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  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)

     8  *

     9  * This library is free software; you can redistribute it and/or

    10  * modify it under the terms of the GNU Library General Public

    11  * License as published by the Free Software Foundation; either

    12  * version 2 of the License, or (at your option) any later version.

    13  *

    14  * This library is distributed in the hope that it will be useful,

    15  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    17  * Library General Public License for more details.

    18  *

    19  * You should have received a copy of the GNU Library General Public License

    20  * along with this library; see the file COPYING.LIB.  If not, write to

    21  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    22  * Boston, MA 02110-1301, USA.

    23  */

    24 

    25 #include "config.h"

    26 #include "DOMImplementation.h"

    27 

    28 #include "ContentType.h"

    29 #include "CSSStyleSheet.h"

    30 #include "DocumentType.h"

    31 #include "Element.h"

    32 #include "ExceptionCode.h"

    33 #include "Frame.h"

    34 #include "FrameLoaderClient.h"

    35 #include "FTPDirectoryDocument.h"

    36 #include "HTMLDocument.h"

    37 #include "HTMLNames.h"

    38 #include "HTMLViewSourceDocument.h"

    39 #include "Image.h"

    40 #include "ImageDocument.h"

    41 #include "MediaDocument.h"

    42 #include "MediaList.h"

    43 #include "MediaPlayer.h"

    44 #include "MIMETypeRegistry.h"

    45 #include "Page.h"

    46 #include "PluginData.h"

    47 #include "PluginDocument.h"

    48 #include "RegularExpression.h"

    49 #include "Settings.h"

    50 #include "TextDocument.h"

    51 #include "XMLNames.h"

    52 #include <wtf/StdLibExtras.h>

    53 

    54 #if ENABLE(SVG)

    55 #include "SVGNames.h"

    56 #include "SVGDocument.h"

    57 #endif

    58 

    59 #if ENABLE(WML)

    60 #include "WMLNames.h"

    61 #include "WMLDocument.h"

    62 #endif

    63 

    64 namespace WebCore {

    65 

    66 #if ENABLE(SVG)

    67 

    68 typedef HashSet<String, CaseFoldingHash> FeatureSet;

    69 

    70 static void addString(FeatureSet& set, const char* string)

    71 {

    72     set.add(string);

    73 }

    74 

    75 static bool isSVG10Feature(const String &feature)

    76 {

    77     static bool initialized = false;

    78     DEFINE_STATIC_LOCAL(FeatureSet, svgFeatures, ());

    79     if (!initialized) {

    80 #if ENABLE(SVG_USE) && ENABLE(SVG_FOREIGN_OBJECT) && ENABLE(FILTERS) && ENABLE(SVG_FONTS)

    81         addString(svgFeatures, "svg");

    82         addString(svgFeatures, "svg.static");

    83 #endif

    84 //      addString(svgFeatures, "svg.animation");

    85 //      addString(svgFeatures, "svg.dynamic");

    86 //      addString(svgFeatures, "svg.dom.animation");

    87 //      addString(svgFeatures, "svg.dom.dynamic");

    88 #if ENABLE(SVG_USE) && ENABLE(SVG_FOREIGN_OBJECT) && ENABLE(FILTERS) && ENABLE(SVG_FONTS)

    89         addString(svgFeatures, "dom");

    90         addString(svgFeatures, "dom.svg");

    91         addString(svgFeatures, "dom.svg.static");

    92 #endif

    93 //      addString(svgFeatures, "svg.all");

    94 //      addString(svgFeatures, "dom.svg.all");

    95         initialized = true;

    96     }

    97     return svgFeatures.contains(feature);

    98 }

    99 

   100 static bool isSVG11Feature(const String &feature)

   101 {

   102     static bool initialized = false;

   103     DEFINE_STATIC_LOCAL(FeatureSet, svgFeatures, ());

   104     if (!initialized) {

   105         // Sadly, we cannot claim to implement any of the SVG 1.1 generic feature sets

   106         // lack of Font and Filter support.

