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gecko-dev/netwerk/base/nsStandardURL.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:set ts=4 sw=4 sts=4 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "IPCMessageUtils.h"
#include "nsStandardURL.h"
#include "nsCRT.h"
#include "nsEscape.h"
#include "nsIFile.h"
#include "nsIObjectInputStream.h"
#include "nsIObjectOutputStream.h"
#include "nsIPrefService.h"
#include "nsIPrefBranch.h"
#include "nsIIDNService.h"
#include "mozilla/Logging.h"
#include "nsAutoPtr.h"
#include "nsIURLParser.h"
#include "nsNetCID.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/ipc/URIUtils.h"
#include <algorithm>
#include "mozilla/dom/EncodingUtils.h"
#include "nsContentUtils.h"
using mozilla::dom::EncodingUtils;
using namespace mozilla::ipc;
static NS_DEFINE_CID(kThisImplCID, NS_THIS_STANDARDURL_IMPL_CID);
static NS_DEFINE_CID(kStandardURLCID, NS_STANDARDURL_CID);
nsIIDNService *nsStandardURL::gIDN = nullptr;
bool nsStandardURL::gInitialized = false;
bool nsStandardURL::gEscapeUTF8 = true;
bool nsStandardURL::gAlwaysEncodeInUTF8 = true;
char nsStandardURL::gHostLimitDigits[] = { '/', '\\', '?', '#', 0 };
//
// setenv NSPR_LOG_MODULES nsStandardURL:5
//
static PRLogModuleInfo *gStandardURLLog;
// The Chromium code defines its own LOG macro which we don't want
#undef LOG
#define LOG(args) MOZ_LOG(gStandardURLLog, mozilla::LogLevel::Debug, args)
#undef LOG_ENABLED
#define LOG_ENABLED() MOZ_LOG_TEST(gStandardURLLog, mozilla::LogLevel::Debug)
//----------------------------------------------------------------------------
#define ENSURE_MUTABLE() \
PR_BEGIN_MACRO \
if (!mMutable) { \
NS_WARNING("attempt to modify an immutable nsStandardURL"); \
return NS_ERROR_ABORT; \
} \
PR_END_MACRO
//----------------------------------------------------------------------------
static nsresult
EncodeString(nsIUnicodeEncoder *encoder, const nsAFlatString &str, nsACString &result)
{
nsresult rv;
int32_t len = str.Length();
int32_t maxlen;
rv = encoder->GetMaxLength(str.get(), len, &maxlen);
if (NS_FAILED(rv))
return rv;
char buf[256], *p = buf;
if (uint32_t(maxlen) > sizeof(buf) - 1) {
p = (char *) malloc(maxlen + 1);
if (!p)
return NS_ERROR_OUT_OF_MEMORY;
}
rv = encoder->Convert(str.get(), &len, p, &maxlen);
if (NS_FAILED(rv))
goto end;
if (rv == NS_ERROR_UENC_NOMAPPING) {
NS_WARNING("unicode conversion failed");
rv = NS_ERROR_UNEXPECTED;
goto end;
}
p[maxlen] = 0;
result.Assign(p);
len = sizeof(buf) - 1;
rv = encoder->Finish(buf, &len);
if (NS_FAILED(rv))
goto end;
buf[len] = 0;
result.Append(buf);
end:
encoder->Reset();
if (p != buf)
free(p);
return rv;
}
//----------------------------------------------------------------------------
// nsStandardURL::nsPrefObserver
//----------------------------------------------------------------------------
#define NS_NET_PREF_ESCAPEUTF8 "network.standard-url.escape-utf8"
#define NS_NET_PREF_ALWAYSENCODEINUTF8 "network.standard-url.encode-utf8"
NS_IMPL_ISUPPORTS(nsStandardURL::nsPrefObserver, nsIObserver)
NS_IMETHODIMP nsStandardURL::
nsPrefObserver::Observe(nsISupports *subject,
const char *topic,
const char16_t *data)
{
if (!strcmp(topic, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID)) {
nsCOMPtr<nsIPrefBranch> prefBranch( do_QueryInterface(subject) );
if (prefBranch) {
PrefsChanged(prefBranch, NS_ConvertUTF16toUTF8(data).get());
}
}
return NS_OK;
}
//----------------------------------------------------------------------------
// nsStandardURL::nsSegmentEncoder
//----------------------------------------------------------------------------
nsStandardURL::
nsSegmentEncoder::nsSegmentEncoder(const char *charset)
: mCharset(charset)
{
}
int32_t nsStandardURL::
nsSegmentEncoder::EncodeSegmentCount(const char *str,
const URLSegment &seg,
int16_t mask,
nsAFlatCString &result,
bool &appended,
uint32_t extraLen)
{
// extraLen is characters outside the segment that will be
// added when the segment is not empty (like the @ following
// a username).
appended = false;
if (!str)
return 0;
int32_t len = 0;
if (seg.mLen > 0) {
uint32_t pos = seg.mPos;
len = seg.mLen;
// first honor the origin charset if appropriate. as an optimization,
// only do this if the segment is non-ASCII. Further, if mCharset is
// null or the empty string then the origin charset is UTF-8 and there
// is nothing to do.
nsAutoCString encBuf;
if (mCharset && *mCharset && !nsCRT::IsAscii(str + pos, len)) {
// we have to encode this segment
if (mEncoder || InitUnicodeEncoder()) {
NS_ConvertUTF8toUTF16 ucsBuf(Substring(str + pos, str + pos + len));
if (NS_SUCCEEDED(EncodeString(mEncoder, ucsBuf, encBuf))) {
str = encBuf.get();
pos = 0;
len = encBuf.Length();
}
// else some failure occurred... assume UTF-8 is ok.
}
}
// escape per RFC2396 unless UTF-8 and allowed by preferences
int16_t escapeFlags = (gEscapeUTF8 || mEncoder) ? 0 : esc_OnlyASCII;
uint32_t initLen = result.Length();
// now perform any required escaping
if (NS_EscapeURL(str + pos, len, mask | escapeFlags, result)) {
len = result.Length() - initLen;
appended = true;
}
else if (str == encBuf.get()) {
result += encBuf; // append only!!
len = encBuf.Length();
appended = true;
}
len += extraLen;
}
return len;
}
const nsACString &nsStandardURL::
nsSegmentEncoder::EncodeSegment(const nsASingleFragmentCString &str,
int16_t mask,
nsAFlatCString &result)
{
const char *text;
bool encoded;
EncodeSegmentCount(str.BeginReading(text), URLSegment(0, str.Length()), mask, result, encoded);
if (encoded)
return result;
return str;
}
bool nsStandardURL::
nsSegmentEncoder::InitUnicodeEncoder()
{
NS_ASSERTION(!mEncoder, "Don't call this if we have an encoder already!");
// "replacement" won't survive another label resolution
nsDependentCString label(mCharset);
if (label.EqualsLiteral("replacement")) {
mEncoder = EncodingUtils::EncoderForEncoding(label);
return true;
}
nsAutoCString encoding;
if (!EncodingUtils::FindEncodingForLabelNoReplacement(label, encoding)) {
return false;
}
mEncoder = EncodingUtils::EncoderForEncoding(encoding);
return true;
}
#define GET_SEGMENT_ENCODER_INTERNAL(name, useUTF8) \
nsSegmentEncoder name(useUTF8 ? nullptr : mOriginCharset.get())
#define GET_SEGMENT_ENCODER(name) \
GET_SEGMENT_ENCODER_INTERNAL(name, gAlwaysEncodeInUTF8)
#define GET_QUERY_ENCODER(name) \
GET_SEGMENT_ENCODER_INTERNAL(name, false)
//----------------------------------------------------------------------------
// nsStandardURL <public>
//----------------------------------------------------------------------------
#ifdef DEBUG_DUMP_URLS_AT_SHUTDOWN
static PRCList gAllURLs;
#endif
nsStandardURL::nsStandardURL(bool aSupportsFileURL, bool aTrackURL)
: mDefaultPort(-1)
, mPort(-1)
, mHostA(nullptr)
, mHostEncoding(eEncoding_ASCII)
, mSpecEncoding(eEncoding_Unknown)
, mURLType(URLTYPE_STANDARD)
, mMutable(true)
, mSupportsFileURL(aSupportsFileURL)
{
if (!gStandardURLLog)
gStandardURLLog = PR_NewLogModule("nsStandardURL");
LOG(("Creating nsStandardURL @%p\n", this));
if (!gInitialized) {
gInitialized = true;
InitGlobalObjects();
}
// default parser in case nsIStandardURL::Init is never called
mParser = net_GetStdURLParser();
#ifdef DEBUG_DUMP_URLS_AT_SHUTDOWN
if (NS_IsMainThread()) {
if (aTrackURL) {
PR_APPEND_LINK(&mDebugCList, &gAllURLs);
} else {
PR_INIT_CLIST(&mDebugCList);
}
}
#endif
}
nsStandardURL::~nsStandardURL()
{
LOG(("Destroying nsStandardURL @%p\n", this));
if (mHostA) {
free(mHostA);
}
#ifdef DEBUG_DUMP_URLS_AT_SHUTDOWN
if (NS_IsMainThread()) {
if (!PR_CLIST_IS_EMPTY(&mDebugCList)) {
PR_REMOVE_LINK(&mDebugCList);
}
}
#endif
}
#ifdef DEBUG_DUMP_URLS_AT_SHUTDOWN
struct DumpLeakedURLs {
DumpLeakedURLs() {}
~DumpLeakedURLs();
};
DumpLeakedURLs::~DumpLeakedURLs()
{
MOZ_ASSERT(NS_IsMainThread());
if (!PR_CLIST_IS_EMPTY(&gAllURLs)) {
printf("Leaked URLs:\n");
for (PRCList *l = PR_LIST_HEAD(&gAllURLs); l != &gAllURLs; l = PR_NEXT_LINK(l)) {
nsStandardURL *url = reinterpret_cast<nsStandardURL*>(reinterpret_cast<char*>(l) - offsetof(nsStandardURL, mDebugCList));
url->PrintSpec();
}
}
}
#endif
void
nsStandardURL::InitGlobalObjects()
{
nsCOMPtr<nsIPrefBranch> prefBranch( do_GetService(NS_PREFSERVICE_CONTRACTID) );
if (prefBranch) {
nsCOMPtr<nsIObserver> obs( new nsPrefObserver() );
prefBranch->AddObserver(NS_NET_PREF_ESCAPEUTF8, obs.get(), false);
prefBranch->AddObserver(NS_NET_PREF_ALWAYSENCODEINUTF8, obs.get(), false);
PrefsChanged(prefBranch, nullptr);
}
#ifdef DEBUG_DUMP_URLS_AT_SHUTDOWN
PR_INIT_CLIST(&gAllURLs);
#endif
}
void
nsStandardURL::ShutdownGlobalObjects()
{
NS_IF_RELEASE(gIDN);
#ifdef DEBUG_DUMP_URLS_AT_SHUTDOWN
if (gInitialized) {
// This instanciates a dummy class, and will trigger the class
// destructor when libxul is unloaded. This is equivalent to atexit(),
// but gracefully handles dlclose().
static DumpLeakedURLs d;
}
#endif
}
//----------------------------------------------------------------------------
// nsStandardURL <private>
//----------------------------------------------------------------------------
void
nsStandardURL::Clear()
{
mSpec.Truncate();
mPort = -1;
mScheme.Reset();
mAuthority.Reset();
mUsername.Reset();
mPassword.Reset();
mHost.Reset();
mHostEncoding = eEncoding_ASCII;
mPath.Reset();
mFilepath.Reset();
mDirectory.Reset();
mBasename.Reset();
mExtension.Reset();
mQuery.Reset();
mRef.Reset();
InvalidateCache();
}
void
nsStandardURL::InvalidateCache(bool invalidateCachedFile)
{
if (invalidateCachedFile)
mFile = 0;
if (mHostA) {
free(mHostA);
mHostA = nullptr;
}
mSpecEncoding = eEncoding_Unknown;
}
bool
nsStandardURL::NormalizeIDN(const nsCSubstring &host, nsCString &result)
{
// If host is ACE, then convert to UTF-8. Else, if host is already UTF-8,
// then make sure it is normalized per IDN.
