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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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
#include "mozilla/DebugOnly.h"
#undef LOG
#include "ipc/IPCMessageUtils.h"
#include "nsSimpleURI.h"
#include "nscore.h"
#include "nsCRT.h"
#include "nsString.h"
#include "nsURLHelper.h"
#include "nsNetCID.h"
#include "nsIObjectInputStream.h"
#include "nsIObjectOutputStream.h"
#include "nsEscape.h"
#include "nsError.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/TextUtils.h"
#include "mozilla/ipc/URIUtils.h"
#include "nsIClassInfoImpl.h"
#include "nsIURIMutator.h"
#include "mozilla/net/MozURL.h"
#include "mozilla/StaticPrefs_network.h"
using namespace mozilla::ipc;
namespace mozilla {
namespace net {
static NS_DEFINE_CID(kThisSimpleURIImplementationCID,
NS_THIS_SIMPLEURI_IMPLEMENTATION_CID);
/* static */
already_AddRefed<nsSimpleURI> nsSimpleURI::From(nsIURI* aURI) {
RefPtr<nsSimpleURI> uri;
nsresult rv = aURI->QueryInterface(kThisSimpleURIImplementationCID,
getter_AddRefs(uri));
if (NS_FAILED(rv)) {
return nullptr;
}
return uri.forget();
}
NS_IMPL_CLASSINFO(nsSimpleURI, nullptr, nsIClassInfo::THREADSAFE,
NS_SIMPLEURI_CID)
// Empty CI getter. We only need nsIClassInfo for Serialization
NS_IMPL_CI_INTERFACE_GETTER0(nsSimpleURI)
////////////////////////////////////////////////////////////////////////////////
// nsSimpleURI methods:
NS_IMPL_ADDREF(nsSimpleURI)
NS_IMPL_RELEASE(nsSimpleURI)
NS_INTERFACE_TABLE_HEAD(nsSimpleURI)
NS_INTERFACE_TABLE(nsSimpleURI, nsIURI, nsISerializable)
NS_INTERFACE_TABLE_TO_MAP_SEGUE
NS_IMPL_QUERY_CLASSINFO(nsSimpleURI)
if (aIID.Equals(kThisSimpleURIImplementationCID)) {
foundInterface = static_cast<nsIURI*>(this);
} else
NS_INTERFACE_MAP_ENTRY(nsISizeOf)
NS_INTERFACE_MAP_END
////////////////////////////////////////////////////////////////////////////////
// nsISerializable methods:
NS_IMETHODIMP
nsSimpleURI::Read(nsIObjectInputStream* aStream) {
MOZ_ASSERT_UNREACHABLE("Use nsIURIMutator.read() instead");
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult nsSimpleURI::ReadPrivate(nsIObjectInputStream* aStream) {
nsresult rv;
bool isMutable;
rv = aStream->ReadBoolean(&isMutable);
if (NS_FAILED(rv)) return rv;
Unused << isMutable;
rv = aStream->ReadCString(mScheme);
if (NS_FAILED(rv)) return rv;
rv = aStream->ReadCString(mPath);
if (NS_FAILED(rv)) return rv;
bool isRefValid;
rv = aStream->ReadBoolean(&isRefValid);
if (NS_FAILED(rv)) return rv;
mIsRefValid = isRefValid;
if (isRefValid) {
rv = aStream->ReadCString(mRef);
if (NS_FAILED(rv)) return rv;
} else {
mRef.Truncate(); // invariant: mRef should be empty when it's not valid
}
bool isQueryValid;
rv = aStream->ReadBoolean(&isQueryValid);
if (NS_FAILED(rv)) return rv;
mIsQueryValid = isQueryValid;
if (isQueryValid) {
rv = aStream->ReadCString(mQuery);
if (NS_FAILED(rv)) return rv;
} else {
mQuery.Truncate(); // invariant: mQuery should be empty when it's not valid
}
return NS_OK;
}
NS_IMETHODIMP
nsSimpleURI::Write(nsIObjectOutputStream* aStream) {
nsresult rv;
rv = aStream->WriteBoolean(false); // former mMutable
if (NS_FAILED(rv)) return rv;
rv = aStream->WriteStringZ(mScheme.get());
if (NS_FAILED(rv)) return rv;
rv = aStream->WriteStringZ(mPath.get());
if (NS_FAILED(rv)) return rv;
