mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-30 16:22:00 +00:00
1403 lines
42 KiB
C++
1403 lines
42 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=4 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsURLHelper.h"
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#include "mozilla/Encoding.h"
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#include "mozilla/RangedPtr.h"
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#include "mozilla/TextUtils.h"
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#include <algorithm>
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#include <iterator>
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#include "nsASCIIMask.h"
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#include "nsIFile.h"
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#include "nsIURLParser.h"
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#include "nsCOMPtr.h"
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#include "nsCRT.h"
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#include "nsNetCID.h"
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#include "mozilla/Preferences.h"
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#include "prnetdb.h"
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#include "mozilla/StaticPrefs_network.h"
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#include "mozilla/Tokenizer.h"
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#include "nsEscape.h"
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#include "nsDOMString.h"
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#include "mozilla/net/rust_helper.h"
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#include "mozilla/net/DNS.h"
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using namespace mozilla;
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//----------------------------------------------------------------------------
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// Init/Shutdown
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//----------------------------------------------------------------------------
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static bool gInitialized = false;
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static StaticRefPtr<nsIURLParser> gNoAuthURLParser;
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static StaticRefPtr<nsIURLParser> gAuthURLParser;
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static StaticRefPtr<nsIURLParser> gStdURLParser;
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static void InitGlobals() {
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nsCOMPtr<nsIURLParser> parser;
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parser = do_GetService(NS_NOAUTHURLPARSER_CONTRACTID);
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NS_ASSERTION(parser, "failed getting 'noauth' url parser");
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if (parser) {
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gNoAuthURLParser = parser;
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}
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parser = do_GetService(NS_AUTHURLPARSER_CONTRACTID);
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NS_ASSERTION(parser, "failed getting 'auth' url parser");
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if (parser) {
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gAuthURLParser = parser;
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}
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parser = do_GetService(NS_STDURLPARSER_CONTRACTID);
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NS_ASSERTION(parser, "failed getting 'std' url parser");
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if (parser) {
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gStdURLParser = parser;
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}
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gInitialized = true;
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}
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void net_ShutdownURLHelper() {
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if (gInitialized) {
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gInitialized = false;
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}
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gNoAuthURLParser = nullptr;
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gAuthURLParser = nullptr;
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gStdURLParser = nullptr;
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}
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//----------------------------------------------------------------------------
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// nsIURLParser getters
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//----------------------------------------------------------------------------
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nsIURLParser* net_GetAuthURLParser() {
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if (!gInitialized) InitGlobals();
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return gAuthURLParser;
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}
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nsIURLParser* net_GetNoAuthURLParser() {
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if (!gInitialized) InitGlobals();
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return gNoAuthURLParser;
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}
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nsIURLParser* net_GetStdURLParser() {
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if (!gInitialized) InitGlobals();
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return gStdURLParser;
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}
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//---------------------------------------------------------------------------
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// GetFileFromURLSpec implementations
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//---------------------------------------------------------------------------
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nsresult net_GetURLSpecFromDir(nsIFile* aFile, nsACString& result) {
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nsAutoCString escPath;
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nsresult rv = net_GetURLSpecFromActualFile(aFile, escPath);
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if (NS_FAILED(rv)) return rv;
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if (escPath.Last() != '/') {
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escPath += '/';
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}
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result = escPath;
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return NS_OK;
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}
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nsresult net_GetURLSpecFromFile(nsIFile* aFile, nsACString& result) {
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nsAutoCString escPath;
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nsresult rv = net_GetURLSpecFromActualFile(aFile, escPath);
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if (NS_FAILED(rv)) return rv;
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// if this file references a directory, then we need to ensure that the
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// URL ends with a slash. this is important since it affects the rules
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// for relative URL resolution when this URL is used as a base URL.
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// if the file does not exist, then we make no assumption about its type,
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// and simply leave the URL unmodified.
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if (escPath.Last() != '/') {
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bool dir;
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rv = aFile->IsDirectory(&dir);
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if (NS_SUCCEEDED(rv) && dir) escPath += '/';
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}
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result = escPath;
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return NS_OK;
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}
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//----------------------------------------------------------------------------
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// file:// URL parsing
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//----------------------------------------------------------------------------
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nsresult net_ParseFileURL(const nsACString& inURL, nsACString& outDirectory,
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nsACString& outFileBaseName,
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nsACString& outFileExtension) {
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nsresult rv;
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if (inURL.Length() >
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(uint32_t)StaticPrefs::network_standard_url_max_length()) {
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return NS_ERROR_MALFORMED_URI;
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}
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outDirectory.Truncate();
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outFileBaseName.Truncate();
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outFileExtension.Truncate();
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const nsPromiseFlatCString& flatURL = PromiseFlatCString(inURL);
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const char* url = flatURL.get();
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nsAutoCString scheme;
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rv = net_ExtractURLScheme(flatURL, scheme);
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if (NS_FAILED(rv)) return rv;
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if (!scheme.EqualsLiteral("file")) {
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NS_ERROR("must be a file:// url");
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return NS_ERROR_UNEXPECTED;
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}
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nsIURLParser* parser = net_GetNoAuthURLParser();
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NS_ENSURE_TRUE(parser, NS_ERROR_UNEXPECTED);
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uint32_t pathPos, filepathPos, directoryPos, basenamePos, extensionPos;
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int32_t pathLen, filepathLen, directoryLen, basenameLen, extensionLen;
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// invoke the parser to extract the URL path
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rv = parser->ParseURL(url, flatURL.Length(), nullptr,
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nullptr, // don't care about scheme
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nullptr, nullptr, // don't care about authority
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&pathPos, &pathLen);
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if (NS_FAILED(rv)) return rv;
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// invoke the parser to extract filepath from the path
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rv = parser->ParsePath(url + pathPos, pathLen, &filepathPos, &filepathLen,
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nullptr, nullptr, // don't care about query
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nullptr, nullptr); // don't care about ref
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if (NS_FAILED(rv)) return rv;
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filepathPos += pathPos;
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// invoke the parser to extract the directory and filename from filepath
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rv = parser->ParseFilePath(url + filepathPos, filepathLen, &directoryPos,
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&directoryLen, &basenamePos, &basenameLen,
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&extensionPos, &extensionLen);
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if (NS_FAILED(rv)) return rv;
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if (directoryLen > 0) {
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outDirectory = Substring(inURL, filepathPos + directoryPos, directoryLen);
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}
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if (basenameLen > 0) {
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outFileBaseName = Substring(inURL, filepathPos + basenamePos, basenameLen);
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}
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if (extensionLen > 0) {
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outFileExtension =
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Substring(inURL, filepathPos + extensionPos, extensionLen);
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}
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// since we are using a no-auth url parser, there will never be a host
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// XXX not strictly true... file://localhost/foo/bar.html is a valid URL
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return NS_OK;
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}
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//----------------------------------------------------------------------------
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// path manipulation functions
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//----------------------------------------------------------------------------
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// Replace all /./ with a / while resolving URLs
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// But only till #?
