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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "webkit/browser/appcache/appcache.h" | |
6 | |
7 #include <algorithm> | |
8 | |
9 #include "base/logging.h" | |
10 #include "base/stl_util.h" | |
11 #include "webkit/browser/appcache/appcache_executable_handler.h" | |
12 #include "webkit/browser/appcache/appcache_group.h" | |
13 #include "webkit/browser/appcache/appcache_host.h" | |
14 #include "webkit/browser/appcache/appcache_storage.h" | |
15 #include "webkit/common/appcache/appcache_interfaces.h" | |
16 | |
17 namespace appcache { | |
18 | |
19 AppCache::AppCache(AppCacheStorage* storage, int64 cache_id) | |
20 : cache_id_(cache_id), | |
21 owning_group_(NULL), | |
22 online_whitelist_all_(false), | |
23 is_complete_(false), | |
24 cache_size_(0), | |
25 storage_(storage) { | |
26 storage_->working_set()->AddCache(this); | |
27 } | |
28 | |
29 AppCache::~AppCache() { | |
30 DCHECK(associated_hosts_.empty()); | |
31 if (owning_group_.get()) { | |
32 DCHECK(is_complete_); | |
33 owning_group_->RemoveCache(this); | |
34 } | |
35 DCHECK(!owning_group_.get()); | |
36 storage_->working_set()->RemoveCache(this); | |
37 STLDeleteContainerPairSecondPointers( | |
38 executable_handlers_.begin(), executable_handlers_.end()); | |
39 } | |
40 | |
41 void AppCache::UnassociateHost(AppCacheHost* host) { | |
42 associated_hosts_.erase(host); | |
43 } | |
44 | |
45 void AppCache::AddEntry(const GURL& url, const AppCacheEntry& entry) { | |
46 DCHECK(entries_.find(url) == entries_.end()); | |
47 entries_.insert(EntryMap::value_type(url, entry)); | |
48 cache_size_ += entry.response_size(); | |
49 } | |
50 | |
51 bool AppCache::AddOrModifyEntry(const GURL& url, const AppCacheEntry& entry) { | |
52 std::pair<EntryMap::iterator, bool> ret = | |
53 entries_.insert(EntryMap::value_type(url, entry)); | |
54 | |
55 // Entry already exists. Merge the types of the new and existing entries. | |
56 if (!ret.second) | |
57 ret.first->second.add_types(entry.types()); | |
58 else | |
59 cache_size_ += entry.response_size(); // New entry. Add to cache size. | |
60 return ret.second; | |
61 } | |
62 | |
63 void AppCache::RemoveEntry(const GURL& url) { | |
64 EntryMap::iterator found = entries_.find(url); | |
65 DCHECK(found != entries_.end()); | |
66 cache_size_ -= found->second.response_size(); | |
67 entries_.erase(found); | |
68 } | |
69 | |
70 AppCacheEntry* AppCache::GetEntry(const GURL& url) { | |
71 EntryMap::iterator it = entries_.find(url); | |
72 return (it != entries_.end()) ? &(it->second) : NULL; | |
73 } | |
74 | |
75 const AppCacheEntry* AppCache::GetEntryAndUrlWithResponseId( | |
76 int64 response_id, GURL* optional_url_out) { | |
77 for (EntryMap::const_iterator iter = entries_.begin(); | |
78 iter != entries_.end(); ++iter) { | |
79 if (iter->second.response_id() == response_id) { | |
80 if (optional_url_out) | |
81 *optional_url_out = iter->first; | |
82 return &iter->second; | |
83 } | |
84 } | |
85 return NULL; | |
86 } | |
87 | |
88 AppCacheExecutableHandler* AppCache::GetExecutableHandler(int64 response_id) { | |
89 HandlerMap::const_iterator found = executable_handlers_.find(response_id); | |
90 if (found != executable_handlers_.end()) | |
91 return found->second; | |
92 return NULL; | |
93 } | |
94 | |
95 AppCacheExecutableHandler* AppCache::GetOrCreateExecutableHandler( | |
96 int64 response_id, net::IOBuffer* handler_source) { | |
97 AppCacheExecutableHandler* handler = GetExecutableHandler(response_id); | |
98 if (handler) | |
99 return handler; | |
100 | |
101 GURL handler_url; | |
102 const AppCacheEntry* entry = GetEntryAndUrlWithResponseId( | |
103 response_id, &handler_url); | |
104 if (!entry || !entry->IsExecutable()) | |
105 return NULL; | |
106 | |
107 DCHECK(storage_->service()->handler_factory()); | |
108 scoped_ptr<AppCacheExecutableHandler> own_ptr = | |
109 storage_->service()->handler_factory()-> | |
110 CreateHandler(handler_url, handler_source); | |
111 handler = own_ptr.release(); | |
112 if (!handler) | |
113 return NULL; | |
114 executable_handlers_[response_id] = handler; | |
115 return handler; | |
116 } | |
117 | |
118 GURL AppCache::GetNamespaceEntryUrl(const NamespaceVector& namespaces, | |
119 const GURL& namespace_url) const { | |
