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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 "nsASCIIMask.h"
#include "nsStandardURL.h"
#include "nsCRT.h"
#include "nsEscape.h"
#include "nsIFile.h"
#include "nsIObjectInputStream.h"
#include "nsIObjectOutputStream.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 "mozilla/TextUtils.h"
#include <algorithm>
#include "nsContentUtils.h"
#include "prprf.h"
#include "nsReadableUtils.h"
#include "mozilla/net/MozURL_ffi.h"
#include "mozilla/TextUtils.h"
//
// setenv MOZ_LOG nsStandardURL:5
//
static LazyLogModule gStandardURLLog("nsStandardURL");
// The Chromium code defines its own LOG macro which we don't want
#undef LOG
#define LOG(args) MOZ_LOG(gStandardURLLog, LogLevel::Debug, args)
#undef LOG_ENABLED
#define LOG_ENABLED() MOZ_LOG_TEST(gStandardURLLog, LogLevel::Debug)
using namespace mozilla::ipc;
namespace mozilla {
namespace net {
static NS_DEFINE_CID(kThisImplCID, NS_THIS_STANDARDURL_IMPL_CID);
static NS_DEFINE_CID(kStandardURLCID, NS_STANDARDURL_CID);
// This will always be initialized and destroyed on the main thread, but
// can be safely used on other threads.
nsIIDNService *nsStandardURL::gIDN = nullptr;
// This value will only be updated on the main thread once. Worker threads
// may race when reading this values, but that's OK because in the worst
// case we will just dispatch a noop runnable to the main thread.
bool nsStandardURL::gInitialized = false;
const char nsStandardURL::gHostLimitDigits[] = { '/', '\\', '?', '#', 0 };
bool nsStandardURL::gPunycodeHost = true;
// Invalid host characters
// We still allow % because it is in the ID of addons.
// Any percent encoded ASCII characters that are not allowed in the
// hostname are not percent decoded, and will be parsed just fine.
//
// Note that the array below will be initialized at compile time,
// so we do not need to "optimize" TestForInvalidHostCharacters.
//
constexpr bool TestForInvalidHostCharacters(char c)
{
// Testing for these:
// CONTROL_CHARACTERS " #/:?@[\\]*<>|\"";
return (c > 0 && c < 32) || // The control characters are [1, 31]
c == ' ' || c == '#' || c == '/' || c == ':' || c == '?' ||
c == '@' || c == '[' || c == '\\' || c == ']' || c == '*' ||
c == '<' || c == '>' || c == '|' || c == '"';
}
constexpr ASCIIMaskArray sInvalidHostChars = CreateASCIIMask(TestForInvalidHostCharacters);
//----------------------------------------------------------------------------
// nsStandardURL::nsSegmentEncoder
//----------------------------------------------------------------------------
nsStandardURL::nsSegmentEncoder::nsSegmentEncoder(const Encoding* encoding)
: mEncoding(encoding)
{
if (mEncoding == UTF_8_ENCODING) {
mEncoding = nullptr;
}
}
int32_t nsStandardURL::
nsSegmentEncoder::EncodeSegmentCount(const char *str,
const URLSegment &seg,
int16_t mask,
nsCString& 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 mEncoding is
// null, then the origin charset is UTF-8 and there is nothing to do.
nsAutoCString encBuf;
if (mEncoding && !nsCRT::IsAscii(str + pos, len)) {
// we have to encode this segment
nsresult rv;
const Encoding* ignored;
Tie(rv, ignored) =
mEncoding->Encode(Substring(str + pos, str + pos + len), encBuf);
if (NS_SUCCEEDED(rv)) {
str = encBuf.get();
pos = 0;
len = encBuf.Length();
}
// else some failure occurred... assume UTF-8 is ok.
}
uint32_t initLen = result.Length();
// now perform any required escaping
if (NS_EscapeURL(str + pos, len, mask, 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 nsACString& str,
int16_t mask,
nsCString& result)
{
const char *text;
bool encoded;
EncodeSegmentCount(str.BeginReading(text), URLSegment(0, str.Length()), mask, result, encoded);
if (encoded)
return result;
return str;
}
//----------------------------------------------------------------------------
// nsStandardURL <public>
//----------------------------------------------------------------------------
#ifdef DEBUG_DUMP_URLS_AT_SHUTDOWN
static StaticMutex gAllURLsMutex;
static LinkedList<nsStandardURL> gAllURLs;
#endif
nsStandardURL::nsStandardURL(bool aSupportsFileURL, bool aTrackURL)
: mDefaultPort(-1)
, mPort(-1)
, mDisplayHost(nullptr)
, mURLType(URLTYPE_STANDARD)
, mSupportsFileURL(aSupportsFileURL)
, mCheckedIfHostA(false)
{
LOG(("Creating nsStandardURL @%p\n", this));
// gInitialized changes value only once (false->true) on the main thread.
// It's OK to race here because in the worst case we'll just
// dispatch a noop runnable to the main thread.
MOZ_ASSERT(gInitialized);
// default parser in case nsIStandardURL::Init is never called
mParser = net_GetStdURLParser();
#ifdef DEBUG_DUMP_URLS_AT_SHUTDOWN
if (NS_IsMainThread()) {
if (aTrackURL) {
StaticMutexAutoLock lock(gAllURLsMutex);
gAllURLs.insertBack(this);
}
}
#endif
}
nsStandardURL::~nsStandardURL()
{
LOG(("Destroying nsStandardURL @%p\n", this));
#ifdef DEBUG_DUMP_URLS_AT_SHUTDOWN
{
StaticMutexAutoLock lock(gAllURLsMutex);
if (isInList()) {
remove();
}
}
#endif
}
#ifdef DEBUG_DUMP_URLS_AT_SHUTDOWN
struct DumpLeakedURLs {
DumpLeakedURLs() = default;
~DumpLeakedURLs();
};
DumpLeakedURLs::~DumpLeakedURLs()
{
MOZ_ASSERT(NS_IsMainThread());
StaticMutexAutoLock lock(gAllURLsMutex);
if (!gAllURLs.isEmpty()) {
printf("Leaked URLs:\n");
for (auto url : gAllURLs) {
url->PrintSpec();
}
gAllURLs.clear();
}
}
#endif
void
nsStandardURL::InitGlobalObjects()
{
MOZ_DIAGNOSTIC_ASSERT(NS_IsMainThread());
if (gInitialized) {
return;
}
gInitialized = true;
Preferences::AddBoolVarCache(&gPunycodeHost, "network.standard-url.punycode-host", true);
nsCOMPtr<nsIIDNService> serv(do_GetService(NS_IDNSERVICE_CONTRACTID));
if (serv) {
NS_ADDREF(gIDN = serv.get());
}
MOZ_DIAGNOSTIC_ASSERT(gIDN);
// Make sure nsURLHelper::InitGlobals() gets called on the main thread
nsCOMPtr<nsIURLParser> parser = net_GetStdURLParser();
MOZ_DIAGNOSTIC_ASSERT(parser);
Unused << parser;
}
void
nsStandardURL::ShutdownGlobalObjects()
{
MOZ_DIAGNOSTIC_ASSERT(NS_IsMainThread());
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();
mPath.Reset();
mFilepath.Reset();
mDirectory.Reset();
mBasename.Reset();
mExtension.Reset();
mQuery.Reset();
mRef.Reset();
InvalidateCache();
}
void
nsStandardURL::InvalidateCache(bool invalidateCachedFile)
{
if (invalidateCachedFile) {
mFile = nullptr;
}
}
// Return the number of "dots" in the string, or -1 if invalid. Note that the
// number of relevant entries in the bases/starts/ends arrays is number of
// dots + 1.