rv = aStream->WriteBoolean(mIsRefValid);
if (NS_FAILED(rv)) return rv;
if (mIsRefValid) {
rv = aStream->WriteStringZ(mRef.get());
if (NS_FAILED(rv)) return rv;
}
rv = aStream->WriteBoolean(mIsQueryValid);
if (NS_FAILED(rv)) return rv;
if (mIsQueryValid) {
rv = aStream->WriteStringZ(mQuery.get());
if (NS_FAILED(rv)) return rv;
}
return NS_OK;
}
void nsSimpleURI::Serialize(URIParams& aParams) {
SimpleURIParams params;
params.scheme() = mScheme;
params.path() = mPath;
if (mIsRefValid) {
params.ref() = mRef;
} else {
params.ref().SetIsVoid(true);
}
if (mIsQueryValid) {
params.query() = mQuery;
} else {
params.query().SetIsVoid(true);
}
aParams = params;
}
bool nsSimpleURI::Deserialize(const URIParams& aParams) {
if (aParams.type() != URIParams::TSimpleURIParams) {
NS_ERROR("Received unknown parameters from the other process!");
return false;
}
const SimpleURIParams& params = aParams.get_SimpleURIParams();
mScheme = params.scheme();
mPath = params.path();
if (params.ref().IsVoid()) {
mRef.Truncate();
mIsRefValid = false;
} else {
mRef = params.ref();
mIsRefValid = true;
}
if (params.query().IsVoid()) {
mQuery.Truncate();
mIsQueryValid = false;
} else {
mQuery = params.query();
mIsQueryValid = true;
}
return true;
}
////////////////////////////////////////////////////////////////////////////////
// nsIURI methods:
NS_IMETHODIMP
nsSimpleURI::GetSpec(nsACString& result) {
if (!result.Assign(mScheme, fallible) || !result.Append(":"_ns, fallible) ||
!result.Append(mPath, fallible)) {
return NS_ERROR_OUT_OF_MEMORY;
}
if (mIsQueryValid) {
if (!result.Append("?"_ns, fallible) || !result.Append(mQuery, fallible)) {
return NS_ERROR_OUT_OF_MEMORY;
}
} else {
MOZ_ASSERT(mQuery.IsEmpty(), "mIsQueryValid/mQuery invariant broken");
}
if (mIsRefValid) {
if (!result.Append("#"_ns, fallible) || !result.Append(mRef, fallible)) {
return NS_ERROR_OUT_OF_MEMORY;
}
} else {
MOZ_ASSERT(mRef.IsEmpty(), "mIsRefValid/mRef invariant broken");
}
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsSimpleURI::GetSpecIgnoringRef(nsACString& result) {
result = mScheme + ":"_ns + mPath;
if (mIsQueryValid) {
result += "?"_ns + mQuery;
}
return NS_OK;
}
NS_IMETHODIMP
nsSimpleURI::GetDisplaySpec(nsACString& aUnicodeSpec) {
return GetSpec(aUnicodeSpec);
}
NS_IMETHODIMP
nsSimpleURI::GetDisplayHostPort(nsACString& aUnicodeHostPort) {
return GetHostPort(aUnicodeHostPort);
}
NS_IMETHODIMP
nsSimpleURI::GetDisplayHost(nsACString& aUnicodeHost) {
return GetHost(aUnicodeHost);
}
NS_IMETHODIMP
nsSimpleURI::GetDisplayPrePath(nsACString& aPrePath) {
return GetPrePath(aPrePath);
}
NS_IMETHODIMP
nsSimpleURI::GetHasRef(bool* result) {
*result = mIsRefValid;
return NS_OK;
}
nsresult nsSimpleURI::SetSpecInternal(const nsACString& aSpec,
bool aStripWhitespace) {
if (StaticPrefs::network_url_max_length() &&
aSpec.Length() > StaticPrefs::network_url_max_length()) {
return NS_ERROR_MALFORMED_URI;
}
nsresult rv = net_ExtractURLScheme(aSpec, mScheme);
if (NS_FAILED(rv)) {
return rv;
}
nsAutoCString spec;
rv = net_FilterAndEscapeURI(
aSpec, esc_OnlyNonASCII,
aStripWhitespace ? ASCIIMask::MaskWhitespace() : ASCIIMask::MaskCRLFTab(),
spec);
if (NS_FAILED(rv)) {
return rv;
}
int32_t colonPos = spec.FindChar(':');
MOZ_ASSERT(colonPos != kNotFound, "A colon should be in this string");
// This sets mPath, mQuery and mRef.