// this function returns true if normalization succeeds.
// NOTE: As a side-effect this function sets mHostEncoding. While it would
// be nice to avoid side-effects in this function, the implementation of
// this function is already somewhat bound to the behavior of the
// callsites. Anyways, this function exists to avoid code duplication, so
// side-effects abound :-/
NS_ASSERTION(mHostEncoding == eEncoding_ASCII, "unexpected default encoding");
bool isASCII;
if (!gIDN) {
nsCOMPtr<nsIIDNService> serv(do_GetService(NS_IDNSERVICE_CONTRACTID));
if (serv) {
NS_ADDREF(gIDN = serv.get());
}
}
if (gIDN &&
NS_SUCCEEDED(gIDN->ConvertToDisplayIDN(host, &isASCII, result))) {
if (!isASCII)
mHostEncoding = eEncoding_UTF8;
return true;
}
result.Truncate();
return false;
}
bool
nsStandardURL::ValidIPv6orHostname(const char *host)
{
if (!host || !*host) {
// Should not be NULL or empty string
return false;
}
int32_t length = strlen(host);
bool openBracket = host[0] == '[';
bool closeBracket = host[length - 1] == ']';
if (openBracket && closeBracket) {
return net_IsValidIPv6Addr(host + 1, length - 2);
}
if (openBracket || closeBracket) {
// Fail if only one of the brackets is present
return false;
}
if (PL_strchr(host, ':')) {
// Hostnames should not contain a colon
return false;
}
return true;
}
void
nsStandardURL::CoalescePath(netCoalesceFlags coalesceFlag, char *path)
{
net_CoalesceDirs(coalesceFlag, path);
int32_t newLen = strlen(path);
if (newLen < mPath.mLen) {
int32_t diff = newLen - mPath.mLen;
mPath.mLen = newLen;
mDirectory.mLen += diff;
mFilepath.mLen += diff;
ShiftFromBasename(diff);
}
}
uint32_t
nsStandardURL::AppendSegmentToBuf(char *buf, uint32_t i, const char *str, URLSegment &seg, const nsCString *escapedStr, bool useEscaped)
{
if (seg.mLen > 0) {
if (useEscaped) {
seg.mLen = escapedStr->Length();
memcpy(buf + i, escapedStr->get(), seg.mLen);
}
else
memcpy(buf + i, str + seg.mPos, seg.mLen);
seg.mPos = i;
i += seg.mLen;
} else {
seg.mPos = i;
}
return i;
}
uint32_t
nsStandardURL::AppendToBuf(char *buf, uint32_t i, const char *str, uint32_t len)
{
memcpy(buf + i, str, len);
return i + len;
}
// basic algorithm:
// 1- escape url segments (for improved GetSpec efficiency)
// 2- allocate spec buffer
// 3- write url segments
// 4- update url segment positions and lengths
nsresult
nsStandardURL::BuildNormalizedSpec(const char *spec)
{
// Assumptions: all member URLSegments must be relative the |spec| argument
// passed to this function.
// buffers for holding escaped url segments (these will remain empty unless
// escaping is required).
nsAutoCString encUsername, encPassword, encHost, encDirectory,
encBasename, encExtension, encQuery, encRef;
bool useEncUsername, useEncPassword, useEncHost = false,
useEncDirectory, useEncBasename, useEncExtension, useEncQuery, useEncRef;
nsAutoCString portbuf;
//
// escape each URL segment, if necessary, and calculate approximate normalized
// spec length.
//
// [scheme://][username[:password]@]host[:port]/path[?query_string][#ref]
uint32_t approxLen = 0;
// the scheme is already ASCII
if (mScheme.mLen > 0)
approxLen += mScheme.mLen + 3; // includes room for "://", which we insert always
// encode URL segments; convert UTF-8 to origin charset and possibly escape.
// results written to encXXX variables only if |spec| is not already in the
// appropriate encoding.
{
GET_SEGMENT_ENCODER(encoder);
GET_QUERY_ENCODER(queryEncoder);
// Items using an extraLen of 1 don't add anything unless mLen > 0
// Username@
approxLen += encoder.EncodeSegmentCount(spec, mUsername, esc_Username, encUsername, useEncUsername, 1);
// :password - we insert the ':' even if there's no actual password if "user:@" was in the spec
if (mPassword.mLen >= 0)
approxLen += 1 + encoder.EncodeSegmentCount(spec, mPassword, esc_Password, encPassword, useEncPassword);
// mHost is handled differently below due to encoding differences
MOZ_ASSERT(mPort >= -1, "Invalid negative mPort");
if (mPort != -1 && mPort != mDefaultPort)
{
// :port
portbuf.AppendInt(mPort);
approxLen += portbuf.Length() + 1;
}
approxLen += 1; // reserve space for possible leading '/' - may not be needed
// Should just use mPath? These are pessimistic, and thus waste space
approxLen += encoder.EncodeSegmentCount(spec, mDirectory, esc_Directory, encDirectory, useEncDirectory, 1);
approxLen += encoder.EncodeSegmentCount(spec, mBasename, esc_FileBaseName, encBasename, useEncBasename);
approxLen += encoder.EncodeSegmentCount(spec, mExtension, esc_FileExtension, encExtension, useEncExtension, 1);
// These next ones *always* add their leading character even if length is 0
// Handles items like "http://#"
// ?query
if (mQuery.mLen >= 0)
approxLen += 1 + queryEncoder.EncodeSegmentCount(spec, mQuery, esc_Query, encQuery, useEncQuery);
// #ref
if (mRef.mLen >= 0) {
if (nsContentUtils::EncodeDecodeURLHash()) {
approxLen += 1 + encoder.EncodeSegmentCount(spec, mRef, esc_Ref,
encRef, useEncRef);
} else {
approxLen += 1 + mRef.mLen;
useEncRef = false;
}
}
}
// do not escape the hostname, if IPv6 address literal, mHost will
// already point to a [ ] delimited IPv6 address literal.
// However, perform Unicode normalization on it, as IDN does.
mHostEncoding = eEncoding_ASCII;
// Note that we don't disallow URLs without a host - file:, etc
if (mHost.mLen > 0) {
const nsCSubstring& tempHost =
Substring(spec + mHost.mPos, spec + mHost.mPos + mHost.mLen);
if (tempHost.FindChar('\0') != kNotFound)
return NS_ERROR_MALFORMED_URI; // null embedded in hostname
if (tempHost.FindChar(' ') != kNotFound)
return NS_ERROR_MALFORMED_URI; // don't allow spaces in the hostname
if ((useEncHost = NormalizeIDN(tempHost, encHost)))
approxLen += encHost.Length();
else
approxLen += mHost.mLen;
}
//
// generate the normalized URL string
//
// approxLen should be correct or 1 high
if (!mSpec.SetLength(approxLen+1, mozilla::fallible)) // buf needs a trailing '\0' below
return NS_ERROR_OUT_OF_MEMORY;
char *buf;
mSpec.BeginWriting(buf);
uint32_t i = 0;
if (mScheme.mLen > 0) {
i = AppendSegmentToBuf(buf, i, spec, mScheme);
net_ToLowerCase(buf + mScheme.mPos, mScheme.mLen);
i = AppendToBuf(buf, i, "://", 3);
}
// record authority starting position
mAuthority.mPos = i;
// append authority
if (mUsername.mLen > 0) {
i = AppendSegmentToBuf(buf, i, spec, mUsername, &encUsername, useEncUsername);
if (mPassword.mLen >= 0) {
buf[i++] = ':';
i = AppendSegmentToBuf(buf, i, spec, mPassword, &encPassword, useEncPassword);
}
buf[i++] = '@';
}
if (mHost.mLen > 0) {
i = AppendSegmentToBuf(buf, i, spec, mHost, &encHost, useEncHost);
net_ToLowerCase(buf + mHost.mPos, mHost.mLen);
MOZ_ASSERT(mPort >= -1, "Invalid negative mPort");
if (mPort != -1 && mPort != mDefaultPort) {
buf[i++] = ':';
// Already formatted while building approxLen
i = AppendToBuf(buf, i, portbuf.get(), portbuf.Length());
}
}
// record authority length
mAuthority.mLen = i - mAuthority.mPos;
// path must always start with a "/"
if (mPath.mLen <= 0) {
LOG(("setting path=/"));
mDirectory.mPos = mFilepath.mPos = mPath.mPos = i;
mDirectory.mLen = mFilepath.mLen = mPath.mLen = 1;
// basename must exist, even if empty (bug 113508)
mBasename.mPos = i+1;
mBasename.mLen = 0;
buf[i++] = '/';
}
else {
uint32_t leadingSlash = 0;
if (spec[mPath.mPos] != '/') {
LOG(("adding leading slash to path\n"));
leadingSlash = 1;
buf[i++] = '/';
// basename must exist, even if empty (bugs 113508, 429347)
if (mBasename.mLen == -1) {
mBasename.mPos = i;
mBasename.mLen = 0;
}
}
// record corrected (file)path starting position
mPath.mPos = mFilepath.mPos = i - leadingSlash;
i = AppendSegmentToBuf(buf, i, spec, mDirectory, &encDirectory, useEncDirectory);
// the directory must end with a '/'
if (buf[i-1] != '/') {
buf[i++] = '/';
mDirectory.mLen++;
}
i = AppendSegmentToBuf(buf, i, spec, mBasename, &encBasename, useEncBasename);
// make corrections to directory segment if leadingSlash
if (leadingSlash) {
mDirectory.mPos = mPath.mPos;
if (mDirectory.mLen >= 0)
mDirectory.mLen += leadingSlash;
else
mDirectory.mLen = 1;
}
if (mExtension.mLen >= 0) {
buf[i++] = '.';
i = AppendSegmentToBuf(buf, i, spec, mExtension, &encExtension, useEncExtension);
}
// calculate corrected filepath length
mFilepath.mLen = i - mFilepath.mPos;
if (mQuery.mLen >= 0) {
buf[i++] = '?';
i = AppendSegmentToBuf(buf, i, spec, mQuery, &encQuery, useEncQuery);
}
if (mRef.mLen >= 0) {
buf[i++] = '#';
i = AppendSegmentToBuf(buf, i, spec, mRef, &encRef, useEncRef);
}
// calculate corrected path length
mPath.mLen = i - mPath.mPos;
}
buf[i] = '\0';
if (mDirectory.mLen > 1) {
netCoalesceFlags coalesceFlag = NET_COALESCE_NORMAL;
if (SegmentIs(buf,mScheme,"ftp")) {
coalesceFlag = (netCoalesceFlags) (coalesceFlag
| NET_COALESCE_ALLOW_RELATIVE_ROOT
| NET_COALESCE_DOUBLE_SLASH_IS_ROOT);
}
CoalescePath(coalesceFlag, buf + mDirectory.mPos);
}
mSpec.SetLength(strlen(buf));
NS_ASSERTION(mSpec.Length() <= approxLen, "We've overflowed the mSpec buffer!");
return NS_OK;
}
bool
nsStandardURL::SegmentIs(const URLSegment &seg, const char *val, bool ignoreCase)
{
// one or both may be null
if (!val || mSpec.IsEmpty())
return (!val && (mSpec.IsEmpty() || seg.mLen < 0));
if (seg.mLen < 0)
return false;
// if the first |seg.mLen| chars of |val| match, then |val| must
// also be null terminated at |seg.mLen|.
