mirror of
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8ed4a80a4e
nsIURI.originCharset had two use cases:
1) Dealing with the spec-incompliant feature of escapes in the hash
(reference) part of the URL.
2) For UI display of non-UTF-8 URLs.
For hash part handling, we use the document charset instead. For pretty
display of query strings on legacy-encoded pages, we no longer care to them
(see bug 817374 comment 18).
Also, the URL Standard has no concept of "origin charset". This patch
removes nsIURI.originCharset for reducing complexity and spec compliance.
MozReview-Commit-ID: 3tHd0VCWSqF
--HG--
extra : rebase_source : b2caa01f75e5dd26078a7679fd7caa319a65af14
412 lines
14 KiB
C++
412 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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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#ifndef nsStandardURL_h__
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#define nsStandardURL_h__
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#include "nsString.h"
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#include "nsISerializable.h"
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#include "nsIFileURL.h"
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#include "nsIStandardURL.h"
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#include "mozilla/Encoding.h"
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#include "nsIObserver.h"
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#include "nsCOMPtr.h"
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#include "nsURLHelper.h"
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#include "nsIClassInfo.h"
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#include "nsISizeOf.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/LinkedList.h"
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#include "mozilla/MemoryReporting.h"
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#include "nsIIPCSerializableURI.h"
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#include "nsISensitiveInfoHiddenURI.h"
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#include "RustURL.h"
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#ifdef NS_BUILD_REFCNT_LOGGING
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#define DEBUG_DUMP_URLS_AT_SHUTDOWN
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#endif
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class nsIBinaryInputStream;
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class nsIBinaryOutputStream;
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class nsIIDNService;
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class nsIPrefBranch;
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class nsIFile;
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class nsIURLParser;
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namespace mozilla {
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class Encoding;
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namespace net {
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//-----------------------------------------------------------------------------
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// standard URL implementation
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//-----------------------------------------------------------------------------
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class nsStandardURL : public nsIFileURL
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, public nsIStandardURL
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, public nsISerializable
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, public nsIClassInfo
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, public nsISizeOf
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, public nsIIPCSerializableURI
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, public nsISensitiveInfoHiddenURI
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#ifdef DEBUG_DUMP_URLS_AT_SHUTDOWN
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, public LinkedListElement<nsStandardURL>
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#endif
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{
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protected:
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virtual ~nsStandardURL();
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIURI
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NS_DECL_NSIURL
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NS_DECL_NSIFILEURL
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NS_DECL_NSISTANDARDURL
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NS_DECL_NSISERIALIZABLE
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NS_DECL_NSICLASSINFO
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NS_DECL_NSIMUTABLE
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NS_DECL_NSIIPCSERIALIZABLEURI
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NS_DECL_NSISENSITIVEINFOHIDDENURI
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// nsISizeOf
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virtual size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
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virtual size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
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explicit nsStandardURL(bool aSupportsFileURL = false, bool aTrackURL = true);
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static void InitGlobalObjects();
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static void ShutdownGlobalObjects();
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public: /* internal -- HPUX compiler can't handle this being private */
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//
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// location and length of an url segment relative to mSpec
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//
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struct URLSegment
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{
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uint32_t mPos;
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int32_t mLen;
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URLSegment() : mPos(0), mLen(-1) {}
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URLSegment(uint32_t pos, int32_t len) : mPos(pos), mLen(len) {}
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URLSegment(const URLSegment& aCopy) : mPos(aCopy.mPos), mLen(aCopy.mLen) {}
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void Reset() { mPos = 0; mLen = -1; }
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// Merge another segment following this one to it if they're contiguous
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// Assumes we have something like "foo;bar" where this object is 'foo' and right
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// is 'bar'.
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void Merge(const nsCString &spec, const char separator, const URLSegment &right) {
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if (mLen >= 0 &&
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*(spec.get() + mPos + mLen) == separator &&
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mPos + mLen + 1 == right.mPos) {
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mLen += 1 + right.mLen;
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}
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}
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};
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//
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// Pref observer
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//
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class nsPrefObserver final : public nsIObserver
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{
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~nsPrefObserver() {}
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIOBSERVER
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nsPrefObserver() { }
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};
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friend class nsPrefObserver;
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//
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// URL segment encoder : performs charset conversion and URL escaping.
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//
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class nsSegmentEncoder
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{
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public:
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explicit nsSegmentEncoder(const Encoding* encoding = nullptr);
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// Encode the given segment if necessary, and return the length of
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// the encoded segment. The encoded segment is appended to |buf|
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// if and only if encoding is required.
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int32_t EncodeSegmentCount(const char *str,
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const URLSegment &segment,
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int16_t mask,
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nsCString& buf,
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bool& appended,
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uint32_t extraLen = 0);
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// Encode the given string if necessary, and return a reference to
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// the encoded string. Returns a reference to |buf| if encoding
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// is required. Otherwise, a reference to |str| is returned.
