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1 /*
2  * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #include "config.h"
27 #include "WebKitDLL.h"
28 #include "WebCache.h"
29 
30 #include "CFDictionaryPropertyBag.h"
31 #include <WebCore/ApplicationCacheStorage.h>
32 #include <WebCore/MemoryCache.h>
33 #include <WebCore/CrossOriginPreflightResultCache.h>
34 
35 // WebCache ---------------------------------------------------------------------------
36 
WebCache()37 WebCache::WebCache()
38 : m_refCount(0)
39 {
40     gClassCount++;
41     gClassNameCount.add("WebCache");
42 }
43 
~WebCache()44 WebCache::~WebCache()
45 {
46     gClassCount--;
47     gClassNameCount.remove("WebCache");
48 }
49 
createInstance()50 WebCache* WebCache::createInstance()
51 {
52     WebCache* instance = new WebCache();
53     instance->AddRef();
54     return instance;
55 }
56 
57 // IUnknown -------------------------------------------------------------------
58 
QueryInterface(REFIID riid,void ** ppvObject)59 HRESULT STDMETHODCALLTYPE WebCache::QueryInterface(REFIID riid, void** ppvObject)
60 {
61     *ppvObject = 0;
62     if (IsEqualGUID(riid, IID_IUnknown))
63         *ppvObject = static_cast<WebCache*>(this);
64     else if (IsEqualGUID(riid, IID_IWebCache))
65         *ppvObject = static_cast<WebCache*>(this);
66     else
67         return E_NOINTERFACE;
68 
69     AddRef();
70     return S_OK;
71 }
72 
AddRef(void)73 ULONG STDMETHODCALLTYPE WebCache::AddRef(void)
74 {
75     return ++m_refCount;
76 }
77 
Release(void)78 ULONG STDMETHODCALLTYPE WebCache::Release(void)
79 {
80     ULONG newRef = --m_refCount;
81     if (!newRef)
82         delete(this);
83 
84     return newRef;
85 }
86 
87 // IWebCache ------------------------------------------------------------------------------
88 
statistics(int * count,IPropertyBag ** s)89 HRESULT STDMETHODCALLTYPE WebCache::statistics(
90     /* [in][out] */ int* count,
91     /* [retval][out] */ IPropertyBag ** s)
92 {
93     if (!count || (s && *count < 4))
94         return E_FAIL;
95 
96     *count = 4;
97     if (!s)
98         return S_OK;
99 
100     WebCore::MemoryCache::Statistics stat = WebCore::memoryCache()->getStatistics();
101 
102     static CFStringRef imagesKey = CFSTR("images");
103     static CFStringRef stylesheetsKey = CFSTR("style sheets");
104     static CFStringRef xslKey = CFSTR("xsl");
105     static CFStringRef scriptsKey = CFSTR("scripts");
106 #if !ENABLE(XSLT)
107     const int zero = 0;
108 #endif
109 
110     RetainPtr<CFMutableDictionaryRef> dictionary(AdoptCF,
111         CFDictionaryCreateMutable(0, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
112 
113     RetainPtr<CFNumberRef> value(AdoptCF, CFNumberCreate(0, kCFNumberIntType, &stat.images.count));
114     CFDictionaryAddValue(dictionary.get(), imagesKey, value.get());
115 
116     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.cssStyleSheets.count));
117     CFDictionaryAddValue(dictionary.get(), stylesheetsKey, value.get());
118 
119 #if ENABLE(XSLT)
120     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.xslStyleSheets.count));
121 #else
122     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &zero));
123 #endif
124     CFDictionaryAddValue(dictionary.get(), xslKey, value.get());
125 
126     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.scripts.count));
127     CFDictionaryAddValue(dictionary.get(), scriptsKey, value.get());
128 
129     COMPtr<CFDictionaryPropertyBag> propBag = CFDictionaryPropertyBag::createInstance();
130     propBag->setDictionary(dictionary.get());
131     s[0] = propBag.releaseRef();
132 
133     dictionary.adoptCF(CFDictionaryCreateMutable(0, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
134 
135     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.images.size));