if (ignoreCase)
return !PL_strncasecmp(mSpec.get() + seg.mPos, val, seg.mLen)
&& (val[seg.mLen] == '\0');
else
return !strncmp(mSpec.get() + seg.mPos, val, seg.mLen)
&& (val[seg.mLen] == '\0');
}
bool
nsStandardURL::SegmentIs(const char* spec, const URLSegment &seg, const char *val, bool ignoreCase)
{
// one or both may be null
if (!val || !spec)
return (!val && (!spec || seg.mLen < 0));
if (seg.mLen < 0)
return false;
// if the first |seg.mLen| chars of |val| match, then |val| must
// also be null terminated at |seg.mLen|.
if (ignoreCase)
return !PL_strncasecmp(spec + seg.mPos, val, seg.mLen)
&& (val[seg.mLen] == '\0');
else
return !strncmp(spec + seg.mPos, val, seg.mLen)
&& (val[seg.mLen] == '\0');
}
bool
nsStandardURL::SegmentIs(const URLSegment &seg1, const char *val, const URLSegment &seg2, bool ignoreCase)
{
if (seg1.mLen != seg2.mLen)
return false;
if (seg1.mLen == -1 || (!val && mSpec.IsEmpty()))
return true; // both are empty
if (!val)
return false;
if (ignoreCase)
return !PL_strncasecmp(mSpec.get() + seg1.mPos, val + seg2.mPos, seg1.mLen);
else
return !strncmp(mSpec.get() + seg1.mPos, val + seg2.mPos, seg1.mLen);
}
int32_t
nsStandardURL::ReplaceSegment(uint32_t pos, uint32_t len, const char *val, uint32_t valLen)
{
if (val && valLen) {
if (len == 0)
mSpec.Insert(val, pos, valLen);
else
mSpec.Replace(pos, len, nsDependentCString(val, valLen));
return valLen - len;
}
// else remove the specified segment
mSpec.Cut(pos, len);
return -int32_t(len);
}
int32_t
nsStandardURL::ReplaceSegment(uint32_t pos, uint32_t len, const nsACString &val)
{
if (len == 0)
mSpec.Insert(val, pos);
else
mSpec.Replace(pos, len, val);
return val.Length() - len;
}
nsresult
nsStandardURL::ParseURL(const char *spec, int32_t specLen)
{
nsresult rv;
if (specLen > net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
//
// parse given URL string
//
rv = mParser->ParseURL(spec, specLen,
&mScheme.mPos, &mScheme.mLen,
&mAuthority.mPos, &mAuthority.mLen,
&mPath.mPos, &mPath.mLen);
if (NS_FAILED(rv)) return rv;
#ifdef DEBUG
if (mScheme.mLen <= 0) {
printf("spec=%s\n", spec);
NS_WARNING("malformed url: no scheme");
}
#endif
if (mAuthority.mLen > 0) {
rv = mParser->ParseAuthority(spec + mAuthority.mPos, mAuthority.mLen,
&mUsername.mPos, &mUsername.mLen,
&mPassword.mPos, &mPassword.mLen,
&mHost.mPos, &mHost.mLen,
&mPort);
if (NS_FAILED(rv)) return rv;
// Don't allow mPort to be set to this URI's default port
if (mPort == mDefaultPort)
mPort = -1;
mUsername.mPos += mAuthority.mPos;
mPassword.mPos += mAuthority.mPos;
mHost.mPos += mAuthority.mPos;
}
if (mPath.mLen > 0)
rv = ParsePath(spec, mPath.mPos, mPath.mLen);
return rv;
}
nsresult
nsStandardURL::ParsePath(const char *spec, uint32_t pathPos, int32_t pathLen)
{
LOG(("ParsePath: %s pathpos %d len %d\n",spec,pathPos,pathLen));
if (pathLen > net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
nsresult rv = mParser->ParsePath(spec + pathPos, pathLen,
&mFilepath.mPos, &mFilepath.mLen,
&mQuery.mPos, &mQuery.mLen,
&mRef.mPos, &mRef.mLen);
if (NS_FAILED(rv)) return rv;
mFilepath.mPos += pathPos;
mQuery.mPos += pathPos;
mRef.mPos += pathPos;
if (mFilepath.mLen > 0) {
rv = mParser->ParseFilePath(spec + mFilepath.mPos, mFilepath.mLen,
&mDirectory.mPos, &mDirectory.mLen,
&mBasename.mPos, &mBasename.mLen,
&mExtension.mPos, &mExtension.mLen);
if (NS_FAILED(rv)) return rv;
mDirectory.mPos += mFilepath.mPos;
mBasename.mPos += mFilepath.mPos;
mExtension.mPos += mFilepath.mPos;
}
return NS_OK;
}
char *
nsStandardURL::AppendToSubstring(uint32_t pos,
int32_t len,
const char *tail)
{
// Verify pos and length are within boundaries
if (pos > mSpec.Length())
return nullptr;
if (len < 0)
return nullptr;
if ((uint32_t)len > (mSpec.Length() - pos))
return nullptr;
if (!tail)
return nullptr;
uint32_t tailLen = strlen(tail);
// Check for int overflow for proposed length of combined string
if (UINT32_MAX - ((uint32_t)len + 1) < tailLen)
return nullptr;
char *result = (char *) moz_xmalloc(len + tailLen + 1);
if (result) {
memcpy(result, mSpec.get() + pos, len);
memcpy(result + len, tail, tailLen);
result[len + tailLen] = '\0';
}
return result;
}
nsresult
nsStandardURL::ReadSegment(nsIBinaryInputStream *stream, URLSegment &seg)
{
nsresult rv;
rv = stream->Read32(&seg.mPos);
if (NS_FAILED(rv)) return rv;
rv = stream->Read32((uint32_t *) &seg.mLen);
if (NS_FAILED(rv)) return rv;
return NS_OK;
}
nsresult
nsStandardURL::WriteSegment(nsIBinaryOutputStream *stream, const URLSegment &seg)
{
nsresult rv;
rv = stream->Write32(seg.mPos);
if (NS_FAILED(rv)) return rv;
rv = stream->Write32(uint32_t(seg.mLen));
if (NS_FAILED(rv)) return rv;
return NS_OK;
}
/* static */ void
nsStandardURL::PrefsChanged(nsIPrefBranch *prefs, const char *pref)
{
bool val;
LOG(("nsStandardURL::PrefsChanged [pref=%s]\n", pref));
#define PREF_CHANGED(p) ((pref == nullptr) || !strcmp(pref, p))
#define GOT_PREF(p, b) (NS_SUCCEEDED(prefs->GetBoolPref(p, &b)))
if (PREF_CHANGED(NS_NET_PREF_ESCAPEUTF8)) {
if (GOT_PREF(NS_NET_PREF_ESCAPEUTF8, val))
gEscapeUTF8 = val;
LOG(("escape UTF-8 %s\n", gEscapeUTF8 ? "enabled" : "disabled"));
}
if (PREF_CHANGED(NS_NET_PREF_ALWAYSENCODEINUTF8)) {
if (GOT_PREF(NS_NET_PREF_ALWAYSENCODEINUTF8, val))
gAlwaysEncodeInUTF8 = val;
LOG(("encode in UTF-8 %s\n", gAlwaysEncodeInUTF8 ? "enabled" : "disabled"));
}
#undef PREF_CHANGED
#undef GOT_PREF
}
//----------------------------------------------------------------------------
// nsStandardURL::nsISupports
//----------------------------------------------------------------------------
NS_IMPL_ADDREF(nsStandardURL)
NS_IMPL_RELEASE(nsStandardURL)
NS_INTERFACE_MAP_BEGIN(nsStandardURL)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStandardURL)
NS_INTERFACE_MAP_ENTRY(nsIURI)
NS_INTERFACE_MAP_ENTRY(nsIURL)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIFileURL, mSupportsFileURL)
NS_INTERFACE_MAP_ENTRY(nsIStandardURL)
NS_INTERFACE_MAP_ENTRY(nsISerializable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY(nsIMutable)
NS_INTERFACE_MAP_ENTRY(nsIIPCSerializableURI)
// see nsStandardURL::Equals
if (aIID.Equals(kThisImplCID))
foundInterface = static_cast<nsIURI *>(this);
else
NS_INTERFACE_MAP_ENTRY(nsISizeOf)
NS_INTERFACE_MAP_END
//----------------------------------------------------------------------------
// nsStandardURL::nsIURI
//----------------------------------------------------------------------------
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetSpec(nsACString &result)
{
result = mSpec;
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetSpecIgnoringRef(nsACString &result)
{
// URI without ref is 0 to one char before ref
if (mRef.mLen >= 0) {
URLSegment noRef(0, mRef.mPos - 1);
result = Segment(noRef);
} else {
result = mSpec;
}
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetPrePath(nsACString &result)
{
result = Prepath();
return NS_OK;
}
// result is strictly US-ASCII
NS_IMETHODIMP
nsStandardURL::GetScheme(nsACString &result)
{
result = Scheme();
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetUserPass(nsACString &result)
{
result = Userpass();
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetUsername(nsACString &result)
{
result = Username();
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetPassword(nsACString &result)
{
result = Password();
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetHostPort(nsACString &result)
{
result = Hostport();
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetHost(nsACString &result)
{
result = Host();
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetPort(int32_t *result)
{
*result = mPort;
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetPath(nsACString &result)
{
result = Path();
return NS_OK;
}
// result is ASCII
NS_IMETHODIMP
nsStandardURL::GetAsciiSpec(nsACString &result)
{
if (mSpecEncoding == eEncoding_Unknown) {
if (IsASCII(mSpec))
mSpecEncoding = eEncoding_ASCII;
else
mSpecEncoding = eEncoding_UTF8;
}
if (mSpecEncoding == eEncoding_ASCII) {
result = mSpec;
return NS_OK;
}
// try to guess the capacity required for result...
result.SetCapacity(mSpec.Length() + std::min<uint32_t>(32, mSpec.Length()/10));
result = Substring(mSpec, 0, mScheme.mLen + 3);
NS_EscapeURL(Userpass(true), esc_OnlyNonASCII | esc_AlwaysCopy, result);
// get escaped host
nsAutoCString escHostport;
if (mHost.mLen > 0) {
// this doesn't fail
(void) GetAsciiHost(escHostport);
// escHostport = "hostA" + ":port"
uint32_t pos = mHost.mPos + mHost.mLen;
if (pos < mPath.mPos)
escHostport += Substring(mSpec, pos, mPath.mPos - pos);
}
result += escHostport;
NS_EscapeURL(Path(), esc_OnlyNonASCII | esc_AlwaysCopy, result);
return NS_OK;
}
// result is ASCII
NS_IMETHODIMP
nsStandardURL::GetAsciiHost(nsACString &result)
{
if (mHostEncoding == eEncoding_ASCII) {
result = Host();
return NS_OK;
}
// perhaps we have it cached...
if (mHostA) {
result = mHostA;
return NS_OK;
}
if (gIDN) {
nsresult rv;
rv = gIDN->ConvertUTF8toACE(Host(), result);
if (NS_SUCCEEDED(rv)) {
mHostA = ToNewCString(result);
return NS_OK;
}
NS_WARNING("nsIDNService::ConvertUTF8toACE failed");
}
// something went wrong... guess all we can do is URL escape :-/
NS_EscapeURL(Host(), esc_OnlyNonASCII | esc_AlwaysCopy, result);
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetOriginCharset(nsACString &result)
{
if (mOriginCharset.IsEmpty())
result.AssignLiteral("UTF-8");
else
result = mOriginCharset;
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetSpec(const nsACString &input)
{
ENSURE_MUTABLE();
const nsPromiseFlatCString &flat = PromiseFlatCString(input);
const char *spec = flat.get();
int32_t specLength = flat.Length();
LOG(("nsStandardURL::SetSpec [spec=%s]\n", spec));
if (!spec || !*spec)
return NS_ERROR_MALFORMED_URI;
if (input.Length() > (uint32_t) net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
int32_t refPos = input.FindChar('#');
if (refPos != kNotFound) {
const nsCSubstring& sub = Substring(input, refPos, input.Length());
nsresult rv = CheckRefCharacters(sub);
if (NS_FAILED(rv)) {
return rv;
}
}
// Make a backup of the curent URL
nsStandardURL prevURL(false,false);
prevURL.CopyMembers(this, eHonorRef);
Clear();
// filter out unexpected chars "\r\n\t" if necessary
nsAutoCString buf1;
if (net_FilterURIString(spec, buf1)) {
spec = buf1.get();
specLength = buf1.Length();
}
// parse the given URL...
nsresult rv = ParseURL(spec, specLength);
if (NS_SUCCEEDED(rv)) {
// finally, use the URLSegment member variables to build a normalized
// copy of |spec|
rv = BuildNormalizedSpec(spec);
}
if (NS_FAILED(rv)) {
Clear();
// If parsing the spec has failed, restore the old URL
// so we don't end up with an empty URL.