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const nsACString& EncodeSegment(const nsACString& str,
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int16_t mask,
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nsCString& buf);
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private:
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const Encoding* mEncoding;
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};
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friend class nsSegmentEncoder;
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static nsresult NormalizeIPv4(const nsACString& host, nsCString& result);
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protected:
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// enum used in a few places to specify how .ref attribute should be handled
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enum RefHandlingEnum {
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eIgnoreRef,
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eHonorRef,
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eReplaceRef
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};
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// Helper to share code between Equals and EqualsExceptRef
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// NOTE: *not* virtual, because no one needs to override this so far...
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nsresult EqualsInternal(nsIURI* unknownOther,
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RefHandlingEnum refHandlingMode,
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bool* result);
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virtual nsStandardURL* StartClone();
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// Helper to share code between Clone methods.
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nsresult CloneInternal(RefHandlingEnum aRefHandlingMode,
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const nsACString& newRef,
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nsIURI** aClone);
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// Helper method that copies member variables from the source StandardURL
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// if copyCached = true, it will also copy mFile and mDisplayHost
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nsresult CopyMembers(nsStandardURL * source, RefHandlingEnum mode,
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const nsACString& newRef,
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bool copyCached = false);
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// Helper for subclass implementation of GetFile(). Subclasses that map
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// URIs to files in a special way should implement this method. It should
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// ensure that our mFile is initialized, if it's possible.
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// returns NS_ERROR_NO_INTERFACE if the url does not map to a file
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virtual nsresult EnsureFile();
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private:
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int32_t Port() { return mPort == -1 ? mDefaultPort : mPort; }
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void ReplacePortInSpec(int32_t aNewPort);
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void Clear();
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void InvalidateCache(bool invalidateCachedFile = true);
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bool ValidIPv6orHostname(const char *host, uint32_t aLen);
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static bool IsValidOfBase(unsigned char c, const uint32_t base);
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nsresult NormalizeIDN(const nsACString& host, nsCString& result);
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nsresult CheckIfHostIsAscii();
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void CoalescePath(netCoalesceFlags coalesceFlag, char *path);
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uint32_t AppendSegmentToBuf(char *, uint32_t, const char *,
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const URLSegment &input, URLSegment &output,
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const nsCString *esc=nullptr,
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bool useEsc = false, int32_t* diff = nullptr);
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uint32_t AppendToBuf(char *, uint32_t, const char *, uint32_t);
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nsresult BuildNormalizedSpec(const char* spec, const Encoding* encoding);
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nsresult SetSpecWithEncoding(const nsACString &input, const Encoding* encoding);
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bool SegmentIs(const URLSegment &s1, const char *val, bool ignoreCase = false);
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bool SegmentIs(const char* spec, const URLSegment &s1, const char *val, bool ignoreCase = false);
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bool SegmentIs(const URLSegment &s1, const char *val, const URLSegment &s2, bool ignoreCase = false);
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int32_t ReplaceSegment(uint32_t pos, uint32_t len, const char *val, uint32_t valLen);
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int32_t ReplaceSegment(uint32_t pos, uint32_t len, const nsACString &val);
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nsresult ParseURL(const char *spec, int32_t specLen);
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nsresult ParsePath(const char *spec, uint32_t pathPos, int32_t pathLen = -1);
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char *AppendToSubstring(uint32_t pos, int32_t len, const char *tail);
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// dependent substring helpers
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const nsDependentCSubstring Segment(uint32_t pos, int32_t len); // see below
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const nsDependentCSubstring Segment(const URLSegment &s) { return Segment(s.mPos, s.mLen); }
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// dependent substring getters
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const nsDependentCSubstring Prepath(); // see below
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const nsDependentCSubstring Scheme() { return Segment(mScheme); }
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const nsDependentCSubstring Userpass(bool includeDelim = false); // see below
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const nsDependentCSubstring Username() { return Segment(mUsername); }
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const nsDependentCSubstring Password() { return Segment(mPassword); }
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const nsDependentCSubstring Hostport(); // see below
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const nsDependentCSubstring Host(); // see below
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const nsDependentCSubstring Path() { return Segment(mPath); }
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const nsDependentCSubstring Filepath() { return Segment(mFilepath); }
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const nsDependentCSubstring Directory() { return Segment(mDirectory); }
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const nsDependentCSubstring Filename(); // see below
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const nsDependentCSubstring Basename() { return Segment(mBasename); }
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const nsDependentCSubstring Extension() { return Segment(mExtension); }
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const nsDependentCSubstring Query() { return Segment(mQuery); }
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const nsDependentCSubstring Ref() { return Segment(mRef); }
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// shift the URLSegments to the right by diff
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void ShiftFromAuthority(int32_t diff);
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void ShiftFromUsername(int32_t diff);
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void ShiftFromPassword(int32_t diff);
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void ShiftFromHost(int32_t diff);
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void ShiftFromPath(int32_t diff);
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void ShiftFromFilepath(int32_t diff);
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void ShiftFromDirectory(int32_t diff);
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void ShiftFromBasename(int32_t diff);
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void ShiftFromExtension(int32_t diff);
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void ShiftFromQuery(int32_t diff);
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void ShiftFromRef(int32_t diff);
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// fastload helper functions
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nsresult ReadSegment(nsIBinaryInputStream *, URLSegment &);
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nsresult WriteSegment(nsIBinaryOutputStream *, const URLSegment &);
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static void PrefsChanged(nsIPrefBranch *prefs, const char *pref);
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void FindHostLimit(nsACString::const_iterator& aStart,
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nsACString::const_iterator& aEnd);
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// mSpec contains the normalized version of the URL spec (UTF-8 encoded).