// Since the trailing dot is allowed, we pass and adjust "length".
//
// length is assumed to be <= host.Length(); the callers is responsible for that
//
// Note that the value returned is guaranteed to be in [-1, 3] range.
inline int32_t
ValidateIPv4Number(const nsACString& host,
int32_t bases[4], int32_t dotIndex[3],
bool& onlyBase10, int32_t& length)
{
MOZ_ASSERT(length <= (int32_t)host.Length());
if (length <= 0) {
return -1;
}
bool lastWasNumber = false; // We count on this being false for i == 0
int32_t dotCount = 0;
onlyBase10 = true;
for (int32_t i = 0; i < length; i++) {
char current = host[i];
if (current == '.') {
if (!lastWasNumber) { // A dot should not follow an X or a dot, or be first
return -1;
}
if (dotCount > 0 && i == (length - 1)) { // Trailing dot is OK; shorten and return
length--;
return dotCount;
}
if (dotCount > 2) {
return -1;
}
lastWasNumber = false;
dotIndex[dotCount] = i;
dotCount ++;
} else if (current == 'X' || current == 'x') {
if (!lastWasNumber || // An X should not follow an X or a dot or be first
i == (length - 1) || // No trailing Xs allowed
(dotCount == 0 && i != 1) || // If we had no dots, an X should be second
host[i-1] != '0' || // X should always follow a 0. Guaranteed i > 0
// as lastWasNumber is true
(dotCount > 0 && host[i - 2] != '.')) { // And that zero follows a dot if it exists
return -1;
}
lastWasNumber = false;
bases[dotCount] = 16;
onlyBase10 = false;
} else if (current == '0') {
if (i < length - 1 && // Trailing zero doesn't signal octal
host[i + 1] != '.' && // Lone zero is not octal
(i == 0 || host[i - 1] == '.')) { // Zero at start or following a dot is
// a candidate for octal
bases[dotCount] = 8; // This will turn to 16 above if X shows up
onlyBase10 = false;
}
lastWasNumber = true;
} else if (current >= '1' && current <= '7') {
lastWasNumber = true;
} else if (current >= '8' && current <= '9') {
if (bases[dotCount] == 8) {
return -1;
}
lastWasNumber = true;
} else if ((current >= 'a' && current <= 'f') ||
(current >= 'A' && current <= 'F')) {
if (bases[dotCount] != 16) {
return -1;
}
lastWasNumber = true;
} else {
return -1;
}
}
return dotCount;
}
inline nsresult
ParseIPv4Number10(const nsACString& input, uint32_t& number, uint32_t maxNumber)
{
uint64_t value = 0;
const char* current = input.BeginReading();
const char* end = input.EndReading();
for (; current < end; ++current) {
char c = *current;
MOZ_ASSERT(c >= '0' && c <= '9');
value *= 10;
value += c - '0';
}
if (value <= maxNumber) {
number = value;
return NS_OK;
}
// The error case
number = 0;
return NS_ERROR_FAILURE;
}
inline nsresult
ParseIPv4Number(const nsACString& input, int32_t base, uint32_t& number, uint32_t maxNumber)
{
// Accumulate in the 64-bit value
uint64_t value = 0;
const char* current = input.BeginReading();
const char* end = input.EndReading();
switch(base) {
case 16:
++current;
MOZ_FALLTHROUGH;
case 8:
++current;
break;
case 10:
default:
break;
}
for (; current < end; ++current) {
value *= base;
char c = *current;
MOZ_ASSERT((base == 10 && IsAsciiDigit(c)) ||
(base == 8 && c >= '0' && c <= '7') ||
(base == 16 && IsAsciiHexDigit(c)));
if (IsAsciiDigit(c)) {
value += c - '0';
} else if (c >= 'a' && c <= 'f') {
value += c - 'a' + 10;
} else if (c >= 'A' && c <= 'F') {
value += c - 'A' + 10;
}
}
if (value <= maxNumber) {
number = value;
return NS_OK;
}
// The error case
number = 0;
return NS_ERROR_FAILURE;
}
// IPv4 parser spec: https://url.spec.whatwg.org/#concept-ipv4-parser
/* static */ nsresult
nsStandardURL::NormalizeIPv4(const nsACString& host, nsCString& result)
{
int32_t bases[4] = {10,10,10,10};
bool onlyBase10 = true; // Track this as a special case
int32_t dotIndex[3]; // The positions of the dots in the string
// The length may be adjusted by ValidateIPv4Number (ignoring the trailing period)
// so use "length", rather than host.Length() after that call.
int32_t length = static_cast<int32_t>(host.Length());
int32_t dotCount = ValidateIPv4Number(host, bases, dotIndex,
onlyBase10, length);
if (dotCount < 0 || length <= 0) {
return NS_ERROR_FAILURE;
}
// Max values specified by the spec
static const uint32_t upperBounds[] = {0xffffffffu, 0xffffffu,
0xffffu, 0xffu};
uint32_t ipv4;
int32_t start = (dotCount > 0 ? dotIndex[dotCount-1] + 1 : 0);
nsresult res;
// Doing a special case for all items being base 10 gives ~35% speedup
res = (onlyBase10 ?
ParseIPv4Number10(Substring(host, start, length - start),
ipv4, upperBounds[dotCount]) :
ParseIPv4Number(Substring(host, start, length - start),
bases[dotCount],
ipv4, upperBounds[dotCount]));
if (NS_FAILED(res)) {
return NS_ERROR_FAILURE;
}
int32_t lastUsed = -1;
for (int32_t i = 0; i < dotCount; i++) {
uint32_t number;
start = lastUsed + 1;
lastUsed = dotIndex[i];
res = (onlyBase10 ?