CopyMembers(&prevURL, eHonorRef);
return rv;
}
if (LOG_ENABLED()) {
LOG((" spec = %s\n", mSpec.get()));
LOG((" port = %d\n", mPort));
LOG((" scheme = (%u,%d)\n", mScheme.mPos, mScheme.mLen));
LOG((" authority = (%u,%d)\n", mAuthority.mPos, mAuthority.mLen));
LOG((" username = (%u,%d)\n", mUsername.mPos, mUsername.mLen));
LOG((" password = (%u,%d)\n", mPassword.mPos, mPassword.mLen));
LOG((" hostname = (%u,%d)\n", mHost.mPos, mHost.mLen));
LOG((" path = (%u,%d)\n", mPath.mPos, mPath.mLen));
LOG((" filepath = (%u,%d)\n", mFilepath.mPos, mFilepath.mLen));
LOG((" directory = (%u,%d)\n", mDirectory.mPos, mDirectory.mLen));
LOG((" basename = (%u,%d)\n", mBasename.mPos, mBasename.mLen));
LOG((" extension = (%u,%d)\n", mExtension.mPos, mExtension.mLen));
LOG((" query = (%u,%d)\n", mQuery.mPos, mQuery.mLen));
LOG((" ref = (%u,%d)\n", mRef.mPos, mRef.mLen));
}
return rv;
}
NS_IMETHODIMP
nsStandardURL::SetScheme(const nsACString &input)
{
ENSURE_MUTABLE();
const nsPromiseFlatCString &scheme = PromiseFlatCString(input);
LOG(("nsStandardURL::SetScheme [scheme=%s]\n", scheme.get()));
if (scheme.IsEmpty()) {
NS_WARNING("cannot remove the scheme from an url");
return NS_ERROR_UNEXPECTED;
}
if (mScheme.mLen < 0) {
NS_WARNING("uninitialized");
return NS_ERROR_NOT_INITIALIZED;
}
if (!net_IsValidScheme(scheme)) {
NS_WARNING("the given url scheme contains invalid characters");
return NS_ERROR_UNEXPECTED;
}
InvalidateCache();
int32_t shift = ReplaceSegment(mScheme.mPos, mScheme.mLen, scheme);
if (shift) {
mScheme.mLen = scheme.Length();
ShiftFromAuthority(shift);
}
// ensure new scheme is lowercase
//
// XXX the string code unfortunately doesn't provide a ToLowerCase
// that operates on a substring.
net_ToLowerCase((char *) mSpec.get(), mScheme.mLen);
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetUserPass(const nsACString &input)
{
ENSURE_MUTABLE();
const nsPromiseFlatCString &userpass = PromiseFlatCString(input);
LOG(("nsStandardURL::SetUserPass [userpass=%s]\n", userpass.get()));
if (mURLType == URLTYPE_NO_AUTHORITY) {
if (userpass.IsEmpty())
return NS_OK;
NS_WARNING("cannot set user:pass on no-auth url");
return NS_ERROR_UNEXPECTED;
}
if (mAuthority.mLen < 0) {
NS_WARNING("uninitialized");
return NS_ERROR_NOT_INITIALIZED;
}
InvalidateCache();
if (userpass.IsEmpty()) {
// remove user:pass
if (mUsername.mLen > 0) {
if (mPassword.mLen > 0)
mUsername.mLen += (mPassword.mLen + 1);
mUsername.mLen++;
mSpec.Cut(mUsername.mPos, mUsername.mLen);
mAuthority.mLen -= mUsername.mLen;
ShiftFromHost(-mUsername.mLen);
mUsername.mLen = -1;
mPassword.mLen = -1;
}
return NS_OK;
}
NS_ASSERTION(mHost.mLen >= 0, "uninitialized");
nsresult rv;
uint32_t usernamePos, passwordPos;
int32_t usernameLen, passwordLen;
rv = mParser->ParseUserInfo(userpass.get(), userpass.Length(),
&usernamePos, &usernameLen,
&passwordPos, &passwordLen);
if (NS_FAILED(rv)) return rv;
// build new user:pass in |buf|
nsAutoCString buf;
if (usernameLen > 0) {
GET_SEGMENT_ENCODER(encoder);
bool ignoredOut;
usernameLen = encoder.EncodeSegmentCount(userpass.get(),
URLSegment(usernamePos,
usernameLen),
esc_Username | esc_AlwaysCopy,
buf, ignoredOut);
if (passwordLen >= 0) {
buf.Append(':');
passwordLen = encoder.EncodeSegmentCount(userpass.get(),
URLSegment(passwordPos,
passwordLen),
esc_Password |
esc_AlwaysCopy, buf,
ignoredOut);
}
if (mUsername.mLen < 0)
buf.Append('@');
}
uint32_t shift = 0;
if (mUsername.mLen < 0) {
// no existing user:pass
if (!buf.IsEmpty()) {
mSpec.Insert(buf, mHost.mPos);
mUsername.mPos = mHost.mPos;
shift = buf.Length();
}
}
else {
// replace existing user:pass
uint32_t userpassLen = mUsername.mLen;
if (mPassword.mLen >= 0)
userpassLen += (mPassword.mLen + 1);
mSpec.Replace(mUsername.mPos, userpassLen, buf);
shift = buf.Length() - userpassLen;
}
if (shift) {
ShiftFromHost(shift);
mAuthority.mLen += shift;
}
// update positions and lengths
mUsername.mLen = usernameLen;
mPassword.mLen = passwordLen;
if (passwordLen)
mPassword.mPos = mUsername.mPos + mUsername.mLen + 1;
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetUsername(const nsACString &input)
{
ENSURE_MUTABLE();
const nsPromiseFlatCString &username = PromiseFlatCString(input);
LOG(("nsStandardURL::SetUsername [username=%s]\n", username.get()));
if (mURLType == URLTYPE_NO_AUTHORITY) {
if (username.IsEmpty())
return NS_OK;
NS_WARNING("cannot set username on no-auth url");
return NS_ERROR_UNEXPECTED;
}
if (username.IsEmpty())
return SetUserPass(username);
InvalidateCache();
// escape username if necessary
nsAutoCString buf;
GET_SEGMENT_ENCODER(encoder);
const nsACString &escUsername =
encoder.EncodeSegment(username, esc_Username, buf);
int32_t shift;
if (mUsername.mLen < 0) {
mUsername.mPos = mAuthority.mPos;
mSpec.Insert(escUsername + NS_LITERAL_CSTRING("@"), mUsername.mPos);
shift = escUsername.Length() + 1;
}
else
shift = ReplaceSegment(mUsername.mPos, mUsername.mLen, escUsername);
if (shift) {
mUsername.mLen = escUsername.Length();
mAuthority.mLen += shift;
ShiftFromPassword(shift);
}
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetPassword(const nsACString &input)
{
ENSURE_MUTABLE();
const nsPromiseFlatCString &password = PromiseFlatCString(input);
LOG(("nsStandardURL::SetPassword [password=%s]\n", password.get()));
if (mURLType == URLTYPE_NO_AUTHORITY) {
if (password.IsEmpty())
return NS_OK;
NS_WARNING("cannot set password on no-auth url");
return NS_ERROR_UNEXPECTED;
}
if (mUsername.mLen <= 0) {
NS_WARNING("cannot set password without existing username");
return NS_ERROR_FAILURE;
}
InvalidateCache();
if (password.IsEmpty()) {
if (mPassword.mLen >= 0) {
// cut(":password")
mSpec.Cut(mPassword.mPos - 1, mPassword.mLen + 1);
ShiftFromHost(-(mPassword.mLen + 1));
mAuthority.mLen -= (mPassword.mLen + 1);
mPassword.mLen = -1;
}
return NS_OK;
}
// escape password if necessary
nsAutoCString buf;
GET_SEGMENT_ENCODER(encoder);
const nsACString &escPassword =
encoder.EncodeSegment(password, esc_Password, buf);
int32_t shift;
if (mPassword.mLen < 0) {
mPassword.mPos = mUsername.mPos + mUsername.mLen + 1;
mSpec.Insert(NS_LITERAL_CSTRING(":") + escPassword, mPassword.mPos - 1);
shift = escPassword.Length() + 1;
}
else
shift = ReplaceSegment(mPassword.mPos, mPassword.mLen, escPassword);
if (shift) {
mPassword.mLen = escPassword.Length();
mAuthority.mLen += shift;
ShiftFromHost(shift);
}
return NS_OK;
}
void
nsStandardURL::FindHostLimit(nsACString::const_iterator& aStart,
nsACString::const_iterator& aEnd)
{
for (int32_t i = 0; gHostLimitDigits[i]; ++i) {
nsACString::const_iterator c(aStart);
if (FindCharInReadable(gHostLimitDigits[i], c, aEnd)) {
aEnd = c;
}
}
}
NS_IMETHODIMP
nsStandardURL::SetHostPort(const nsACString &aValue)
{
ENSURE_MUTABLE();
// We cannot simply call nsIURI::SetHost because that would treat the name as
// an IPv6 address (like http:://[server:443]/). We also cannot call
// nsIURI::SetHostPort because that isn't implemented. Sadfaces.
nsACString::const_iterator start, end;
aValue.BeginReading(start);
aValue.EndReading(end);
nsACString::const_iterator iter(start);
bool isIPv6 = false;
FindHostLimit(start, end);
if (*start == '[') { // IPv6 address
if (!FindCharInReadable(']', iter, end)) {
// the ] character is missing
return NS_ERROR_MALFORMED_URI;
}
// iter now at the ']' character
isIPv6 = true;
} else {
nsACString::const_iterator iter2(start);
if (FindCharInReadable(']', iter2, end)) {
// if the first char isn't [ then there should be no ] character
return NS_ERROR_MALFORMED_URI;
}
}
FindCharInReadable(':', iter, end);
if (!isIPv6 && iter != end) {
nsACString::const_iterator iter2(iter);
iter2++; // Skip over the first ':' character
if (FindCharInReadable(':', iter2, end)) {
// If there is more than one ':' character it suggests an IPv6
// The format should be [2001::1]:80 where the port is optional
return NS_ERROR_MALFORMED_URI;
}
}
nsresult rv = SetHost(Substring(start, iter));
NS_ENSURE_SUCCESS(rv, rv);
// Also set the port if needed.
if (iter != end) {
iter++;
if (iter != end) {
nsCString portStr(Substring(iter, end));
nsresult rv;
int32_t port = portStr.ToInteger(&rv);
if (NS_SUCCEEDED(rv)) {
rv = SetPort(port);
NS_ENSURE_SUCCESS(rv, rv);
} else {
// Failure parsing port number
return NS_ERROR_MALFORMED_URI;
}
} else {
// port number is missing
return NS_ERROR_MALFORMED_URI;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetHost(const nsACString &input)
{
ENSURE_MUTABLE();
const nsPromiseFlatCString &hostname = PromiseFlatCString(input);
nsACString::const_iterator start, end;
hostname.BeginReading(start);
hostname.EndReading(end);
FindHostLimit(start, end);
const nsCString flat(Substring(start, end));
const char *host = flat.get();
LOG(("nsStandardURL::SetHost [host=%s]\n", host));
if (mURLType == URLTYPE_NO_AUTHORITY) {
if (flat.IsEmpty())
return NS_OK;
NS_WARNING("cannot set host on no-auth url");
return NS_ERROR_UNEXPECTED;
} else {
if (flat.IsEmpty()) {
// Setting an empty hostname is not allowed for
// URLTYPE_STANDARD and URLTYPE_AUTHORITY.
