| /* |
| * Copyright (C) 2004, 2007, 2008, 2011, 2012 Apple Inc. All rights reserved. |
| * Copyright (C) 2012 Research In Motion Limited. All rights reserved. |
| * Copyright (C) 2008, 2009, 2011 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "third_party/blink/renderer/platform/weborigin/kurl.h" |
| |
| #include <algorithm> |
| |
| #include "third_party/blink/renderer/platform/weborigin/known_ports.h" |
| #include "third_party/blink/renderer/platform/wtf/math_extras.h" |
| #include "third_party/blink/renderer/platform/wtf/std_lib_extras.h" |
| #include "third_party/blink/renderer/platform/wtf/text/cstring.h" |
| #include "third_party/blink/renderer/platform/wtf/text/string_hash.h" |
| #include "third_party/blink/renderer/platform/wtf/text/string_statics.h" |
| #include "third_party/blink/renderer/platform/wtf/text/string_utf8_adaptor.h" |
| #include "third_party/blink/renderer/platform/wtf/text/text_encoding.h" |
| #include "url/gurl.h" |
| #include "url/url_util.h" |
| #ifndef NDEBUG |
| #include <stdio.h> |
| #endif |
| |
| namespace blink { |
| |
| #if DCHECK_IS_ON() |
| static void AssertProtocolIsGood(const StringView protocol) { |
| DCHECK(protocol != ""); |
| for (size_t i = 0; i < protocol.length(); ++i) { |
| LChar c = protocol.Characters8()[i]; |
| DCHECK(c > ' ' && c < 0x7F && !(c >= 'A' && c <= 'Z')); |
| } |
| } |
| #endif |
| |
| // Note: You must ensure that |spec| is a valid canonicalized URL before calling |
| // this function. |
| static const char* AsURLChar8Subtle(const String& spec) { |
| DCHECK(spec.Is8Bit()); |
| // characters8 really return characters in Latin-1, but because we |
| // canonicalize URL strings, we know that everything before the fragment |
| // identifier will actually be ASCII, which means this cast is safe as long as |
| // you don't look at the fragment component. |
| return reinterpret_cast<const char*>(spec.Characters8()); |
| } |
| |
| // Returns the characters for the given string, or a pointer to a static empty |
| // string if the input string is null. This will always ensure we have a non- |
| // null character pointer since ReplaceComponents has special meaning for null. |
| static const char* CharactersOrEmpty(const StringUTF8Adaptor& string) { |
| static const char kZero = 0; |
| return string.Data() ? string.Data() : &kZero; |
| } |
| |
| static bool IsSchemeFirstChar(char c) { |
| return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); |
| } |
| |
| static bool IsSchemeChar(char c) { |
| return IsSchemeFirstChar(c) || (c >= '0' && c <= '9') || c == '.' || |
| c == '-' || c == '+'; |
| } |
| |
| static bool IsUnicodeEncoding(const WTF::TextEncoding* encoding) { |
| return encoding->EncodingForFormSubmission() == UTF8Encoding(); |
| } |
| |
| namespace { |
| |
| class KURLCharsetConverter final : public url::CharsetConverter { |
| DISALLOW_NEW(); |
| |
| public: |
| // The encoding parameter may be 0, but in this case the object must not be |
| // called. |
| explicit KURLCharsetConverter(const WTF::TextEncoding* encoding) |
| : encoding_(encoding) {} |
| |
| void ConvertFromUTF16(const base::char16* input, |
| int input_length, |
| url::CanonOutput* output) override { |
| CString encoded = encoding_->Encode( |
| String(input, input_length), WTF::kURLEncodedEntitiesForUnencodables); |
| output->Append(encoded.data(), static_cast<int>(encoded.length())); |
| } |
| |
| private: |
| const WTF::TextEncoding* encoding_; |
| }; |
| |
| } // namespace |
| |
| bool IsValidProtocol(const String& protocol) { |
| // RFC3986: ALPHA *( ALPHA / DIGIT / "+" / "-" / "." ) |
| if (protocol.IsEmpty()) |
| return false; |
| if (!IsSchemeFirstChar(protocol[0])) |
| return false; |
| unsigned protocol_length = protocol.length(); |
| for (unsigned i = 1; i < protocol_length; i++) { |
| if (!IsSchemeChar(protocol[i])) |