ParseIPv4Number10(Substring(host, start, lastUsed - start),
number, 255) :
ParseIPv4Number(Substring(host, start, lastUsed - start),
bases[i], number, 255));
if (NS_FAILED(res)) {
return NS_ERROR_FAILURE;
}
ipv4 += number << (8 * (3 - i));
}
uint8_t ipSegments[4];
NetworkEndian::writeUint32(ipSegments, ipv4);
result = nsPrintfCString("%d.%d.%d.%d", ipSegments[0], ipSegments[1],
ipSegments[2], ipSegments[3]);
return NS_OK;
}
nsresult
nsStandardURL::NormalizeIDN(const nsACString& 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.
result.Truncate();
nsresult rv;
if (!gIDN) {
return NS_ERROR_UNEXPECTED;
}
bool isAscii;
nsAutoCString normalized;
rv = gIDN->ConvertToDisplayIDN(host, &isAscii, normalized);
if (NS_FAILED(rv)) {
return rv;
}
// The result is ASCII. No need to convert to ACE.
if (isAscii) {
result = normalized;
mCheckedIfHostA = true;
mDisplayHost.Truncate();
return NS_OK;
}
rv = gIDN->ConvertUTF8toACE(normalized, result);
if (NS_FAILED(rv)) {
return rv;
}
mCheckedIfHostA = true;
mDisplayHost = normalized;
return NS_OK;
}
bool
nsStandardURL::ValidIPv6orHostname(const char *host, uint32_t length)
{
if (!host || !*host) {
// Should not be NULL or empty string
return false;
}
if (length != strlen(host)) {
// Embedded null
return false;
}
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;
}
const char* end = host + length;
const char* iter = host;
for (; iter != end && *iter; ++iter) {
if (ASCIIMask::IsMasked(sInvalidHostChars, *iter)) {
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,
const URLSegment &segInput, URLSegment &segOutput,
const nsCString *escapedStr,
bool useEscaped, int32_t *diff)
{
MOZ_ASSERT(segInput.mLen == segOutput.mLen);
if (diff) *diff = 0;
if (segInput.mLen > 0) {
if (useEscaped) {
MOZ_ASSERT(diff);
segOutput.mLen = escapedStr->Length();
*diff = segOutput.mLen - segInput.mLen;
memcpy(buf + i, escapedStr->get(), segOutput.mLen);
} else {
memcpy(buf + i, str + segInput.mPos, segInput.mLen);
}
segOutput.mPos = i;
i += segOutput.mLen;
} else {
segOutput.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,
const Encoding* encoding)
{
// 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.
{
nsSegmentEncoder encoder;
nsSegmentEncoder queryEncoder(encoding);
// 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) {
approxLen += 1 + encoder.EncodeSegmentCount(spec, mRef, esc_Ref,
encRef, useEncRef);
}
}
// 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.
// Note that we don't disallow URLs without a host - file:, etc
if (mHost.mLen > 0) {
nsAutoCString tempHost;
NS_UnescapeURL(spec + mHost.mPos, mHost.mLen, esc_AlwaysCopy | esc_Host, tempHost);
if (tempHost.Contains('\0'))
return NS_ERROR_MALFORMED_URI; // null embedded in hostname
if (tempHost.Contains(' '))
return NS_ERROR_MALFORMED_URI; // don't allow spaces in the hostname
nsresult rv = NormalizeIDN(tempHost, encHost);
if (NS_FAILED(rv)) {
return rv;
}
if (!SegmentIs(spec, mScheme, "resource") &&
!SegmentIs(spec, mScheme, "chrome")) {
nsAutoCString ipString;
if (encHost.Length() > 0 &&
encHost.First() == '[' && encHost.Last() == ']' &&
ValidIPv6orHostname(encHost.get(), encHost.Length())) {
rv = (nsresult) rusturl_parse_ipv6addr(&encHost, &ipString);
if (NS_FAILED(rv)) {
return rv;
}
encHost = ipString;
} else if (NS_SUCCEEDED(NormalizeIPv4(encHost, ipString))) {
encHost = ipString;
}
}
// NormalizeIDN always copies, if the call was successful.
useEncHost = true;
approxLen += encHost.Length();
if (!ValidIPv6orHostname(encHost.BeginReading(), encHost.Length())) {
return NS_ERROR_MALFORMED_URI;
}
} else {
// empty host means empty mDisplayHost
mDisplayHost.Truncate();
mCheckedIfHostA = true;
}
// We must take a copy of every single segment because they are pointing to
// the |spec| while we are changing their value, in case we must use
// encoded strings.
URLSegment username(mUsername);
URLSegment password(mPassword);
URLSegment host(mHost);
URLSegment path(mPath);
URLSegment directory(mDirectory);
URLSegment basename(mBasename);
URLSegment extension(mExtension);
URLSegment query(mQuery);
URLSegment ref(mRef);
// The encoded string could be longer than the original input, so we need
// to check the final URI isn't longer than the max length.