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mozilla::Maybe<mozilla::CompactPair<uint32_t, uint32_t>> net_CoalesceDirs(
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netCoalesceFlags flags, char* path) {
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/* Stolen from the old netlib's mkparse.c.
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*
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* modifies a url of the form /foo/../foo1 -> /foo1
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* and /foo/./foo1 -> /foo/foo1
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* and /foo/foo1/.. -> /foo/
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*/
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char* fwdPtr = path;
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char* urlPtr = path;
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uint32_t traversal = 0;
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uint32_t special_ftp_len = 0;
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MOZ_ASSERT(*path == '/', "We expect the path to begin with /");
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if (*path != '/') {
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return Nothing();
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}
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/* Remember if this url is a special ftp one: */
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if (flags & NET_COALESCE_DOUBLE_SLASH_IS_ROOT) {
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/* some schemes (for example ftp) have the speciality that
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the path can begin // or /%2F to mark the root of the
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servers filesystem, a simple / only marks the root relative
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to the user loging in. We remember the length of the marker */
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if (nsCRT::strncasecmp(path, "/%2F", 4) == 0) {
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special_ftp_len = 4;
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} else if (strncmp(path, "//", 2) == 0) {
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special_ftp_len = 2;
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}
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}
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// replace all %2E, %2e, %2e%2e, %2e%2E, %2E%2e, %2E%2E, etc with . or ..
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// respectively if between two "/"s or "/" and NULL terminator
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constexpr int PERCENT_2E_LENGTH = sizeof("%2e") - 1;
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constexpr uint32_t PERCENT_2E_WITH_PERIOD_LENGTH = PERCENT_2E_LENGTH + 1;
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for (; (*fwdPtr != '\0') && (*fwdPtr != '?') && (*fwdPtr != '#'); ++fwdPtr) {
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// Assuming that we are currently at '/'
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if (*fwdPtr == '/' &&
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nsCRT::strncasecmp(fwdPtr + 1, "%2e", PERCENT_2E_LENGTH) == 0 &&
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(*(fwdPtr + PERCENT_2E_LENGTH + 1) == '\0' ||
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*(fwdPtr + PERCENT_2E_LENGTH + 1) == '/')) {
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*urlPtr++ = '/';
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*urlPtr++ = '.';
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fwdPtr += PERCENT_2E_LENGTH;
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}
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// If the remaining pathname is "%2e%2e" between "/"s, add ".."
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else if (*fwdPtr == '/' &&
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nsCRT::strncasecmp(fwdPtr + 1, "%2e%2e", PERCENT_2E_LENGTH * 2) ==
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0 &&
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(*(fwdPtr + PERCENT_2E_LENGTH * 2 + 1) == '\0' ||
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*(fwdPtr + PERCENT_2E_LENGTH * 2 + 1) == '/')) {
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*urlPtr++ = '/';
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*urlPtr++ = '.';
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*urlPtr++ = '.';
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fwdPtr += PERCENT_2E_LENGTH * 2;
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}
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// If the remaining pathname is "%2e." or ".%2e" between "/"s, add ".."
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else if (*fwdPtr == '/' &&
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(nsCRT::strncasecmp(fwdPtr + 1, "%2e.",
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PERCENT_2E_WITH_PERIOD_LENGTH) == 0 ||
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nsCRT::strncasecmp(fwdPtr + 1, ".%2e",
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PERCENT_2E_WITH_PERIOD_LENGTH) == 0) &&
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(*(fwdPtr + PERCENT_2E_WITH_PERIOD_LENGTH + 1) == '\0' ||
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*(fwdPtr + PERCENT_2E_WITH_PERIOD_LENGTH + 1) == '/')) {
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*urlPtr++ = '/';
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*urlPtr++ = '.';
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*urlPtr++ = '.';
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fwdPtr += PERCENT_2E_WITH_PERIOD_LENGTH;
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} else {
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*urlPtr++ = *fwdPtr;
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}
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}
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// Copy remaining stuff past the #?;
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for (; *fwdPtr != '\0'; ++fwdPtr) {
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*urlPtr++ = *fwdPtr;
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}
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*urlPtr = '\0'; // terminate the url
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// start again, this time for real
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fwdPtr = path;
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urlPtr = path;
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for (; (*fwdPtr != '\0') && (*fwdPtr != '?') && (*fwdPtr != '#'); ++fwdPtr) {
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if (*fwdPtr == '/' && *(fwdPtr + 1) == '.' && *(fwdPtr + 2) == '/') {
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// remove . followed by slash
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++fwdPtr;
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} else if (*fwdPtr == '/' && *(fwdPtr + 1) == '.' && *(fwdPtr + 2) == '.' &&
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(*(fwdPtr + 3) == '/' ||
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*(fwdPtr + 3) == '\0' || // This will take care of
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*(fwdPtr + 3) == '?' || // something like foo/bar/..#sometag
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*(fwdPtr + 3) == '#')) {
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// remove foo/..
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// reverse the urlPtr to the previous slash if possible
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// if url does not allow relative root then drop .. above root
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// otherwise retain them in the path
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if (traversal > 0 || !(flags & NET_COALESCE_ALLOW_RELATIVE_ROOT)) {
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if (urlPtr != path) urlPtr--; // we must be going back at least by one
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for (; *urlPtr != '/' && urlPtr != path; urlPtr--) {
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; // null body
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}
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--traversal; // count back
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// forward the fwdPtr past the ../
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fwdPtr += 2;
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// if we have reached the beginning of the path
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// while searching for the previous / and we remember
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// that it is an url that begins with /%2F then
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// advance urlPtr again by 3 chars because /%2F already
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// marks the root of the path
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if (urlPtr == path && special_ftp_len > 3) {
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++urlPtr;
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++urlPtr;
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++urlPtr;
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}
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// special case if we have reached the end
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// to preserve the last /
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if (*fwdPtr == '.' && *(fwdPtr + 1) == '\0') ++urlPtr;
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} else {
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// there are to much /.. in this path, just copy them instead.
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// forward the urlPtr past the /.. and copying it
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// However if we remember it is an url that starts with
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// /%2F and urlPtr just points at the "F" of "/%2F" then do
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// not overwrite it with the /, just copy .. and move forward
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// urlPtr.