| return false; |
| } |
| return true; |
| } |
| |
| void KURL::Initialize() { |
| // This must be called before we create other threads to |
| // avoid racy static local initialization. |
| BlankURL(); |
| } |
| |
| String KURL::StrippedForUseAsReferrer() const { |
| if (!ProtocolIsInHTTPFamily()) |
| return String(); |
| |
| if (parsed_.username.is_nonempty() || parsed_.password.is_nonempty() || |
| parsed_.ref.is_valid()) { |
| KURL referrer(*this); |
| referrer.SetUser(String()); |
| referrer.SetPass(String()); |
| referrer.RemoveFragmentIdentifier(); |
| return referrer.GetString(); |
| } |
| return GetString(); |
| } |
| |
| String KURL::StrippedForUseAsHref() const { |
| if (parsed_.username.is_nonempty() || parsed_.password.is_nonempty()) { |
| KURL href(*this); |
| href.SetUser(String()); |
| href.SetPass(String()); |
| return href.GetString(); |
| } |
| return GetString(); |
| } |
| |
| bool KURL::IsLocalFile() const { |
| // Including feed here might be a bad idea since drag and drop uses this check |
| // and including feed would allow feeds to potentially let someone's blog |
| // read the contents of the clipboard on a drag, even without a drop. |
| // Likewise with using the FrameLoader::shouldTreatURLAsLocal() function. |
| return ProtocolIs("file"); |
| } |
| |
| bool ProtocolIsJavaScript(const String& url) { |
| return ProtocolIs(url, "javascript"); |
| } |
| |
| const KURL& BlankURL() { |
| DEFINE_STATIC_LOCAL(KURL, static_blank_url, ("about:blank")); |
| return static_blank_url; |
| } |
| |
| bool KURL::IsAboutBlankURL() const { |
| return *this == BlankURL(); |
| } |
| |
| const KURL& SrcdocURL() { |
| DEFINE_STATIC_LOCAL(KURL, static_srcdoc_url, ("about:srcdoc")); |
| return static_srcdoc_url; |
| } |
| |
| bool KURL::IsAboutSrcdocURL() const { |
| return *this == SrcdocURL(); |
| } |
| |
| const KURL& NullURL() { |
| DEFINE_THREAD_SAFE_STATIC_LOCAL(KURL, static_null_url, ()); |
| return static_null_url; |
| } |
| |
| String KURL::ElidedString() const { |
| if (GetString().length() <= 1024) |
| return GetString(); |
| |
| return GetString().Left(511) + "..." + GetString().Right(510); |
| } |
| |
| KURL::KURL() : is_valid_(false), protocol_is_in_http_family_(false) {} |
| |
| // Initializes with a string representing an absolute URL. No encoding |
| // information is specified. This generally happens when a KURL is converted |
| // to a string and then converted back. In this case, the URL is already |
| // canonical and in proper escaped form so needs no encoding. We treat it as |
| // UTF-8 just in case. |
| KURL::KURL(const String& url) { |
| if (!url.IsNull()) |
| Init(NullURL(), url, nullptr); |
| else { |
| // WebCore expects us to preserve the nullness of strings when this |
| // constructor is used. In all other cases, it expects a non-null |
| // empty string, which is what Init() will create. |
| is_valid_ = false; |
| protocol_is_in_http_family_ = false; |
| } |
| } |
| |
| // Initializes with a GURL. This is used to covert from a GURL to a KURL. |
| KURL::KURL(const GURL& gurl) { |
| Init(NullURL() /* base */, String(gurl.spec().c_str()) /* relative */, |
| nullptr /* query_encoding */); |
| } |
| |
| KURL KURL::CreateIsolated(const String& url) { |
| // FIXME: We should be able to skip this extra copy and created an |
| // isolated KURL more efficiently. |
| return KURL(url).Copy(); |
| } |
| |
| // Constructs a new URL given a base URL and a possibly relative input URL. |
| // This assumes UTF-8 encoding. |
| KURL::KURL(const KURL& base, const String& relative) { |
| Init(base, relative, nullptr); |
| } |
| |
| // Constructs a new URL given a base URL and a possibly relative input URL. |
| // Any query portion of the relative URL will be encoded in the given encoding. |
| KURL::KURL(const KURL& base, |
| const String& relative, |
