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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 MOJO_RUNNER_URL_RESOLVER_H_ | |
6 #define MOJO_RUNNER_URL_RESOLVER_H_ | |
7 | |
8 #include <map> | |
9 #include <set> | |
10 | |
11 #include "base/basictypes.h" | |
12 #include "base/command_line.h" | |
13 #include "base/files/file_path.h" | |
14 #include "url/gurl.h" | |
15 | |
16 namespace mojo { | |
17 namespace runner { | |
18 | |
19 // This class supports the mapping of URLs to other URLs. | |
20 // It's commonly used with mojo: URL, to provide a physical location URL | |
21 // (i.e. file: or https:) but works with any URL. | |
22 // By default, "mojo:" URLs resolve to a file location, with ".mojo" appended, | |
23 // but that resolution can be customized via the AddURLMapping and | |
24 // AddOriginMapping methods. | |
25 class URLResolver { | |
26 public: | |
27 URLResolver(); | |
28 ~URLResolver(); | |
29 | |
30 // Used for the return value of GetOriginMappings(). | |
31 struct OriginMapping { | |
32 OriginMapping(const std::string& origin, const std::string& base_url) | |
33 : origin(origin), base_url(base_url) {} | |
34 | |
35 std::string origin; | |
36 std::string base_url; | |
37 }; | |
38 | |
39 // Returns a list of origin mappings based on command line args. | |
40 // The switch --map-origin can be specified multiple times. Each occurrence | |
41 // has the format of --map-origin={origin}={base_url} | |
42 // For example: | |
43 // --map-origin=http://domokit.org=file:///source/out | |
44 static std::vector<OriginMapping> GetOriginMappings( | |
45 const base::CommandLine::StringVector& argv); | |
46 | |
47 // Add a custom mapping for a particular URL. If |mapped_url| is | |
48 // itself a mojo URL, then normal resolution rules apply. | |
49 void AddURLMapping(const GURL& url, const GURL& mapped_url); | |
50 | |
51 // Add a custom mapping for all URLs rooted at |origin|. An origin is a | |
52 // combination of URL scheme, host and port. | |
53 void AddOriginMapping(const GURL& origin, const GURL& base_url); | |
54 | |
55 // Applies all custom mappings for |url|, returning the last non-mapped url. | |
56 // For example, if 'a' maps to 'b' and 'b' maps to 'c', calling this with 'a' | |
57 // returns 'c'. | |
58 GURL ApplyMappings(const GURL& url) const; | |
59 | |
60 // If specified, then "mojo:" URLs will be resolved relative to this | |
61 // URL. That is, the portion after the colon will be appended to | |
62 // |mojo_base_url| with .mojo appended. | |
63 void SetMojoBaseURL(const GURL& mojo_base_url); | |
64 | |
65 // Resolve the given "mojo:" URL to the URL that should be used to fetch the | |
66 // code for the corresponding Mojo App. | |
67 GURL ResolveMojoURL(const GURL& mojo_url) const; | |
68 | |
69 private: | |
70 using GURLToGURLMap = std::map<GURL, GURL>; | |
71 GURLToGURLMap url_map_; | |
72 GURLToGURLMap origin_map_; | |
73 GURL mojo_base_url_; | |
74 | |
75 DISALLOW_COPY_AND_ASSIGN(URLResolver); | |
76 }; | |
77 | |
78 } // namespace runner | |
79 } // namespace mojo | |
80 | |
81 #endif // MOJO_RUNNER_URL_RESOLVER_H_ | |
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