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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 "FTPDirectoryDocument.h"
35 #include "HTMLDocument.h"
36 #include "HTMLNames.h"
37 #include "HTMLViewSourceDocument.h"
38 #include "Image.h"
39 #include "ImageDocument.h"
40 #include "MediaDocument.h"
41 #include "MediaList.h"
42 #include "MediaPlayer.h"
43 #include "MIMETypeRegistry.h"
44 #include "Page.h"
45 #include "PluginData.h"
46 #include "PluginDocument.h"
47 #include "RegularExpression.h"
48 #include "Settings.h"
49 #include "TextDocument.h"
50 #include "XMLNames.h"
51 #include <wtf/StdLibExtras.h>
52 
53 #if ENABLE(SVG)
54 #include "SVGNames.h"
55 #include "SVGDocument.h"
56 #endif
57 
58 #if ENABLE(WML)
59 #include "WMLNames.h"
60 #include "WMLDocument.h"
61 #endif
62 
63 namespace WebCore {
64 
65 #if ENABLE(SVG)
66 
67 typedef HashSet<String, CaseFoldingHash> FeatureSet;
68 
addString(FeatureSet & set,const char * string)69 static void addString(FeatureSet& set, const char* string)
70 {
71     set.add(string);
72 }
73 
isSVG10Feature(const String & feature)74 static bool isSVG10Feature(const String &feature)
75 {
76     static bool initialized = false;
77     DEFINE_STATIC_LOCAL(FeatureSet, svgFeatures, ());
78     if (!initialized) {
79 #if ENABLE(SVG_USE) && ENABLE(SVG_FOREIGN_OBJECT) && ENABLE(FILTERS) && ENABLE(SVG_FONTS)
80         addString(svgFeatures, "svg");
81         addString(svgFeatures, "svg.static");
82 #endif
83 //      addString(svgFeatures, "svg.animation");
84 //      addString(svgFeatures, "svg.dynamic");
85 //      addString(svgFeatures, "svg.dom.animation");
86 //      addString(svgFeatures, "svg.dom.dynamic");
87 #if ENABLE(SVG_USE) && ENABLE(SVG_FOREIGN_OBJECT) && ENABLE(FILTERS) && ENABLE(SVG_FONTS)
88         addString(svgFeatures, "dom");
89         addString(svgFeatures, "dom.svg");
90         addString(svgFeatures, "dom.svg.static");
91 #endif
92 //      addString(svgFeatures, "svg.all");
93 //      addString(svgFeatures, "dom.svg.all");
94         initialized = true;
95     }
96     return svgFeatures.contains(feature);
97 }
98 
isSVG11Feature(const String & feature)99 static bool isSVG11Feature(const String &feature)
100 {
101     static bool initialized = false;
102     DEFINE_STATIC_LOCAL(FeatureSet, svgFeatures, ());
103     if (!initialized) {
104         // Sadly, we cannot claim to implement any of the SVG 1.1 generic feature sets
105         // lack of Font and Filter support.
