AffiliationBackend: Implement the better part of on-demand fetching.

components/password_manager/core/browser/affiliation_utils.h

 // 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.
 
 // This file contains utilities related to working with "facets".
 //
 // A "facet" is defined as the manifestation of a logical application on a given
 // platform. For example, "My Bank" may have released an Android application
 // and a Web application accessible from a browser. These are all facets of the
 // "My Bank" logical application.
@@ skipping 26 matching lines @@
 //      alphabet, with no further escaping. This is normally calculated as:
 //
 //        echo -n -e "$PEM_KEY" |
 //          openssl x509 -outform DER |
 //          openssl sha -sha512 -binary | base64 | tr '+/' '-_'
 //
 
 #ifndef COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_AFFILIATION_UTILS_H_
 #define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_AFFILIATION_UTILS_H_
 
+#include <iosfwd>
 #include <string>
 #include <vector>
 
+#include "base/containers/hash_tables.h"
 #include "base/logging.h"
 #include "base/time/time.h"
 #include "url/url_parse.h"
 
 namespace password_manager {
 
 // Encapsulates a facet URI in canonical form.
 //
 // This is a very light-weight wrapper around an std::string containing the text
 // of the URI, and can be passed around as a value. The main rationale for the
@@ skipping 51 matching lines @@
   // references, provided it is a valid Android facet URI, or the empty string
   // otherwise.
   std::string android_package_name() const;
 
   // Returns the text of the encapsulated canonical URI, which must be valid.
   const std::string& canonical_spec() const {
     DCHECK(is_valid_);
     return canonical_spec_;
   }
 
+  // Returns the text of the encapsulated canonical URI, even if it is invalid.
+  const std::string& potentially_invalid_spec() const {
+    return canonical_spec_;
+  }
+
  private:
   // Internal constructor to be used by the static factory methods.
   FacetURI(const std::string& canonical_spec, bool is_valid);
 
   // Whether |canonical_spec_| contains a valid facet URI in canonical form.
   bool is_valid_;
 
   // The text of the encapsulated canonical URI, valid if and only if
   // |is_valid_| is true.
   std::string canonical_spec_;
@@ skipping 16 matching lines @@
   base::Time last_update_time;
 };
 
 // Returns whether or not equivalence classes |a| and |b| are equal, that is,
 // whether or not they consist of the same set of facets.
 //
 // Note that this will do some sorting, so it can be expensive for large inputs.
 bool AreEquivalenceClassesEqual(const AffiliatedFacets& a,
                                 const AffiliatedFacets& b);
 
+// For logging use only.
+std::ostream& operator<<(std::ostream& os, const FacetURI& facet_uri);
+
 }  // namespace password_manager
 
+// Provide a hash function so that hash_sets and maps can contain FacetURIs.
+namespace BASE_HASH_NAMESPACE {
+
+template <>
+struct hash<password_manager::FacetURI> {
+  size_t operator()(const password_manager::FacetURI& facet_uri) const {
+    return hash<std::string>()(facet_uri.potentially_invalid_spec());
+  }
+};
+
+}  // namespace BASE_HASH_NAMESPACE
+
 #endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_AFFILIATION_UTILS_H_