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if (special_ftp_len > 3 && urlPtr == path + special_ftp_len - 1) {
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++urlPtr;
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} else {
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*urlPtr++ = *fwdPtr;
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}
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++fwdPtr;
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*urlPtr++ = *fwdPtr;
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++fwdPtr;
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*urlPtr++ = *fwdPtr;
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}
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} else {
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// count the hierachie, but only if we do not have reached
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// the root of some special urls with a special root marker
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if (*fwdPtr == '/' && *(fwdPtr + 1) != '.' &&
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(special_ftp_len != 2 || *(fwdPtr + 1) != '/')) {
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traversal++;
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}
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// copy the url incrementaly
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*urlPtr++ = *fwdPtr;
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}
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}
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/*
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* Now lets remove trailing . case
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* /foo/foo1/. -> /foo/foo1/
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*/
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if ((urlPtr > (path + 1)) && (*(urlPtr - 1) == '.') &&
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(*(urlPtr - 2) == '/')) {
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urlPtr--;
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}
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// Before we start copying past ?#, we must make sure we don't overwrite
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// the first / character. If fwdPtr is also unchanged, just copy everything
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// (this shouldn't happen unless we could get in here without a leading
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// slash).
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if (urlPtr == path && fwdPtr != path) {
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urlPtr++;
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}
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// Copy remaining stuff past the #?;
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for (; *fwdPtr != '\0'; ++fwdPtr) {
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*urlPtr++ = *fwdPtr;
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}
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*urlPtr = '\0'; // terminate the url
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uint32_t lastSlash = 0;
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uint32_t endOfBasename = 0;
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// find the last slash before # or ?
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// find the end of basename (i.e. hash, query, or end of string)
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for (; (*(path + endOfBasename) != '\0') &&
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(*(path + endOfBasename) != '?') && (*(path + endOfBasename) != '#');
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++endOfBasename) {
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}
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// Now find the last slash starting from the end
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lastSlash = endOfBasename;
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if (lastSlash != 0 && *(path + lastSlash) == '\0') {
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--lastSlash;
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}
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// search the slash
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for (; lastSlash != 0 && *(path + lastSlash) != '/'; --lastSlash) {
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}
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return Some(mozilla::MakeCompactPair(lastSlash, endOfBasename));
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}
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//----------------------------------------------------------------------------
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// scheme fu
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//----------------------------------------------------------------------------
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static bool net_IsValidSchemeChar(const char aChar) {
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return mozilla::net::rust_net_is_valid_scheme_char(aChar);
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}
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/* Extract URI-Scheme if possible */
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nsresult net_ExtractURLScheme(const nsACString& inURI, nsACString& scheme) {
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nsACString::const_iterator start, end;
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inURI.BeginReading(start);
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inURI.EndReading(end);
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// Strip C0 and space from begining
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while (start != end) {
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if ((uint8_t)*start > 0x20) {
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break;
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}
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start++;
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}
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Tokenizer p(Substring(start, end), "\r\n\t");
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p.Record();
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if (!p.CheckChar(IsAsciiAlpha)) {
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// First char must be alpha
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return NS_ERROR_MALFORMED_URI;
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}
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while (p.CheckChar(net_IsValidSchemeChar) || p.CheckWhite()) {
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// Skip valid scheme characters or \r\n\t
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}
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if (!p.CheckChar(':')) {
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return NS_ERROR_MALFORMED_URI;
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}
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p.Claim(scheme);
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scheme.StripTaggedASCII(ASCIIMask::MaskCRLFTab());
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ToLowerCase(scheme);
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return NS_OK;
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}
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bool net_IsValidScheme(const nsACString& scheme) {
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return mozilla::net::rust_net_is_valid_scheme(&scheme);
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}
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bool net_IsAbsoluteURL(const nsACString& uri) {
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nsACString::const_iterator start, end;
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uri.BeginReading(start);
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uri.EndReading(end);
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// Strip C0 and space from begining
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while (start != end) {
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if ((uint8_t)*start > 0x20) {
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break;
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}
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start++;
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}
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Tokenizer p(Substring(start, end), "\r\n\t");
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// First char must be alpha
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if (!p.CheckChar(IsAsciiAlpha)) {
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return false;
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}
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while (p.CheckChar(net_IsValidSchemeChar) || p.CheckWhite()) {
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// Skip valid scheme characters or \r\n\t
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}
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if (!p.CheckChar(':')) {
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return false;
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}
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p.SkipWhites();
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if (!p.CheckChar('/')) {
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return false;
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}
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p.SkipWhites();
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if (p.CheckChar('/')) {
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// aSpec is really absolute. Ignore aBaseURI in this case
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return true;
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}
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return false;
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}
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void net_FilterURIString(const nsACString& input, nsACString& result) {
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result.Truncate();
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const auto* start = input.BeginReading();
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const auto* end = input.EndReading();
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|
// Trim off leading and trailing invalid chars.
|
|
auto charFilter = [](char c) { return static_cast<uint8_t>(c) > 0x20; };
|
|
const auto* newStart = std::find_if(start, end, charFilter);
|
|
const auto* newEnd =
|
|
std::find_if(std::reverse_iterator<decltype(end)>(end),
|
|
std::reverse_iterator<decltype(newStart)>(newStart),
|
|
charFilter)
|
|
.base();
|
|
|
|
// Check if chars need to be stripped.
|
|
bool needsStrip = false;
|
|
const ASCIIMaskArray& mask = ASCIIMask::MaskCRLFTab();
|
|
for (const auto* itr = start; itr != end; ++itr) {
|
|
if (ASCIIMask::IsMasked(mask, *itr)) {
|
|
needsStrip = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Just use the passed in string rather than creating new copies if no
|
|
// changes are necessary.
|
|
if (newStart == start && newEnd == end && !needsStrip) {
|
|
result = input;
|
|
return;
|
|
}
|
|
|
|
result.Assign(Substring(newStart, newEnd));
|
|
if (needsStrip) {
|
|
result.StripTaggedASCII(mask);
|
|
}
|
|
}
|
|
|
|
nsresult net_FilterAndEscapeURI(const nsACString& aInput, uint32_t aFlags,
|
|
const ASCIIMaskArray& aFilterMask,
|
|
nsACString& aResult) {
|
|
aResult.Truncate();
|
|
|
|
const auto* start = aInput.BeginReading();
|
|
const auto* end = aInput.EndReading();
|
|
|
|
// Trim off leading and trailing invalid chars.
|
|
auto charFilter = [](char c) { return static_cast<uint8_t>(c) > 0x20; };
|
|
const auto* newStart = std::find_if(start, end, charFilter);
|
|
const auto* newEnd =
|
|
std::find_if(std::reverse_iterator<decltype(end)>(end),
|
|
std::reverse_iterator<decltype(newStart)>(newStart),
|
|
charFilter)
|
|
.base();
|
|
|
|
return NS_EscapeAndFilterURL(Substring(newStart, newEnd), aFlags,
|
|
&aFilterMask, aResult, fallible);
|
|
}
|
|
|
|
#if defined(XP_WIN)
|
|
bool net_NormalizeFileURL(const nsACString& aURL, nsCString& aResultBuf) {
|
|
bool writing = false;
|
|
|
|
nsACString::const_iterator beginIter, endIter;
|
|
aURL.BeginReading(beginIter);
|
|
aURL.EndReading(endIter);
|
|
|
|
const char *s, *begin = beginIter.get();
|
|
|
|
for (s = begin; s != endIter.get(); ++s) {
|
|
if (*s == '\\') {
|
|
writing = true;
|
|
if (s > begin) aResultBuf.Append(begin, s - begin);
|
|
aResultBuf += '/';
|
|
begin = s + 1;
|
|
}
|
|
if (*s == '#') {
|
|
// Don't normalize any backslashes following the hash.
