diff options
Diffstat (limited to 'netwerk/base/nsSimpleURI.cpp')
| -rw-r--r-- | netwerk/base/nsSimpleURI.cpp | 794 |
1 files changed, 794 insertions, 0 deletions
diff --git a/netwerk/base/nsSimpleURI.cpp b/netwerk/base/nsSimpleURI.cpp new file mode 100644 index 0000000000..56e3300ffe --- /dev/null +++ b/netwerk/base/nsSimpleURI.cpp @@ -0,0 +1,794 @@ +/* -*- 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 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#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; +} + +NS_IMETHODIMP +nsSimpleURI::GetHasUserPass(bool* result) { + *result = false; + 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& aValue) { + 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; +} + +NS_IMETHODIMP +nsSimpleURI::GetHasQuery(bool* result) { + *result = mIsQueryValid; + 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 |