120 size_t count = namespaces.size(); | |
121 for (size_t i = 0; i < count; ++i) { | |
122 if (namespaces[i].namespace_url == namespace_url) | |
123 return namespaces[i].target_url; | |
124 } | |
125 NOTREACHED(); | |
126 return GURL(); | |
127 } | |
128 | |
129 namespace { | |
130 bool SortNamespacesByLength( | |
131 const Namespace& lhs, const Namespace& rhs) { | |
132 return lhs.namespace_url.spec().length() > rhs.namespace_url.spec().length(); | |
133 } | |
134 } | |
135 | |
136 void AppCache::InitializeWithManifest(Manifest* manifest) { | |
137 DCHECK(manifest); | |
138 intercept_namespaces_.swap(manifest->intercept_namespaces); | |
139 fallback_namespaces_.swap(manifest->fallback_namespaces); | |
140 online_whitelist_namespaces_.swap(manifest->online_whitelist_namespaces); | |
141 online_whitelist_all_ = manifest->online_whitelist_all; | |
142 | |
143 // Sort the namespaces by url string length, longest to shortest, | |
144 // since longer matches trump when matching a url to a namespace. | |
145 std::sort(intercept_namespaces_.begin(), intercept_namespaces_.end(), | |
146 SortNamespacesByLength); | |
147 std::sort(fallback_namespaces_.begin(), fallback_namespaces_.end(), | |
148 SortNamespacesByLength); | |
149 } | |
150 | |
151 void AppCache::InitializeWithDatabaseRecords( | |
152 const AppCacheDatabase::CacheRecord& cache_record, | |
153 const std::vector<AppCacheDatabase::EntryRecord>& entries, | |
154 const std::vector<AppCacheDatabase::NamespaceRecord>& intercepts, | |
155 const std::vector<AppCacheDatabase::NamespaceRecord>& fallbacks, | |
156 const std::vector<AppCacheDatabase::OnlineWhiteListRecord>& whitelists) { | |
157 DCHECK(cache_id_ == cache_record.cache_id); | |
158 online_whitelist_all_ = cache_record.online_wildcard; | |
159 update_time_ = cache_record.update_time; | |
160 | |
161 for (size_t i = 0; i < entries.size(); ++i) { | |
162 const AppCacheDatabase::EntryRecord& entry = entries.at(i); | |
163 AddEntry(entry.url, AppCacheEntry(entry.flags, entry.response_id, | |
164 entry.response_size)); | |
165 } | |
166 DCHECK(cache_size_ == cache_record.cache_size); | |
167 | |
168 for (size_t i = 0; i < intercepts.size(); ++i) | |
169 intercept_namespaces_.push_back(intercepts.at(i).namespace_); | |
170 | |
171 for (size_t i = 0; i < fallbacks.size(); ++i) | |
172 fallback_namespaces_.push_back(fallbacks.at(i).namespace_); | |
173 | |
174 // Sort the fallback namespaces by url string length, longest to shortest, | |
175 // since longer matches trump when matching a url to a namespace. | |
176 std::sort(intercept_namespaces_.begin(), intercept_namespaces_.end(), | |
177 SortNamespacesByLength); | |
178 std::sort(fallback_namespaces_.begin(), fallback_namespaces_.end(), | |
179 SortNamespacesByLength); | |
180 | |
181 for (size_t i = 0; i < whitelists.size(); ++i) { | |
182 const AppCacheDatabase::OnlineWhiteListRecord& record = whitelists.at(i); | |
183 online_whitelist_namespaces_.push_back( | |
184 Namespace(APPCACHE_NETWORK_NAMESPACE, | |
185 record.namespace_url, | |
186 GURL(), | |
187 record.is_pattern)); | |
188 } | |
189 } | |
190 | |
191 void AppCache::ToDatabaseRecords( | |
192 const AppCacheGroup* group, | |
193 AppCacheDatabase::CacheRecord* cache_record, | |
194 std::vector<AppCacheDatabase::EntryRecord>* entries, | |
195 std::vector<AppCacheDatabase::NamespaceRecord>* intercepts, | |
196 std::vector<AppCacheDatabase::NamespaceRecord>* fallbacks, | |
197 std::vector<AppCacheDatabase::OnlineWhiteListRecord>* whitelists) { | |
198 DCHECK(group && cache_record && entries && fallbacks && whitelists); | |
199 DCHECK(entries->empty() && fallbacks->empty() && whitelists->empty()); | |
200 | |
201 cache_record->cache_id = cache_id_; | |
202 cache_record->group_id = group->group_id(); | |
203 cache_record->online_wildcard = online_whitelist_all_; | |
204 cache_record->update_time = update_time_; | |
205 cache_record->cache_size = 0; | |
206 | |
207 for (EntryMap::const_iterator iter = entries_.begin(); | |
208 iter != entries_.end(); ++iter) { | |
209 entries->push_back(AppCacheDatabase::EntryRecord()); | |
210 AppCacheDatabase::EntryRecord& record = entries->back(); | |
211 record.url = iter->first; | |
212 record.cache_id = cache_id_; | |
213 record.flags = iter->second.types(); | |
