content/browser/cache_storage/cache_storage.proto

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

syntax = "proto2";

option optimize_for = LITE_RUNTIME;

package content.proto;

message CacheStorageIndex {
  // The Cache message represents stored caches, where cache names are
  // preserved as UTF16 strings to align with WebIDL DOMStrings. This ensures
  // compatibility with names that may contain invalid characters. While the
  // `name` field remains for backward compatibility, all new caches will use
  // `u16string_name` going forward. Older clients that read index files written
  // with UTF8 cache names will not break due to this approach.
  message Cache {
    // Maintained for backward compatibility, but no longer used for new caches.
    required string name = 1;
    optional string cache_dir = 2;
    optional int64 size = 3;
    optional string padding_key = 4 [deprecated = true];
    optional int64 padding = 5;
    optional int32 padding_version = 6;
    optional bytes u16string_name = 7;
  }
  repeated Cache cache = 1;
  optional string origin = 2 [deprecated = true];
  optional string storage_key = 3;
  // Note: The bucket ID is cached here for cases where we need it to
  // build a Cache Storage directory path when a QuotaManagerProxy
  // is not available, but otherwise it's safer to lookup the bucket
  // ID using the storage_key since the value stored here might not
  // always be reliable (for instance, if a crash occurred between the
  // time that a bucket was deleted and instances had their index files
  // deleted on disk).
  optional int64 bucket_id = 4;
  optional bool bucket_is_default = 5;
}

message CacheHeaderMap {
  required string name = 1;
  required string value = 2;
}

message CacheRequest {
  required string method = 1;
  repeated CacheHeaderMap headers = 2;
  optional string fragment = 3;
}

message CacheResponse {
  enum ResponseType {
    BASIC_TYPE = 0;
    CORS_TYPE = 1;
    DEFAULT_TYPE = 2;
    ERROR_TYPE = 3;
    OPAQUE_TYPE = 4;
    OPAQUE_REDIRECT_TYPE = 5;
  }

  required int32 status_code = 1;
  required string status_text = 2;
  required ResponseType response_type = 3;
  repeated CacheHeaderMap headers = 4;
  optional string url = 5 [deprecated = true];
  optional int64 response_time = 6;
  repeated string cors_exposed_header_names = 7;
  repeated string url_list = 8;
  optional bool loaded_with_credentials = 9 [deprecated = true];
  // Mapped to net::HttpResponseInfo::ConnectionInfo via static casting.
  optional int32 connection_info = 10;
  optional string alpn_negotiated_protocol = 11;
  optional bool was_fetched_via_spdy = 12;
  optional string mime_type = 13;
  optional string request_method = 14;
  optional int64 padding = 15;
  optional int64 side_data_padding = 16;
  optional bool request_include_credentials = 17;
}

message CacheMetadata {
  required CacheRequest request = 1;
  required CacheResponse response = 2;
  optional int64 entry_time = 3;
}