return NS_ERROR_UNEXPECTED;
}
}
if (strlen(host) < flat.Length())
return NS_ERROR_MALFORMED_URI; // found embedded null
// For consistency with SetSpec/nsURLParsers, don't allow spaces
// in the hostname.
if (strchr(host, ' '))
return NS_ERROR_MALFORMED_URI;
if (!ValidIPv6orHostname(host)) {
return NS_ERROR_MALFORMED_URI;
}
InvalidateCache();
mHostEncoding = eEncoding_ASCII;
int32_t len;
nsAutoCString hostBuf;
if (NormalizeIDN(flat, hostBuf)) {
host = hostBuf.get();
len = hostBuf.Length();
}
else
len = flat.Length();
if (mHost.mLen < 0) {
int port_length = 0;
if (mPort != -1) {
nsAutoCString buf;
buf.Assign(':');
buf.AppendInt(mPort);
port_length = buf.Length();
}
if (mAuthority.mLen > 0) {
mHost.mPos = mAuthority.mPos + mAuthority.mLen - port_length;
mHost.mLen = 0;
} else if (mScheme.mLen > 0) {
mHost.mPos = mScheme.mPos + mScheme.mLen + 3;
mHost.mLen = 0;
}
}
int32_t shift = ReplaceSegment(mHost.mPos, mHost.mLen, host, len);
if (shift) {
mHost.mLen = len;
mAuthority.mLen += shift;
ShiftFromPath(shift);
}
// Now canonicalize the host to lowercase
net_ToLowerCase(mSpec.BeginWriting() + mHost.mPos, mHost.mLen);
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetPort(int32_t port)
{
ENSURE_MUTABLE();
LOG(("nsStandardURL::SetPort [port=%d]\n", port));
if ((port == mPort) || (mPort == -1 && port == mDefaultPort))
return NS_OK;
// ports must be >= 0
if (port < -1) // -1 == use default
return NS_ERROR_MALFORMED_URI;
if (mURLType == URLTYPE_NO_AUTHORITY) {
NS_WARNING("cannot set port on no-auth url");
return NS_ERROR_UNEXPECTED;
}
InvalidateCache();
if (mPort == -1) {
// need to insert the port number in the URL spec
nsAutoCString buf;
buf.Assign(':');
buf.AppendInt(port);
mSpec.Insert(buf, mAuthority.mPos + mAuthority.mLen);
mAuthority.mLen += buf.Length();
ShiftFromPath(buf.Length());
}
else if (port == -1 || port == mDefaultPort) {
// Don't allow mPort == mDefaultPort
port = -1;
// compute length of the current port
nsAutoCString buf;
buf.Assign(':');
buf.AppendInt(mPort);
// need to remove the port number from the URL spec
uint32_t start = mAuthority.mPos + mAuthority.mLen - buf.Length();
int32_t lengthToCut = buf.Length();
mSpec.Cut(start, lengthToCut);
mAuthority.mLen -= lengthToCut;
ShiftFromPath(-lengthToCut);
}
else {
// need to replace the existing port
nsAutoCString buf;
buf.Assign(':');
buf.AppendInt(mPort);
uint32_t start = mAuthority.mPos + mAuthority.mLen - buf.Length();
uint32_t length = buf.Length();
buf.Assign(':');
buf.AppendInt(port);
mSpec.Replace(start, length, buf);
if (buf.Length() != length) {
mAuthority.mLen += buf.Length() - length;
ShiftFromPath(buf.Length() - length);
}
}
mPort = port;
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetPath(const nsACString &input)
{
ENSURE_MUTABLE();
const nsPromiseFlatCString &path = PromiseFlatCString(input);
LOG(("nsStandardURL::SetPath [path=%s]\n", path.get()));
InvalidateCache();
if (!path.IsEmpty()) {
nsAutoCString spec;
spec.Assign(mSpec.get(), mPath.mPos);
if (path.First() != '/')
spec.Append('/');
spec.Append(path);
return SetSpec(spec);
}
else if (mPath.mLen >= 1) {
mSpec.Cut(mPath.mPos + 1, mPath.mLen - 1);
// these contain only a '/'
mPath.mLen = 1;
mDirectory.mLen = 1;
mFilepath.mLen = 1;
// these are no longer defined
mBasename.mLen = -1;
mExtension.mLen = -1;
mQuery.mLen = -1;
mRef.mLen = -1;
}
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::Equals(nsIURI *unknownOther, bool *result)
{
return EqualsInternal(unknownOther, eHonorRef, result);
}
NS_IMETHODIMP
nsStandardURL::EqualsExceptRef(nsIURI *unknownOther, bool *result)
{
return EqualsInternal(unknownOther, eIgnoreRef, result);
}
nsresult
nsStandardURL::EqualsInternal(nsIURI *unknownOther,
nsStandardURL::RefHandlingEnum refHandlingMode,
bool *result)
{
NS_ENSURE_ARG_POINTER(unknownOther);
NS_PRECONDITION(result, "null pointer");
nsRefPtr<nsStandardURL> other;
nsresult rv = unknownOther->QueryInterface(kThisImplCID,
getter_AddRefs(other));
if (NS_FAILED(rv)) {
*result = false;
return NS_OK;
}
// First, check whether one URIs is an nsIFileURL while the other
// is not. If that's the case, they're different.
if (mSupportsFileURL != other->mSupportsFileURL) {
*result = false;
return NS_OK;
}
// Next check parts of a URI that, if different, automatically make the
// URIs different
if (!SegmentIs(mScheme, other->mSpec.get(), other->mScheme) ||
// Check for host manually, since conversion to file will
// ignore the host!
!SegmentIs(mHost, other->mSpec.get(), other->mHost) ||
!SegmentIs(mQuery, other->mSpec.get(), other->mQuery) ||
!SegmentIs(mUsername, other->mSpec.get(), other->mUsername) ||
!SegmentIs(mPassword, other->mSpec.get(), other->mPassword) ||
Port() != other->Port()) {
// No need to compare files or other URI parts -- these are different
// beasties
*result = false;
return NS_OK;
}
if (refHandlingMode == eHonorRef &&
!SegmentIs(mRef, other->mSpec.get(), other->mRef)) {
*result = false;
return NS_OK;
}
// Then check for exact identity of URIs. If we have it, they're equal
if (SegmentIs(mDirectory, other->mSpec.get(), other->mDirectory) &&
SegmentIs(mBasename, other->mSpec.get(), other->mBasename) &&
SegmentIs(mExtension, other->mSpec.get(), other->mExtension)) {
*result = true;
return NS_OK;
}
// At this point, the URIs are not identical, but they only differ in the
// directory/filename/extension. If these are file URLs, then get the
// corresponding file objects and compare those, since two filenames that
// differ, eg, only in case could still be equal.
if (mSupportsFileURL) {
// Assume not equal for failure cases... but failures in GetFile are
// really failures, more or less, so propagate them to caller.
*result = false;
rv = EnsureFile();
nsresult rv2 = other->EnsureFile();
// special case for resource:// urls that don't resolve to files
if (rv == NS_ERROR_NO_INTERFACE && rv == rv2)
return NS_OK;
if (NS_FAILED(rv)) {
LOG(("nsStandardURL::Equals [this=%p spec=%s] failed to ensure file",
this, mSpec.get()));
return rv;
}
NS_ASSERTION(mFile, "EnsureFile() lied!");
rv = rv2;
if (NS_FAILED(rv)) {
LOG(("nsStandardURL::Equals [other=%p spec=%s] other failed to ensure file",
other.get(), other->mSpec.get()));
return rv;
}
NS_ASSERTION(other->mFile, "EnsureFile() lied!");
return mFile->Equals(other->mFile, result);
}
// The URLs are not identical, and they do not correspond to the
// same file, so they are different.
*result = false;
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SchemeIs(const char *scheme, bool *result)
{
NS_PRECONDITION(result, "null pointer");
*result = SegmentIs(mScheme, scheme);
return NS_OK;
}
/* virtual */ nsStandardURL*
nsStandardURL::StartClone()
{
nsStandardURL *clone = new nsStandardURL();
return clone;
}
NS_IMETHODIMP
nsStandardURL::Clone(nsIURI **result)
{
return CloneInternal(eHonorRef, result);
}
NS_IMETHODIMP
nsStandardURL::CloneIgnoringRef(nsIURI **result)
{
return CloneInternal(eIgnoreRef, result);
}
nsresult
nsStandardURL::CloneInternal(nsStandardURL::RefHandlingEnum refHandlingMode,
nsIURI **result)
{
nsRefPtr<nsStandardURL> clone = StartClone();
if (!clone)
return NS_ERROR_OUT_OF_MEMORY;
// Copy local members into clone.
// Also copies the cached members mFile, mHostA
clone->CopyMembers(this, refHandlingMode, true);
clone.forget(result);
return NS_OK;
}
nsresult nsStandardURL::CopyMembers(nsStandardURL * source,
nsStandardURL::RefHandlingEnum refHandlingMode, bool copyCached)
{
mSpec = source->mSpec;
mDefaultPort = source->mDefaultPort;
mPort = source->mPort;
mScheme = source->mScheme;
mAuthority = source->mAuthority;
mUsername = source->mUsername;
mPassword = source->mPassword;
mHost = source->mHost;
mPath = source->mPath;
mFilepath = source->mFilepath;
mDirectory = source->mDirectory;
mBasename = source->mBasename;
mExtension = source->mExtension;
mQuery = source->mQuery;
mRef = source->mRef;
mOriginCharset = source->mOriginCharset;
mURLType = source->mURLType;
mParser = source->mParser;
mMutable = true;
mSupportsFileURL = source->mSupportsFileURL;
mHostEncoding = source->mHostEncoding;
if (copyCached) {
mFile = source->mFile;
mHostA = source->mHostA ? strdup(source->mHostA) : nullptr;
mSpecEncoding = source->mSpecEncoding;
} else {
// The same state as after calling InvalidateCache()
mFile = nullptr;
mHostA = nullptr;
mSpecEncoding = eEncoding_Unknown;
}
if (refHandlingMode == eIgnoreRef) {
SetRef(EmptyCString());
}
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::Resolve(const nsACString &in, nsACString &out)
{
const nsPromiseFlatCString &flat = PromiseFlatCString(in);
const char *relpath = flat.get();
// filter out unexpected chars "\r\n\t" if necessary
nsAutoCString buf;
int32_t relpathLen;
if (net_FilterURIString(relpath, buf)) {
relpath = buf.get();
relpathLen = buf.Length();
} else
relpathLen = flat.Length();
char *result = nullptr;
LOG(("nsStandardURL::Resolve [this=%p spec=%s relpath=%s]\n",
this, mSpec.get(), relpath));
NS_ASSERTION(mParser, "no parser: unitialized");
// NOTE: there is no need for this function to produce normalized
// output. normalization will occur when the result is used to
// initialize a nsStandardURL object.
if (mScheme.mLen < 0) {
NS_WARNING("unable to Resolve URL: this URL not initialized");
return NS_ERROR_NOT_INITIALIZED;
}
nsresult rv;
URLSegment scheme;
char *resultPath = nullptr;
bool relative = false;
uint32_t offset = 0;
netCoalesceFlags coalesceFlag = NET_COALESCE_NORMAL;
// relative urls should never contain a host, so we always want to use
// the noauth url parser.