|
|
s = endIter.get();
|
|
break;
|
|
}
|
|
}
|
|
if (writing && s > begin) aResultBuf.Append(begin, s - begin);
|
|
|
|
return writing;
|
|
}
|
|
#endif
|
|
|
|
//----------------------------------------------------------------------------
|
|
// miscellaneous (i.e., stuff that should really be elsewhere)
|
|
//----------------------------------------------------------------------------
|
|
|
|
static inline void ToLower(char& c) {
|
|
if ((unsigned)(c - 'A') <= (unsigned)('Z' - 'A')) c += 'a' - 'A';
|
|
}
|
|
|
|
void net_ToLowerCase(char* str, uint32_t length) {
|
|
for (char* end = str + length; str < end; ++str) ToLower(*str);
|
|
}
|
|
|
|
void net_ToLowerCase(char* str) {
|
|
for (; *str; ++str) ToLower(*str);
|
|
}
|
|
|
|
char* net_FindCharInSet(const char* iter, const char* stop, const char* set) {
|
|
for (; iter != stop && *iter; ++iter) {
|
|
for (const char* s = set; *s; ++s) {
|
|
if (*iter == *s) return (char*)iter;
|
|
}
|
|
}
|
|
return (char*)iter;
|
|
}
|
|
|
|
char* net_FindCharNotInSet(const char* iter, const char* stop,
|
|
const char* set) {
|
|
repeat:
|
|
for (const char* s = set; *s; ++s) {
|
|
if (*iter == *s) {
|
|
if (++iter == stop) break;
|
|
goto repeat;
|
|
}
|
|
}
|
|
return (char*)iter;
|
|
}
|
|
|
|
char* net_RFindCharNotInSet(const char* stop, const char* iter,
|
|
const char* set) {
|
|
--iter;
|
|
--stop;
|
|
|
|
if (iter == stop) return (char*)iter;
|
|
|
|
repeat:
|
|
for (const char* s = set; *s; ++s) {
|
|
if (*iter == *s) {
|
|
if (--iter == stop) break;
|
|
goto repeat;
|
|
}
|
|
}
|
|
return (char*)iter;
|
|
}
|
|
|
|
#define HTTP_LWS " \t"
|
|
|
|
// Return the index of the closing quote of the string, if any
|
|
static uint32_t net_FindStringEnd(const nsCString& flatStr,
|
|
uint32_t stringStart, char stringDelim) {
|
|
NS_ASSERTION(stringStart < flatStr.Length() &&
|
|
flatStr.CharAt(stringStart) == stringDelim &&
|
|
(stringDelim == '"' || stringDelim == '\''),
|
|
"Invalid stringStart");
|
|
|
|
const char set[] = {stringDelim, '\\', '\0'};
|
|
do {
|
|
// stringStart points to either the start quote or the last
|
|
// escaped char (the char following a '\\')
|
|
|
|
// Write to searchStart here, so that when we get back to the
|
|
// top of the loop right outside this one we search from the
|
|
// right place.
|
|
uint32_t stringEnd = flatStr.FindCharInSet(set, stringStart + 1);
|
|
if (stringEnd == uint32_t(kNotFound)) return flatStr.Length();
|
|
|
|
if (flatStr.CharAt(stringEnd) == '\\') {
|
|
// Hit a backslash-escaped char. Need to skip over it.
|
|
stringStart = stringEnd + 1;
|
|
if (stringStart == flatStr.Length()) return stringStart;
|
|
|
|
// Go back to looking for the next escape or the string end
|
|
continue;
|
|
}
|
|
|
|
return stringEnd;
|
|
|
|
} while (true);
|
|
|
|
MOZ_ASSERT_UNREACHABLE("How did we get here?");
|
|
return flatStr.Length();
|
|
}
|
|
|
|
static uint32_t net_FindMediaDelimiter(const nsCString& flatStr,
|
|
uint32_t searchStart, char delimiter) {
|
|
do {
|
|
// searchStart points to the spot from which we should start looking
|
|
// for the delimiter.
|
|
const char delimStr[] = {delimiter, '"', '\0'};
|
|
uint32_t curDelimPos = flatStr.FindCharInSet(delimStr, searchStart);
|
|
if (curDelimPos == uint32_t(kNotFound)) return flatStr.Length();
|
|
|
|
char ch = flatStr.CharAt(curDelimPos);
|
|
if (ch == delimiter) {
|
|
// Found delimiter
|
|
return curDelimPos;
|
|
}
|
|
|
|
// We hit the start of a quoted string. Look for its end.
|
|
searchStart = net_FindStringEnd(flatStr, curDelimPos, ch);
|
|
if (searchStart == flatStr.Length()) return searchStart;
|
|
|
|
++searchStart;
|
|
|
|
// searchStart now points to the first char after the end of the
|
|
// string, so just go back to the top of the loop and look for
|
|
// |delimiter| again.
|
|
} while (true);
|
|
|
|
MOZ_ASSERT_UNREACHABLE("How did we get here?");
|
|
return flatStr.Length();
|
|
}
|
|
|
|
// aOffset should be added to aCharsetStart and aCharsetEnd if this
|
|
// function sets them.
|
|
static void net_ParseMediaType(const nsACString& aMediaTypeStr,
|
|
nsACString& aContentType,
|
|
nsACString& aContentCharset, int32_t aOffset,
|
|
bool* aHadCharset, int32_t* aCharsetStart,
|
|
int32_t* aCharsetEnd, bool aStrict) {
|
|
const nsCString& flatStr = PromiseFlatCString(aMediaTypeStr);
|
|
const char* start = flatStr.get();
|
|
const char* end = start + flatStr.Length();
|
|
|
|
// Trim LWS leading and trailing whitespace from type.
|
|
const char* type = net_FindCharNotInSet(start, end, HTTP_LWS);
|
|
const char* typeEnd = net_FindCharInSet(type, end, HTTP_LWS ";");
|
|
|
|
const char* charset = "";
|
|
const char* charsetEnd = charset;
|
|
int32_t charsetParamStart = 0;
|
|
int32_t charsetParamEnd = 0;
|
|
|
|
uint32_t consumed = typeEnd - type;
|
|
|
|
// Iterate over parameters
|
|
bool typeHasCharset = false;
|
|
uint32_t paramStart = flatStr.FindChar(';', typeEnd - start);
|
|
if (paramStart != uint32_t(kNotFound)) {
|
|
// We have parameters. Iterate over them.
