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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_EXTERNAL_PROTOCOL_EXTERNAL_PROTOCOL_HANDLER_H_ | 5 #ifndef CHROME_BROWSER_EXTERNAL_PROTOCOL_EXTERNAL_PROTOCOL_HANDLER_H_ |
6 #define CHROME_BROWSER_EXTERNAL_PROTOCOL_EXTERNAL_PROTOCOL_HANDLER_H_ | 6 #define CHROME_BROWSER_EXTERNAL_PROTOCOL_EXTERNAL_PROTOCOL_HANDLER_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "chrome/browser/shell_integration.h" | 10 #include "chrome/browser/shell_integration.h" |
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23 BLOCK, | 23 BLOCK, |
24 UNKNOWN, | 24 UNKNOWN, |
25 }; | 25 }; |
26 | 26 |
27 // Delegate to allow unit testing to provide different behavior. | 27 // Delegate to allow unit testing to provide different behavior. |
28 class Delegate { | 28 class Delegate { |
29 public: | 29 public: |
30 virtual ShellIntegration::DefaultProtocolClientWorker* CreateShellWorker( | 30 virtual ShellIntegration::DefaultProtocolClientWorker* CreateShellWorker( |
31 ShellIntegration::DefaultWebClientObserver* observer, | 31 ShellIntegration::DefaultWebClientObserver* observer, |
32 const std::string& protocol) = 0; | 32 const std::string& protocol) = 0; |
33 virtual BlockState GetBlockState(const std::string& scheme, | 33 virtual BlockState GetBlockState(const std::string& scheme) = 0; |
34 bool initiated_by_user_gesture) = 0; | |
35 virtual void BlockRequest() = 0; | 34 virtual void BlockRequest() = 0; |
36 virtual void RunExternalProtocolDialog(const GURL& url, | 35 virtual void RunExternalProtocolDialog(const GURL& url, |
37 int render_process_host_id, | 36 int render_process_host_id, |
38 int routing_id) = 0; | 37 int routing_id) = 0; |
39 virtual void LaunchUrlWithoutSecurityCheck(const GURL& url) = 0; | 38 virtual void LaunchUrlWithoutSecurityCheck(const GURL& url) = 0; |
40 virtual void FinishedProcessingCheck() = 0; | 39 virtual void FinishedProcessingCheck() = 0; |
41 virtual ~Delegate() {} | 40 virtual ~Delegate() {} |
42 }; | 41 }; |
43 | 42 |
44 // Returns whether we should block a given scheme. | 43 // Returns whether we should block a given scheme. |
45 static BlockState GetBlockState(const std::string& scheme, | 44 static BlockState GetBlockState(const std::string& scheme); |
46 bool initiated_by_user_gesture); | |
47 | 45 |
48 // Sets whether we should block a given scheme. | 46 // Sets whether we should block a given scheme. |
49 static void SetBlockState(const std::string& scheme, BlockState state); | 47 static void SetBlockState(const std::string& scheme, BlockState state); |
50 | 48 |
| 49 // Checks to see if the protocol is allowed, if it is whitelisted, |
| 50 // the application associated with the protocol is launched on the io thread, |
| 51 // if it is blacklisted, returns silently. Otherwise, an |
| 52 // ExternalProtocolDialog is created asking the user. If the user accepts, |
| 53 // LaunchUrlWithoutSecurityCheck is called on the io thread and the |
| 54 // application is launched. |
| 55 // Must run on the UI thread. |
| 56 static void LaunchUrl(const GURL& url, |
| 57 int render_process_host_id, |
| 58 int tab_contents_id) { |
| 59 LaunchUrlWithDelegate(url, render_process_host_id, tab_contents_id, NULL); |
| 60 } |
| 61 |
51 // Version of LaunchUrl allowing use of a delegate to facilitate unit | 62 // Version of LaunchUrl allowing use of a delegate to facilitate unit |
52 // testing. | 63 // testing. |
53 static void LaunchUrlWithDelegate(const GURL& url, int render_process_host_id, | 64 static void LaunchUrlWithDelegate(const GURL& url, |
54 int tab_contents_id, Delegate* delegate, | 65 int render_process_host_id, |
55 bool initiated_by_user_gesture); | 66 int tab_contents_id, |
| 67 Delegate* delegate); |
56 | 68 |
57 // Creates and runs a External Protocol dialog box. | 69 // Creates and runs a External Protocol dialog box. |
58 // |url| - The url of the request. | 70 // |url| - The url of the request. |
59 // |render_process_host_id| and |routing_id| are used by | 71 // |render_process_host_id| and |routing_id| are used by |
60 // tab_util::GetWebContentsByID to aquire the tab contents associated with | 72 // tab_util::GetWebContentsByID to aquire the tab contents associated with |
61 // this dialog. | 73 // this dialog. |
62 // NOTE: There is a race between the Time of Check and the Time Of Use for | 74 // NOTE: There is a race between the Time of Check and the Time Of Use for |
63 // the command line. Since the caller (web page) does not have access | 75 // the command line. Since the caller (web page) does not have access |
64 // to change the command line by itself, we do not do anything special | 76 // to change the command line by itself, we do not do anything special |
65 // to protect against this scenario. | 77 // to protect against this scenario. |
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80 // url you have has been checked against the blacklist, and has been escaped. | 92 // url you have has been checked against the blacklist, and has been escaped. |
81 // All calls to this function should originate in some way from LaunchUrl. | 93 // All calls to this function should originate in some way from LaunchUrl. |
82 static void LaunchUrlWithoutSecurityCheck(const GURL& url, | 94 static void LaunchUrlWithoutSecurityCheck(const GURL& url, |
83 int render_process_host_id, | 95 int render_process_host_id, |
84 int tab_contents_id); | 96 int tab_contents_id); |
85 | 97 |
86 // Prepopulates the dictionary with known protocols to deny or allow, if | 98 // Prepopulates the dictionary with known protocols to deny or allow, if |
87 // preferences for them do not already exist. | 99 // preferences for them do not already exist. |
88 static void PrepopulateDictionary(base::DictionaryValue* win_pref); | 100 static void PrepopulateDictionary(base::DictionaryValue* win_pref); |
89 | 101 |
| 102 // Allows LaunchUrl to proceed with launching an external protocol handler. |
| 103 // This is typically triggered by a user gesture, but is also called for |
| 104 // each extension API function. Note that each call to LaunchUrl resets |
| 105 // the state to false (not allowed). |
| 106 static void PermitLaunchUrl(); |
| 107 |
90 private: | 108 private: |
91 DISALLOW_COPY_AND_ASSIGN(ExternalProtocolHandler); | 109 DISALLOW_COPY_AND_ASSIGN(ExternalProtocolHandler); |
92 }; | 110 }; |
93 | 111 |
94 #endif // CHROME_BROWSER_EXTERNAL_PROTOCOL_EXTERNAL_PROTOCOL_HANDLER_H_ | 112 #endif // CHROME_BROWSER_EXTERNAL_PROTOCOL_EXTERNAL_PROTOCOL_HANDLER_H_ |
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