   107         // http://bugs.webkit.org/show_bug.cgi?id=15480

   108 #if ENABLE(SVG_USE) && ENABLE(SVG_FOREIGN_OBJECT) && ENABLE(FILTERS) && ENABLE(SVG_FONTS)

   109         addString(svgFeatures, "SVG");

   110         addString(svgFeatures, "SVGDOM");

   111         addString(svgFeatures, "SVG-static");

   112         addString(svgFeatures, "SVGDOM-static");

   113 #endif

   114 #if ENABLE(SVG_ANIMATION)

   115         addString(svgFeatures, "SVG-animation");

   116         addString(svgFeatures, "SVGDOM-animation");

   117 #endif

   118 //      addString(svgFeatures, "SVG-dynamic);

   119 //      addString(svgFeatures, "SVGDOM-dynamic);

   120         addString(svgFeatures, "CoreAttribute");

   121 #if ENABLE(SVG_USE)

   122         addString(svgFeatures, "Structure");

   123         addString(svgFeatures, "BasicStructure");

   124 #endif

   125         addString(svgFeatures, "ContainerAttribute");

   126         addString(svgFeatures, "ConditionalProcessing");

   127         addString(svgFeatures, "Image");

   128         addString(svgFeatures, "Style");

   129         addString(svgFeatures, "ViewportAttribute");

   130         addString(svgFeatures, "Shape");

   131 //      addString(svgFeatures, "Text"); // requires altGlyph, bug 6426

   132         addString(svgFeatures, "BasicText");

   133         addString(svgFeatures, "PaintAttribute");

   134         addString(svgFeatures, "BasicPaintAttribute");

   135         addString(svgFeatures, "OpacityAttribute");

   136         addString(svgFeatures, "GraphicsAttribute");

   137         addString(svgFeatures, "BaseGraphicsAttribute");

   138         addString(svgFeatures, "Marker");

   139 //      addString(svgFeatures, "ColorProfile"); // requires color-profile, bug 6037

   140         addString(svgFeatures, "Gradient");

   141         addString(svgFeatures, "Pattern");

   142         addString(svgFeatures, "Clip");

   143         addString(svgFeatures, "BasicClip");

   144         addString(svgFeatures, "Mask");

   145 #if ENABLE(FILTERS)

   146 //      addString(svgFeatures, "Filter");

   147         addString(svgFeatures, "BasicFilter");

   148 #endif

   149         addString(svgFeatures, "DocumentEventsAttribute");

   150         addString(svgFeatures, "GraphicalEventsAttribute");

   151 //      addString(svgFeatures, "AnimationEventsAttribute");

   152         addString(svgFeatures, "Cursor");

   153         addString(svgFeatures, "Hyperlinking");

   154         addString(svgFeatures, "XlinkAttribute");

   155         addString(svgFeatures, "ExternalResourcesRequired");

   156 //      addString(svgFeatures, "View"); // buggy <view> support, bug 16962

   157         addString(svgFeatures, "Script");

   158 #if ENABLE(SVG_ANIMATION)

   159         addString(svgFeatures, "Animation"); 

   160 #endif

   161 #if ENABLE(SVG_FONTS)

   162         addString(svgFeatures, "Font");

   163         addString(svgFeatures, "BasicFont");

   164 #endif

   165 #if ENABLE(SVG_FOREIGN_OBJECT)

   166         addString(svgFeatures, "Extensibility");

   167 #endif

   168         initialized = true;

   169     }

   170     return svgFeatures.contains(feature);

   171 }

   172 #endif

   173 

   174 bool DOMImplementation::hasFeature(const String& feature, const String& version)

   175 {

   176     String lower = feature.lower();

   177     if (lower == "core" || lower == "html" || lower == "xml" || lower == "xhtml")

   178         return version.isEmpty() || version == "1.0" || version == "2.0";

   179     if (lower == "css"

   180             || lower == "css2"

   181             || lower == "events"

   182             || lower == "htmlevents"

   183             || lower == "mouseevents"

   184             || lower == "mutationevents"

   185             || lower == "range"

   186             || lower == "stylesheets"

   187             || lower == "traversal"

   188             || lower == "uievents"

   189             || lower == "views")

   190         return version.isEmpty() || version == "2.0";

   191     if (lower == "xpath" || lower == "textevents")

