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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) = 0; | 33 virtual BlockState GetBlockState(const std::string& scheme, |
| 34 bool initiated_by_user_gesture) = 0; |
34 virtual void BlockRequest() = 0; | 35 virtual void BlockRequest() = 0; |
35 virtual void RunExternalProtocolDialog(const GURL& url, | 36 virtual void RunExternalProtocolDialog(const GURL& url, |
36 int render_process_host_id, | 37 int render_process_host_id, |
37 int routing_id) = 0; | 38 int routing_id) = 0; |
38 virtual void LaunchUrlWithoutSecurityCheck(const GURL& url) = 0; | 39 virtual void LaunchUrlWithoutSecurityCheck(const GURL& url) = 0; |
39 virtual void FinishedProcessingCheck() = 0; | 40 virtual void FinishedProcessingCheck() = 0; |
40 virtual ~Delegate() {} | 41 virtual ~Delegate() {} |
41 }; | 42 }; |
42 | 43 |
43 // Returns whether we should block a given scheme. | 44 // Returns whether we should block a given scheme. |
44 static BlockState GetBlockState(const std::string& scheme); | 45 static BlockState GetBlockState(const std::string& scheme, |
| 46 bool initiated_by_user_gesture); |
45 | 47 |
46 // Sets whether we should block a given scheme. | 48 // Sets whether we should block a given scheme. |
47 static void SetBlockState(const std::string& scheme, BlockState state); | 49 static void SetBlockState(const std::string& scheme, BlockState state); |
48 | 50 |
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, int render_process_host_id, | |
57 int tab_contents_id) { | |
58 LaunchUrlWithDelegate(url, render_process_host_id, tab_contents_id, NULL); | |
59 } | |
60 | |
61 // Version of LaunchUrl allowing use of a delegate to facilitate unit | 51 // Version of LaunchUrl allowing use of a delegate to facilitate unit |
62 // testing. | 52 // testing. |
63 static void LaunchUrlWithDelegate(const GURL& url, int render_process_host_id, | 53 static void LaunchUrlWithDelegate(const GURL& url, int render_process_host_id, |
64 int tab_contents_id, Delegate* delegate); | 54 int tab_contents_id, Delegate* delegate, |
| 55 bool initiated_by_user_gesture); |
65 | 56 |
66 // Creates and runs a External Protocol dialog box. | 57 // Creates and runs a External Protocol dialog box. |
67 // |url| - The url of the request. | 58 // |url| - The url of the request. |
68 // |render_process_host_id| and |routing_id| are used by | 59 // |render_process_host_id| and |routing_id| are used by |
69 // tab_util::GetWebContentsByID to aquire the tab contents associated with | 60 // tab_util::GetWebContentsByID to aquire the tab contents associated with |
70 // this dialog. | 61 // this dialog. |
71 // NOTE: There is a race between the Time of Check and the Time Of Use for | 62 // NOTE: There is a race between the Time of Check and the Time Of Use for |
72 // the command line. Since the caller (web page) does not have access | 63 // the command line. Since the caller (web page) does not have access |
73 // to change the command line by itself, we do not do anything special | 64 // to change the command line by itself, we do not do anything special |
74 // to protect against this scenario. | 65 // to protect against this scenario. |
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89 // url you have has been checked against the blacklist, and has been escaped. | 80 // url you have has been checked against the blacklist, and has been escaped. |
90 // All calls to this function should originate in some way from LaunchUrl. | 81 // All calls to this function should originate in some way from LaunchUrl. |
91 static void LaunchUrlWithoutSecurityCheck(const GURL& url, | 82 static void LaunchUrlWithoutSecurityCheck(const GURL& url, |
92 int render_process_host_id, | 83 int render_process_host_id, |
93 int tab_contents_id); | 84 int tab_contents_id); |
94 | 85 |
95 // Prepopulates the dictionary with known protocols to deny or allow, if | 86 // Prepopulates the dictionary with known protocols to deny or allow, if |
96 // preferences for them do not already exist. | 87 // preferences for them do not already exist. |
97 static void PrepopulateDictionary(base::DictionaryValue* win_pref); | 88 static void PrepopulateDictionary(base::DictionaryValue* win_pref); |
98 | 89 |
99 // Allows LaunchUrl to proceed with launching an external protocol handler. | 90 private: |
100 // This is typically triggered by a user gesture, but is also called for | 91 DISALLOW_COPY_AND_ASSIGN(ExternalProtocolHandler); |
101 // each extension API function. Note that each call to LaunchUrl resets | |
102 // the state to false (not allowed). | |
103 static void PermitLaunchUrl(); | |
104 }; | 92 }; |
105 | 93 |
106 #endif // CHROME_BROWSER_EXTERNAL_PROTOCOL_EXTERNAL_PROTOCOL_HANDLER_H_ | 94 #endif // CHROME_BROWSER_EXTERNAL_PROTOCOL_EXTERNAL_PROTOCOL_HANDLER_H_ |
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