1 // Copyright 2014 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 COMPONENTS_NACL_RENDERER_JSON_MANIFEST_H 6 #define COMPONENTS_NACL_RENDERER_JSON_MANIFEST_H 7 8 #include <set> 9 #include <string> 10 11 #include "base/memory/scoped_ptr.h" 12 #include "ppapi/c/pp_array_output.h" 13 #include "ppapi/c/pp_instance.h" 14 #include "ppapi/c/private/ppb_nacl_private.h" 15 #include "third_party/jsoncpp/source/include/json/value.h" 16 17 namespace nacl { 18 class JsonManifest; 19 class NexeLoadManager; 20 21 // There is at most one JsonManifest per PP_Instance. This adds a one-to-one 22 // mapping. 23 void AddJsonManifest(PP_Instance instance, scoped_ptr<JsonManifest> manifest); 24 25 // Returns a non-owning pointer to the JsonManifest for the given instance. 26 // Returns NULL if no such JsonManifest exists. 27 JsonManifest* GetJsonManifest(PP_Instance instance); 28 void DeleteJsonManifest(PP_Instance instance); 29 30 class JsonManifest { 31 public: 32 struct ErrorInfo { 33 PP_NaClError error; 34 std::string string; 35 }; 36 37 JsonManifest(const std::string& manifest_base_url, 38 const std::string& sandbox_isa, 39 bool nonsfi_enabled, 40 bool pnacl_debug); 41 42 // Initialize the manifest object for use by later lookups. Returns 43 // true if the manifest parses correctly and matches the schema. 44 bool Init(const std::string& json_manifest, ErrorInfo* error_info); 45 46 // Gets the full program URL for the current sandbox ISA from the 47 // manifest file. 48 bool GetProgramURL(std::string* full_url, 49 PP_PNaClOptions* pnacl_options, 50 bool* uses_nonsfi_mode, 51 ErrorInfo* error_info) const; 52 53 // Resolves a key from the "files" section to a fully resolved URL, 54 // i.e., relative URL values are fully expanded relative to the 55 // manifest's URL (via ResolveURL). 56 // If there was an error, details are reported via error_info. 57 bool ResolveKey(const std::string& key, 58 std::string* full_url, 59 PP_PNaClOptions* pnacl_options) const; 60 61 private: 62 bool MatchesSchema(ErrorInfo* error_info); 63 bool GetKeyUrl(const Json::Value& dictionary, 64 const std::string& key, 65 std::string* full_url, 66 PP_PNaClOptions* pnacl_options) const; 67 bool GetURLFromISADictionary(const Json::Value& dictionary, 68 const std::string& parent_key, 69 std::string* url, 70 PP_PNaClOptions* pnacl_options, 71 bool* uses_nonsfi_mode, 72 ErrorInfo* error_info) const; 73 74 std::string manifest_base_url_; 75 std::string sandbox_isa_; 76 bool nonsfi_enabled_; 77 bool pnacl_debug_; 78 79 // The dictionary of manifest information parsed in Init(). 80 Json::Value dictionary_; 81 }; 82 83 } // namespace nacl 84 85 #endif // COMPONENTS_NACL_RENDERER_JSON_MANIFEST_H 86