if (approxLen + 1 > (uint32_t) net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
//
// generate the normalized URL string
//
// approxLen should be correct or 1 high
if (!mSpec.SetLength(approxLen+1, fallible)) // buf needs a trailing '\0' below
return NS_ERROR_OUT_OF_MEMORY;
char *buf = mSpec.BeginWriting();
uint32_t i = 0;
int32_t diff = 0;
if (mScheme.mLen > 0) {
i = AppendSegmentToBuf(buf, i, spec, mScheme, 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, username, mUsername,
&encUsername, useEncUsername, &diff);
ShiftFromPassword(diff);
if (password.mLen > 0) {
buf[i++] = ':';
i = AppendSegmentToBuf(buf, i, spec, password, mPassword,
&encPassword, useEncPassword, &diff);
ShiftFromHost(diff);
} else {
mPassword.mLen = -1;
}
buf[i++] = '@';
}
if (host.mLen > 0) {
i = AppendSegmentToBuf(buf, i, spec, host, mHost, &encHost, useEncHost,
&diff);
ShiftFromPath(diff);
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[path.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 = basename.mPos = i;
mBasename.mLen = basename.mLen = 0;
}
}
// record corrected (file)path starting position
mPath.mPos = mFilepath.mPos = i - leadingSlash;
i = AppendSegmentToBuf(buf, i, spec, directory, mDirectory,
&encDirectory, useEncDirectory, &diff);
ShiftFromBasename(diff);
// the directory must end with a '/'
if (buf[i-1] != '/') {
buf[i++] = '/';
mDirectory.mLen++;
}
i = AppendSegmentToBuf(buf, i, spec, basename, mBasename,
&encBasename, useEncBasename, &diff);
ShiftFromExtension(diff);
// 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, extension, mExtension,
&encExtension, useEncExtension, &diff);
ShiftFromQuery(diff);
}
// calculate corrected filepath length
mFilepath.mLen = i - mFilepath.mPos;
if (mQuery.mLen >= 0) {
buf[i++] = '?';
i = AppendSegmentToBuf(buf, i, spec, query, mQuery,
&encQuery, useEncQuery,
&diff);
ShiftFromRef(diff);
}
if (mRef.mLen >= 0) {
buf[i++] = '#';
i = AppendSegmentToBuf(buf, i, spec, ref, mRef, &encRef, useEncRef,
&diff);
}
// calculate corrected path length
mPath.mLen = i - mPath.mPos;
}
buf[i] = '\0';
// https://url.spec.whatwg.org/#path-state (1.4.1.2)
// https://url.spec.whatwg.org/#windows-drive-letter
if (SegmentIs(buf, mScheme, "file")) {
char* path = &buf[mPath.mPos];
if (mPath.mLen >= 3 && path[0] == '/'
&& IsAsciiAlpha(path[1])
&& path[2] == '|') {
buf[mPath.mPos + 2] = ':';
}
}
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!");
MOZ_ASSERT(mSpec.Length() <= (uint32_t) net_GetURLMaxLength(),
"The spec should never be this long, we missed a check.");
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');
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');
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);
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);
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;
}
#define SHIFT_FROM(name, what) \
void \
nsStandardURL::name(int32_t diff) \
{ \
if (!diff) return; \
if (what.mLen >= 0) { \
CheckedInt<int32_t> pos = what.mPos; \
pos += diff; \
MOZ_ASSERT(pos.isValid()); \
what.mPos = pos.value(); \
}
#define SHIFT_FROM_NEXT(name, what, next) \
SHIFT_FROM(name, what) \
next(diff); \
}
#define SHIFT_FROM_LAST(name, what) \
SHIFT_FROM(name, what) \
}
SHIFT_FROM_NEXT(ShiftFromAuthority, mAuthority, ShiftFromUsername)
SHIFT_FROM_NEXT(ShiftFromUsername, mUsername, ShiftFromPassword)
SHIFT_FROM_NEXT(ShiftFromPassword, mPassword, ShiftFromHost)
SHIFT_FROM_NEXT(ShiftFromHost, mHost, ShiftFromPath)
SHIFT_FROM_NEXT(ShiftFromPath, mPath, ShiftFromFilepath)
SHIFT_FROM_NEXT(ShiftFromFilepath, mFilepath, ShiftFromDirectory)
SHIFT_FROM_NEXT(ShiftFromDirectory, mDirectory, ShiftFromBasename)
SHIFT_FROM_NEXT(ShiftFromBasename, mBasename, ShiftFromExtension)
SHIFT_FROM_NEXT(ShiftFromExtension, mExtension, ShiftFromQuery)
SHIFT_FROM_NEXT(ShiftFromQuery, mQuery, ShiftFromRef)
SHIFT_FROM_LAST(ShiftFromRef, mRef)
//----------------------------------------------------------------------------
// 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(nsIIPCSerializableURI)
NS_INTERFACE_MAP_ENTRY(nsISensitiveInfoHiddenURI)
// 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)
{
MOZ_ASSERT(mSpec.Length() <= (uint32_t) net_GetURLMaxLength(),
"The spec should never be this long, we missed a check.");
nsresult rv = NS_OK;
if (gPunycodeHost) {
result = mSpec;
} else { // XXX: This code path may be slow
rv = GetDisplaySpec(result);
}
return rv;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetSensitiveInfoHiddenSpec(nsACString &result)
{
nsresult rv = GetSpec(result);
if (NS_FAILED(rv)) {
return rv;
}
if (mPassword.mLen >= 0) {
result.ReplaceLiteral(mPassword.mPos, mPassword.mLen, "****");
}
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) {
return GetSpec(result);
}
URLSegment noRef(0, mRef.mPos - 1);
result = Segment(noRef);
MOZ_ASSERT(mCheckedIfHostA);
if (!gPunycodeHost && !mDisplayHost.IsEmpty()) {
result.Replace(mHost.mPos, mHost.mLen, mDisplayHost);
}
return NS_OK;
}
nsresult
nsStandardURL::CheckIfHostIsAscii()
{
nsresult rv;
if (mCheckedIfHostA) {
return NS_OK;
}
mCheckedIfHostA = true;
if (!gIDN) {
return NS_ERROR_NOT_INITIALIZED;
}
nsAutoCString displayHost;
bool isAscii;
rv = gIDN->ConvertToDisplayIDN(Host(), &isAscii, displayHost);
if (NS_FAILED(rv)) {
mDisplayHost.Truncate();
mCheckedIfHostA = false;
return rv;
}
if (!isAscii) {
mDisplayHost = displayHost;
}
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetDisplaySpec(nsACString &aUnicodeSpec)
{
aUnicodeSpec.Assign(mSpec);
MOZ_ASSERT(mCheckedIfHostA);
if (!mDisplayHost.IsEmpty()) {
aUnicodeSpec.Replace(mHost.mPos, mHost.mLen, mDisplayHost);
}
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetDisplayHostPort(nsACString &aUnicodeHostPort)
{
nsAutoCString unicodeHostPort;
nsresult rv = GetDisplayHost(unicodeHostPort);
if (NS_FAILED(rv)) {
return rv;
}
if (StringBeginsWith(Hostport(), NS_LITERAL_CSTRING("["))) {
aUnicodeHostPort.AssignLiteral("[");
aUnicodeHostPort.Append(unicodeHostPort);
aUnicodeHostPort.AppendLiteral("]");
} else {
aUnicodeHostPort.Assign(unicodeHostPort);
}
uint32_t pos = mHost.mPos + mHost.mLen;
if (pos < mPath.mPos)
aUnicodeHostPort += Substring(mSpec, pos, mPath.mPos - pos);
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetDisplayHost(nsACString &aUnicodeHost)
{
MOZ_ASSERT(mCheckedIfHostA);
if (mDisplayHost.IsEmpty()) {
return GetAsciiHost(aUnicodeHost);
}
aUnicodeHost = mDisplayHost;
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetPrePath(nsACString &result)
{
result = Prepath();
MOZ_ASSERT(mCheckedIfHostA);
if (!gPunycodeHost && !mDisplayHost.IsEmpty()) {