// use it to extract a possible scheme
rv = mParser->ParseURL(relpath,
relpathLen,
&scheme.mPos, &scheme.mLen,
nullptr, nullptr,
nullptr, nullptr);
// if the parser fails (for example because there is no valid scheme)
// reset the scheme and assume a relative url
if (NS_FAILED(rv)) scheme.Reset();
if (scheme.mLen >= 0) {
// add some flags to coalesceFlag if it is an ftp-url
// need this later on when coalescing the resulting URL
if (SegmentIs(relpath, scheme, "ftp", true)) {
coalesceFlag = (netCoalesceFlags) (coalesceFlag
| NET_COALESCE_ALLOW_RELATIVE_ROOT
| NET_COALESCE_DOUBLE_SLASH_IS_ROOT);
}
// this URL appears to be absolute
// but try to find out more
if (SegmentIs(mScheme, relpath, scheme, true)) {
// mScheme and Scheme are the same
// but this can still be relative
if (nsCRT::strncmp(relpath + scheme.mPos + scheme.mLen,
"://",3) == 0) {
// now this is really absolute
// because a :// follows the scheme
result = NS_strdup(relpath);
} else {
// This is a deprecated form of relative urls like
// http:file or http:/path/file
// we will support it for now ...
relative = true;
offset = scheme.mLen + 1;
}
} else {
// the schemes are not the same, we are also done
// because we have to assume this is absolute
result = NS_strdup(relpath);
}
} else {
// add some flags to coalesceFlag if it is an ftp-url
// need this later on when coalescing the resulting URL
if (SegmentIs(mScheme,"ftp")) {
coalesceFlag = (netCoalesceFlags) (coalesceFlag
| NET_COALESCE_ALLOW_RELATIVE_ROOT
| NET_COALESCE_DOUBLE_SLASH_IS_ROOT);
}
if (relpath[0] == '/' && relpath[1] == '/') {
// this URL //host/path is almost absolute
result = AppendToSubstring(mScheme.mPos, mScheme.mLen + 1, relpath);
} else {
// then it must be relative
relative = true;
}
}
if (relative) {
uint32_t len = 0;
const char *realrelpath = relpath + offset;
switch (*realrelpath) {
case '/':
// overwrite everything after the authority
len = mAuthority.mPos + mAuthority.mLen;
break;
case '?':
// overwrite the existing ?query and #ref
if (mQuery.mLen >= 0)
len = mQuery.mPos - 1;
else if (mRef.mLen >= 0)
len = mRef.mPos - 1;
else
len = mPath.mPos + mPath.mLen;
break;
case '#':
case '\0':
// overwrite the existing #ref
if (mRef.mLen < 0)
len = mPath.mPos + mPath.mLen;
else
len = mRef.mPos - 1;
break;
default:
if (coalesceFlag & NET_COALESCE_DOUBLE_SLASH_IS_ROOT) {
if (Filename().Equals(NS_LITERAL_CSTRING("%2F"),
nsCaseInsensitiveCStringComparator())) {
// if ftp URL ends with %2F then simply
// append relative part because %2F also
// marks the root directory with ftp-urls
len = mFilepath.mPos + mFilepath.mLen;
} else {
// overwrite everything after the directory
len = mDirectory.mPos + mDirectory.mLen;
}
} else {
// overwrite everything after the directory
len = mDirectory.mPos + mDirectory.mLen;
}
}
result = AppendToSubstring(0, len, realrelpath);
// locate result path
resultPath = result + mPath.mPos;
}
if (!result)
return NS_ERROR_OUT_OF_MEMORY;
if (resultPath)
net_CoalesceDirs(coalesceFlag, resultPath);
else {
// locate result path
resultPath = PL_strstr(result, "://");
if (resultPath) {
resultPath = PL_strchr(resultPath + 3, '/');
if (resultPath)
net_CoalesceDirs(coalesceFlag,resultPath);
}
}
out.Adopt(result);
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetCommonBaseSpec(nsIURI *uri2, nsACString &aResult)
{
NS_ENSURE_ARG_POINTER(uri2);
// if uri's are equal, then return uri as is
bool isEquals = false;
if (NS_SUCCEEDED(Equals(uri2, &isEquals)) && isEquals)
return GetSpec(aResult);
aResult.Truncate();
// check pre-path; if they don't match, then return empty string
nsStandardURL *stdurl2;
nsresult rv = uri2->QueryInterface(kThisImplCID, (void **) &stdurl2);
isEquals = NS_SUCCEEDED(rv)
&& SegmentIs(mScheme, stdurl2->mSpec.get(), stdurl2->mScheme)
&& SegmentIs(mHost, stdurl2->mSpec.get(), stdurl2->mHost)
&& SegmentIs(mUsername, stdurl2->mSpec.get(), stdurl2->mUsername)
&& SegmentIs(mPassword, stdurl2->mSpec.get(), stdurl2->mPassword)
&& (Port() == stdurl2->Port());
if (!isEquals)
{
if (NS_SUCCEEDED(rv))
NS_RELEASE(stdurl2);
return NS_OK;
}
// scan for first mismatched character
const char *thisIndex, *thatIndex, *startCharPos;
startCharPos = mSpec.get() + mDirectory.mPos;
thisIndex = startCharPos;
thatIndex = stdurl2->mSpec.get() + mDirectory.mPos;
while ((*thisIndex == *thatIndex) && *thisIndex)
{
thisIndex++;
thatIndex++;
}
// backup to just after previous slash so we grab an appropriate path
// segment such as a directory (not partial segments)
// todo: also check for file matches which include '?' and '#'
while ((thisIndex != startCharPos) && (*(thisIndex-1) != '/'))
thisIndex--;
// grab spec from beginning to thisIndex
aResult = Substring(mSpec, mScheme.mPos, thisIndex - mSpec.get());
NS_RELEASE(stdurl2);
return rv;
}
NS_IMETHODIMP
nsStandardURL::GetRelativeSpec(nsIURI *uri2, nsACString &aResult)
{
NS_ENSURE_ARG_POINTER(uri2);
aResult.Truncate();
// if uri's are equal, then return empty string
bool isEquals = false;
if (NS_SUCCEEDED(Equals(uri2, &isEquals)) && isEquals)
return NS_OK;
nsStandardURL *stdurl2;
nsresult rv = uri2->QueryInterface(kThisImplCID, (void **) &stdurl2);
isEquals = NS_SUCCEEDED(rv)
&& SegmentIs(mScheme, stdurl2->mSpec.get(), stdurl2->mScheme)
&& SegmentIs(mHost, stdurl2->mSpec.get(), stdurl2->mHost)
&& SegmentIs(mUsername, stdurl2->mSpec.get(), stdurl2->mUsername)
&& SegmentIs(mPassword, stdurl2->mSpec.get(), stdurl2->mPassword)
&& (Port() == stdurl2->Port());
if (!isEquals)
{
if (NS_SUCCEEDED(rv))
NS_RELEASE(stdurl2);
return uri2->GetSpec(aResult);
}
// scan for first mismatched character
const char *thisIndex, *thatIndex, *startCharPos;
startCharPos = mSpec.get() + mDirectory.mPos;
thisIndex = startCharPos;
thatIndex = stdurl2->mSpec.get() + mDirectory.mPos;
#ifdef XP_WIN
bool isFileScheme = SegmentIs(mScheme, "file");
if (isFileScheme)
{
// on windows, we need to match the first segment of the path
// if these don't match then we need to return an absolute path
// skip over any leading '/' in path
while ((*thisIndex == *thatIndex) && (*thisIndex == '/'))
{
thisIndex++;
thatIndex++;
}
// look for end of first segment
while ((*thisIndex == *thatIndex) && *thisIndex && (*thisIndex != '/'))
{
thisIndex++;
thatIndex++;
}
// if we didn't match through the first segment, return absolute path
if ((*thisIndex != '/') || (*thatIndex != '/'))
{
NS_RELEASE(stdurl2);
return uri2->GetSpec(aResult);
}
}
#endif
while ((*thisIndex == *thatIndex) && *thisIndex)
{
thisIndex++;
thatIndex++;
}
// backup to just after previous slash so we grab an appropriate path
// segment such as a directory (not partial segments)
// todo: also check for file matches with '#' and '?'
while ((*(thatIndex-1) != '/') && (thatIndex != startCharPos))
thatIndex--;
const char *limit = mSpec.get() + mFilepath.mPos + mFilepath.mLen;
// need to account for slashes and add corresponding "../"
for (; thisIndex <= limit && *thisIndex; ++thisIndex)
{
if (*thisIndex == '/')
aResult.AppendLiteral("../");
}
// grab spec from thisIndex to end
uint32_t startPos = stdurl2->mScheme.mPos + thatIndex - stdurl2->mSpec.get();
aResult.Append(Substring(stdurl2->mSpec, startPos,
stdurl2->mSpec.Length() - startPos));
NS_RELEASE(stdurl2);
return rv;
}
//----------------------------------------------------------------------------
// nsStandardURL::nsIURL
//----------------------------------------------------------------------------
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetFilePath(nsACString &result)
{
result = Filepath();
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetQuery(nsACString &result)
{
result = Query();
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetRef(nsACString &result)
{
result = Ref();
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetHasRef(bool *result)
{
*result = (mRef.mLen >= 0);
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetDirectory(nsACString &result)
{
result = Directory();
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetFileName(nsACString &result)
{
result = Filename();
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetFileBaseName(nsACString &result)
{
result = Basename();
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetFileExtension(nsACString &result)
{
result = Extension();
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetFilePath(const nsACString &input)
{
ENSURE_MUTABLE();
const nsPromiseFlatCString &flat = PromiseFlatCString(input);
const char *filepath = flat.get();
LOG(("nsStandardURL::SetFilePath [filepath=%s]\n", filepath));
// if there isn't a filepath, then there can't be anything
// after the path either. this url is likely uninitialized.
if (mFilepath.mLen < 0)
return SetPath(flat);
if (filepath && *filepath) {
nsAutoCString spec;
uint32_t dirPos, basePos, extPos;
int32_t dirLen, baseLen, extLen;
nsresult rv;
rv = mParser->ParseFilePath(filepath, -1,
&dirPos, &dirLen,
&basePos, &baseLen,
&extPos, &extLen);
if (NS_FAILED(rv)) return rv;
// build up new candidate spec
spec.Assign(mSpec.get(), mPath.mPos);
// ensure leading '/'
if (filepath[dirPos] != '/')
spec.Append('/');
GET_SEGMENT_ENCODER(encoder);
// append encoded filepath components
if (dirLen > 0)
encoder.EncodeSegment(Substring(filepath + dirPos,
filepath + dirPos + dirLen),
esc_Directory | esc_AlwaysCopy, spec);
if (baseLen > 0)
encoder.EncodeSegment(Substring(filepath + basePos,
filepath + basePos + baseLen),
esc_FileBaseName | esc_AlwaysCopy, spec);
if (extLen >= 0) {
spec.Append('.');
if (extLen > 0)
encoder.EncodeSegment(Substring(filepath + extPos,
filepath + extPos + extLen),
esc_FileExtension | esc_AlwaysCopy,
spec);
}
// compute the ending position of the current filepath
if (mFilepath.mLen >= 0) {
uint32_t end = mFilepath.mPos + mFilepath.mLen;
if (mSpec.Length() > end)
spec.Append(mSpec.get() + end, mSpec.Length() - end);
}
return SetSpec(spec);
}
else if (mPath.mLen > 1) {
mSpec.Cut(mPath.mPos + 1, mFilepath.mLen - 1);
// left shift query, and ref
ShiftFromQuery(1 - mFilepath.mLen);
// these contain only a '/'
mPath.mLen = 1;
mDirectory.mLen = 1;
mFilepath.mLen = 1;
// these are no longer defined
mBasename.mLen = -1;
mExtension.mLen = -1;
}
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetQuery(const nsACString &input)
{
ENSURE_MUTABLE();
const nsPromiseFlatCString &flat = PromiseFlatCString(input);
const char *query = flat.get();
LOG(("nsStandardURL::SetQuery [query=%s]\n", query));
if (mPath.mLen < 0)
return SetPath(flat);
InvalidateCache();
if (!query || !*query) {
// remove existing query
if (mQuery.mLen >= 0) {
// remove query and leading '?'