return SetPathQueryRefInternal(Substring(spec, colonPos + 1));
}
NS_IMETHODIMP
nsSimpleURI::GetScheme(nsACString& result) {
result = mScheme;
return NS_OK;
}
nsresult nsSimpleURI::SetScheme(const nsACString& input) {
// Strip tabs, newlines, carriage returns from input
nsAutoCString scheme(input);
scheme.StripTaggedASCII(ASCIIMask::MaskCRLFTab());
if (!net_IsValidScheme(scheme)) {
NS_WARNING("the given url scheme contains invalid characters");
return NS_ERROR_MALFORMED_URI;
}
mScheme = scheme;
ToLowerCase(mScheme);
return NS_OK;
}
NS_IMETHODIMP
nsSimpleURI::GetPrePath(nsACString& result) {
result = mScheme + ":"_ns;
return NS_OK;
}
NS_IMETHODIMP
nsSimpleURI::GetUserPass(nsACString& result) { return NS_ERROR_FAILURE; }
nsresult nsSimpleURI::SetUserPass(const nsACString& userPass) {
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsSimpleURI::GetUsername(nsACString& result) { return NS_ERROR_FAILURE; }
nsresult nsSimpleURI::SetUsername(const nsACString& userName) {
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsSimpleURI::GetPassword(nsACString& result) { return NS_ERROR_FAILURE; }
nsresult nsSimpleURI::SetPassword(const nsACString& password) {
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsSimpleURI::GetHostPort(nsACString& result) {
// Note: Audit all callers before changing this to return an empty
// string -- CAPS and UI code may depend on this throwing.
// Note: If this is changed, change GetAsciiHostPort as well.
return NS_ERROR_FAILURE;
}
nsresult nsSimpleURI::SetHostPort(const nsACString& result) {
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsSimpleURI::GetHost(nsACString& result) {
// Note: Audit all callers before changing this to return an empty
// string -- CAPS and UI code depend on this throwing.
return NS_ERROR_FAILURE;
}
nsresult nsSimpleURI::SetHost(const nsACString& host) {
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsSimpleURI::GetPort(int32_t* result) {
// Note: Audit all callers before changing this to return an empty
// string -- CAPS and UI code may depend on this throwing.
return NS_ERROR_FAILURE;
}
nsresult nsSimpleURI::SetPort(int32_t port) { return NS_ERROR_FAILURE; }
NS_IMETHODIMP
nsSimpleURI::GetPathQueryRef(nsACString& result) {
result = mPath;
if (mIsQueryValid) {
result += "?"_ns + mQuery;
}
if (mIsRefValid) {
result += "#"_ns + mRef;
}
return NS_OK;
}
nsresult nsSimpleURI::SetPathQueryRef(const nsACString& aPath) {
if (StaticPrefs::network_url_max_length() &&
aPath.Length() > StaticPrefs::network_url_max_length()) {
return NS_ERROR_MALFORMED_URI;
}
nsAutoCString path;
nsresult rv = NS_EscapeURL(aPath, esc_OnlyNonASCII, path, fallible);
if (NS_FAILED(rv)) {
return rv;
}
return SetPathQueryRefInternal(path);
}
nsresult nsSimpleURI::SetPathQueryRefInternal(const nsACString& aPath) {
nsresult rv;
const auto* start = aPath.BeginReading();
const auto* end = aPath.EndReading();
// Find the first instance of ? or # that marks the end of the path.