106         // http://bugs.webkit.org/show_bug.cgi?id=15480
107 #if ENABLE(SVG_USE) && ENABLE(SVG_FOREIGN_OBJECT) && ENABLE(FILTERS) && ENABLE(SVG_FONTS)
108         addString(svgFeatures, "SVG");
109         addString(svgFeatures, "SVGDOM");
110         addString(svgFeatures, "SVG-static");
111         addString(svgFeatures, "SVGDOM-static");
112 #endif
113 #if ENABLE(SVG_ANIMATION)
114         addString(svgFeatures, "SVG-animation");
115         addString(svgFeatures, "SVGDOM-animation");
116 #endif
117 //      addString(svgFeatures, "SVG-dynamic);
118 //      addString(svgFeatures, "SVGDOM-dynamic);
119         addString(svgFeatures, "CoreAttribute");
120 #if ENABLE(SVG_USE)
121         addString(svgFeatures, "Structure");
122         addString(svgFeatures, "BasicStructure");
123 #endif
124         addString(svgFeatures, "ContainerAttribute");
125         addString(svgFeatures, "ConditionalProcessing");
126         addString(svgFeatures, "Image");
127         addString(svgFeatures, "Style");
128         addString(svgFeatures, "ViewportAttribute");
129         addString(svgFeatures, "Shape");
130 //      addString(svgFeatures, "Text"); // requires altGlyph, bug 6426
131         addString(svgFeatures, "BasicText");
132         addString(svgFeatures, "PaintAttribute");
133         addString(svgFeatures, "BasicPaintAttribute");
134         addString(svgFeatures, "OpacityAttribute");
135         addString(svgFeatures, "GraphicsAttribute");
136         addString(svgFeatures, "BaseGraphicsAttribute");
137         addString(svgFeatures, "Marker");
138 //      addString(svgFeatures, "ColorProfile"); // requires color-profile, bug 6037
139         addString(svgFeatures, "Gradient");
140         addString(svgFeatures, "Pattern");
141         addString(svgFeatures, "Clip");
142         addString(svgFeatures, "BasicClip");
143         addString(svgFeatures, "Mask");
144 #if ENABLE(FILTERS)
145 //      addString(svgFeatures, "Filter");
146         addString(svgFeatures, "BasicFilter");
147 #endif
148         addString(svgFeatures, "DocumentEventsAttribute");
149         addString(svgFeatures, "GraphicalEventsAttribute");
150 //      addString(svgFeatures, "AnimationEventsAttribute");
151         addString(svgFeatures, "Cursor");
152         addString(svgFeatures, "Hyperlinking");
153         addString(svgFeatures, "XlinkAttribute");
154         addString(svgFeatures, "ExternalResourcesRequired");
155 //      addString(svgFeatures, "View"); // buggy <view> support, bug 16962
156         addString(svgFeatures, "Script");
157 #if ENABLE(SVG_ANIMATION)
158         addString(svgFeatures, "Animation");
159 #endif
160 #if ENABLE(SVG_FONTS)
161         addString(svgFeatures, "Font");
162         addString(svgFeatures, "BasicFont");
163 #endif
164 #if ENABLE(SVG_FOREIGN_OBJECT)
165         addString(svgFeatures, "Extensibility");
166 #endif
167         initialized = true;
168     }
169     return svgFeatures.contains(feature);
170 }
171 #endif
172 
hasFeature(const String & feature,const String & version)173 bool DOMImplementation::hasFeature(const String& feature, const String& version)
174 {
175     String lower = feature.lower();
176     if (lower == "core" || lower == "html" || lower == "xml" || lower == "xhtml")
177         return version.isEmpty() || version == "1.0" || version == "2.0";
178     if (lower == "css"
179             || lower == "css2"
180             || lower == "events"
181             || lower == "htmlevents"
182             || lower == "mouseevents"
183             || lower == "mutationevents"
184             || lower == "range"
185             || lower == "stylesheets"
186             || lower == "traversal"
187             || lower == "uievents"
188             || lower == "views")
189         return version.isEmpty() || version == "2.0";
190     if (lower == "xpath" || lower == "textevents")
191         return version.isEmpty() || version == "3.0";
192 
193 #if ENABLE(SVG)