mSpec.Cut(mQuery.mPos - 1, mQuery.mLen + 1);
ShiftFromRef(-(mQuery.mLen + 1));
mPath.mLen -= (mQuery.mLen + 1);
mQuery.mPos = 0;
mQuery.mLen = -1;
}
return NS_OK;
}
int32_t queryLen = strlen(query);
if (query[0] == '?') {
query++;
queryLen--;
}
if (mQuery.mLen < 0) {
if (mRef.mLen < 0)
mQuery.mPos = mSpec.Length();
else
mQuery.mPos = mRef.mPos - 1;
mSpec.Insert('?', mQuery.mPos);
mQuery.mPos++;
mQuery.mLen = 0;
// the insertion pushes these out by 1
mPath.mLen++;
mRef.mPos++;
}
// encode query if necessary
nsAutoCString buf;
bool encoded;
GET_QUERY_ENCODER(encoder);
encoder.EncodeSegmentCount(query, URLSegment(0, queryLen), esc_Query,
buf, encoded);
if (encoded) {
query = buf.get();
queryLen = buf.Length();
}
int32_t shift = ReplaceSegment(mQuery.mPos, mQuery.mLen, query, queryLen);
if (shift) {
mQuery.mLen = queryLen;
mPath.mLen += shift;
ShiftFromRef(shift);
}
return NS_OK;
}
nsresult
nsStandardURL::CheckRefCharacters(const nsACString &input)
{
nsACString::const_iterator start, end;
input.BeginReading(start);
input.EndReading(end);
for (; start != end; ++start) {
switch (*start) {
case 0x00:
case 0x09:
case 0x0A:
case 0x0D:
// These characters are not allowed in the Ref part.
return NS_ERROR_MALFORMED_URI;
default:
continue;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetRef(const nsACString &input)
{
ENSURE_MUTABLE();
const nsPromiseFlatCString &flat = PromiseFlatCString(input);
const char *ref = flat.get();
LOG(("nsStandardURL::SetRef [ref=%s]\n", ref));
nsresult rv = CheckRefCharacters(input);
if (NS_FAILED(rv)) {
return rv;
}
if (mPath.mLen < 0)
return SetPath(flat);
InvalidateCache();
if (!ref || !*ref) {
// remove existing ref
if (mRef.mLen >= 0) {
// remove ref and leading '#'
mSpec.Cut(mRef.mPos - 1, mRef.mLen + 1);
mPath.mLen -= (mRef.mLen + 1);
mRef.mPos = 0;
mRef.mLen = -1;
}
return NS_OK;
}
int32_t refLen = flat.Length();
if (ref[0] == '#') {
ref++;
refLen--;
}
if (mRef.mLen < 0) {
mSpec.Append('#');
++mPath.mLen; // Include the # in the path.
mRef.mPos = mSpec.Length();
mRef.mLen = 0;
}
// If precent encoding is necessary, `ref` will point to `buf`'s content.
// `buf` needs to outlive any use of the `ref` pointer.
nsAutoCString buf;
if (nsContentUtils::EncodeDecodeURLHash()) {
// encode ref if necessary
bool encoded;
GET_SEGMENT_ENCODER(encoder);
encoder.EncodeSegmentCount(ref, URLSegment(0, refLen), esc_Ref,
buf, encoded);
if (encoded) {
ref = buf.get();
refLen = buf.Length();
}
}
int32_t shift = ReplaceSegment(mRef.mPos, mRef.mLen, ref, refLen);
mPath.mLen += shift;
mRef.mLen = refLen;
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetDirectory(const nsACString &input)
{
NS_NOTYETIMPLEMENTED("");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsStandardURL::SetFileName(const nsACString &input)
{
ENSURE_MUTABLE();
const nsPromiseFlatCString &flat = PromiseFlatCString(input);
const char *filename = flat.get();
LOG(("nsStandardURL::SetFileName [filename=%s]\n", filename));
if (mPath.mLen < 0)
return SetPath(flat);
int32_t shift = 0;
if (!(filename && *filename)) {
// remove the filename
if (mBasename.mLen > 0) {
if (mExtension.mLen >= 0)
mBasename.mLen += (mExtension.mLen + 1);
mSpec.Cut(mBasename.mPos, mBasename.mLen);
shift = -mBasename.mLen;
mBasename.mLen = 0;
mExtension.mLen = -1;
}
}
else {
nsresult rv;
URLSegment basename, extension;
// let the parser locate the basename and extension
rv = mParser->ParseFileName(filename, -1,
&basename.mPos, &basename.mLen,
&extension.mPos, &extension.mLen);
if (NS_FAILED(rv)) return rv;
if (basename.mLen < 0) {
// remove existing filename
if (mBasename.mLen >= 0) {
uint32_t len = mBasename.mLen;
if (mExtension.mLen >= 0)
len += (mExtension.mLen + 1);
mSpec.Cut(mBasename.mPos, len);
shift = -int32_t(len);
mBasename.mLen = 0;
mExtension.mLen = -1;
}
}
else {
nsAutoCString newFilename;
bool ignoredOut;
GET_SEGMENT_ENCODER(encoder);
basename.mLen = encoder.EncodeSegmentCount(filename, basename,
esc_FileBaseName |
esc_AlwaysCopy,
newFilename,
ignoredOut);
if (extension.mLen >= 0) {
newFilename.Append('.');
extension.mLen = encoder.EncodeSegmentCount(filename, extension,
esc_FileExtension |
esc_AlwaysCopy,
newFilename,
ignoredOut);
}
if (mBasename.mLen < 0) {
// insert new filename
mBasename.mPos = mDirectory.mPos + mDirectory.mLen;
mSpec.Insert(newFilename, mBasename.mPos);
shift = newFilename.Length();
}
else {
// replace existing filename
uint32_t oldLen = uint32_t(mBasename.mLen);
if (mExtension.mLen >= 0)
oldLen += (mExtension.mLen + 1);
mSpec.Replace(mBasename.mPos, oldLen, newFilename);
shift = newFilename.Length() - oldLen;
}
mBasename.mLen = basename.mLen;
mExtension.mLen = extension.mLen;
if (mExtension.mLen >= 0)
mExtension.mPos = mBasename.mPos + mBasename.mLen + 1;
}
}
if (shift) {
ShiftFromQuery(shift);
mFilepath.mLen += shift;
mPath.mLen += shift;
}
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetFileBaseName(const nsACString &input)
{
nsAutoCString extension;
nsresult rv = GetFileExtension(extension);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoCString newFileName(input);
if (!extension.IsEmpty()) {
newFileName.Append('.');
newFileName.Append(extension);
}
return SetFileName(newFileName);
}
NS_IMETHODIMP
nsStandardURL::SetFileExtension(const nsACString &input)
{
nsAutoCString newFileName;
nsresult rv = GetFileBaseName(newFileName);
NS_ENSURE_SUCCESS(rv, rv);
if (!input.IsEmpty()) {
newFileName.Append('.');
newFileName.Append(input);
}
return SetFileName(newFileName);
}
//----------------------------------------------------------------------------
// nsStandardURL::nsIFileURL
//----------------------------------------------------------------------------
nsresult
nsStandardURL::EnsureFile()
{
NS_PRECONDITION(mSupportsFileURL,
"EnsureFile() called on a URL that doesn't support files!");
if (mFile) {
// Nothing to do
return NS_OK;
}
// Parse the spec if we don't have a cached result
if (mSpec.IsEmpty()) {
NS_WARNING("url not initialized");
return NS_ERROR_NOT_INITIALIZED;
}
if (!SegmentIs(mScheme, "file")) {
NS_WARNING("not a file URL");
return NS_ERROR_FAILURE;
}
return net_GetFileFromURLSpec(mSpec, getter_AddRefs(mFile));
}
NS_IMETHODIMP
nsStandardURL::GetFile(nsIFile **result)
{
NS_PRECONDITION(mSupportsFileURL,
"GetFile() called on a URL that doesn't support files!");
nsresult rv = EnsureFile();
if (NS_FAILED(rv))
return rv;
if (LOG_ENABLED()) {
nsAutoCString path;
mFile->GetNativePath(path);
LOG(("nsStandardURL::GetFile [this=%p spec=%s resulting_path=%s]\n",
this, mSpec.get(), path.get()));
}
// clone the file, so the caller can modify it.
// XXX nsIFileURL.idl specifies that the consumer must _not_ modify the
// nsIFile returned from this method; but it seems that some folks do
// (see bug 161921). until we can be sure that all the consumers are
// behaving themselves, we'll stay on the safe side and clone the file.
// see bug 212724 about fixing the consumers.
return mFile->Clone(result);
}
NS_IMETHODIMP
nsStandardURL::SetFile(nsIFile *file)
{
ENSURE_MUTABLE();
NS_ENSURE_ARG_POINTER(file);
nsresult rv;
nsAutoCString url;
rv = net_GetURLSpecFromFile(file, url);
if (NS_FAILED(rv)) return rv;
SetSpec(url);
rv = Init(mURLType, mDefaultPort, url, nullptr, nullptr);
// must clone |file| since its value is not guaranteed to remain constant
if (NS_SUCCEEDED(rv)) {
InvalidateCache();
if (NS_FAILED(file->Clone(getter_AddRefs(mFile)))) {
NS_WARNING("nsIFile::Clone failed");
// failure to clone is not fatal (GetFile will generate mFile)
mFile = 0;
}
}
return rv;
}
//----------------------------------------------------------------------------
// nsStandardURL::nsIStandardURL
//----------------------------------------------------------------------------
inline bool
IsUTFCharset(const char *aCharset)
{
return ((aCharset[0] == 'U' || aCharset[0] == 'u') &&
(aCharset[1] == 'T' || aCharset[1] == 't') &&
(aCharset[2] == 'F' || aCharset[2] == 'f'));
}
NS_IMETHODIMP
nsStandardURL::Init(uint32_t urlType,
int32_t defaultPort,
const nsACString &spec,
const char *charset,
nsIURI *baseURI)
{
ENSURE_MUTABLE();
if (spec.Length() > (uint32_t) net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
InvalidateCache();
switch (urlType) {
case URLTYPE_STANDARD:
mParser = net_GetStdURLParser();
break;
case URLTYPE_AUTHORITY:
mParser = net_GetAuthURLParser();
break;
case URLTYPE_NO_AUTHORITY:
mParser = net_GetNoAuthURLParser();
break;
default:
NS_NOTREACHED("bad urlType");
return NS_ERROR_INVALID_ARG;
}
mDefaultPort = defaultPort;
mURLType = urlType;
mOriginCharset.Truncate();
if (charset == nullptr || *charset == '\0') {
// check if baseURI provides an origin charset and use that.
if (baseURI)
baseURI->GetOriginCharset(mOriginCharset);
// URI can't be encoded in UTF-16, UTF-16BE, UTF-16LE, UTF-32,
// UTF-32-LE, UTF-32LE, UTF-32BE (yet?). Truncate mOriginCharset if
// it starts with "utf" (since an empty mOriginCharset implies
// UTF-8, this is safe even if mOriginCharset is UTF-8).
if (mOriginCharset.Length() > 3 &&
IsUTFCharset(mOriginCharset.get())) {
mOriginCharset.Truncate();
}
}
else if (!IsUTFCharset(charset)) {
mOriginCharset = charset;
}
if (baseURI) {
uint32_t start, end;
// pull out the scheme and where it ends
nsresult rv = net_ExtractURLScheme(spec, &start, &end, nullptr);
if (NS_SUCCEEDED(rv) && spec.Length() > end+2) {
nsACString::const_iterator slash;
spec.BeginReading(slash);
slash.advance(end+1);
// then check if // follows
// if it follows, aSpec is really absolute ...
