WebCore/dom/DOMImplementation.cpp

   1 /*
   2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
   3  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
   4  *           (C) 2001 Dirk Mueller (mueller@kde.org)
   5  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
   6  * Copyright (C) 2006 Samuel Weinig (sam@webkit.org)
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Library General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Library General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Library General Public License
  19  * along with this library; see the file COPYING.LIB.  If not, write to
  20  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  21  * Boston, MA 02110-1301, USA.
  22  */
  23
  24 #include "config.h"
  25 #include "DOMImplementation.h"
  26
  27 #include "CSSStyleSheet.h"
  28 #include "DocumentType.h"
  29 #include "Element.h"
  30 #include "ExceptionCode.h"
  31 #include "Frame.h"
  32 #include "FTPDirectoryDocument.h"
  33 #include "HTMLDocument.h"
  34 #include "HTMLNames.h"
  35 #include "HTMLViewSourceDocument.h"
  36 #include "Image.h"
  37 #include "ImageDocument.h"
  38 #include "MediaDocument.h"
  39 #include "MediaList.h"
  40 #include "MediaPlayer.h"
  41 #include "MIMETypeRegistry.h"
  42 #include "Page.h"
  43 #include "PluginData.h"
  44 #include "PluginDocument.h"
  45 #include "RegularExpression.h"
  46 #include "Settings.h"
  47 #include "TextDocument.h"
  48 #include "XMLNames.h"
  49
  50 #if ENABLE(SVG)
  51 #include "SVGNames.h"
  52 #include "SVGDocument.h"
  53 #endif
  54
  55 namespace WebCore {
  56
  57 #if ENABLE(SVG)
  58
  59 static void addString(HashSet<String, CaseFoldingHash>& set, const char* string)
  60 {
  61     set.add(string);
  62 }
  63
  64 static bool isSVG10Feature(const String &feature)
  65 {
  66     static bool initialized = false;
  67     static HashSet<String, CaseFoldingHash> svgFeatures;
  68     if (!initialized) {
  69 #if ENABLE(SVG_USE) && ENABLE(SVG_FOREIGN_OBJECT) && ENABLE(SVG_FILTER) && ENABLE(SVG_FONTS)
  70         addString(svgFeatures, "svg");
  71         addString(svgFeatures, "svg.static");
  72 #endif
  73 //      addString(svgFeatures, "svg.animation");
  74 //      addString(svgFeatures, "svg.dynamic");
  75 //      addString(svgFeatures, "svg.dom.animation");
  76 //      addString(svgFeatures, "svg.dom.dynamic");
  77 #if ENABLE(SVG_USE) && ENABLE(SVG_FOREIGN_OBJECT) && ENABLE(SVG_FILTER) && ENABLE(SVG_FONTS)
  78         addString(svgFeatures, "dom");
  79         addString(svgFeatures, "dom.svg");
  80         addString(svgFeatures, "dom.svg.static");
  81 #endif
  82 //      addString(svgFeatures, "svg.all");
  83 //      addString(svgFeatures, "dom.svg.all");
  84         initialized = true;
  85     }
  86     return svgFeatures.contains(feature);
  87 }
  88
  89 static bool isSVG11Feature(const String &feature)
  90 {
  91     static bool initialized = false;
  92     static HashSet<String, CaseFoldingHash> svgFeatures;
  93     if (!initialized) {
  94         // Sadly, we cannot claim to implement any of the SVG 1.1 generic feature sets
  95         // lack of Font and Filter support.