194     if ((version.isEmpty() || version == "1.1") && feature.startsWith("http://www.w3.org/tr/svg11/feature#", false)) {
195         if (isSVG11Feature(feature.right(feature.length() - 35)))
196             return true;
197     }
198 
199     if ((version.isEmpty() || version == "1.0") && feature.startsWith("org.w3c.", false)) {
200         if (isSVG10Feature(feature.right(feature.length() - 8)))
201             return true;
202     }
203 #endif
204 
205     return false;
206 }
207 
createDocumentType(const String & qualifiedName,const String & publicId,const String & systemId,ExceptionCode & ec)208 PassRefPtr<DocumentType> DOMImplementation::createDocumentType(const String& qualifiedName,
209     const String& publicId, const String& systemId, ExceptionCode& ec)
210 {
211     String prefix, localName;
212     if (!Document::parseQualifiedName(qualifiedName, prefix, localName, ec))
213         return 0;
214 
215     return DocumentType::create(0, qualifiedName, publicId, systemId);
216 }
217 
getInterface(const String &)218 DOMImplementation* DOMImplementation::getInterface(const String& /*feature*/)
219 {
220     return 0;
221 }
222 
createDocument(const String & namespaceURI,const String & qualifiedName,DocumentType * doctype,ExceptionCode & ec)223 PassRefPtr<Document> DOMImplementation::createDocument(const String& namespaceURI,
224     const String& qualifiedName, DocumentType* doctype, ExceptionCode& ec)
225 {
226     RefPtr<Document> doc;
227 #if ENABLE(SVG)
228     if (namespaceURI == SVGNames::svgNamespaceURI)
229         doc = SVGDocument::create(0);
230     else
231 #endif
232 #if ENABLE(WML)
233     if (namespaceURI == WMLNames::wmlNamespaceURI)
234         doc = WMLDocument::create(0);
235     else
236 #endif
237     if (namespaceURI == HTMLNames::xhtmlNamespaceURI)
238         doc = Document::createXHTML(0);
239     else
240         doc = Document::create(0);
241 
242     RefPtr<Node> documentElement;
243     if (!qualifiedName.isEmpty()) {
244         documentElement = doc->createElementNS(namespaceURI, qualifiedName, ec);
245         if (ec)
246             return 0;
247     }
248 
249     // WRONG_DOCUMENT_ERR: Raised if doctype has already been used with a different document or was
250     // created from a different implementation.
251     // Hixie's interpretation of the DOM Core spec suggests we should prefer
252     // other exceptions to WRONG_DOCUMENT_ERR (based on order mentioned in spec).
253     if (doctype && doctype->document()) {
254         ec = WRONG_DOCUMENT_ERR;
255         return 0;
256     }
257 
258     if (doctype)
259         doc->addChild(doctype);
260     if (documentElement)
261         doc->addChild(documentElement.release());
262 
263     return doc.release();
264 }
265 
createCSSStyleSheet(const String &,const String & media,ExceptionCode &)266 PassRefPtr<CSSStyleSheet> DOMImplementation::createCSSStyleSheet(const String&, const String& media, ExceptionCode&)
267 {
268     // FIXME: Title should be set.
269     // FIXME: Media could have wrong syntax, in which case we should generate an exception.
270     RefPtr<CSSStyleSheet> sheet = CSSStyleSheet::create();
271     sheet->setMedia(MediaList::createAllowingDescriptionSyntax(sheet.get(), media));
272     return sheet.release();
273 }
274 
createDocument(Frame * frame)275 PassRefPtr<Document> DOMImplementation::createDocument(Frame* frame)
276 {
277     return Document::create(frame);
278 }
279 
createHTMLDocument(Frame * frame)280 PassRefPtr<HTMLDocument> DOMImplementation::createHTMLDocument(Frame* frame)
281 {
282     return HTMLDocument::create(frame);
283 }
284 
isXMLMIMEType(const String & mimeType)285 bool DOMImplementation::isXMLMIMEType(const String& mimeType)
286 {
287     if (mimeType == "text/xml" || mimeType == "application/xml" || mimeType == "text/xsl")
288         return true;
289     static const char* const validChars = "[0-9a-zA-Z_\\-+~!$\\^{}|.%'`#&*]"; // per RFCs: 3023, 2045