214 record.response_id = iter->second.response_id(); | |
215 record.response_size = iter->second.response_size(); | |
216 cache_record->cache_size += record.response_size; | |
217 } | |
218 | |
219 GURL origin = group->manifest_url().GetOrigin(); | |
220 | |
221 for (size_t i = 0; i < intercept_namespaces_.size(); ++i) { | |
222 intercepts->push_back(AppCacheDatabase::NamespaceRecord()); | |
223 AppCacheDatabase::NamespaceRecord& record = intercepts->back(); | |
224 record.cache_id = cache_id_; | |
225 record.origin = origin; | |
226 record.namespace_ = intercept_namespaces_[i]; | |
227 } | |
228 | |
229 for (size_t i = 0; i < fallback_namespaces_.size(); ++i) { | |
230 fallbacks->push_back(AppCacheDatabase::NamespaceRecord()); | |
231 AppCacheDatabase::NamespaceRecord& record = fallbacks->back(); | |
232 record.cache_id = cache_id_; | |
233 record.origin = origin; | |
234 record.namespace_ = fallback_namespaces_[i]; | |
235 } | |
236 | |
237 for (size_t i = 0; i < online_whitelist_namespaces_.size(); ++i) { | |
238 whitelists->push_back(AppCacheDatabase::OnlineWhiteListRecord()); | |
239 AppCacheDatabase::OnlineWhiteListRecord& record = whitelists->back(); | |
240 record.cache_id = cache_id_; | |
241 record.namespace_url = online_whitelist_namespaces_[i].namespace_url; | |
242 record.is_pattern = online_whitelist_namespaces_[i].is_pattern; | |
243 } | |
244 } | |
245 | |
246 bool AppCache::FindResponseForRequest(const GURL& url, | |
247 AppCacheEntry* found_entry, GURL* found_intercept_namespace, | |
248 AppCacheEntry* found_fallback_entry, GURL* found_fallback_namespace, | |
249 bool* found_network_namespace) { | |
250 // Ignore fragments when looking up URL in the cache. | |
251 GURL url_no_ref; | |
252 if (url.has_ref()) { | |
253 GURL::Replacements replacements; | |
254 replacements.ClearRef(); | |
255 url_no_ref = url.ReplaceComponents(replacements); | |
256 } else { | |
257 url_no_ref = url; | |
258 } | |
259 | |
260 // 6.6.6 Changes to the networking model | |
261 | |
262 AppCacheEntry* entry = GetEntry(url_no_ref); | |
263 if (entry) { | |
264 *found_entry = *entry; | |
265 return true; | |
266 } | |
267 | |
268 if ((*found_network_namespace = IsInNetworkNamespace(url_no_ref))) | |
269 return true; | |
270 | |
271 const Namespace* intercept_namespace = FindInterceptNamespace(url_no_ref); | |
272 if (intercept_namespace) { | |
273 entry = GetEntry(intercept_namespace->target_url); | |
274 DCHECK(entry); | |
275 *found_entry = *entry; | |
276 *found_intercept_namespace = intercept_namespace->namespace_url; | |
277 return true; | |
278 } | |
279 | |
280 const Namespace* fallback_namespace = FindFallbackNamespace(url_no_ref); | |
281 if (fallback_namespace) { | |
282 entry = GetEntry(fallback_namespace->target_url); | |
283 DCHECK(entry); | |
284 *found_fallback_entry = *entry; | |
285 *found_fallback_namespace = fallback_namespace->namespace_url; | |
286 return true; | |
287 } | |
288 | |
289 *found_network_namespace = online_whitelist_all_; | |
290 return *found_network_namespace; | |
291 } | |
292 | |
293 | |
294 void AppCache::ToResourceInfoVector(AppCacheResourceInfoVector* infos) const { | |
295 DCHECK(infos && infos->empty()); | |
296 for (EntryMap::const_iterator iter = entries_.begin(); | |
297 iter != entries_.end(); ++iter) { | |
298 infos->push_back(AppCacheResourceInfo()); | |
299 AppCacheResourceInfo& info = infos->back(); | |
300 info.url = iter->first; | |
301 info.is_master = iter->second.IsMaster(); | |
302 info.is_manifest = iter->second.IsManifest(); | |
303 info.is_intercept = iter->second.IsIntercept(); | |
304 info.is_fallback = iter->second.IsFallback(); | |
305 info.is_foreign = iter->second.IsForeign(); | |
306 info.is_explicit = iter->second.IsExplicit(); | |
307 info.size = iter->second.response_size(); | |
308 info.response_id = iter->second.response_id(); | |
309 } | |
310 } | |
311 | |
312 // static | |
313 const Namespace* AppCache::FindNamespace( | |
314 const NamespaceVector& namespaces, | |
315 const GURL& url) { | |
316 size_t count = namespaces.size(); | |
317 for (size_t i = 0; i < count; ++i) { | |
318 if (namespaces[i].IsMatch(url)) | |
319 return &namespaces[i]; | |
320 } | |
321 return NULL; | |
322 } | |
323 | |
324 } // namespace appcache | |
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