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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 #include "mojo/shell/url_resolver.h" |
| 6 |
| 7 #include "base/base_paths.h" |
| 8 #include "base/files/file_path.h" |
| 9 #include "base/logging.h" |
| 10 #include "base/strings/utf_string_conversions.h" |
| 11 #include "mojo/shell/application_manager/query_util.h" |
| 12 #include "mojo/shell/filename_util.h" |
| 13 #include "mojo/shell/switches.h" |
| 14 #include "url/url_util.h" |
| 15 |
| 16 namespace mojo { |
| 17 namespace shell { |
| 18 |
| 19 URLResolver::URLResolver() { |
| 20 // Needed to treat first component of mojo URLs as host, not path. |
| 21 url::AddStandardScheme("mojo"); |
| 22 } |
| 23 |
| 24 URLResolver::~URLResolver() { |
| 25 } |
| 26 |
| 27 // static |
| 28 std::vector<URLResolver::OriginMapping> URLResolver::GetOriginMappings( |
| 29 const base::CommandLine::StringVector& args) { |
| 30 std::vector<OriginMapping> origin_mappings; |
| 31 const std::string kArgsForSwitches[] = { |
| 32 "-" + std::string(switches::kMapOrigin) + "=", |
| 33 "--" + std::string(switches::kMapOrigin) + "=", |
| 34 }; |
| 35 for (auto& arg : args) { |
| 36 for (size_t i = 0; i < arraysize(kArgsForSwitches); i++) { |
| 37 const std::string& argsfor_switch = kArgsForSwitches[i]; |
| 38 std::string arg_string; |
| 39 #if defined(OS_WIN) |
| 40 arg_string = base::UTF16ToUTF8(arg); |
| 41 #else |
| 42 arg_string = arg; |
| 43 #endif |
| 44 if (arg_string.compare(0, argsfor_switch.size(), argsfor_switch) == 0) { |
| 45 std::string value = |
| 46 arg_string.substr(argsfor_switch.size(), std::string::npos); |
| 47 size_t delim = value.find('='); |
| 48 if (delim <= 0 || delim >= value.size()) |
| 49 continue; |
| 50 origin_mappings.push_back( |
| 51 OriginMapping(value.substr(0, delim), |
| 52 value.substr(delim + 1, std::string::npos))); |
| 53 } |
| 54 } |
| 55 } |
| 56 return origin_mappings; |
| 57 } |
| 58 |
| 59 void URLResolver::AddURLMapping(const GURL& url, const GURL& mapped_url) { |
| 60 url_map_[url] = mapped_url; |
| 61 } |
| 62 |
| 63 void URLResolver::AddOriginMapping(const GURL& origin, const GURL& base_url) { |
| 64 if (!origin.is_valid() || !base_url.is_valid() || |
| 65 origin != origin.GetOrigin()) { |
| 66 // Disallow invalid mappings. |
| 67 LOG(ERROR) << "Invalid origin for mapping: " << origin; |
| 68 return; |
| 69 } |
| 70 // Force both origin and base_url to have trailing slashes. |
| 71 origin_map_[origin] = AddTrailingSlashIfNeeded(base_url); |
| 72 } |
| 73 |
| 74 GURL URLResolver::ApplyMappings(const GURL& url) const { |
| 75 std::string query; |
| 76 GURL mapped_url = GetBaseURLAndQuery(url, &query); |
| 77 for (;;) { |
| 78 const auto& url_it = url_map_.find(mapped_url); |
| 79 if (url_it != url_map_.end()) { |
| 80 mapped_url = url_it->second; |
| 81 continue; |
| 82 } |
| 83 |
| 84 GURL origin = mapped_url.GetOrigin(); |
| 85 const auto& origin_it = origin_map_.find(origin); |
| 86 if (origin_it == origin_map_.end()) |
| 87 break; |
| 88 mapped_url = GURL(origin_it->second.spec() + |
| 89 mapped_url.spec().substr(origin.spec().length())); |
| 90 } |
| 91 |
| 92 if (query.length()) |
| 93 mapped_url = GURL(mapped_url.spec() + query); |
| 94 return mapped_url; |
| 95 } |
| 96 |
| 97 void URLResolver::SetMojoBaseURL(const GURL& mojo_base_url) { |
| 98 DCHECK(mojo_base_url.is_valid()); |
| 99 // Force a trailing slash on the base_url to simplify resolving |
| 100 // relative files and URLs below. |
| 101 mojo_base_url_ = AddTrailingSlashIfNeeded(mojo_base_url); |
| 102 } |
| 103 |
| 104 GURL URLResolver::ResolveMojoURL(const GURL& mojo_url) const { |
| 105 if (mojo_url.scheme() != "mojo") { |
| 106 // The mapping has produced some sort of non-mojo: URL - file:, http:, etc. |
| 107 return mojo_url; |
| 108 } else { |
| 109 // It's still a mojo: URL, use the default mapping scheme. |
| 110 std::string query; |
| 111 GURL base_url = GetBaseURLAndQuery(mojo_url, &query); |
| 112 std::string lib = base_url.host() + ".mojo" + query; |
| 113 return mojo_base_url_.Resolve(lib); |
| 114 } |
| 115 } |
| 116 |
| 117 } // namespace shell |
| 118 } // namespace mojo |
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