| const WTF::TextEncoding& encoding) { |
| Init(base, relative, &encoding.EncodingForFormSubmission()); |
| } |
| |
| KURL::KURL(const AtomicString& canonical_string, |
| const url::Parsed& parsed, |
| bool is_valid) |
| : is_valid_(is_valid), |
| protocol_is_in_http_family_(false), |
| parsed_(parsed), |
| string_(canonical_string) { |
| InitProtocolMetadata(); |
| InitInnerURL(); |
| } |
| |
| KURL::KURL(const KURL& other) |
| : is_valid_(other.is_valid_), |
| protocol_is_in_http_family_(other.protocol_is_in_http_family_), |
| protocol_(other.protocol_), |
| parsed_(other.parsed_), |
| string_(other.string_) { |
| if (other.inner_url_.get()) |
| inner_url_ = std::make_unique<KURL>(other.inner_url_->Copy()); |
| } |
| |
| KURL::~KURL() = default; |
| |
| KURL& KURL::operator=(const KURL& other) { |
| is_valid_ = other.is_valid_; |
| protocol_is_in_http_family_ = other.protocol_is_in_http_family_; |
| protocol_ = other.protocol_; |
| parsed_ = other.parsed_; |
| string_ = other.string_; |
| if (other.inner_url_) |
| inner_url_ = std::make_unique<KURL>(other.inner_url_->Copy()); |
| else |
| inner_url_.reset(); |
| return *this; |
| } |
| |
| KURL KURL::Copy() const { |
| KURL result; |
| result.is_valid_ = is_valid_; |
| result.protocol_is_in_http_family_ = protocol_is_in_http_family_; |
| result.protocol_ = protocol_.IsolatedCopy(); |
| result.parsed_ = parsed_; |
| result.string_ = string_.IsolatedCopy(); |
| if (inner_url_) |
| result.inner_url_ = std::make_unique<KURL>(inner_url_->Copy()); |
| return result; |
| } |
| |
| bool KURL::IsNull() const { |
| return string_.IsNull(); |
| } |
| |
| bool KURL::IsEmpty() const { |
| return string_.IsEmpty(); |
| } |
| |
| bool KURL::IsValid() const { |
| return is_valid_; |
| } |
| |
| bool KURL::HasPort() const { |
| return HostEnd() < PathStart(); |
| } |
| |
| bool KURL::ProtocolIsJavaScript() const { |
| return ComponentStringView(parsed_.scheme) == "javascript"; |
| } |
| |
| bool KURL::ProtocolIsInHTTPFamily() const { |
| return protocol_is_in_http_family_; |
| } |
| |
| bool KURL::HasPath() const { |
| // Note that http://www.google.com/" has a path, the path is "/". This can |
| // return false only for invalid or nonstandard URLs. |
| return parsed_.path.len >= 0; |
| } |
| |
| String KURL::LastPathComponent() const { |
| if (!is_valid_) |
| return StringViewForInvalidComponent().ToString(); |
| DCHECK(!string_.IsNull()); |
| |
| // When the output ends in a slash, WebCore has different expectations than |
| // the GoogleURL library. For "/foo/bar/" the library will return the empty |
| // string, but WebCore wants "bar". |
| url::Component path = parsed_.path; |
| if (path.len > 0 && string_[path.end() - 1] == '/') |
| path.len--; |
| |
| url::Component file; |
| if (string_.Is8Bit()) |
| url::ExtractFileName(AsURLChar8Subtle(string_), path, &file); |
| else |
| url::ExtractFileName(string_.Characters16(), path, &file); |
| |
| // Bug: https://bugs.webkit.org/show_bug.cgi?id=21015 this function returns |
| // a null string when the path is empty, which we duplicate here. |
| if (!file.is_nonempty()) |
| return String(); |
| return ComponentString(file); |
| } |
| |
| String KURL::Protocol() const { |
| DCHECK_EQ(ComponentString(parsed_.scheme), protocol_); |
| return protocol_; |
| } |
| |
| String KURL::Host() const { |
| return ComponentString(parsed_.host); |
| } |
| |
| unsigned short KURL::Port() const { |
| if (!is_valid_ || parsed_.port.len <= 0) |
| return 0; |
| DCHECK(!string_.IsNull()); |
| int port = string_.Is8Bit() |
| ? url::ParsePort(AsURLChar8Subtle(string_), parsed_.port) |
| : url::ParsePort(string_.Characters16(), parsed_.port); |
| DCHECK_NE(port, url::PORT_UNSPECIFIED); // Checked port.len <= 0 already. |
| DCHECK_NE(port, url::PORT_INVALID); // Checked is_valid_ already. |
| |