   192         return version.isEmpty() || version == "3.0";

   193 

   194 #if ENABLE(SVG)

   195     if ((version.isEmpty() || version == "1.1") && feature.startsWith("http://www.w3.org/tr/svg11/feature#", false)) {

   196         if (isSVG11Feature(feature.right(feature.length() - 35)))

   197             return true;

   198     }

   199 

   200     if ((version.isEmpty() || version == "1.0") && feature.startsWith("org.w3c.", false)) {

   201         if (isSVG10Feature(feature.right(feature.length() - 8)))

   202             return true;

   203     }

   204 #endif

   205     

   206     return false;

   207 }

   208 

   209 PassRefPtr<DocumentType> DOMImplementation::createDocumentType(const String& qualifiedName,

   210     const String& publicId, const String& systemId, ExceptionCode& ec)

   211 {

   212     String prefix, localName;

   213     if (!Document::parseQualifiedName(qualifiedName, prefix, localName, ec))

   214         return 0;

   215 

   216     return DocumentType::create(0, qualifiedName, publicId, systemId);

   217 }

   218 

   219 DOMImplementation* DOMImplementation::getInterface(const String& /*feature*/)

   220 {

   221     return 0;

   222 }

   223 

   224 PassRefPtr<Document> DOMImplementation::createDocument(const String& namespaceURI,

   225     const String& qualifiedName, DocumentType* doctype, ExceptionCode& ec)

   226 {

   227     RefPtr<Document> doc;

   228 #if ENABLE(SVG)

   229     if (namespaceURI == SVGNames::svgNamespaceURI)

   230         doc = SVGDocument::create(0, KURL());

   231     else

   232 #endif

   233 #if ENABLE(WML)

   234     if (namespaceURI == WMLNames::wmlNamespaceURI)

   235         doc = WMLDocument::create(0, KURL());

   236     else

   237 #endif

   238     if (namespaceURI == HTMLNames::xhtmlNamespaceURI)

   239         doc = Document::createXHTML(0, KURL());

   240     else

   241         doc = Document::create(0, KURL());

   242 

   243     RefPtr<Node> documentElement;

   244     if (!qualifiedName.isEmpty()) {

   245         documentElement = doc->createElementNS(namespaceURI, qualifiedName, ec);

   246         if (ec)

   247             return 0;

   248     }

   249 

   250     // WRONG_DOCUMENT_ERR: Raised if doctype has already been used with a different document or was

   251     // created from a different implementation.

   252     // Hixie's interpretation of the DOM Core spec suggests we should prefer

   253     // other exceptions to WRONG_DOCUMENT_ERR (based on order mentioned in spec).

   254     if (doctype && doctype->document()) {

   255         ec = WRONG_DOCUMENT_ERR;

   256         return 0;

   257     }

   258 

   259     // FIXME: Shouldn't this call appendChild instead?

   260     if (doctype)

   261         doc->legacyParserAddChild(doctype);

   262     if (documentElement)

   263         doc->legacyParserAddChild(documentElement.release());

   264 

   265     return doc.release();

   266 }

   267 

   268 PassRefPtr<CSSStyleSheet> DOMImplementation::createCSSStyleSheet(const String&, const String& media, ExceptionCode&)

   269 {

   270     // FIXME: Title should be set.

   271     // FIXME: Media could have wrong syntax, in which case we should generate an exception.

   272     RefPtr<CSSStyleSheet> sheet = CSSStyleSheet::create();

   273     sheet->setMedia(MediaList::createAllowingDescriptionSyntax(sheet.get(), media));

   274     return sheet.release();

   275 }

   276 

   277 bool DOMImplementation::isXMLMIMEType(const String& mimeType)

   278 {

   279     if (mimeType == "text/xml" || mimeType == "application/xml" || mimeType == "text/xsl")

   280         return true;

   281     static const char* const validChars = "[0-9a-zA-Z_\\-+~!$\\^{}|.%'`#&*]"; // per RFCs: 3023, 2045

   282     DEFINE_STATIC_LOCAL(RegularExpression, xmlTypeRegExp, (String("^") + validChars + "+/" + validChars + "+\\+xml$", TextCaseSensitive));

   283     return xmlTypeRegExp.match(mimeType) > -1;

   284 }

   285 

   286 bool DOMImplementation::isTextMIMEType(const String& mimeType)

   287 {

   288     if (MIMETypeRegistry::isSupportedJavaScriptMIMEType(mimeType)

   289         || mimeType == "application/json" // Render JSON as text/plain.