136     CFDictionaryAddValue(dictionary.get(), imagesKey, value.get());
137 
138     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.cssStyleSheets.size));
139     CFDictionaryAddValue(dictionary.get(), stylesheetsKey, value.get());
140 
141 #if ENABLE(XSLT)
142     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.xslStyleSheets.size));
143 #else
144     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &zero));
145 #endif
146     CFDictionaryAddValue(dictionary.get(), xslKey, value.get());
147 
148     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.scripts.size));
149     CFDictionaryAddValue(dictionary.get(), scriptsKey, value.get());
150 
151     propBag = CFDictionaryPropertyBag::createInstance();
152     propBag->setDictionary(dictionary.get());
153     s[1] = propBag.releaseRef();
154 
155     dictionary.adoptCF(CFDictionaryCreateMutable(0, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
156 
157     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.images.liveSize));
158     CFDictionaryAddValue(dictionary.get(), imagesKey, value.get());
159 
160     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.cssStyleSheets.liveSize));
161     CFDictionaryAddValue(dictionary.get(), stylesheetsKey, value.get());
162 
163 #if ENABLE(XSLT)
164     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.xslStyleSheets.liveSize));
165 #else
166     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &zero));
167 #endif
168     CFDictionaryAddValue(dictionary.get(), xslKey, value.get());
169 
170     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.scripts.liveSize));
171     CFDictionaryAddValue(dictionary.get(), scriptsKey, value.get());
172 
173     propBag = CFDictionaryPropertyBag::createInstance();
174     propBag->setDictionary(dictionary.get());
175     s[2] = propBag.releaseRef();
176 
177     dictionary.adoptCF(CFDictionaryCreateMutable(0, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
178 
179     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.images.decodedSize));
180     CFDictionaryAddValue(dictionary.get(), imagesKey, value.get());
181 
182     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.cssStyleSheets.decodedSize));
183     CFDictionaryAddValue(dictionary.get(), stylesheetsKey, value.get());
184 
185 #if ENABLE(XSLT)
186     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.xslStyleSheets.decodedSize));
187 #else
188     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &zero));
189 #endif
190     CFDictionaryAddValue(dictionary.get(), xslKey, value.get());
191 
192     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.scripts.decodedSize));
193     CFDictionaryAddValue(dictionary.get(), scriptsKey, value.get());
194 
195     propBag = CFDictionaryPropertyBag::createInstance();
196     propBag->setDictionary(dictionary.get());
197     s[3] = propBag.releaseRef();
198 
199     return S_OK;
200 }
201 
empty(void)202 HRESULT STDMETHODCALLTYPE WebCache::empty( void)
203 {
204     if (WebCore::memoryCache()->disabled())
205         return S_OK;
206     WebCore::memoryCache()->setDisabled(true);
207     WebCore::memoryCache()->setDisabled(false);
208 
209     // Empty the application cache.
210     WebCore::cacheStorage().empty();
211 
212     // Empty the Cross-Origin Preflight cache
213     WebCore::CrossOriginPreflightResultCache::shared().empty();
214 
215     return S_OK;
216 }
217 
setDisabled(BOOL disabled)218 HRESULT STDMETHODCALLTYPE WebCache::setDisabled(
219     /* [in] */ BOOL disabled)
220 {
221     WebCore::memoryCache()->setDisabled(!!disabled);
222     return S_OK;
223 }
224 
disabled(BOOL * disabled)225 HRESULT STDMETHODCALLTYPE WebCache::disabled(
226     /* [out][retval] */ BOOL* disabled)
227 {
228     if (!disabled)
229         return E_POINTER;
230     *disabled = WebCore::memoryCache()->disabled();
231     return S_OK;
232 }
233