290     DEFINE_STATIC_LOCAL(RegularExpression, xmlTypeRegExp, (String("^") + validChars + "+/" + validChars + "+\\+xml$", TextCaseSensitive));
291     return xmlTypeRegExp.match(mimeType) > -1;
292 }
293 
isTextMIMEType(const String & mimeType)294 bool DOMImplementation::isTextMIMEType(const String& mimeType)
295 {
296     if (MIMETypeRegistry::isSupportedJavaScriptMIMEType(mimeType) ||
297         (mimeType.startsWith("text/") && mimeType != "text/html" &&
298          mimeType != "text/xml" && mimeType != "text/xsl"))
299         return true;
300 
301     return false;
302 }
303 
createHTMLDocument(const String & title)304 PassRefPtr<HTMLDocument> DOMImplementation::createHTMLDocument(const String& title)
305 {
306     RefPtr<HTMLDocument> d = HTMLDocument::create(0);
307     d->open();
308     d->write("<!doctype html><html><body></body></html>");
309     d->setTitle(title);
310     return d.release();
311 }
312 
createDocument(const String & type,Frame * frame,bool inViewSourceMode)313 PassRefPtr<Document> DOMImplementation::createDocument(const String& type, Frame* frame, bool inViewSourceMode)
314 {
315     if (inViewSourceMode)
316         return HTMLViewSourceDocument::create(frame, type);
317 
318     // Plugins cannot take HTML and XHTML from us, and we don't even need to initialize the plugin database for those.
319     if (type == "text/html")
320         return HTMLDocument::create(frame);
321     if (type == "application/xhtml+xml"
322 #if ENABLE(XHTMLMP)
323         || type == "application/vnd.wap.xhtml+xml"
324 #endif
325         )
326         return Document::createXHTML(frame);
327 
328 #if ENABLE(WML)
329     if (type == "text/vnd.wap.wml" || type == "application/vnd.wap.wmlc")
330         return WMLDocument::create(frame);
331 #endif
332 
333 #if ENABLE(FTPDIR)
334     // Plugins cannot take FTP from us either
335     if (type == "application/x-ftp-directory")
336         return FTPDirectoryDocument::create(frame);
337 #endif
338 
339     PluginData* pluginData = 0;
340     if (frame && frame->page() && frame->page()->settings()->arePluginsEnabled())
341         pluginData = frame->page()->pluginData();
342 
343     // PDF is one image type for which a plugin can override built-in support.
344     // We do not want QuickTime to take over all image types, obviously.
345     if ((type == "application/pdf" || type == "text/pdf") && pluginData && pluginData->supportsMimeType(type))
346         return PluginDocument::create(frame);
347     if (Image::supportsType(type))
348         return ImageDocument::create(frame);
349 
350 #if ENABLE(VIDEO)
351      // Check to see if the type can be played by our MediaPlayer, if so create a MediaDocument
352      if (MediaPlayer::supportsType(ContentType(type)))
353          return MediaDocument::create(frame);
354 #endif
355 
356     // Everything else except text/plain can be overridden by plugins. In particular, Adobe SVG Viewer should be used for SVG, if installed.
357     // Disallowing plug-ins to use text/plain prevents plug-ins from hijacking a fundamental type that the browser is expected to handle,
358     // and also serves as an optimization to prevent loading the plug-in database in the common case.
359     if (type != "text/plain" && pluginData && pluginData->supportsMimeType(type))
360         return PluginDocument::create(frame);
361     if (isTextMIMEType(type))
362         return TextDocument::create(frame);
363 
364 #if ENABLE(SVG)
365     if (type == "image/svg+xml") {
366 #if ENABLE(DASHBOARD_SUPPORT)
367         Settings* settings = frame ? frame->settings() : 0;
368         if (!settings || !settings->usesDashboardBackwardCompatibilityMode())
369 #endif
370             return SVGDocument::create(frame);
371     }
372 #endif
373     if (isXMLMIMEType(type))
374         return Document::create(frame);
375 
376     return HTMLDocument::create(frame);
377 }
378 
379 }
380