result.Replace(mHost.mPos, mHost.mLen, mDisplayHost);
}
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetDisplayPrePath(nsACString &result)
{
result = Prepath();
MOZ_ASSERT(mCheckedIfHostA);
if (!mDisplayHost.IsEmpty()) {
result.Replace(mHost.mPos, mHost.mLen, mDisplayHost);
}
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)
{
nsresult rv;
if (gPunycodeHost) {
rv = GetAsciiHostPort(result);
} else {
rv = GetDisplayHostPort(result);
}
return rv;
}
NS_IMETHODIMP
nsStandardURL::GetHost(nsACString &result)
{
nsresult rv;
if (gPunycodeHost) {
rv = GetAsciiHost(result);
} else {
rv = GetDisplayHost(result);
}
return rv;
}
NS_IMETHODIMP
nsStandardURL::GetPort(int32_t *result)
{
// should never be more than 16 bit
MOZ_ASSERT(mPort <= std::numeric_limits<uint16_t>::max());
*result = mPort;
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsStandardURL::GetPathQueryRef(nsACString &result)
{
result = Path();
return NS_OK;
}
// result is ASCII
NS_IMETHODIMP
nsStandardURL::GetAsciiSpec(nsACString &result)
{
result = mSpec;
return NS_OK;
}
// result is ASCII
NS_IMETHODIMP
nsStandardURL::GetAsciiHostPort(nsACString &result)
{
result = Hostport();
return NS_OK;
}
// result is ASCII
NS_IMETHODIMP
nsStandardURL::GetAsciiHost(nsACString &result)
{
result = Host();
return NS_OK;
}
static bool
IsSpecialProtocol(const nsACString &input)
{
nsACString::const_iterator start, end;
input.BeginReading(start);
nsACString::const_iterator iterator(start);
input.EndReading(end);
while (iterator != end && *iterator != ':') {
iterator++;
}
nsAutoCString protocol(nsDependentCSubstring(start.get(), iterator.get()));
return protocol.LowerCaseEqualsLiteral("http") ||
protocol.LowerCaseEqualsLiteral("https") ||
protocol.LowerCaseEqualsLiteral("ftp") ||
protocol.LowerCaseEqualsLiteral("ws") ||
protocol.LowerCaseEqualsLiteral("wss") ||
protocol.LowerCaseEqualsLiteral("file") ||
protocol.LowerCaseEqualsLiteral("gopher");
}
nsresult
nsStandardURL::SetSpecInternal(const nsACString &input)
{
return SetSpecWithEncoding(input, nullptr);
}
nsresult
nsStandardURL::SetSpecWithEncoding(const nsACString &input,
const Encoding* encoding)
{
const nsPromiseFlatCString &flat = PromiseFlatCString(input);
LOG(("nsStandardURL::SetSpec [spec=%s]\n", flat.get()));
if (input.Length() > (uint32_t) net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
// filter out unexpected chars "\r\n\t" if necessary
nsAutoCString filteredURI;
net_FilterURIString(flat, filteredURI);
if (filteredURI.Length() == 0) {
return NS_ERROR_MALFORMED_URI;
}
// Make a backup of the curent URL
nsStandardURL prevURL(false,false);
prevURL.CopyMembers(this, eHonorRef, EmptyCString());
Clear();
if (IsSpecialProtocol(filteredURI)) {
// Bug 652186: Replace all backslashes with slashes when parsing paths
// Stop when we reach the query or the hash.
auto start = filteredURI.BeginWriting();
auto end = filteredURI.EndWriting();
while (start != end) {
if (*start == '?' || *start == '#') {
break;
}
if (*start == '\\') {
*start = '/';
}
start++;
}
}
const char *spec = filteredURI.get();
int32_t specLength = filteredURI.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, encoding);
}
// Make sure that a URLTYPE_AUTHORITY has a non-empty hostname.
if (mURLType == URLTYPE_AUTHORITY && mHost.mLen == -1) {
rv = NS_ERROR_MALFORMED_URI;
}
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, EmptyCString());
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;
}
nsresult
nsStandardURL::SetScheme(const nsACString &input)
{
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;
}
if (mSpec.Length() + input.Length() - Scheme().Length() > (uint32_t) net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
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;
}
nsresult
nsStandardURL::SetUserPass(const nsACString &input)
{
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;
}
if (mSpec.Length() + input.Length() - Userpass(true).Length() > (uint32_t) net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
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) {
nsSegmentEncoder 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);
} else {
passwordLen = -1;
}
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 > 0) {
mPassword.mPos = mUsername.mPos + mUsername.mLen + 1;
}
return NS_OK;
}
nsresult
nsStandardURL::SetUsername(const nsACString &input)
{
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);
if (mSpec.Length() + input.Length() - Username().Length() > (uint32_t) net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
InvalidateCache();
// escape username if necessary
nsAutoCString buf;
nsSegmentEncoder 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;
}
nsresult
nsStandardURL::SetPassword(const nsACString &input)
{
const nsPromiseFlatCString &password = PromiseFlatCString(input);
auto clearedPassword = MakeScopeExit([&password, this]() {
// Check that if this method is called with the empty string then the
// password is definitely cleared when exiting this method.
if (password.IsEmpty()) {
MOZ_DIAGNOSTIC_ASSERT(this->Password().IsEmpty());
}
Unused << this; // silence compiler -Wunused-lambda-capture
});
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) {
if (password.IsEmpty()) {
MOZ_DIAGNOSTIC_ASSERT(Password().IsEmpty());
return NS_OK;
}
NS_WARNING("cannot set password without existing username");
return NS_ERROR_FAILURE;
}
if (mSpec.Length() + input.Length() - Password().Length() > (uint32_t) net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
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;
nsSegmentEncoder 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;
}
}
}
// If aValue only has a host part and no port number, the port
// will not be reset!!!
nsresult
nsStandardURL::SetHostPort(const nsACString &aValue)
{
// 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);
if (iter == end) {
// does not end in colon
return NS_OK;
}
iter++; // advance over the colon
if (iter == end) {
// port number is missing
return NS_OK;
}
nsCString portStr(Substring(iter, end));
int32_t port = portStr.ToInteger(&rv);
if (NS_FAILED(rv)) {
// Failure parsing the port number
return NS_OK;
}
Unused << SetPort(port);
return NS_OK;
}
nsresult
nsStandardURL::SetHost(const nsACString &input)
{
const nsPromiseFlatCString &hostname = PromiseFlatCString(input);
nsACString::const_iterator start, end;
hostname.BeginReading(start);
hostname.EndReading(end);
FindHostLimit(start, end);
const nsCString unescapedHost(Substring(start, end));
// Do percent decoding on the the input.