|
|
uint32_t curParamStart = paramStart + 1;
|
|
do {
|
|
uint32_t curParamEnd =
|
|
net_FindMediaDelimiter(flatStr, curParamStart, ';');
|
|
|
|
const char* paramName = net_FindCharNotInSet(
|
|
start + curParamStart, start + curParamEnd, HTTP_LWS);
|
|
static const char charsetStr[] = "charset=";
|
|
if (nsCRT::strncasecmp(paramName, charsetStr, sizeof(charsetStr) - 1) ==
|
|
0) {
|
|
charset = paramName + sizeof(charsetStr) - 1;
|
|
charsetEnd = start + curParamEnd;
|
|
typeHasCharset = true;
|
|
charsetParamStart = curParamStart - 1;
|
|
charsetParamEnd = curParamEnd;
|
|
}
|
|
|
|
consumed = curParamEnd;
|
|
curParamStart = curParamEnd + 1;
|
|
} while (curParamStart < flatStr.Length());
|
|
}
|
|
|
|
bool charsetNeedsQuotedStringUnescaping = false;
|
|
if (typeHasCharset) {
|
|
// Trim LWS leading and trailing whitespace from charset.
|
|
charset = net_FindCharNotInSet(charset, charsetEnd, HTTP_LWS);
|
|
if (*charset == '"') {
|
|
charsetNeedsQuotedStringUnescaping = true;
|
|
charsetEnd =
|
|
start + net_FindStringEnd(flatStr, charset - start, *charset);
|
|
charset++;
|
|
NS_ASSERTION(charsetEnd >= charset, "Bad charset parsing");
|
|
} else {
|
|
charsetEnd = net_FindCharInSet(charset, charsetEnd, HTTP_LWS ";");
|
|
}
|
|
}
|
|
|
|
// if the server sent "*/*", it is meaningless, so do not store it.
|
|
// also, if type is the same as aContentType, then just update the
|
|
// charset. however, if charset is empty and aContentType hasn't
|
|
// changed, then don't wipe-out an existing aContentCharset. We
|
|
// also want to reject a mime-type if it does not include a slash.
|
|
// some servers give junk after the charset parameter, which may
|
|
// include a comma, so this check makes us a bit more tolerant.
|
|
|
|
if (type != typeEnd && memchr(type, '/', typeEnd - type) != nullptr &&
|
|
(aStrict ? (net_FindCharNotInSet(start + consumed, end, HTTP_LWS) == end)
|
|
: (strncmp(type, "*/*", typeEnd - type) != 0))) {
|
|
// Common case here is that aContentType is empty
|
|
bool eq = !aContentType.IsEmpty() &&
|
|
aContentType.Equals(Substring(type, typeEnd),
|
|
nsCaseInsensitiveCStringComparator);
|
|
if (!eq) {
|
|
aContentType.Assign(type, typeEnd - type);
|
|
ToLowerCase(aContentType);
|
|
}
|
|
|
|
if ((!eq && *aHadCharset) || typeHasCharset) {
|
|
*aHadCharset = true;
|
|
if (charsetNeedsQuotedStringUnescaping) {
|
|
// parameters using the "quoted-string" syntax need
|
|
// backslash-escapes to be unescaped (see RFC 2616 Section 2.2)
|
|
aContentCharset.Truncate();
|
|
for (const char* c = charset; c != charsetEnd; c++) {
|
|
if (*c == '\\' && c + 1 != charsetEnd) {
|
|
// eat escape
|
|
c++;
|
|
}
|
|
aContentCharset.Append(*c);
|
|
}
|
|
} else {
|
|
aContentCharset.Assign(charset, charsetEnd - charset);
|
|
}
|
|
if (typeHasCharset) {
|
|
*aCharsetStart = charsetParamStart + aOffset;
|
|
*aCharsetEnd = charsetParamEnd + aOffset;
|
|
}
|
|
}
|
|
// Only set a new charset position if this is a different type
|
|
// from the last one we had and it doesn't already have a
|
|
// charset param. If this is the same type, we probably want
|
|
// to leave the charset position on its first occurrence.
|
|
if (!eq && !typeHasCharset) {
|
|
int32_t charsetStart = int32_t(paramStart);
|
|
if (charsetStart == kNotFound) charsetStart = flatStr.Length();
|
|
|
|
*aCharsetEnd = *aCharsetStart = charsetStart + aOffset;
|
|
}
|
|
}
|
|
}
|
|
|
|
#undef HTTP_LWS
|
|
|
|
void net_ParseContentType(const nsACString& aHeaderStr,
|
|
nsACString& aContentType, nsACString& aContentCharset,
|
|
bool* aHadCharset) {
|
|
int32_t dummy1, dummy2;
|
|
net_ParseContentType(aHeaderStr, aContentType, aContentCharset, aHadCharset,
|
|
&dummy1, &dummy2);
|
|
}
|
|
|
|
void net_ParseContentType(const nsACString& aHeaderStr,
|
|
nsACString& aContentType, nsACString& aContentCharset,
|
|
bool* aHadCharset, int32_t* aCharsetStart,
|
|
int32_t* aCharsetEnd) {
|
|
//
|
|
// Augmented BNF (from RFC 2616 section 3.7):
|
|
//
|
|
// header-value = media-type *( LWS "," LWS media-type )
|
|
// media-type = type "/" subtype *( LWS ";" LWS parameter )
|
|
// type = token
|
|
// subtype = token
|
|
// parameter = attribute "=" value
|
|
// attribute = token
|
|
// value = token | quoted-string
|
|
//
|
|
//
|
|
// Examples:
|
|
//
|
|
// text/html
|
|
// text/html, text/html
|
|
// text/html,text/html; charset=ISO-8859-1
|
|
// text/html,text/html; charset="ISO-8859-1"
|
|
// text/html;charset=ISO-8859-1, text/html
|
|
// text/html;charset='ISO-8859-1', text/html
|
|
// application/octet-stream
|
|
//
|
|
|
|
*aHadCharset = false;
|
|
const nsCString& flatStr = PromiseFlatCString(aHeaderStr);
|
|
|
|
// iterate over media-types. Note that ',' characters can happen
|
|
// inside quoted strings, so we need to watch out for that.
|
|
uint32_t curTypeStart = 0;
|
|
do {
|
|
// curTypeStart points to the start of the current media-type. We want
|
|
// to look for its end.
|
|
uint32_t curTypeEnd = net_FindMediaDelimiter(flatStr, curTypeStart, ',');
|
|
|
|
// At this point curTypeEnd points to the spot where the media-type
|
|
// starting at curTypeEnd ends. Time to parse that!
