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| 1 // Copyright (c) 2011 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 // This is the list of load flags and their values. For the enum values, | |
| 6 // include the file "net/base/load_flags.h". | |
| 7 // | |
| 8 // Here we define the values using a macro LOAD_FLAG, so it can be | |
| 9 // expanded differently in some places (for example, to automatically | |
| 10 // map a load flag value to its symbolic name). | |
| 11 | |
| 12 LOAD_FLAG(NORMAL, 0) | |
| 13 | |
| 14 // This is "normal reload", meaning an if-none-match/if-modified-since query | |
| 15 LOAD_FLAG(VALIDATE_CACHE, 1 << 0) | |
| 16 | |
| 17 // This is "shift-reload", meaning a "pragma: no-cache" end-to-end fetch | |
| 18 LOAD_FLAG(BYPASS_CACHE, 1 << 1) | |
| 19 | |
| 20 // This is a back/forward style navigation where the cached content should | |
| 21 // be preferred over any protocol specific cache validation. | |
| 22 LOAD_FLAG(PREFERRING_CACHE, 1 << 2) | |
| 23 | |
| 24 // This is a navigation that will fail if it cannot serve the requested | |
| 25 // resource from the cache (or some equivalent local store). | |
| 26 LOAD_FLAG(ONLY_FROM_CACHE, 1 << 3) | |
| 27 | |
| 28 // Indicate that if the request fails at the network level in a way that | |
| 29 // indicates the source is unreachable, the request should fail over | |
| 30 // to as if LOAD_PREFERRING_CACHE had been set. | |
| 31 LOAD_FLAG(FROM_CACHE_IF_OFFLINE, 1 << 4) | |
| 32 | |
| 33 // This is a navigation that will not use the cache at all. It does not | |
| 34 // impact the HTTP request headers. | |
| 35 LOAD_FLAG(DISABLE_CACHE, 1 << 5) | |
| 36 | |
| 37 // If present, causes certificate revocation checks to be skipped on secure | |
| 38 // connections. | |
| 39 LOAD_FLAG(DISABLE_CERT_REVOCATION_CHECKING, 1 << 6) | |
| 40 | |
| 41 // This load will not make any changes to cookies, including storing new | |
| 42 // cookies or updating existing ones. | |
| 43 LOAD_FLAG(DO_NOT_SAVE_COOKIES, 1 << 7) | |
| 44 | |
| 45 // Do not resolve proxies. This override is used when downloading PAC files | |
| 46 // to avoid having a circular dependency. | |
| 47 LOAD_FLAG(BYPASS_PROXY, 1 << 8) | |
| 48 | |
| 49 // Indicate this request is for a download, as opposed to viewing. | |
| 50 LOAD_FLAG(IS_DOWNLOAD, 1 << 9) | |
| 51 | |
| 52 // Requires EV certificate verification. | |
| 53 LOAD_FLAG(VERIFY_EV_CERT, 1 << 10) | |
| 54 | |
| 55 // This load will not send any cookies. | |
| 56 LOAD_FLAG(DO_NOT_SEND_COOKIES, 1 << 11) | |
| 57 | |
| 58 // This load will not send authentication data (user name/password) | |
| 59 // to the server (as opposed to the proxy). | |
| 60 LOAD_FLAG(DO_NOT_SEND_AUTH_DATA, 1 << 12) | |
| 61 | |
| 62 // This should only be used for testing (set by HttpNetworkTransaction). | |
| 63 LOAD_FLAG(IGNORE_ALL_CERT_ERRORS, 1 << 13) | |
| 64 | |
| 65 // Indicate that this is a top level frame, so that we don't assume it is a | |
| 66 // subresource and speculatively pre-connect or pre-resolve when a referring | |
| 67 // page is loaded. | |
| 68 LOAD_FLAG(MAIN_FRAME, 1 << 14) | |
| 69 | |
| 70 // Indicate that this is a sub frame, and hence it might have subresources that | |
| 71 // should be speculatively resolved, or even speculatively preconnected. | |
| 72 LOAD_FLAG(SUB_FRAME, 1 << 15) | |
| 73 | |
| 74 // If present, intercept actual request/response headers from network stack | |
| 75 // and report them to renderer. This includes cookies, so the flag is only | |
| 76 // respected if renderer has CanReadRawCookies capability in the security | |
| 77 // policy. | |
| 78 LOAD_FLAG(REPORT_RAW_HEADERS, 1 << 16) | |
| 79 | |
| 80 // Indicates that this load was motivated by the rel=prefetch feature, | |
| 81 // and is (in theory) not intended for the current frame. | |
| 82 LOAD_FLAG(PREFETCH, 1 << 17) | |
| 83 | |
| 84 // Indicates that this is a load that ignores limits and should complete | |
| 85 // immediately. | |
| 86 LOAD_FLAG(IGNORE_LIMITS, 1 << 18) | |
| 87 | |
| 88 // Indicates that the operation is somewhat likely to be due to an | |
| 89 // explicit user action. This can be used as a hint to treat the | |
| 90 // request with higher priority. | |
| 91 LOAD_FLAG(MAYBE_USER_GESTURE, 1 << 19) | |
| 92 | |
| 93 // Indicates that the username:password portion of the URL should not | |
| 94 // be honored, but that other forms of authority may be used. | |
| 95 LOAD_FLAG(DO_NOT_USE_EMBEDDED_IDENTITY, 1 << 20) | |
| 96 | |
| 97 // Send request directly to the origin if the effective proxy is the data | |
| 98 // reduction proxy. | |
| 99 // TODO(rcs): Remove this flag as soon as http://crbug.com/339237 is resolved. | |
| 100 LOAD_FLAG(BYPASS_DATA_REDUCTION_PROXY, 1 << 21) | |
| 101 | |
| 102 // Indicates the the request is an asynchronous revalidation. | |
| 103 LOAD_FLAG(ASYNC_REVALIDATION, 1 << 22) | |
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