nsAutoCString flat;
NS_UnescapeURL(unescapedHost.BeginReading(), unescapedHost.Length(),
esc_AlwaysCopy | esc_Host, flat);
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;
}
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 (mSpec.Length() + strlen(host) - Host().Length() > (uint32_t) net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
InvalidateCache();
uint32_t len;
nsAutoCString hostBuf;
nsresult rv = NormalizeIDN(flat, hostBuf);
if (NS_FAILED(rv)) {
return rv;
}
if (!SegmentIs(mScheme, "resource") && !SegmentIs(mScheme, "chrome")) {
nsAutoCString ipString;
if (hostBuf.Length() > 0 &&
hostBuf.First() == '[' && hostBuf.Last() == ']' &&
ValidIPv6orHostname(hostBuf.get(), hostBuf.Length())) {
rv = (nsresult) rusturl_parse_ipv6addr(&hostBuf, &ipString);
if (NS_FAILED(rv)) {
return rv;
}
hostBuf = ipString;
} else if (NS_SUCCEEDED(NormalizeIPv4(hostBuf, ipString))) {
hostBuf = ipString;
}
}
// NormalizeIDN always copies if the call was successful
host = hostBuf.get();
len = hostBuf.Length();
if (!ValidIPv6orHostname(host, len)) {
return NS_ERROR_MALFORMED_URI;
}
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;
}
nsresult
nsStandardURL::SetPort(int32_t port)
{
LOG(("nsStandardURL::SetPort [port=%d]\n", port));
if ((port == mPort) || (mPort == -1 && port == mDefaultPort))
return NS_OK;
// ports must be >= 0 and 16 bit
// -1 == use default
if (port < -1 || port > std::numeric_limits<uint16_t>::max())
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 (port == mDefaultPort) {
port = -1;
}
ReplacePortInSpec(port);
mPort = port;
return NS_OK;
}
/**
* Replaces the existing port in mSpec with aNewPort.
*
* The caller is responsible for:
* - Calling InvalidateCache (since our mSpec is changing).
* - Checking whether aNewPort is mDefaultPort (in which case the
* caller should pass aNewPort=-1).
*/
void
nsStandardURL::ReplacePortInSpec(int32_t aNewPort)
{
NS_ASSERTION(aNewPort != mDefaultPort || mDefaultPort == -1,
"Caller should check its passed-in value and pass -1 instead of "
"mDefaultPort, to avoid encoding default port into mSpec");
// Create the (possibly empty) string that we're planning to replace:
nsAutoCString buf;
if (mPort != -1) {
buf.Assign(':');
buf.AppendInt(mPort);
}
// Find the position & length of that string:
const uint32_t replacedLen = buf.Length();
const uint32_t replacedStart =
mAuthority.mPos + mAuthority.mLen - replacedLen;
// Create the (possibly empty) replacement string:
if (aNewPort == -1) {
buf.Truncate();
} else {
buf.Assign(':');
buf.AppendInt(aNewPort);
}
// Perform the replacement:
mSpec.Replace(replacedStart, replacedLen, buf);
// Bookkeeping to reflect the new length:
int32_t shift = buf.Length() - replacedLen;
mAuthority.mLen += shift;
ShiftFromPath(shift);
}
nsresult
nsStandardURL::SetPathQueryRef(const nsACString &input)
{
const nsPromiseFlatCString &path = PromiseFlatCString(input);
LOG(("nsStandardURL::SetPathQueryRef [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 SetSpecInternal(spec);
}
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;
}
// When updating this also update SubstitutingURL::Mutator
// Queries this list of interfaces. If none match, it queries mURI.
NS_IMPL_NSIURIMUTATOR_ISUPPORTS(nsStandardURL::Mutator,
nsIURISetters,
nsIURIMutator,
nsIStandardURLMutator,
nsIURLMutator,
nsIFileURLMutator,
nsISerializable)
NS_IMETHODIMP
nsStandardURL::Mutate(nsIURIMutator** aMutator)
{
RefPtr<nsStandardURL::Mutator> mutator = new nsStandardURL::Mutator();
nsresult rv = mutator->InitFromURI(this);
if (NS_FAILED(rv)) {
return rv;
}
mutator.forget(aMutator);
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);
MOZ_ASSERT(result, "null pointer");
RefPtr<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)
{
MOZ_ASSERT(result, "null pointer");
*result = SegmentIs(mScheme, scheme);
return NS_OK;
}
/* virtual */ nsStandardURL*
nsStandardURL::StartClone()
{
nsStandardURL *clone = new nsStandardURL();
return clone;
}
nsresult
nsStandardURL::Clone(nsIURI **result)
{
return CloneInternal(eHonorRef, EmptyCString(), result);
}
nsresult
nsStandardURL::CloneInternal(nsStandardURL::RefHandlingEnum refHandlingMode,
const nsACString& newRef,
nsIURI **result)
{
RefPtr<nsStandardURL> clone = StartClone();
if (!clone)
return NS_ERROR_OUT_OF_MEMORY;
// Copy local members into clone.
// Also copies the cached members mFile, mDisplayHost
clone->CopyMembers(this, refHandlingMode, newRef, true);
clone.forget(result);
return NS_OK;
}
nsresult nsStandardURL::CopyMembers(nsStandardURL * source,
nsStandardURL::RefHandlingEnum refHandlingMode, const nsACString& newRef,
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;
mURLType = source->mURLType;
mParser = source->mParser;
mSupportsFileURL = source->mSupportsFileURL;
mCheckedIfHostA = source->mCheckedIfHostA;
mDisplayHost = source->mDisplayHost;
if (copyCached) {
mFile = source->mFile;
} else {
InvalidateCache(true);
}
if (refHandlingMode == eIgnoreRef) {
SetRef(EmptyCString());
} else if (refHandlingMode == eReplaceRef) {
SetRef(newRef);
}
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::Resolve(const nsACString &in, nsACString &out)
{
const nsPromiseFlatCString &flat = PromiseFlatCString(in);
// filter out unexpected chars "\r\n\t" if necessary
nsAutoCString buf;
net_FilterURIString(flat, buf);
const char *relpath = buf.get();
int32_t relpathLen = buf.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();
nsAutoCString protocol(Segment(scheme));
nsAutoCString baseProtocol(Scheme());
// We need to do backslash replacement for the following cases:
// 1. The input is an absolute path with a http/https/ftp scheme
// 2. The input is a relative path, and the base URL has a http/https/ftp scheme
if ((protocol.IsEmpty() && IsSpecialProtocol(baseProtocol)) ||
IsSpecialProtocol(protocol)) {
auto start = buf.BeginWriting();
auto end = buf.EndWriting();
while (start != end) {
if (*start == '?' || *start == '#') {
break;
}
if (*start == '\\') {
*start = '/';
}
start++;
}
}
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 (strncmp(relpath + scheme.mPos + scheme.mLen, "://", 3) == 0) {
// now this is really absolute