// ignore aBaseURI in this case
if (*slash == '/' && *(++slash) == '/')
baseURI = nullptr;
}
}
if (!baseURI)
return SetSpec(spec);
nsAutoCString buf;
nsresult rv = baseURI->Resolve(spec, buf);
if (NS_FAILED(rv)) return rv;
return SetSpec(buf);
}
NS_IMETHODIMP
nsStandardURL::GetMutable(bool *value)
{
*value = mMutable;
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::SetMutable(bool value)
{
NS_ENSURE_ARG(mMutable || !value);
mMutable = value;
return NS_OK;
}
//----------------------------------------------------------------------------
// nsStandardURL::nsISerializable
//----------------------------------------------------------------------------
NS_IMETHODIMP
nsStandardURL::Read(nsIObjectInputStream *stream)
{
NS_PRECONDITION(!mHostA, "Shouldn't have cached ASCII host");
NS_PRECONDITION(mSpecEncoding == eEncoding_Unknown,
"Shouldn't have spec encoding here");
nsresult rv;
uint32_t urlType;
rv = stream->Read32(&urlType);
if (NS_FAILED(rv)) return rv;
mURLType = urlType;
switch (mURLType) {
case URLTYPE_STANDARD:
mParser = net_GetStdURLParser();
break;
case URLTYPE_AUTHORITY:
mParser = net_GetAuthURLParser();
break;
case URLTYPE_NO_AUTHORITY:
mParser = net_GetNoAuthURLParser();
break;
default:
NS_NOTREACHED("bad urlType");
return NS_ERROR_FAILURE;
}
rv = stream->Read32((uint32_t *) &mPort);
if (NS_FAILED(rv)) return rv;
rv = stream->Read32((uint32_t *) &mDefaultPort);
if (NS_FAILED(rv)) return rv;
rv = NS_ReadOptionalCString(stream, mSpec);
if (NS_FAILED(rv)) return rv;
rv = ReadSegment(stream, mScheme);
if (NS_FAILED(rv)) return rv;
rv = ReadSegment(stream, mAuthority);
if (NS_FAILED(rv)) return rv;
rv = ReadSegment(stream, mUsername);
if (NS_FAILED(rv)) return rv;
rv = ReadSegment(stream, mPassword);
if (NS_FAILED(rv)) return rv;
rv = ReadSegment(stream, mHost);
if (NS_FAILED(rv)) return rv;
rv = ReadSegment(stream, mPath);
if (NS_FAILED(rv)) return rv;
rv = ReadSegment(stream, mFilepath);
if (NS_FAILED(rv)) return rv;
rv = ReadSegment(stream, mDirectory);
if (NS_FAILED(rv)) return rv;
rv = ReadSegment(stream, mBasename);
if (NS_FAILED(rv)) return rv;
rv = ReadSegment(stream, mExtension);
if (NS_FAILED(rv)) return rv;
// handle forward compatibility from older serializations that included mParam
URLSegment old_param;
rv = ReadSegment(stream, old_param);
if (NS_FAILED(rv)) return rv;
rv = ReadSegment(stream, mQuery);
if (NS_FAILED(rv)) return rv;
rv = ReadSegment(stream, mRef);
if (NS_FAILED(rv)) return rv;
rv = NS_ReadOptionalCString(stream, mOriginCharset);
if (NS_FAILED(rv)) return rv;
bool isMutable;
rv = stream->ReadBoolean(&isMutable);
if (NS_FAILED(rv)) return rv;
mMutable = isMutable;
bool supportsFileURL;
rv = stream->ReadBoolean(&supportsFileURL);
if (NS_FAILED(rv)) return rv;
mSupportsFileURL = supportsFileURL;
uint32_t hostEncoding;
rv = stream->Read32(&hostEncoding);
if (NS_FAILED(rv)) return rv;
if (hostEncoding != eEncoding_ASCII && hostEncoding != eEncoding_UTF8) {
NS_WARNING("Unexpected host encoding");
return NS_ERROR_UNEXPECTED;
}
mHostEncoding = hostEncoding;
// wait until object is set up, then modify path to include the param
if (old_param.mLen >= 0) { // note that mLen=0 is ";"
// If this wasn't empty, it marks characters between the end of the
// file and start of the query - mPath should include the param,
// query and ref already. Bump the mFilePath and
// directory/basename/extension components to include this.
mFilepath.Merge(mSpec, ';', old_param);
mDirectory.Merge(mSpec, ';', old_param);
mBasename.Merge(mSpec, ';', old_param);
mExtension.Merge(mSpec, ';', old_param);
}
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::Write(nsIObjectOutputStream *stream)
{
nsresult rv;
rv = stream->Write32(mURLType);
if (NS_FAILED(rv)) return rv;
rv = stream->Write32(uint32_t(mPort));
if (NS_FAILED(rv)) return rv;
rv = stream->Write32(uint32_t(mDefaultPort));
if (NS_FAILED(rv)) return rv;
rv = NS_WriteOptionalStringZ(stream, mSpec.get());
if (NS_FAILED(rv)) return rv;
rv = WriteSegment(stream, mScheme);
if (NS_FAILED(rv)) return rv;
rv = WriteSegment(stream, mAuthority);
if (NS_FAILED(rv)) return rv;
rv = WriteSegment(stream, mUsername);
if (NS_FAILED(rv)) return rv;
rv = WriteSegment(stream, mPassword);
if (NS_FAILED(rv)) return rv;
rv = WriteSegment(stream, mHost);
if (NS_FAILED(rv)) return rv;
rv = WriteSegment(stream, mPath);
if (NS_FAILED(rv)) return rv;
rv = WriteSegment(stream, mFilepath);
if (NS_FAILED(rv)) return rv;
rv = WriteSegment(stream, mDirectory);
if (NS_FAILED(rv)) return rv;
rv = WriteSegment(stream, mBasename);
if (NS_FAILED(rv)) return rv;
rv = WriteSegment(stream, mExtension);
if (NS_FAILED(rv)) return rv;
// for backwards compatibility since we removed mParam. Note that this will mean that
// an older browser will read "" for mParam, and the param(s) will be part of mPath (as they
// after the removal of special handling). It only matters if you downgrade a browser to before
// the patch.
URLSegment empty;
rv = WriteSegment(stream, empty);
if (NS_FAILED(rv)) return rv;
rv = WriteSegment(stream, mQuery);
if (NS_FAILED(rv)) return rv;
rv = WriteSegment(stream, mRef);
if (NS_FAILED(rv)) return rv;
rv = NS_WriteOptionalStringZ(stream, mOriginCharset.get());
if (NS_FAILED(rv)) return rv;
rv = stream->WriteBoolean(mMutable);
if (NS_FAILED(rv)) return rv;
rv = stream->WriteBoolean(mSupportsFileURL);
if (NS_FAILED(rv)) return rv;
rv = stream->Write32(mHostEncoding);
if (NS_FAILED(rv)) return rv;
// mSpecEncoding and mHostA are just caches that can be recovered as needed.
return NS_OK;
}
//---------------------------------------------------------------------------
// nsStandardURL::nsIIPCSerializableURI
//---------------------------------------------------------------------------
inline
mozilla::ipc::StandardURLSegment
ToIPCSegment(const nsStandardURL::URLSegment& aSegment)
{
return mozilla::ipc::StandardURLSegment(aSegment.mPos, aSegment.mLen);
}
inline
nsStandardURL::URLSegment
FromIPCSegment(const mozilla::ipc::StandardURLSegment& aSegment)
{
return nsStandardURL::URLSegment(aSegment.position(), aSegment.length());
}
void
nsStandardURL::Serialize(URIParams& aParams)
{
StandardURLParams params;
params.urlType() = mURLType;
params.port() = mPort;
params.defaultPort() = mDefaultPort;
params.spec() = mSpec;
params.scheme() = ToIPCSegment(mScheme);
params.authority() = ToIPCSegment(mAuthority);
params.username() = ToIPCSegment(mUsername);
params.password() = ToIPCSegment(mPassword);
params.host() = ToIPCSegment(mHost);
params.path() = ToIPCSegment(mPath);
params.filePath() = ToIPCSegment(mFilepath);
params.directory() = ToIPCSegment(mDirectory);
params.baseName() = ToIPCSegment(mBasename);
params.extension() = ToIPCSegment(mExtension);
params.query() = ToIPCSegment(mQuery);
params.ref() = ToIPCSegment(mRef);
params.originCharset() = mOriginCharset;
params.isMutable() = !!mMutable;
params.supportsFileURL() = !!mSupportsFileURL;
params.hostEncoding() = mHostEncoding;
// mSpecEncoding and mHostA are just caches that can be recovered as needed.
aParams = params;
}
bool
nsStandardURL::Deserialize(const URIParams& aParams)
{
NS_PRECONDITION(!mHostA, "Shouldn't have cached ASCII host");
NS_PRECONDITION(mSpecEncoding == eEncoding_Unknown,
"Shouldn't have spec encoding here");
NS_PRECONDITION(!mFile, "Shouldn't have cached file");
if (aParams.type() != URIParams::TStandardURLParams) {
NS_ERROR("Received unknown parameters from the other process!");
return false;
}
const StandardURLParams& params = aParams.get_StandardURLParams();
mURLType = params.urlType();
switch (mURLType) {
case URLTYPE_STANDARD:
mParser = net_GetStdURLParser();
break;
case URLTYPE_AUTHORITY:
mParser = net_GetAuthURLParser();
break;
case URLTYPE_NO_AUTHORITY:
mParser = net_GetNoAuthURLParser();
break;
default:
NS_NOTREACHED("bad urlType");
return false;
}
if (params.hostEncoding() != eEncoding_ASCII &&
params.hostEncoding() != eEncoding_UTF8) {
NS_WARNING("Unexpected host encoding");
return false;
}
mPort = params.port();
mDefaultPort = params.defaultPort();
mSpec = params.spec();
mScheme = FromIPCSegment(params.scheme());
mAuthority = FromIPCSegment(params.authority());
mUsername = FromIPCSegment(params.username());
mPassword = FromIPCSegment(params.password());
mHost = FromIPCSegment(params.host());
mPath = FromIPCSegment(params.path());
mFilepath = FromIPCSegment(params.filePath());
mDirectory = FromIPCSegment(params.directory());
mBasename = FromIPCSegment(params.baseName());
mExtension = FromIPCSegment(params.extension());
mQuery = FromIPCSegment(params.query());
mRef = FromIPCSegment(params.ref());
mOriginCharset = params.originCharset();
mMutable = params.isMutable();
mSupportsFileURL = params.supportsFileURL();
mHostEncoding = params.hostEncoding();
// mSpecEncoding and mHostA are just caches that can be recovered as needed.
return true;
}
//----------------------------------------------------------------------------
// nsStandardURL::nsIClassInfo
//----------------------------------------------------------------------------
NS_IMETHODIMP
nsStandardURL::GetInterfaces(uint32_t *count, nsIID * **array)
{
*count = 0;
*array = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetScriptableHelper(nsIXPCScriptable **_retval)
{
*_retval = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetContractID(char * *aContractID)
{
*aContractID = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetClassDescription(char * *aClassDescription)
{
*aClassDescription = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetClassID(nsCID * *aClassID)
{
*aClassID = (nsCID*) moz_xmalloc(sizeof(nsCID));
if (!*aClassID)
return NS_ERROR_OUT_OF_MEMORY;
return GetClassIDNoAlloc(*aClassID);
}
NS_IMETHODIMP
nsStandardURL::GetFlags(uint32_t *aFlags)
{
*aFlags = nsIClassInfo::MAIN_THREAD_ONLY;
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
*aClassIDNoAlloc = kStandardURLCID;
return NS_OK;
}
//----------------------------------------------------------------------------
// nsStandardURL::nsISizeOf
//----------------------------------------------------------------------------
size_t
nsStandardURL::SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
{
return mSpec.SizeOfExcludingThisIfUnshared(aMallocSizeOf) +
mOriginCharset.SizeOfExcludingThisIfUnshared(aMallocSizeOf) +
aMallocSizeOf(mHostA);
// Measurement of the following members may be added later if DMD finds it is
// worthwhile:
// - mParser
// - mFile
}
size_t
nsStandardURL::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const {
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
}
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