  96         // http://bugs.webkit.org/show_bug.cgi?id=15480
  97 #if ENABLE(SVG_USE) && ENABLE(SVG_FOREIGN_OBJECT) && ENABLE(SVG_FILTER) && ENABLE(SVG_FONTS)
  98         addString(svgFeatures, "SVG");
  99         addString(svgFeatures, "SVGDOM");
 100         addString(svgFeatures, "SVG-static");
 101         addString(svgFeatures, "SVGDOM-static");
 102 #endif
 103 #if ENABLE(SVG_ANIMATION)
 104         addString(svgFeatures, "SVG-animation");
 105         addString(svgFeatures, "SVGDOM-animation");
 106 #endif
 107 //      addString(svgFeatures, "SVG-dynamic);
 108 //      addString(svgFeatures, "SVGDOM-dynamic);
 109         addString(svgFeatures, "CoreAttribute");
 110 #if ENABLE(SVG_USE)
 111         addString(svgFeatures, "Structure");
 112         addString(svgFeatures, "BasicStructure");
 113 #endif
 114         addString(svgFeatures, "ContainerAttribute");
 115         addString(svgFeatures, "ConditionalProcessing");
 116         addString(svgFeatures, "Image");
 117         addString(svgFeatures, "Style");
 118         addString(svgFeatures, "ViewportAttribute");
 119         addString(svgFeatures, "Shape");
 120 //      addString(svgFeatures, "Text"); // requires altGlyph, bug 6426
 121         addString(svgFeatures, "BasicText");
 122         addString(svgFeatures, "PaintAttribute");
 123         addString(svgFeatures, "BasicPaintAttribute");
 124         addString(svgFeatures, "OpacityAttribute");
 125         addString(svgFeatures, "GraphicsAttribute");
 126         addString(svgFeatures, "BaseGraphicsAttribute");
 127         addString(svgFeatures, "Marker");
 128 //      addString(svgFeatures, "ColorProfile"); // requires color-profile, bug 6037
 129         addString(svgFeatures, "Gradient");
 130         addString(svgFeatures, "Pattern");
 131         addString(svgFeatures, "Clip");
 132         addString(svgFeatures, "BasicClip");
 133         addString(svgFeatures, "Mask");
 134 #if ENABLE(SVG_FILTER)
 135 //      addString(svgFeatures, "Filter");
 136         addString(svgFeatures, "BasicFilter");
 137 #endif
 138         addString(svgFeatures, "DocumentEventsAttribute");
 139         addString(svgFeatures, "GraphicalEventsAttribute");
 140 //      addString(svgFeatures, "AnimationEventsAttribute");
 141         addString(svgFeatures, "Cursor");
 142         addString(svgFeatures, "Hyperlinking");
 143         addString(svgFeatures, "XlinkAttribute");
 144         addString(svgFeatures, "ExternalResourcesRequired");
 145 //      addString(svgFeatures, "View"); // buggy <view> support, bug 16962
 146         addString(svgFeatures, "Script");
 147 #if ENABLE(SVG_ANIMATION)
 148         addString(svgFeatures, "Animation");
 149 #endif
 150 #if ENABLE(SVG_FONTS)
 151         addString(svgFeatures, "Font");
 152         addString(svgFeatures, "BasicFont");
 153 #endif
 154 #if ENABLE(SVG_FOREIGN_OBJECT)
 155         addString(svgFeatures, "Extensibility");
 156 #endif
 157         initialized = true;
 158     }
 159     return svgFeatures.contains(feature);
 160 }
 161 #endif
 162
 163 bool DOMImplementation::hasFeature(const String& feature, const String& version)
 164 {
 165     String lower = feature.lower();
 166     if (lower == "core" || lower == "html" || lower == "xml" || lower == "xhtml")
 167         return version.isEmpty() || version == "1.0" || version == "2.0";
 168     if (lower == "css"