auto hashOrQueryFilter = [](char c) { return c == '?' || c == '#'; };
const auto* pathEnd = std::find_if(start, end, hashOrQueryFilter);
mIsQueryValid = false;
mQuery.Truncate();
mIsRefValid = false;
mRef.Truncate();
// The path
if (!mPath.Assign(Substring(start, pathEnd), fallible)) {
return NS_ERROR_OUT_OF_MEMORY;
}
if (pathEnd == end) {
return NS_OK;
}
const auto* queryEnd =
std::find_if(pathEnd, end, [](char c) { return c == '#'; });
rv = SetQuery(Substring(pathEnd, queryEnd));
if (NS_FAILED(rv)) {
return rv;
}
if (queryEnd == end) {
return NS_OK;
}
return SetRef(Substring(queryEnd, end));
}
NS_IMETHODIMP
nsSimpleURI::GetRef(nsACString& result) {
if (!mIsRefValid) {
MOZ_ASSERT(mRef.IsEmpty(), "mIsRefValid/mRef invariant broken");
result.Truncate();
} else {
result = mRef;
}
return NS_OK;
}
// NOTE: SetRef("") removes our ref, whereas SetRef("#") sets it to the empty
// string (and will result in .spec and .path having a terminal #).
nsresult nsSimpleURI::SetRef(const nsACString& aRef) {
if (StaticPrefs::network_url_max_length() &&
aRef.Length() > StaticPrefs::network_url_max_length()) {
return NS_ERROR_MALFORMED_URI;
}
nsAutoCString ref;
nsresult rv =
NS_EscapeURL(aRef, esc_OnlyNonASCII | esc_Spaces, ref, fallible);
if (NS_FAILED(rv)) {
return rv;
}
if (ref.IsEmpty()) {
// Empty string means to remove ref completely.
mIsRefValid = false;
mRef.Truncate(); // invariant: mRef should be empty when it's not valid
// Trim trailing invalid chars when ref and query are removed
if (mScheme != "javascript" && mRef.IsEmpty() && mQuery.IsEmpty()) {
TrimTrailingCharactersFromPath();
}
return NS_OK;
}
mIsRefValid = true;
// Gracefully skip initial hash
if (ref[0] == '#') {
mRef = Substring(ref, 1);
} else {
mRef = ref;
}
return NS_OK;
}
NS_IMETHODIMP
nsSimpleURI::Equals(nsIURI* other, bool* result) {
return EqualsInternal(other, eHonorRef, result);
}
NS_IMETHODIMP
nsSimpleURI::EqualsExceptRef(nsIURI* other, bool* result) {
return EqualsInternal(other, eIgnoreRef, result);
}
/* virtual */
nsresult nsSimpleURI::EqualsInternal(
nsIURI* other, nsSimpleURI::RefHandlingEnum refHandlingMode, bool* result) {
NS_ENSURE_ARG_POINTER(other);
MOZ_ASSERT(result, "null pointer");
RefPtr<nsSimpleURI> otherUri;
nsresult rv = other->QueryInterface(kThisSimpleURIImplementationCID,
getter_AddRefs(otherUri));
if (NS_FAILED(rv)) {
*result = false;
return NS_OK;
}
*result = EqualsInternal(otherUri, refHandlingMode);
return NS_OK;
}
bool nsSimpleURI::EqualsInternal(nsSimpleURI* otherUri,
RefHandlingEnum refHandlingMode) {
bool result = (mScheme == otherUri->mScheme && mPath == otherUri->mPath);
if (result) {
result = (mIsQueryValid == otherUri->mIsQueryValid &&
(!mIsQueryValid || mQuery == otherUri->mQuery));
}
if (result && refHandlingMode == eHonorRef) {
result = (mIsRefValid == otherUri->mIsRefValid &&
(!mIsRefValid || mRef == otherUri->mRef));
}
return result;
}
NS_IMETHODIMP
nsSimpleURI::SchemeIs(const char* i_Scheme, bool* o_Equals) {
MOZ_ASSERT(o_Equals, "null pointer");
if (!i_Scheme) {
*o_Equals = false;
return NS_OK;
}
const char* this_scheme = mScheme.get();
// mScheme is guaranteed to be lower case.