|
|
net_ParseMediaType(
|
|
Substring(flatStr, curTypeStart, curTypeEnd - curTypeStart),
|
|
aContentType, aContentCharset, curTypeStart, aHadCharset, aCharsetStart,
|
|
aCharsetEnd, false);
|
|
|
|
// And let's move on to the next media-type
|
|
curTypeStart = curTypeEnd + 1;
|
|
} while (curTypeStart < flatStr.Length());
|
|
}
|
|
|
|
void net_ParseRequestContentType(const nsACString& aHeaderStr,
|
|
nsACString& aContentType,
|
|
nsACString& aContentCharset,
|
|
bool* aHadCharset) {
|
|
//
|
|
// Augmented BNF (from RFC 7231 section 3.1.1.1):
|
|
//
|
|
// media-type = type "/" subtype *( OWS ";" OWS parameter )
|
|
// type = token
|
|
// subtype = token
|
|
// parameter = token "=" ( token / quoted-string )
|
|
//
|
|
// Examples:
|
|
//
|
|
// text/html
|
|
// text/html; charset=ISO-8859-1
|
|
// text/html; charset="ISO-8859-1"
|
|
// application/octet-stream
|
|
//
|
|
|
|
aContentType.Truncate();
|
|
aContentCharset.Truncate();
|
|
*aHadCharset = false;
|
|
const nsCString& flatStr = PromiseFlatCString(aHeaderStr);
|
|
|
|
// At this point curTypeEnd points to the spot where the media-type
|
|
// starting at curTypeEnd ends. Time to parse that!
|
|
nsAutoCString contentType, contentCharset;
|
|
bool hadCharset = false;
|
|
int32_t dummy1, dummy2;
|
|
uint32_t typeEnd = net_FindMediaDelimiter(flatStr, 0, ',');
|
|
if (typeEnd != flatStr.Length()) {
|
|
// We have some stuff left at the end, so this is not a valid
|
|
// request Content-Type header.
|
|
return;
|
|
}
|
|
net_ParseMediaType(flatStr, contentType, contentCharset, 0, &hadCharset,
|
|
&dummy1, &dummy2, true);
|
|
|
|
aContentType = contentType;
|
|
aContentCharset = contentCharset;
|
|
*aHadCharset = hadCharset;
|
|
}
|
|
|
|
bool net_IsValidDNSHost(const nsACString& host) {
|
|
// The host name is limited to 253 ascii characters.
|
|
if (host.Length() > 253) {
|
|
return false;
|
|
}
|
|
|
|
const char* end = host.EndReading();
|
|
// Use explicit whitelists to select which characters we are
|
|
// willing to send to lower-level DNS logic. This is more
|
|
// self-documenting, and can also be slightly faster than the
|
|
// blacklist approach, since DNS names are the common case, and
|
|
// the commonest characters will tend to be near the start of
|
|
// the list.
|
|
|
|
// Whitelist for DNS names (RFC 1035) with extra characters added
|
|
// for pragmatic reasons "$+_"
|
|
// see https://bugzilla.mozilla.org/show_bug.cgi?id=355181#c2
|
|
if (net_FindCharNotInSet(host.BeginReading(), end,
|
|
"abcdefghijklmnopqrstuvwxyz"
|
|
".-0123456789"
|
|
"ABCDEFGHIJKLMNOPQRSTUVWXYZ$+_") == end) {
|
|
return true;
|
|
}
|
|
|
|
// Might be a valid IPv6 link-local address containing a percent sign
|
|
return mozilla::net::HostIsIPLiteral(host);
|
|
}
|
|
|
|
bool net_IsValidIPv4Addr(const nsACString& aAddr) {
|
|
return mozilla::net::rust_net_is_valid_ipv4_addr(&aAddr);
|
|
}
|
|
|
|
bool net_IsValidIPv6Addr(const nsACString& aAddr) {
|
|
return mozilla::net::rust_net_is_valid_ipv6_addr(&aAddr);
|
|
}
|
|
|
|
bool net_GetDefaultStatusTextForCode(uint16_t aCode, nsACString& aOutText) {
|
|
switch (aCode) {
|
|
// start with the most common
|
|
case 200:
|
|
aOutText.AssignLiteral("OK");
|
|
break;
|
|
case 404:
|
|
aOutText.AssignLiteral("Not Found");
|
|
break;
|
|
case 301:
|
|
aOutText.AssignLiteral("Moved Permanently");
|
|
break;
|
|
case 304:
|
|
aOutText.AssignLiteral("Not Modified");
|
|
break;
|
|
case 307:
|
|
aOutText.AssignLiteral("Temporary Redirect");
|
|
break;
|
|
case 500:
|
|
aOutText.AssignLiteral("Internal Server Error");
|
|
break;
|
|
|
|
// also well known
|
|
case 100:
|
|
aOutText.AssignLiteral("Continue");
|
|
break;
|
|
case 101:
|
|
aOutText.AssignLiteral("Switching Protocols");
|
|
break;
|
|
case 201:
|
|
aOutText.AssignLiteral("Created");
|
|
break;
|
|
case 202:
|
|
aOutText.AssignLiteral("Accepted");
|
|
break;
|
|
case 203:
|
|
aOutText.AssignLiteral("Non Authoritative");
|
|
break;
|
|
case 204:
|
|
aOutText.AssignLiteral("No Content");
|
|
break;
|
|
case 205:
|
|
aOutText.AssignLiteral("Reset Content");
|
|
break;
|
|
case 206:
|
|
aOutText.AssignLiteral("Partial Content");
|
|
break;
|
|
case 207:
|
|
aOutText.AssignLiteral("Multi-Status");
|
|
break;
|
|
case 208:
|
|
aOutText.AssignLiteral("Already Reported");
|
|
break;
|
|
case 300:
|
|
aOutText.AssignLiteral("Multiple Choices");
|
|
break;
|
|
case 302:
|
|
aOutText.AssignLiteral("Found");
|
|
break;
|
|
case 303:
|
|
aOutText.AssignLiteral("See Other");
|
|
break;
|
|
case 305:
|
|
aOutText.AssignLiteral("Use Proxy");
|
|
break;
|
|
case 308:
|
|
aOutText.AssignLiteral("Permanent Redirect");
|
|
break;
|
|
case 400:
|
|
aOutText.AssignLiteral("Bad Request");
|
|
break;
|
|
case 401:
|
|
aOutText.AssignLiteral("Unauthorized");
