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Unified Diff: mojo/runner/url_resolver.h

Issue 1343823002: Revert of Move fetching logic out of ApplicationManager, eliminate url mappings. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 3 months ago
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Index: mojo/runner/url_resolver.h
diff --git a/mojo/runner/url_resolver.h b/mojo/runner/url_resolver.h
new file mode 100644
index 0000000000000000000000000000000000000000..b34e854a474de93b989b164e6d2e73729ddc0e7e
--- /dev/null
+++ b/mojo/runner/url_resolver.h
@@ -0,0 +1,81 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MOJO_RUNNER_URL_RESOLVER_H_
+#define MOJO_RUNNER_URL_RESOLVER_H_
+
+#include <map>
+#include <set>
+
+#include "base/basictypes.h"
+#include "base/command_line.h"
+#include "base/files/file_path.h"
+#include "url/gurl.h"
+
+namespace mojo {
+namespace runner {
+
+// This class supports the mapping of URLs to other URLs.
+// It's commonly used with mojo: URL, to provide a physical location URL
+// (i.e. file: or https:) but works with any URL.
+// By default, "mojo:" URLs resolve to a file location, with ".mojo" appended,
+// but that resolution can be customized via the AddURLMapping and
+// AddOriginMapping methods.
+class URLResolver {
+ public:
+ URLResolver();
+ ~URLResolver();
+
+ // Used for the return value of GetOriginMappings().
+ struct OriginMapping {
+ OriginMapping(const std::string& origin, const std::string& base_url)
+ : origin(origin), base_url(base_url) {}
+
+ std::string origin;
+ std::string base_url;
+ };
+
+ // Returns a list of origin mappings based on command line args.
+ // The switch --map-origin can be specified multiple times. Each occurrence
+ // has the format of --map-origin={origin}={base_url}
+ // For example:
+ // --map-origin=http://domokit.org=file:///source/out
+ static std::vector<OriginMapping> GetOriginMappings(
+ const base::CommandLine::StringVector& argv);
+
+ // Add a custom mapping for a particular URL. If |mapped_url| is
+ // itself a mojo URL, then normal resolution rules apply.
+ void AddURLMapping(const GURL& url, const GURL& mapped_url);
+
+ // Add a custom mapping for all URLs rooted at |origin|. An origin is a
+ // combination of URL scheme, host and port.
+ void AddOriginMapping(const GURL& origin, const GURL& base_url);
+
+ // Applies all custom mappings for |url|, returning the last non-mapped url.
+ // For example, if 'a' maps to 'b' and 'b' maps to 'c', calling this with 'a'
+ // returns 'c'.
+ GURL ApplyMappings(const GURL& url) const;
+
+ // If specified, then "mojo:" URLs will be resolved relative to this
+ // URL. That is, the portion after the colon will be appended to
+ // |mojo_base_url| with .mojo appended.
+ void SetMojoBaseURL(const GURL& mojo_base_url);
+
+ // Resolve the given "mojo:" URL to the URL that should be used to fetch the
+ // code for the corresponding Mojo App.
+ GURL ResolveMojoURL(const GURL& mojo_url) const;
+
+ private:
+ using GURLToGURLMap = std::map<GURL, GURL>;
+ GURLToGURLMap url_map_;
+ GURLToGURLMap origin_map_;
+ GURL mojo_base_url_;
+
+ DISALLOW_COPY_AND_ASSIGN(URLResolver);
+};
+
+} // namespace runner
+} // namespace mojo
+
+#endif // MOJO_RUNNER_URL_RESOLVER_H_
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