if (*i_Scheme == *this_scheme || *i_Scheme == (*this_scheme - ('a' - 'A'))) {
*o_Equals = nsCRT::strcasecmp(this_scheme, i_Scheme) == 0;
} else {
*o_Equals = false;
}
return NS_OK;
}
/* virtual */ nsSimpleURI* nsSimpleURI::StartClone(
nsSimpleURI::RefHandlingEnum refHandlingMode, const nsACString& newRef) {
nsSimpleURI* url = new nsSimpleURI();
SetRefOnClone(url, refHandlingMode, newRef);
return url;
}
/* virtual */
void nsSimpleURI::SetRefOnClone(nsSimpleURI* url,
nsSimpleURI::RefHandlingEnum refHandlingMode,
const nsACString& newRef) {
if (refHandlingMode == eHonorRef) {
url->mRef = mRef;
url->mIsRefValid = mIsRefValid;
} else if (refHandlingMode == eReplaceRef) {
url->SetRef(newRef);
}
}
nsresult nsSimpleURI::Clone(nsIURI** result) {
return CloneInternal(eHonorRef, ""_ns, result);
}
nsresult nsSimpleURI::CloneInternal(
nsSimpleURI::RefHandlingEnum refHandlingMode, const nsACString& newRef,
nsIURI** result) {
RefPtr<nsSimpleURI> url = StartClone(refHandlingMode, newRef);
if (!url) return NS_ERROR_OUT_OF_MEMORY;
url->mScheme = mScheme;
url->mPath = mPath;
url->mIsQueryValid = mIsQueryValid;
if (url->mIsQueryValid) {
url->mQuery = mQuery;
}
url.forget(result);
return NS_OK;
}
NS_IMETHODIMP
nsSimpleURI::Resolve(const nsACString& relativePath, nsACString& result) {
nsAutoCString scheme;
nsresult rv = net_ExtractURLScheme(relativePath, scheme);
if (NS_SUCCEEDED(rv)) {
result = relativePath;
return NS_OK;
}
nsAutoCString spec;
rv = GetAsciiSpec(spec);
if (NS_WARN_IF(NS_FAILED(rv))) {
// If getting the spec fails for some reason, preserve behaviour and just
// return the relative path.
result = relativePath;
return NS_OK;
}
RefPtr<MozURL> url;
rv = MozURL::Init(getter_AddRefs(url), spec);
if (NS_WARN_IF(NS_FAILED(rv))) {
// If parsing the current url fails, we revert to the previous behaviour
// and just return the relative path.
result = relativePath;
return NS_OK;
}
RefPtr<MozURL> url2;
rv = MozURL::Init(getter_AddRefs(url2), relativePath, url);
if (NS_WARN_IF(NS_FAILED(rv))) {
// If parsing the relative url fails, we revert to the previous behaviour
// and just return the relative path.
result = relativePath;
return NS_OK;
}
result = url2->Spec();
return NS_OK;
}
NS_IMETHODIMP
nsSimpleURI::GetAsciiSpec(nsACString& aResult) {
nsresult rv = GetSpec(aResult);
if (NS_FAILED(rv)) return rv;
MOZ_ASSERT(IsAscii(aResult), "The spec should be ASCII");
return NS_OK;
}
NS_IMETHODIMP
nsSimpleURI::GetAsciiHostPort(nsACString& result) {
// XXX This behavior mimics GetHostPort.