|
|
break;
|
|
case 402:
|
|
aOutText.AssignLiteral("Payment Required");
|
|
break;
|
|
case 403:
|
|
aOutText.AssignLiteral("Forbidden");
|
|
break;
|
|
case 405:
|
|
aOutText.AssignLiteral("Method Not Allowed");
|
|
break;
|
|
case 406:
|
|
aOutText.AssignLiteral("Not Acceptable");
|
|
break;
|
|
case 407:
|
|
aOutText.AssignLiteral("Proxy Authentication Required");
|
|
break;
|
|
case 408:
|
|
aOutText.AssignLiteral("Request Timeout");
|
|
break;
|
|
case 409:
|
|
aOutText.AssignLiteral("Conflict");
|
|
break;
|
|
case 410:
|
|
aOutText.AssignLiteral("Gone");
|
|
break;
|
|
case 411:
|
|
aOutText.AssignLiteral("Length Required");
|
|
break;
|
|
case 412:
|
|
aOutText.AssignLiteral("Precondition Failed");
|
|
break;
|
|
case 413:
|
|
aOutText.AssignLiteral("Request Entity Too Large");
|
|
break;
|
|
case 414:
|
|
aOutText.AssignLiteral("Request URI Too Long");
|
|
break;
|
|
case 415:
|
|
aOutText.AssignLiteral("Unsupported Media Type");
|
|
break;
|
|
case 416:
|
|
aOutText.AssignLiteral("Requested Range Not Satisfiable");
|
|
break;
|
|
case 417:
|
|
aOutText.AssignLiteral("Expectation Failed");
|
|
break;
|
|
case 418:
|
|
aOutText.AssignLiteral("I'm a teapot");
|
|
break;
|
|
case 421:
|
|
aOutText.AssignLiteral("Misdirected Request");
|
|
break;
|
|
case 422:
|
|
aOutText.AssignLiteral("Unprocessable Entity");
|
|
break;
|
|
case 423:
|
|
aOutText.AssignLiteral("Locked");
|
|
break;
|
|
case 424:
|
|
aOutText.AssignLiteral("Failed Dependency");
|
|
break;
|
|
case 425:
|
|
aOutText.AssignLiteral("Too Early");
|
|
break;
|
|
case 426:
|
|
aOutText.AssignLiteral("Upgrade Required");
|
|
break;
|
|
case 428:
|
|
aOutText.AssignLiteral("Precondition Required");
|
|
break;
|
|
case 429:
|
|
aOutText.AssignLiteral("Too Many Requests");
|
|
break;
|
|
case 431:
|
|
aOutText.AssignLiteral("Request Header Fields Too Large");
|
|
break;
|
|
case 451:
|
|
aOutText.AssignLiteral("Unavailable For Legal Reasons");
|
|
break;
|
|
case 501:
|
|
aOutText.AssignLiteral("Not Implemented");
|
|
break;
|
|
case 502:
|
|
aOutText.AssignLiteral("Bad Gateway");
|
|
break;
|
|
case 503:
|
|
aOutText.AssignLiteral("Service Unavailable");
|
|
break;
|
|
case 504:
|
|
aOutText.AssignLiteral("Gateway Timeout");
|
|
break;
|
|
case 505:
|
|
aOutText.AssignLiteral("HTTP Version Unsupported");
|
|
break;
|
|
case 506:
|
|
aOutText.AssignLiteral("Variant Also Negotiates");
|
|
break;
|
|
case 507:
|
|
aOutText.AssignLiteral("Insufficient Storage ");
|
|
break;
|
|
case 508:
|
|
aOutText.AssignLiteral("Loop Detected");
|
|
break;
|
|
case 510:
|
|
aOutText.AssignLiteral("Not Extended");
|
|
break;
|
|
case 511:
|
|
aOutText.AssignLiteral("Network Authentication Required");
|
|
break;
|
|
default:
|
|
aOutText.AssignLiteral("No Reason Phrase");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static auto MakeNameMatcher(const nsACString& aName) {
|
|
return [&aName](const auto& param) { return param.mKey.Equals(aName); };
|
|
}
|
|
|
|
static void AssignMaybeInvalidUTF8String(const nsACString& aSource,
|
|
nsACString& aDest) {
|
|
if (NS_FAILED(UTF_8_ENCODING->DecodeWithoutBOMHandling(aSource, aDest))) {
|
|
MOZ_CRASH("Out of memory when converting URL params.");
|
|
}
|
|
}
|
|
|
|
namespace mozilla {
|
|
|
|
bool URLParams::Has(const nsACString& aName) {
|
|
return std::any_of(mParams.cbegin(), mParams.cend(), MakeNameMatcher(aName));
|
|
}
|
|
|
|
bool URLParams::Has(const nsACString& aName, const nsACString& aValue) {
|
|
return std::any_of(
|
|
mParams.cbegin(), mParams.cend(), [&aName, &aValue](const auto& param) {
|
|
return param.mKey.Equals(aName) && param.mValue.Equals(aValue);
|
|
});
|
|
}
|
|
|
|
void URLParams::Get(const nsACString& aName, nsACString& aRetval) {
|
|
aRetval.SetIsVoid(true);
|
|
|
|
const auto end = mParams.cend();
|
|
const auto it = std::find_if(mParams.cbegin(), end, MakeNameMatcher(aName));
|
|
if (it != end) {
|
|
aRetval.Assign(it->mValue);
|
|
}
|
|
}
|
|
|
|
void URLParams::GetAll(const nsACString& aName, nsTArray<nsCString>& aRetval) {
|
|
aRetval.Clear();
|
|
|
|
for (uint32_t i = 0, len = mParams.Length(); i < len; ++i) {
|
|
if (mParams[i].mKey.Equals(aName)) {
|
|
aRetval.AppendElement(mParams[i].mValue);
|
|
}
|
|
}
|
|
}
|
|
|
|
void URLParams::Append(const nsACString& aName, const nsACString& aValue) {
|
|
Param* param = mParams.AppendElement();
|
|
param->mKey = aName;
|
|
param->mValue = aValue;
|
|
}
|
|
|
|
void URLParams::Set(const nsACString& aName, const nsACString& aValue) {
|
|
Param* param = nullptr;
|
|
for (uint32_t i = 0, len = mParams.Length(); i < len;) {
|
|
if (!mParams[i].mKey.Equals(aName)) {
|
|
++i;
|
|
continue;
|
|
}
|
|
if (!param) {
|
|
param = &mParams[i];
|
|
++i;
|
|
continue;
|
|
}
|
|
// Remove duplicates.
