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| 1 /* | |
| 2 * Copyright 2008 The Native Client Authors. All rights reserved. | |
| 3 * Use of this source code is governed by a BSD-style license that can | |
| 4 * be found in the LICENSE file. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 // Portable interface for browser interaction | |
| 9 | |
| 10 #ifndef NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_SRPC_BROWSER_INTERFACE_H_ | |
| 11 #define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_SRPC_BROWSER_INTERFACE_H_ | |
| 12 | |
| 13 #include <stdio.h> | |
| 14 #include <map> | |
| 15 | |
| 16 #include "native_client/src/include/nacl_macros.h" | |
| 17 #include "native_client/src/include/nacl_string.h" | |
| 18 #include "native_client/src/include/portability.h" | |
| 19 #include "native_client/src/shared/npruntime/nacl_npapi.h" | |
| 20 #include "native_client/src/trusted/plugin/api_defines.h" | |
| 21 | |
| 22 namespace nacl { | |
| 23 | |
| 24 class NPModule; | |
| 25 | |
| 26 } // namespace | |
| 27 | |
| 28 namespace plugin { | |
| 29 | |
| 30 class ScriptableHandle; | |
| 31 class PortableHandle; | |
| 32 | |
| 33 // BrowserInterface represents the interface to the browser from | |
| 34 // the plugin, independent of whether it is the ActiveX or NPAPI instance. | |
| 35 // I.e., when the plugin needs to request an alert, it uses these interfaces. | |
| 36 class BrowserInterface { | |
| 37 public: | |
| 38 virtual ~BrowserInterface() { } | |
| 39 | |
| 40 // Functions for communication with the browser. | |
| 41 | |
| 42 // Convert a string to an identifier. | |
| 43 virtual uintptr_t StringToIdentifier(const nacl::string& str) = 0; | |
| 44 // Convert an identifier to a string. | |
| 45 virtual nacl::string IdentifierToString(uintptr_t ident) = 0; | |
| 46 | |
| 47 // Pops up an alert box. Returns false if that failed for any reason. | |
| 48 virtual bool Alert(InstanceIdentifier instance_id, | |
| 49 const nacl::string& text) = 0; | |
| 50 | |
| 51 // Evaluate a JavaScript string in the browser. | |
| 52 virtual bool EvalString(InstanceIdentifier plugin_identifier, | |
| 53 const nacl::string& str) = 0; | |
| 54 | |
| 55 // Gets the origin of the current page. Origin is scheme://domain. | |
| 56 virtual bool GetOrigin(InstanceIdentifier instance_id, | |
| 57 nacl::string* origin) = 0; | |
| 58 | |
| 59 // Creates a browser scriptable handle for a given portable handle. | |
| 60 // If handle is NULL, returns NULL. | |
| 61 virtual ScriptableHandle* NewScriptableHandle(PortableHandle* handle) = 0; | |
| 62 | |
| 63 // Filename-based version of the function below that takes a char* and size. | |
| 64 static bool MightBeElfExecutable(const nacl::string& filename, | |
| 65 nacl::string* error); | |
| 66 | |
| 67 // Returns true iff the first |size| bytes of |e_ident_bytes| appear to be | |
| 68 // a valid ELF file; returns an informative error message otherwise. | |
| 69 // The check for valid ELF executable is only done looking at the e_ident | |
| 70 // bytes. Fuller checking is done by the service_runtime. | |
| 71 static bool MightBeElfExecutable(const char* e_ident_bytes, | |
| 72 size_t size, | |
| 73 nacl::string* error); | |
| 74 | |
| 75 static const char* kNoError; | |
| 76 }; | |
| 77 | |
| 78 } // namespace plugin | |
| 79 | |
| 80 #endif // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_SRPC_BROWSER_INTERFACE_H_ | |
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