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsSimpleURI::GetAsciiHost(nsACString& result) {
result.Truncate();
return NS_OK;
}
//----------------------------------------------------------------------------
// nsSimpleURI::nsISizeOf
//----------------------------------------------------------------------------
size_t nsSimpleURI::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const {
return mScheme.SizeOfExcludingThisIfUnshared(aMallocSizeOf) +
mPath.SizeOfExcludingThisIfUnshared(aMallocSizeOf) +
mQuery.SizeOfExcludingThisIfUnshared(aMallocSizeOf) +
mRef.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
}
size_t nsSimpleURI::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
}
NS_IMETHODIMP
nsSimpleURI::GetFilePath(nsACString& aFilePath) {
aFilePath = mPath;
return NS_OK;
}
nsresult nsSimpleURI::SetFilePath(const nsACString& aFilePath) {
if (mPath.IsEmpty() || mPath.First() != '/') {
// cannot-be-a-base
return NS_ERROR_MALFORMED_URI;
}
const char* current = aFilePath.BeginReading();
const char* end = aFilePath.EndReading();
// Only go up to the first ? or # symbol
for (; current < end; ++current) {
if (*current == '?' || *current == '#') {
break;
}
}
return SetPathQueryRef(
nsDependentCSubstring(aFilePath.BeginReading(), current));
}
NS_IMETHODIMP
nsSimpleURI::GetQuery(nsACString& aQuery) {
if (!mIsQueryValid) {
MOZ_ASSERT(mQuery.IsEmpty(), "mIsQueryValid/mQuery invariant broken");
aQuery.Truncate();
} else {
aQuery = mQuery;
}
return NS_OK;
}
nsresult nsSimpleURI::SetQuery(const nsACString& aQuery) {
if (StaticPrefs::network_url_max_length() &&
aQuery.Length() > StaticPrefs::network_url_max_length()) {
return NS_ERROR_MALFORMED_URI;
}
nsAutoCString query;
nsresult rv = NS_EscapeURL(aQuery, esc_OnlyNonASCII, query, fallible);
if (NS_FAILED(rv)) {
return rv;
}
if (query.IsEmpty()) {
// Empty string means to remove query completely.
mIsQueryValid = false;
mQuery.Truncate(); // invariant: mQuery should be empty when it's not valid
// Trim trailing invalid chars when ref and query are removed
if (mScheme != "javascript" && mRef.IsEmpty() && mQuery.IsEmpty()) {
TrimTrailingCharactersFromPath();
}
return NS_OK;
}
mIsQueryValid = true;
// Gracefully skip initial question mark
if (query[0] == '?') {
mQuery = Substring(query, 1);
} else {
mQuery = query;
}
return NS_OK;
}
nsresult nsSimpleURI::SetQueryWithEncoding(const nsACString& aQuery,
const Encoding* aEncoding) {
return SetQuery(aQuery);
}
void nsSimpleURI::TrimTrailingCharactersFromPath() {
const auto* start = mPath.BeginReading();
const auto* end = mPath.EndReading();
auto charFilter = [](char c) { return static_cast<uint8_t>(c) > 0x20; };
const auto* newEnd =
std::find_if(std::reverse_iterator<decltype(end)>(end),
std::reverse_iterator<decltype(start)>(start), charFilter)
.base();
auto trailCount = std::distance(newEnd, end);
if (trailCount) {
mPath.Truncate(mPath.Length() - trailCount);
}
}
// Queries this list of interfaces. If none match, it queries mURI.
NS_IMPL_NSIURIMUTATOR_ISUPPORTS(nsSimpleURI::Mutator, nsIURISetters,
nsIURIMutator, nsISerializable,
nsISimpleURIMutator)
NS_IMETHODIMP
nsSimpleURI::Mutate(nsIURIMutator** aMutator) {
RefPtr<nsSimpleURI::Mutator> mutator = new nsSimpleURI::Mutator();
nsresult rv = mutator->InitFromURI(this);
if (NS_FAILED(rv)) {
return rv;
}
mutator.forget(aMutator);
return NS_OK;
}
} // namespace net
} // namespace mozilla