|
|
mParams.RemoveElementAt(i);
|
|
--len;
|
|
}
|
|
|
|
if (!param) {
|
|
param = mParams.AppendElement();
|
|
param->mKey = aName;
|
|
}
|
|
|
|
param->mValue = aValue;
|
|
}
|
|
|
|
void URLParams::Delete(const nsACString& aName) {
|
|
mParams.RemoveElementsBy(
|
|
[&aName](const auto& param) { return param.mKey.Equals(aName); });
|
|
}
|
|
|
|
void URLParams::Delete(const nsACString& aName, const nsACString& aValue) {
|
|
mParams.RemoveElementsBy([&aName, &aValue](const auto& param) {
|
|
return param.mKey.Equals(aName) && param.mValue.Equals(aValue);
|
|
});
|
|
}
|
|
|
|
/* static */
|
|
void URLParams::DecodeString(const nsACString& aInput, nsACString& aOutput) {
|
|
const char* const end = aInput.EndReading();
|
|
for (const char* iter = aInput.BeginReading(); iter != end;) {
|
|
// replace '+' with U+0020
|
|
if (*iter == '+') {
|
|
aOutput.Append(' ');
|
|
++iter;
|
|
continue;
|
|
}
|
|
|
|
// Percent decode algorithm
|
|
if (*iter == '%') {
|
|
const char* const first = iter + 1;
|
|
const char* const second = first + 1;
|
|
|
|
const auto asciiHexDigit = [](char x) {
|
|
return (x >= 0x41 && x <= 0x46) || (x >= 0x61 && x <= 0x66) ||
|
|
(x >= 0x30 && x <= 0x39);
|
|
};
|
|
|
|
const auto hexDigit = [](char x) {
|
|
return x >= 0x30 && x <= 0x39
|
|
? x - 0x30
|
|
: (x >= 0x41 && x <= 0x46 ? x - 0x37 : x - 0x57);
|
|
};
|
|
|
|
if (first != end && second != end && asciiHexDigit(*first) &&
|
|
asciiHexDigit(*second)) {
|
|
aOutput.Append(hexDigit(*first) * 16 + hexDigit(*second));
|
|
iter = second + 1;
|
|
} else {
|
|
aOutput.Append('%');
|
|
++iter;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
aOutput.Append(*iter);
|
|
++iter;
|
|
}
|
|
AssignMaybeInvalidUTF8String(aOutput, aOutput);
|
|
}
|
|
|
|
/* static */
|
|
bool URLParams::ParseNextInternal(const char*& aStart, const char* const aEnd,
|
|
bool aShouldDecode, nsACString* aOutputName,
|
|
nsACString* aOutputValue) {
|
|
nsDependentCSubstring string;
|
|
|
|
const char* const iter = std::find(aStart, aEnd, '&');
|
|
if (iter != aEnd) {
|
|
string.Rebind(aStart, iter);
|
|
aStart = iter + 1;
|
|
} else {
|
|
string.Rebind(aStart, aEnd);
|
|
aStart = aEnd;
|
|
}
|
|
|
|
if (string.IsEmpty()) {
|
|
return false;
|
|
}
|
|
|
|
const auto* const eqStart = string.BeginReading();
|
|
const auto* const eqEnd = string.EndReading();
|
|
const auto* const eqIter = std::find(eqStart, eqEnd, '=');
|
|
|
|
nsDependentCSubstring name;
|
|
nsDependentCSubstring value;
|
|
|
|
if (eqIter != eqEnd) {
|
|
name.Rebind(eqStart, eqIter);
|
|
value.Rebind(eqIter + 1, eqEnd);
|
|
} else {
|
|
name.Rebind(string, 0);
|
|
}
|
|
|
|
if (aShouldDecode) {
|
|
DecodeString(name, *aOutputName);
|
|
DecodeString(value, *aOutputValue);
|
|
return true;
|
|
}
|
|
|
|
AssignMaybeInvalidUTF8String(name, *aOutputName);
|
|
AssignMaybeInvalidUTF8String(value, *aOutputValue);
|
|
return true;
|
|
}
|
|
|
|
/* static */
|
|
bool URLParams::Extract(const nsACString& aInput, const nsACString& aName,
|
|
nsACString& aValue) {
|
|
aValue.SetIsVoid(true);
|
|
return !URLParams::Parse(
|
|
aInput, true,
|
|
[&aName, &aValue](const nsACString& name, nsCString&& value) {
|
|
if (aName == name) {
|
|
aValue = std::move(value);
|
|
return false;
|
|
}
|
|
return true;
|
|
});
|
|
}
|
|
|
|
void URLParams::ParseInput(const nsACString& aInput) {
|
|
// Remove all the existing data before parsing a new input.
|
|
DeleteAll();
|
|
|
|
URLParams::Parse(aInput, true, [this](nsCString&& name, nsCString&& value) {
|
|
mParams.AppendElement(Param{std::move(name), std::move(value)});
|
|
return true;
|
|
});
|
|
}
|
|
|
|
void URLParams::SerializeString(const nsACString& aInput, nsACString& aValue) {
|
|
const unsigned char* p = (const unsigned char*)aInput.BeginReading();
|
|
const unsigned char* end = p + aInput.Length();
|
|
|
|
while (p != end) {
|
|
// ' ' to '+'
|
|
if (*p == 0x20) {
|
|
aValue.Append(0x2B);
|
|
// Percent Encode algorithm
|
|
} else if (*p == 0x2A || *p == 0x2D || *p == 0x2E ||
|
|
(*p >= 0x30 && *p <= 0x39) || (*p >= 0x41 && *p <= 0x5A) ||
|
|
*p == 0x5F || (*p >= 0x61 && *p <= 0x7A)) {
|
|
aValue.Append(*p);
|
|
} else {
|
|
aValue.AppendPrintf("%%%.2X", *p);
|
|
}
|
|
|
|
++p;
|
|
}
|
|
}
|
|
|
|
void URLParams::Serialize(nsACString& aValue, bool aEncode) const {
|
|
aValue.Truncate();
|
|
bool first = true;
|
|
|
|
for (uint32_t i = 0, len = mParams.Length(); i < len; ++i) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
aValue.Append('&');
|
|
}
|
|
|
|
// XXX Actually, it's not necessary to build a new string object. Generally,
|
|
// such cases could just convert each codepoint one-by-one.
|
|
if (aEncode) {
|
|
SerializeString(mParams[i].mKey, aValue);
|
|
aValue.Append('=');
|
|
SerializeString(mParams[i].mValue, aValue);
|
|
} else {
|
|
aValue.Append(mParams[i].mKey);
|
|
aValue.Append('=');
|
|
aValue.Append(mParams[i].mValue);
|
|
}
|
|
}
|
|
}
|
|
|
|
void URLParams::Sort() {
|
|
mParams.StableSort([](const Param& lhs, const Param& rhs) {
|
|
// FIXME(emilio, bug 1888901): The URLSearchParams.sort() spec requires
|
|
// comparing by utf-16 code points... That's a bit unfortunate, maybe we
|
|
// can optimize the string conversions here?
|
|
return Compare(NS_ConvertUTF8toUTF16(lhs.mKey),
|
|
NS_ConvertUTF8toUTF16(rhs.mKey));
|
|
});
|
|
}
|
|
|
|
} // namespace mozilla
|