (null) | |
| 313 { | |
| 314 // Make sure that we have a valid destination. | |
| 315 str dirpath = dirname (getFilePath()); | |
| 316 | |
| 317 QDir dir (dirpath); | |
| 318 | |
| 319 if (!dir.exists()) | |
| 320 { log ("Creating %1...\n", dirpath); | |
| 321 | |
| 322 if (!dir.mkpath (dirpath)) | |
| 323 critical (fmt (tr ("Couldn't create the directory %1!"), dirpath)); | |
| 324 } | |
| 325 | |
| 326 setReply (getNAM()->get (QNetworkRequest (QUrl (url)))); | |
| 327 connect (getReply(), SIGNAL (finished()), this, SLOT (downloadFinished())); | |
| 328 connect (getReply(), SIGNAL (readyRead()), this, SLOT (readyRead())); | |
| 329 connect (getReply(), SIGNAL (downloadProgress (qint64, qint64)), | |
| 330 this, SLOT (downloadProgress (qint64, qint64))); | |
| 331 } | |
| 332 | |
| 333 // ============================================================================= | |
| 334 // ----------------------------------------------------------------------------- | |
| 335 PartDownloadRequest::~PartDownloadRequest() {} | |
| 336 | |
| 337 // ============================================================================= | |
| 338 // ----------------------------------------------------------------------------- | |
| 339 void PartDownloadRequest::updateToTable() | |
| 340 { const int labelcol = PartDownloader::PartLabelColumn, | |
| 341 progcol = PartDownloader::ProgressColumn; | |
| 342 QTableWidget* table = getPrompt()->getInterface()->progress; | |
| 343 QProgressBar* prog; | |
| 344 | |
| 345 switch (getState()) | |
| 346 { case ERequesting: | |
| 347 case EDownloading: | |
| 348 { prog = qobject_cast<QProgressBar*> (table->cellWidget (getTableRow(), progcol)); | |
| 349 | |
| 350 if (!prog) | |
| 351 { prog = new QProgressBar; | |
| 352 table->setCellWidget (getTableRow(), progcol, prog); | |
| 353 } | |
| 354 | |
| 355 prog->setRange (0, getBytesTotal()); | |
| 356 prog->setValue (getBytesRead()); | |
| 357 } break; | |
| 358 | |
| 359 case EFinished: | |
| 360 case EFailed: | |
| 361 { const str text = (getState() == EFinished) | |
| 362 ? "<b><span style=\"color: #080\">FINISHED</span></b>" | |
| 363 : "<b><span style=\"color: #800\">FAILED</span></b>"; | |
| 364 | |
| 365 QLabel* lb = new QLabel (text); | |
| 366 lb->setAlignment (Qt::AlignCenter); | |
| 367 table->setCellWidget (getTableRow(), progcol, lb); | |
| 368 } break; | |
| 369 } | |
| 370 | |
| 371 QLabel* lb = qobject_cast<QLabel*> (table->cellWidget (getTableRow(), labelcol)); | |
| 372 | |
| 373 if (isFirstUpdate()) | |
| 374 { lb = new QLabel (fmt ("<b>%1</b>", getDestinaton()), table); | |
| 375 table->setCellWidget (getTableRow(), labelcol, lb); | |
| 376 } | |
| 377 | |
| 378 // Make sure that the cell is big enough to contain the label | |
| 379 if (table->columnWidth (labelcol) < lb->width()) | |
| 380 table->setColumnWidth (labelcol, lb->width()); | |
| 381 | |
| 382 setFirstUpdate (true); | |
| 383 } | |
| 384 | |
| 385 // ============================================================================= | |
| 386 // ----------------------------------------------------------------------------- | |
| 387 void PartDownloadRequest::downloadFinished() | |
| 388 { if (getReply()->error() != QNetworkReply::NoError) | |
| 389 { if (isPrimary() && !getPrompt()->isAborted()) | |
| 390 critical (getReply()->errorString()); | |
| 391 | |
| 392 setState (EFailed); | |
| 393 } | |
| 394 elif (getState() != EFailed) | |
| 395 setState (EFinished); | |
| 396 | |
| 397 setBytesRead (getBytesTotal()); | |
| 398 updateToTable(); | |
| 399 | |
| 400 if (getFilePointer()) | |
| 401 { getFilePointer()->close(); | |
| 402 delete getFilePointer(); | |