 169             || lower == "css2"
 170             || lower == "events"
 171             || lower == "htmlevents"
 172             || lower == "mouseevents"
 173             || lower == "mutationevents"
 174             || lower == "range"
 175             || lower == "stylesheets"
 176             || lower == "traversal"
 177             || lower == "uievents"
 178             || lower == "views")
 179         return version.isEmpty() || version == "2.0";
 180     if (lower == "xpath" || lower == "textevents")
 181         return version.isEmpty() || version == "3.0";
 182
 183 #if ENABLE(SVG)
 184     if ((version.isEmpty() || version == "1.1") && feature.startsWith("http://www.w3.org/tr/svg11/feature#", false)) {
 185         if (isSVG11Feature(feature.right(feature.length() - 35)))
 186             return true;
 187     }
 188
 189     if ((version.isEmpty() || version == "1.0") && feature.startsWith("org.w3c.", false)) {
 190         if (isSVG10Feature(feature.right(feature.length() - 8)))
 191             return true;
 192     }
 193 #endif
 194
 195     return false;
 196 }
 197
 198 PassRefPtr<DocumentType> DOMImplementation::createDocumentType(const String& qualifiedName,
 199     const String& publicId, const String& systemId, ExceptionCode& ec)
 200 {
 201     String prefix, localName;
 202     if (!Document::parseQualifiedName(qualifiedName, prefix, localName, ec))
 203         return 0;
 204
 205     return DocumentType::create(0, qualifiedName, publicId, systemId);
 206 }
 207
 208 DOMImplementation* DOMImplementation::getInterface(const String& /*feature*/)
 209 {
 210     return 0;
 211 }
 212
 213 PassRefPtr<Document> DOMImplementation::createDocument(const String& namespaceURI,
 214     const String& qualifiedName, DocumentType* doctype, ExceptionCode& ec)
 215 {
 216     // WRONG_DOCUMENT_ERR: Raised if doctype has already been used with a different document or was
 217     // created from a different implementation.
 218     bool shouldThrowWrongDocErr = false;
 219     if (doctype && doctype->document())
 220         shouldThrowWrongDocErr = true;
 221
 222     RefPtr<Document> doc;
 223 #if ENABLE(SVG)
 224     if (namespaceURI == SVGNames::svgNamespaceURI)
 225         doc = SVGDocument::create(0);
 226     else
 227 #endif
 228     if (namespaceURI == HTMLNames::xhtmlNamespaceURI)
 229         doc = Document::createXHTML(0);
 230     else
 231         doc = Document::create(0);
 232
 233     // now get the interesting parts of the doctype
 234     if (doctype)
 235         doc->addChild(doctype);
 236
 237     if (!qualifiedName.isEmpty()) {
 238         doc->addChild(doc->createElementNS(namespaceURI, qualifiedName, ec));
 239         if (ec != 0)
 240             return 0;
 241     }
 242
 243     // Hixie's interpretation of the DOM Core spec suggests we should prefer
 244     // other exceptions to WRONG_DOCUMENT_ERR (based on order mentioned in spec)
 245     if (shouldThrowWrongDocErr) {
 246         ec = WRONG_DOCUMENT_ERR;
 247         return 0;
 248     }
 249
 250     return doc.release();
 251 }
 252
 253 PassRefPtr<CSSStyleSheet> DOMImplementation::createCSSStyleSheet(const String&, const String& media, ExceptionCode&)
 254 {
 255     // FIXME: Title should be set.
 256     // FIXME: Media could have wrong syntax, in which case we should generate an exception.