// because a :// follows the scheme
result = NS_xstrdup(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_xstrdup(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;
}
nsresult
nsStandardURL::SetFilePath(const nsACString &input)
{
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 SetPathQueryRef(flat);
if (filepath && *filepath) {
nsAutoCString spec;
uint32_t dirPos, basePos, extPos;
int32_t dirLen, baseLen, extLen;
nsresult rv;
rv = mParser->ParseFilePath(filepath, flat.Length(),
&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('/');
nsSegmentEncoder 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 SetSpecInternal(spec);
}
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;
}
inline bool
IsUTFEncoding(const Encoding* aEncoding)
{
return aEncoding == UTF_8_ENCODING ||
aEncoding == UTF_16BE_ENCODING ||
aEncoding == UTF_16LE_ENCODING;
}
nsresult
nsStandardURL::SetQuery(const nsACString &input)
{
return SetQueryWithEncoding(input, nullptr);
}
nsresult
nsStandardURL::SetQueryWithEncoding(const nsACString &input,
const Encoding* encoding)
{
const nsPromiseFlatCString &flat = PromiseFlatCString(input);
const char *query = flat.get();
LOG(("nsStandardURL::SetQuery [query=%s]\n", query));
if (IsUTFEncoding(encoding)) {
encoding = nullptr;
}
if (mPath.mLen < 0)
return SetPathQueryRef(flat);
if (mSpec.Length() + input.Length() - Query().Length() > (uint32_t) net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
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 = flat.Length();
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;
nsSegmentEncoder encoder(encoding);
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::SetRef(const nsACString &input)
{
const nsPromiseFlatCString &flat = PromiseFlatCString(input);
const char *ref = flat.get();
LOG(("nsStandardURL::SetRef [ref=%s]\n", ref));
if (mPath.mLen < 0)
return SetPathQueryRef(flat);
if (mSpec.Length() + input.Length() - Ref().Length() > (uint32_t) net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
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;
// encode ref if necessary
bool encoded;
nsSegmentEncoder 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;
}
nsresult
nsStandardURL::SetFileNameInternal(const nsACString &input)
{
const nsPromiseFlatCString &flat = PromiseFlatCString(input);
const char *filename = flat.get();
LOG(("nsStandardURL::SetFileNameInternal [filename=%s]\n", filename));
if (mPath.mLen < 0)
return SetPathQueryRef(flat);
if (mSpec.Length() + input.Length() - Filename().Length() > (uint32_t) net_GetURLMaxLength()) {
return NS_ERROR_MALFORMED_URI;
}
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, flat.Length(),
&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;
nsSegmentEncoder 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;
}
nsresult
nsStandardURL::SetFileBaseNameInternal(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 SetFileNameInternal(newFileName);
}
nsresult
nsStandardURL::SetFileExtensionInternal(const nsACString &input)
{
nsAutoCString newFileName;
nsresult rv = GetFileBaseName(newFileName);
NS_ENSURE_SUCCESS(rv, rv);
if (!input.IsEmpty()) {
newFileName.Append('.');
newFileName.Append(input);
}
return SetFileNameInternal(newFileName);
}
//----------------------------------------------------------------------------
// nsStandardURL::nsIFileURL
//----------------------------------------------------------------------------
nsresult
nsStandardURL::EnsureFile()
{
MOZ_ASSERT(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)
{
MOZ_ASSERT(mSupportsFileURL,
"GetFile() called on a URL that doesn't support files!");
nsresult rv = EnsureFile();
if (NS_FAILED(rv))
return rv;
if (LOG_ENABLED()) {
LOG(("nsStandardURL::GetFile [this=%p spec=%s resulting_path=%s]\n",
this, mSpec.get(), mFile->HumanReadablePath().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);
}
nsresult
nsStandardURL::SetFile(nsIFile *file)
{
NS_ENSURE_ARG_POINTER(file);
nsresult rv;
nsAutoCString url;
rv = net_GetURLSpecFromFile(file, url);
if (NS_FAILED(rv)) return rv;
uint32_t oldURLType = mURLType;
uint32_t oldDefaultPort = mDefaultPort;
rv = Init(nsIStandardURL::URLTYPE_NO_AUTHORITY, -1, url, nullptr, nullptr);
if (NS_FAILED(rv)) {
// Restore the old url type and default port if the call to Init fails.
mURLType = oldURLType;
mDefaultPort = oldDefaultPort;
return rv;
}
// must clone |file| since its value is not guaranteed to remain constant
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 = nullptr;
}
return NS_OK;
}
//----------------------------------------------------------------------------
// nsStandardURL::nsIStandardURL
//----------------------------------------------------------------------------
nsresult
nsStandardURL::Init(uint32_t urlType,
int32_t defaultPort,
const nsACString &spec,
const char *charset,
nsIURI *baseURI)
{
if (spec.Length() > (uint32_t) net_GetURLMaxLength() ||
defaultPort > std::numeric_limits<uint16_t>::max()) {
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:
MOZ_ASSERT_UNREACHABLE("bad urlType");
return NS_ERROR_INVALID_ARG;
}
mDefaultPort = defaultPort;
mURLType = urlType;
auto encoding =
charset ? Encoding::ForLabelNoReplacement(MakeStringSpan(charset))
: nullptr;
// URI can't be encoded in UTF-16BE or UTF-16LE. Truncate encoding
// if it is one of utf encodings (since a null encoding implies
// UTF-8, this is safe even if encoding is UTF-8).
if (IsUTFEncoding(encoding)) {
encoding = nullptr;
}
if (baseURI && net_IsAbsoluteURL(spec)) {
baseURI = nullptr;
}
if (!baseURI)
return SetSpecWithEncoding(spec, encoding);
nsAutoCString buf;
nsresult rv = baseURI->Resolve(spec, buf);
if (NS_FAILED(rv)) return rv;
return SetSpecWithEncoding(buf, encoding);
}
nsresult
nsStandardURL::SetDefaultPort(int32_t aNewDefaultPort)
{
InvalidateCache();
// should never be more than 16 bit
if (aNewDefaultPort >= std::numeric_limits<uint16_t>::max()) {
return NS_ERROR_MALFORMED_URI;
}
// If we're already using the new default-port as a custom port, then clear
// it off of our mSpec & set mPort to -1, to indicate that we'll be using
// the default from now on (which happens to match what we already had).