| 403 setFilePointer (null); | |
| 404 | |
| 405 if (getState() == EFailed) | |
| 406 QFile::remove (getFilePath()); | |
| 407 } | |
| 408 | |
| 409 if (getState() != EFinished) | |
| 410 { getPrompt()->checkIfFinished(); | |
| 411 return; | |
| 412 } | |
| 413 | |
| 414 // Try to load this file now. | |
| 415 LDDocument* f = openDocument (getFilePath(), false); | |
| 416 | |
| 417 if (!f) | |
| 418 return; | |
| 419 | |
| 420 f->setImplicit (!isPrimary()); | |
| 421 | |
| 422 // Iterate through this file and check for errors. If there's any that stems | |
| 423 // from unknown file references, try resolve that by downloading the reference. | |
| 424 // This is why downloading a part may end up downloading multiple files, as | |
| 425 // it resolves dependencies. | |
| 426 for (LDObject* obj : f->getObjects()) | |
| 427 { LDError* err = dynamic_cast<LDError*> (obj); | |
| 428 | |
| 429 if (!err || err->getFileReferenced().isEmpty()) | |
| 430 continue; | |
| 431 | |
| 432 str dest = err->getFileReferenced(); | |
| 433 getPrompt()->modifyDestination (dest); | |
| 434 getPrompt()->downloadFile (dest, g_unofficialLibraryURL + dest, false); | |
| 435 } | |
| 436 | |
| 437 if (isPrimary()) | |
| 438 { addRecentFile (getFilePath()); | |
| 439 getPrompt()->setPrimaryFile (f); | |
| 440 } | |
| 441 | |
| 442 getPrompt()->checkIfFinished(); | |
| 443 } | |
| 444 | |
| 445 // ============================================================================= | |
| 446 // ----------------------------------------------------------------------------- | |
| 447 void PartDownloadRequest::downloadProgress (int64 recv, int64 total) | |
| 448 { setBytesRead (recv); | |
| 449 setBytesTotal (total); | |
| 450 setState (EDownloading); | |
| 451 updateToTable(); | |
| 452 } | |
| 453 | |
| 454 // ============================================================================= | |
| 455 // ----------------------------------------------------------------------------- | |
| 456 void PartDownloadRequest::readyRead() | |
| 457 { if (getState() == EFailed) | |
| 458 return; | |
| 459 | |
| 460 if (getFilePointer() == null) | |
| 461 { replaceInFilePath ("\\", "/"); | |
| 462 | |
| 463 // We have already asked the user whether we can overwrite so we're good | |
| 464 // to go here. | |
| 465 setFilePointer (new QFile (getFilePath().toLocal8Bit())); | |
| 466 | |
| 467 if (!getFilePointer()->open (QIODevice::WriteOnly)) | |
| 468 { critical (fmt (tr ("Couldn't open %1 for writing: %2"), getFilePath(), strerror (errno))); | |
| 469 setState (EFailed); | |
| 470 getReply()->abort(); | |
| 471 updateToTable(); | |
| 472 getPrompt()->checkIfFinished(); | |
| 473 return; | |
| 474 } | |
| 475 } | |
| 476 | |
| 477 getFilePointer()->write (getReply()->readAll()); | |
| 478 } | |
| 479 | |
| 480 // ============================================================================= | |
| 481 // ----------------------------------------------------------------------------- | |
| 482 bool PartDownloadRequest::isFinished() const | |
| 483 { return getState() == EFinished || getState() == EFailed; | |
| 484 } | |
| 485 | |
| 486 // ============================================================================= | |
| 487 // ----------------------------------------------------------------------------- | |
| 488 void PartDownloadRequest::abort() | |
| 489 { getReply()->abort(); | |
| 490 } | |
| 491 | |
| 492 // ============================================================================= | |
| 493 // ----------------------------------------------------------------------------- | |
| 494 DEFINE_ACTION (DownloadFrom, 0) | |
| 495 { PartDownloader::staticBegin(); | |
| 496 } |
