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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 #ifndef CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_WEBREQUEST_WEBREQUEST_RULE_H_ | |
| 6 #define CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_WEBREQUEST_WEBREQUEST_RULE_H_ | |
| 7 | |
| 8 #include <list> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/compiler_specific.h" | |
| 12 #include "base/time.h" | |
| 13 #include "chrome/browser/extensions/api/declarative/rules_registry.h" | |
| 14 #include "chrome/browser/extensions/api/declarative_webrequest/request_stage.h" | |
| 15 | |
| 16 class ExtensionInfoMap; | |
| 17 class WebRequestPermissions; | |
| 18 | |
| 19 namespace extensions { | |
| 20 class Extension; | |
| 21 class URLMatcherConditionFactory; | |
| 22 class WebRequestActionSet; | |
| 23 class WebRequestConditionSet; | |
| 24 } | |
| 25 | |
| 26 namespace extension_web_request_api_helpers { | |
| 27 struct EventResponseDelta; | |
| 28 } | |
| 29 | |
| 30 namespace net { | |
| 31 class HttpResponseHeaders; | |
| 32 class URLRequest; | |
| 33 } | |
| 34 | |
| 35 namespace extensions { | |
| 36 | |
| 37 typedef linked_ptr<extension_web_request_api_helpers::EventResponseDelta> | |
| 38 LinkedPtrEventResponseDelta; | |
| 39 | |
| 40 // Representation of a rule of the declarative Web Request API | |
| 41 class WebRequestRule { | |
| 42 public: | |
| 43 typedef std::string ExtensionId; | |
| 44 typedef std::string RuleId; | |
| 45 typedef std::pair<ExtensionId, RuleId> GlobalRuleId; | |
| 46 typedef int Priority; | |
| 47 | |
| 48 struct RequestData { | |
| 49 RequestData(net::URLRequest* request, RequestStage stage) | |
| 50 : request(request), stage(stage), | |
| 51 original_response_headers(NULL) {} | |
| 52 RequestData(net::URLRequest* request, RequestStage stage, | |
| 53 const net::HttpResponseHeaders* original_response_headers) | |
| 54 : request(request), stage(stage), | |
| 55 original_response_headers(original_response_headers) {} | |
| 56 net::URLRequest* request; | |
| 57 RequestStage stage; | |
| 58 // Additional information about requests that is not | |
| 59 // available in all request stages. | |
| 60 const net::HttpResponseHeaders* original_response_headers; | |
| 61 }; | |
| 62 | |
| 63 WebRequestRule(const GlobalRuleId& id, | |
| 64 base::Time extension_installation_time, | |
| 65 scoped_ptr<WebRequestConditionSet> conditions, | |
| 66 scoped_ptr<WebRequestActionSet> actions, | |
| 67 Priority priority); | |
| 68 virtual ~WebRequestRule(); | |
| 69 | |
| 70 // If |error| is empty, the translation was successful and the returned | |
| 71 // rule is internally consistent. | |
| 72 static scoped_ptr<WebRequestRule> Create( | |
| 73 URLMatcherConditionFactory* url_matcher_condition_factory, | |
| 74 const std::string& extension_id, | |
| 75 base::Time extension_installation_time, | |
| 76 linked_ptr<RulesRegistry::Rule> rule, | |
| 77 std::string* error); | |
| 78 | |
| 79 const GlobalRuleId& id() const { return id_; } | |
| 80 const std::string& extension_id() const { return id_.first; } | |
| 81 const WebRequestConditionSet& conditions() const { return *conditions_; } | |
| 82 const WebRequestActionSet& actions() const { return *actions_; } | |
| 83 Priority priority() const { return priority_; } | |
| 84 | |
| 85 // Creates all deltas resulting from the ActionSet. This function should | |
| 86 // only be called when the conditions_ are fulfilled (from a semantic point | |
| 87 // of view; no harm is done if this function is called at other times for | |
| 88 // testing purposes). | |
| 89 // If |extension| is set, deltas are suppressed if the |extension| does not | |
| 90 // have have sufficient permissions to modify the request. The returned list | |
| 91 // may be empty in this case. | |
| 92 std::list<LinkedPtrEventResponseDelta> CreateDeltas( | |
| 93 const ExtensionInfoMap* extension_info_map, | |
| 94 const RequestData& request_data, | |
| 95 bool crosses_incognito) const; | |
| 96 | |
| 97 // Returns the minimum priority of rules that may be evaluated after | |
| 98 // this rule. Defaults to MAX_INT. Only valid if the conditions of this rule | |
| 99 // are fulfilled. | |
| 100 Priority GetMinimumPriority() const; | |
| 101 | |
| 102 private: | |
| 103 // Checks whether the set of |conditions| and |actions| are consistent, | |
| 104 // meaning for example that we do not allow combining an |action| that needs | |
| 105 // to be executed before the |condition| can be fulfilled. | |
| 106 // Returns true in case of consistency and MUST set |error| otherwise. | |
| 107 static bool CheckConsistency(WebRequestConditionSet* conditions, | |
| 108 WebRequestActionSet* actions, | |
| 109 std::string* error); | |
| 110 | |
| 111 GlobalRuleId id_; | |
| 112 base::Time extension_installation_time_; // For precedences of rules. | |
| 113 scoped_ptr<WebRequestConditionSet> conditions_; | |
| 114 scoped_ptr<WebRequestActionSet> actions_; | |
| 115 Priority priority_; | |
| 116 | |
| 117 DISALLOW_COPY_AND_ASSIGN(WebRequestRule); | |
| 118 }; | |
| 119 | |
| 120 } // namespace extensions | |
| 121 | |
| 122 #endif // CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_WEBREQUEST_WEBREQUEST_RULE_
H_ | |
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Chromium Code Reviews
Issue 11572061:
Create DeclarativeConditionSet, DeclarativeActionSet, and DeclarativeRule templates (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src