if (mPort == aNewDefaultPort) {
ReplacePortInSpec(-1);
mPort = -1;
}
mDefaultPort = aNewDefaultPort;
return NS_OK;
}
//----------------------------------------------------------------------------
// nsStandardURL::nsISerializable
//----------------------------------------------------------------------------
NS_IMETHODIMP
nsStandardURL::Read(nsIObjectInputStream *stream)
{
MOZ_ASSERT_UNREACHABLE("Use nsIURIMutator.read() instead");
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
nsStandardURL::ReadPrivate(nsIObjectInputStream *stream)
{
MOZ_ASSERT(mDisplayHost.IsEmpty(), "Shouldn't have cached unicode host");
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:
MOZ_ASSERT_UNREACHABLE("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;
nsAutoCString oldOriginCharset;
rv = NS_ReadOptionalCString(stream, oldOriginCharset);
if (NS_FAILED(rv)) return rv;
bool isMutable;
rv = stream->ReadBoolean(&isMutable);
if (NS_FAILED(rv)) return rv;
Unused << isMutable;
bool supportsFileURL;
rv = stream->ReadBoolean(&supportsFileURL);
if (NS_FAILED(rv)) return rv;
mSupportsFileURL = supportsFileURL;
// 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);
}
rv = CheckIfHostIsAscii();
if (NS_FAILED(rv)) {
return rv;
}
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::Write(nsIObjectOutputStream *stream)
{
MOZ_ASSERT(mSpec.Length() <= (uint32_t) net_GetURLMaxLength(),
"The spec should never be this long, we missed a check.");
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;
// former origin charset
rv = NS_WriteOptionalStringZ(stream, EmptyCString().get());
if (NS_FAILED(rv)) return rv;
// former mMutable
rv = stream->WriteBoolean(false);
if (NS_FAILED(rv)) return rv;
rv = stream->WriteBoolean(mSupportsFileURL);
if (NS_FAILED(rv)) return rv;
// mDisplayHost is just a cache that can be recovered as needed.
return NS_OK;
}
//---------------------------------------------------------------------------
// nsStandardURL::nsIIPCSerializableURI
//---------------------------------------------------------------------------
inline
ipc::StandardURLSegment
ToIPCSegment(const nsStandardURL::URLSegment& aSegment)
{
return ipc::StandardURLSegment(aSegment.mPos, aSegment.mLen);
}
inline
MOZ_MUST_USE bool
FromIPCSegment(const nsACString& aSpec, const ipc::StandardURLSegment& aSegment, nsStandardURL::URLSegment& aTarget)
{
// This seems to be just an empty segment.
if (aSegment.length() == -1) {
aTarget = nsStandardURL::URLSegment();
return true;
}
// A value of -1 means an empty segment, but < -1 is undefined.
if (NS_WARN_IF(aSegment.length() < -1)) {
return false;
}
CheckedInt<uint32_t> segmentLen = aSegment.position();
segmentLen += aSegment.length();
// Make sure the segment does not extend beyond the spec.
if (NS_WARN_IF(!segmentLen.isValid() || segmentLen.value() > aSpec.Length())) {
return false;
}
aTarget.mPos = aSegment.position();
aTarget.mLen = aSegment.length();
return true;
}
void
nsStandardURL::Serialize(URIParams& aParams)
{
MOZ_ASSERT(mSpec.Length() <= (uint32_t) net_GetURLMaxLength(),
"The spec should never be this long, we missed a check.");
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.supportsFileURL() = !!mSupportsFileURL;
// mDisplayHost is just a cache that can be recovered as needed.
aParams = params;
}
bool
nsStandardURL::Deserialize(const URIParams& aParams)
{
MOZ_ASSERT(mDisplayHost.IsEmpty(), "Shouldn't have cached unicode host");
MOZ_ASSERT(!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:
MOZ_ASSERT_UNREACHABLE("bad urlType");
return false;
}
mPort = params.port();
mDefaultPort = params.defaultPort();
mSpec = params.spec();
NS_ENSURE_TRUE(mSpec.Length() <= (uint32_t) net_GetURLMaxLength(), false);
NS_ENSURE_TRUE(FromIPCSegment(mSpec, params.scheme(), mScheme), false);
NS_ENSURE_TRUE(FromIPCSegment(mSpec, params.authority(), mAuthority), false);
NS_ENSURE_TRUE(FromIPCSegment(mSpec, params.username(), mUsername), false);
NS_ENSURE_TRUE(FromIPCSegment(mSpec, params.password(), mPassword), false);
NS_ENSURE_TRUE(FromIPCSegment(mSpec, params.host(), mHost), false);
NS_ENSURE_TRUE(FromIPCSegment(mSpec, params.path(), mPath), false);
NS_ENSURE_TRUE(FromIPCSegment(mSpec, params.filePath(), mFilepath), false);
NS_ENSURE_TRUE(FromIPCSegment(mSpec, params.directory(), mDirectory), false);
NS_ENSURE_TRUE(FromIPCSegment(mSpec, params.baseName(), mBasename), false);
NS_ENSURE_TRUE(FromIPCSegment(mSpec, params.extension(), mExtension), false);
NS_ENSURE_TRUE(FromIPCSegment(mSpec, params.query(), mQuery), false);
NS_ENSURE_TRUE(FromIPCSegment(mSpec, params.ref(), mRef), false);
mSupportsFileURL = params.supportsFileURL();
nsresult rv = CheckIfHostIsAscii();
if (NS_FAILED(rv)) {
return false;
}
// Some sanity checks
NS_ENSURE_TRUE(mScheme.mPos == 0, false);
NS_ENSURE_TRUE(mScheme.mLen > 0, false);
// Make sure scheme is followed by :// (3 characters)
NS_ENSURE_TRUE(mScheme.mLen < INT32_MAX - 3, false); // avoid overflow
NS_ENSURE_TRUE(mSpec.Length() >= (uint32_t) mScheme.mLen + 3, false);
NS_ENSURE_TRUE(nsDependentCSubstring(mSpec, mScheme.mLen, 3).EqualsLiteral("://"), false);
NS_ENSURE_TRUE(mPath.mLen != -1 && mSpec.CharAt(mPath.mPos) == '/', false);
NS_ENSURE_TRUE(mPath.mPos == mFilepath.mPos, false);
NS_ENSURE_TRUE(mQuery.mLen == -1 || mSpec.CharAt(mQuery.mPos - 1) == '?', false);
NS_ENSURE_TRUE(mRef.mLen == -1 || mSpec.CharAt(mRef.mPos - 1) == '#', false);
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(nsACString& aContractID)
{
aContractID.SetIsVoid(true);
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetClassDescription(nsACString& aClassDescription)
{
aClassDescription.SetIsVoid(true);
return NS_OK;
}
NS_IMETHODIMP
nsStandardURL::GetClassID(nsCID * *aClassID)
{
*aClassID = (nsCID*) moz_xmalloc(sizeof(nsCID));
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(MallocSizeOf aMallocSizeOf) const
{
return mSpec.SizeOfExcludingThisIfUnshared(aMallocSizeOf) +
mDisplayHost.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
// Measurement of the following members may be added later if DMD finds it is
// worthwhile:
// - mParser
// - mFile
}
size_t
nsStandardURL::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
}
} // namespace net
} // namespace mozilla
// For unit tests. Including nsStandardURL.h seems to cause problems
nsresult
Test_NormalizeIPv4(const nsACString& host, nsCString& result)
{
return mozilla::net::nsStandardURL::NormalizeIPv4(host, result);
}
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