 257     RefPtr<CSSStyleSheet> sheet = CSSStyleSheet::create();
 258     sheet->setMedia(MediaList::createAllowingDescriptionSyntax(sheet.get(), media));
 259     return sheet.release();
 260 }
 261
 262 PassRefPtr<Document> DOMImplementation::createDocument(Frame* frame)
 263 {
 264     return Document::create(frame);
 265 }
 266
 267 PassRefPtr<HTMLDocument> DOMImplementation::createHTMLDocument(Frame* frame)
 268 {
 269     return HTMLDocument::create(frame);
 270 }
 271
 272 bool DOMImplementation::isXMLMIMEType(const String& mimeType)
 273 {
 274     if (mimeType == "text/xml" || mimeType == "application/xml" || mimeType == "text/xsl")
 275         return true;
 276     static const char* validChars = "[0-9a-zA-Z_\\-+~!$\\^{}|.%'`#&*]"; // per RFCs: 3023, 2045
 277     static RegularExpression xmlTypeRegExp(String("^") + validChars + "+/" + validChars + "+\\+xml$");
 278     return xmlTypeRegExp.match(mimeType) > -1;
 279 }
 280
 281 bool DOMImplementation::isTextMIMEType(const String& mimeType)
 282 {
 283     if (MIMETypeRegistry::isSupportedJavaScriptMIMEType(mimeType) ||
 284         (mimeType.startsWith("text/") && mimeType != "text/html" &&
 285          mimeType != "text/xml" && mimeType != "text/xsl"))
 286         return true;
 287
 288     return false;
 289 }
 290
 291 PassRefPtr<HTMLDocument> DOMImplementation::createHTMLDocument(const String& title)
 292 {
 293     RefPtr<HTMLDocument> d = HTMLDocument::create(0);
 294     d->open();
 295     d->write("<!doctype html><html><head><title>" + title + "</title></head><body></body></html>");
 296     return d.release();
 297 }
 298
 299 PassRefPtr<Document> DOMImplementation::createDocument(const String& type, Frame* frame, bool inViewSourceMode)
 300 {
 301     if (inViewSourceMode) {
 302         if (type == "text/html" || type == "application/xhtml+xml" || type == "image/svg+xml" || isTextMIMEType(type) || isXMLMIMEType(type))
 303             return HTMLViewSourceDocument::create(frame, type);
 304     }
 305
 306     // Plugins cannot take HTML and XHTML from us, and we don't even need to initialize the plugin database for those.
 307     if (type == "text/html")
 308         return HTMLDocument::create(frame);
 309     if (type == "application/xhtml+xml")
 310         return Document::createXHTML(frame);
 311
 312 #if ENABLE(FTPDIR)
 313     // Plugins cannot take FTP from us either
 314     if (type == "application/x-ftp-directory")
 315         return FTPDirectoryDocument::create(frame);
 316 #endif
 317
 318     PluginData* pluginData = 0;
 319     if (frame && frame->page() && frame->page()->settings()->arePluginsEnabled())
 320         pluginData = frame->page()->pluginData();
 321
 322     // PDF is one image type for which a plugin can override built-in support.
 323     // We do not want QuickTime to take over all image types, obviously.
 324     if ((type == "application/pdf" || type == "text/pdf") && pluginData && pluginData->supportsMimeType(type))
 325         return PluginDocument::create(frame);
 326     if (Image::supportsType(type))
 327         return ImageDocument::create(frame);
 328
 329 #if ENABLE(VIDEO)
 330      // Check to see if the type can be played by our MediaPlayer, if so create a MediaDocument
 331      if (MediaPlayer::supportsType(type))
 332          return MediaDocument::create(frame);
 333 #endif
 334
 335     // Everything else except text/plain can be overridden by plugins. In particular, Adobe SVG Viewer should be used for SVG, if installed.
 336     // Disallowing plug-ins to use text/plain prevents plug-ins from hijacking a fundamental type that the browser is expected to handle,
 337     // and also serves as an optimization to prevent loading the plug-in database in the common case.
 338     if (type != "text/plain" && pluginData && pluginData->supportsMimeType(type))
 339         return PluginDocument::create(frame);
 340     if (isTextMIMEType(type))
 341         return TextDocument::create(frame);
 342
 343 #if ENABLE(SVG)
 344     if (type == "image/svg+xml") {
 345 #if ENABLE(DASHBOARD_SUPPORT)
 346         Settings* settings = frame ? frame->settings() : 0;
 347         if (!settings || !settings->usesDashboardBackwardCompatibilityMode())
 348 #endif
 349             return SVGDocument::create(frame);
 350     }
 351 #endif
 352     if (isXMLMIMEType(type))
 353         return Document::create(frame);
 354
 355     return HTMLDocument::create(frame);
 356 }
 357
 358 }