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nsCString mSpec;
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int32_t mDefaultPort;
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int32_t mPort;
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// url parts (relative to mSpec)
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URLSegment mScheme;
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URLSegment mAuthority;
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URLSegment mUsername;
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URLSegment mPassword;
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URLSegment mHost;
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URLSegment mPath;
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URLSegment mFilepath;
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URLSegment mDirectory;
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URLSegment mBasename;
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URLSegment mExtension;
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URLSegment mQuery;
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URLSegment mRef;
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nsCOMPtr<nsIURLParser> mParser;
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// mFile is protected so subclasses can access it directly
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protected:
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nsCOMPtr<nsIFile> mFile; // cached result for nsIFileURL::GetFile
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private:
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// cached result for nsIURI::GetDisplayHost
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nsCString mDisplayHost;
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enum {
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eEncoding_Unknown,
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eEncoding_ASCII,
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eEncoding_UTF8
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};
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uint32_t mSpecEncoding : 2; // eEncoding_xxx
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uint32_t mURLType : 2; // nsIStandardURL::URLTYPE_xxx
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uint32_t mMutable : 1; // nsIStandardURL::mutable
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uint32_t mSupportsFileURL : 1; // QI to nsIFileURL?
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uint32_t mCheckedIfHostA : 1; // If set to true, it means either that
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// mDisplayHost has a been initialized, or
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// that the hostname is not punycode
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// global objects. don't use COMPtr as its destructor will cause a
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// coredump if we leak it.
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static nsIIDNService *gIDN;
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static const char gHostLimitDigits[];
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static bool gInitialized;
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static bool gPunycodeHost;
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public:
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#ifdef DEBUG_DUMP_URLS_AT_SHUTDOWN
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void PrintSpec() const { printf(" %s\n", mSpec.get()); }
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#endif
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#ifdef MOZ_RUST_URLPARSE
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static Atomic<bool> gRustEnabled;
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RefPtr<RustURL> mRustURL;
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#endif
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};
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#define NS_THIS_STANDARDURL_IMPL_CID \
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{ /* b8e3e97b-1ccd-4b45-af5a-79596770f5d7 */ \
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0xb8e3e97b, \
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0x1ccd, \
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0x4b45, \
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{0xaf, 0x5a, 0x79, 0x59, 0x67, 0x70, 0xf5, 0xd7} \
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}
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//-----------------------------------------------------------------------------
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// Dependent substring getters
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//-----------------------------------------------------------------------------
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inline const nsDependentCSubstring
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nsStandardURL::Segment(uint32_t pos, int32_t len)
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{
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if (len < 0) {
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pos = 0;
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len = 0;
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}
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return Substring(mSpec, pos, uint32_t(len));
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}
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inline const nsDependentCSubstring
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nsStandardURL::Prepath()
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{
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uint32_t len = 0;
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if (mAuthority.mLen >= 0)
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len = mAuthority.mPos + mAuthority.mLen;
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return Substring(mSpec, 0, len);
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}
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inline const nsDependentCSubstring
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nsStandardURL::Userpass(bool includeDelim)
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{
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uint32_t pos=0, len=0;
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// if there is no username, then there can be no password
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if (mUsername.mLen > 0) {
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pos = mUsername.mPos;
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len = mUsername.mLen;
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if (mPassword.mLen >= 0)
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len += (mPassword.mLen + 1);
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if (includeDelim)
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len++;
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}
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return Substring(mSpec, pos, len);
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}
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inline const nsDependentCSubstring
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nsStandardURL::Hostport()
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{
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uint32_t pos=0, len=0;
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if (mAuthority.mLen > 0) {
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pos = mHost.mPos;
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len = mAuthority.mPos + mAuthority.mLen - pos;
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}
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return Substring(mSpec, pos, len);
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}
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inline const nsDependentCSubstring
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nsStandardURL::Host()
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{
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uint32_t pos=0, len=0;
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if (mHost.mLen > 0) {
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pos = mHost.mPos;
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len = mHost.mLen;
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if (mSpec.CharAt(pos) == '[' && mSpec.CharAt(pos + len - 1) == ']') {
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pos++;
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len -= 2;
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}
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}
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return Substring(mSpec, pos, len);
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}
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inline const nsDependentCSubstring
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nsStandardURL::Filename()
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{
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uint32_t pos=0, len=0;
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// if there is no basename, then there can be no extension
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if (mBasename.mLen > 0) {
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pos = mBasename.mPos;
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len = mBasename.mLen;
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if (mExtension.mLen >= 0)
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len += (mExtension.mLen + 1);
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}
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return Substring(mSpec, pos, len);
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}
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} // namespace net
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} // namespace mozilla
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#endif // nsStandardURL_h__
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