   290         || (mimeType.startsWith("text/") && mimeType != "text/html"

   291             && mimeType != "text/xml" && mimeType != "text/xsl"))

   292         return true;

   293 

   294     return false;

   295 }

   296 

   297 PassRefPtr<HTMLDocument> DOMImplementation::createHTMLDocument(const String& title)

   298 {

   299     RefPtr<HTMLDocument> d = HTMLDocument::create(0, KURL());

   300     d->open();

   301     d->write("<!doctype html><html><body></body></html>");

   302     d->setTitle(title);

   303     return d.release();

   304 }

   305 

   306 PassRefPtr<Document> DOMImplementation::createDocument(const String& type, Frame* frame, const KURL& url, bool inViewSourceMode)

   307 {

   308     if (inViewSourceMode)

   309         return HTMLViewSourceDocument::create(frame, url, type);

   310 

   311     // Plugins cannot take HTML and XHTML from us, and we don't even need to initialize the plugin database for those.

   312     if (type == "text/html")

   313         return HTMLDocument::create(frame, url);

   314     if (type == "application/xhtml+xml"

   315 #if ENABLE(XHTMLMP)

   316         || type == "application/vnd.wap.xhtml+xml"

   317 #endif

   318         )

   319         return Document::createXHTML(frame, url);

   320 

   321 #if ENABLE(WML)

   322     if (type == "text/vnd.wap.wml" || type == "application/vnd.wap.wmlc")

   323         return WMLDocument::create(frame, url);

   324 #endif

   325 

   326 #if ENABLE(FTPDIR)

   327     // Plugins cannot take FTP from us either

   328     if (type == "application/x-ftp-directory")

   329         return FTPDirectoryDocument::create(frame, url);

   330 #endif

   331 

   332     PluginData* pluginData = 0;

   333     if (frame && frame->page() && frame->loader()->subframeLoader()->allowPlugins(NotAboutToInstantiatePlugin))

   334         pluginData = frame->page()->pluginData();

   335 

   336     // PDF is one image type for which a plugin can override built-in support.

   337     // We do not want QuickTime to take over all image types, obviously.

   338     if ((type == "application/pdf" || type == "text/pdf") && pluginData && pluginData->supportsMimeType(type))

   339         return PluginDocument::create(frame, url);

   340     if (Image::supportsType(type))

   341         return ImageDocument::create(frame, url);

   342 

   343 #if ENABLE(VIDEO)

   344      // Check to see if the type can be played by our MediaPlayer, if so create a MediaDocument

   345      if (MediaPlayer::supportsType(ContentType(type)))

   346          return MediaDocument::create(frame, url);

   347 #endif

   348 

   349     // Everything else except text/plain can be overridden by plugins. In particular, Adobe SVG Viewer should be used for SVG, if installed.

   350     // Disallowing plug-ins to use text/plain prevents plug-ins from hijacking a fundamental type that the browser is expected to handle,

   351     // and also serves as an optimization to prevent loading the plug-in database in the common case.

   352     if (type != "text/plain" && pluginData && pluginData->supportsMimeType(type)) 

   353         return PluginDocument::create(frame, url);

   354     if (isTextMIMEType(type))

   355         return TextDocument::create(frame, url);

   356 

   357 #if ENABLE(SVG)

   358     if (type == "image/svg+xml") {

   359 #if ENABLE(DASHBOARD_SUPPORT)    

   360         Settings* settings = frame ? frame->settings() : 0;

   361         if (!settings || !settings->usesDashboardBackwardCompatibilityMode())

   362 #endif

   363             return SVGDocument::create(frame, url);

   364     }

   365 #endif

   366     if (isXMLMIMEType(type))

   367         return Document::create(frame, url);

   368 

   369     return HTMLDocument::create(frame, url);

   370 }

   371 

   372 }