1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_FetchUtil_h
#define mozilla_dom_FetchUtil_h
#include "mozilla/dom/File.h"
#include "mozilla/dom/FormData.h"
#include "nsError.h"
#include "nsString.h"
#define WASM_CONTENT_TYPE "application/wasm"
class nsIPrincipal;
class nsIHttpChannel;
namespace mozilla::dom {
class Document;
class InternalRequest;
class WorkerPrivate;
#define FETCH_KEEPALIVE_MAX_SIZE 65536
class FetchUtil final {
private:
static nsCString WasmAltDataType;
FetchUtil() = delete;
public:
/**
* Sets outMethod to a valid HTTP request method string based on an input
* method. Implements checks and normalization as specified by the Fetch
* specification. Returns NS_ERROR_DOM_SECURITY_ERR if the method is invalid.
* Otherwise returns NS_OK and the normalized method via outMethod.
*/
static nsresult GetValidRequestMethod(const nsACString& aMethod,
nsCString& outMethod);
/**
* Extracts an HTTP header from a substring range.
*/
static bool ExtractHeader(nsACString::const_iterator& aStart,
nsACString::const_iterator& aEnd,
nsCString& aHeaderName, nsCString& aHeaderValue,
bool* aWasEmptyHeader);
static nsresult SetRequestReferrer(nsIPrincipal* aPrincipal, Document* aDoc,
nsIHttpChannel* aChannel,
InternalRequest& aRequest);
/**
* The WebAssembly alt data type includes build-id, cpu-id and other relevant
* state that is necessary to ensure the validity of caching machine code and
* metadata in alt data. InitWasmAltDataType() must be called during startup
* before the first fetch(), ensuring that GetWasmAltDataType() is valid.
*/
static inline const nsCString& GetWasmAltDataType() {
MOZ_ASSERT(!WasmAltDataType.IsEmpty());
return WasmAltDataType;
}
static void InitWasmAltDataType();
/**
* Check that the given object is a Response and, if so, stream to the given
* JS consumer. On any failure, this function will report an error on the
* given JSContext before returning false. If executing in a worker, the
* WorkerPrivate must be given.
*/
static bool StreamResponseToJS(JSContext* aCx, JS::Handle<JSObject*> aObj,
JS::MimeType aMimeType,
JS::StreamConsumer* aConsumer,
WorkerPrivate* aMaybeWorker);
/**
* Called by JS to report (i.e., throw) an error that was passed to the
* JS::StreamConsumer::streamError() method on a random stream thread.
* This method is passed by function pointer to the JS engine hence the
* untyped 'size_t' instead of Gecko 'nsresult'.
*/
static void ReportJSStreamError(JSContext* aCx, size_t aErrorCode);
/**
* Implements fetch spec
* https://fetch.spec.whatwg.org/#http-network-or-cache-fetch for
* bounding the keepalive request size
*/
static bool IncrementPendingKeepaliveRequestSize(nsILoadGroup* aLoadGroup,
const uint64_t aBodyLength);
static void DecrementPendingKeepaliveRequestSize(nsILoadGroup* aLoadGroup,
const uint64_t aBodyLength);
/**
* Wrapper to fetch loadgroup from the global object
*/
static nsCOMPtr<nsILoadGroup> GetLoadGroupFromGlobal(
nsIGlobalObject* aGlobal);
};
} // namespace mozilla::dom
#endif
|