| return static_cast<unsigned short>(port); |
| } |
| |
| // TODO(csharrison): Migrate pass() and user() to return a StringView. Most |
| // consumers just need to know if the string is empty. |
| |
| String KURL::Pass() const { |
| // Bug: https://bugs.webkit.org/show_bug.cgi?id=21015 this function returns |
| // a null string when the password is empty, which we duplicate here. |
| if (!parsed_.password.is_nonempty()) |
| return String(); |
| return ComponentString(parsed_.password); |
| } |
| |
| String KURL::User() const { |
| return ComponentString(parsed_.username); |
| } |
| |
| String KURL::FragmentIdentifier() const { |
| // Empty but present refs ("foo.com/bar#") should result in the empty |
| // string, which componentString will produce. Nonexistent refs |
| // should be the null string. |
| if (!parsed_.ref.is_valid()) |
| return String(); |
| return ComponentString(parsed_.ref); |
| } |
| |
| bool KURL::HasFragmentIdentifier() const { |
| return parsed_.ref.len >= 0; |
| } |
| |
| String KURL::BaseAsString() const { |
| // FIXME: There is probably a more efficient way to do this? |
| return string_.Left(PathAfterLastSlash()); |
| } |
| |
| String KURL::Query() const { |
| if (parsed_.query.len >= 0) |
| return ComponentString(parsed_.query); |
| |
| // Bug: https://bugs.webkit.org/show_bug.cgi?id=21015 this function returns |
| // an empty string when the query is empty rather than a null (not sure |
| // which is right). |
| // Returns a null if the query is not specified, instead of empty. |
| if (parsed_.query.is_valid()) |
| return g_empty_string; |
| return String(); |
| } |
| |
| String KURL::GetPath() const { |
| return ComponentString(parsed_.path); |
| } |
| |
| bool KURL::SetProtocol(const String& protocol) { |
| // Firefox and IE remove everything after the first ':'. |
| int separator_position = protocol.find(':'); |
| String new_protocol = protocol.Substring(0, separator_position); |
| StringUTF8Adaptor new_protocol_utf8(new_protocol); |
| |
| // If KURL is given an invalid scheme, it returns failure without modifying |
| // the URL at all. This is in contrast to most other setters which modify |
| // the URL and set "m_isValid." |
| url::RawCanonOutputT<char> canon_protocol; |
| url::Component protocol_component; |
| if (!url::CanonicalizeScheme(new_protocol_utf8.Data(), |
| url::Component(0, new_protocol_utf8.length()), |
| &canon_protocol, &protocol_component) || |
| !protocol_component.is_nonempty()) |
| return false; |
| |
| url::Replacements<char> replacements; |
| replacements.SetScheme(CharactersOrEmpty(new_protocol_utf8), |
| url::Component(0, new_protocol_utf8.length())); |
| ReplaceComponents(replacements); |
| |
| // isValid could be false but we still return true here. This is because |
| // WebCore or JS scripts can build up a URL by setting individual |
| // components, and a JS exception is based on the return value of this |
| // function. We want to throw the exception and stop the script only when |
| // its trying to set a bad protocol, and not when it maybe just hasn't |
| // finished building up its final scheme. |
| return true; |
| } |
| |
| void KURL::SetHost(const String& host) { |
| StringUTF8Adaptor host_utf8(host); |
| url::Replacements<char> replacements; |
| replacements.SetHost(CharactersOrEmpty(host_utf8), |
| url::Component(0, host_utf8.length())); |
| ReplaceComponents(replacements); |
| } |
| |
| static String ParsePortFromStringPosition(const String& value, |
| unsigned port_start) { |
| // "008080junk" needs to be treated as port "8080" and "000" as "0". |
| size_t length = value.length(); |
| unsigned port_end = port_start; |
| while (IsASCIIDigit(value[port_end]) && port_end < length) |
| ++port_end; |
| while (value[port_start] == '0' && port_start < port_end - 1) |
| ++port_start; |
| |
| // Required for backwards compat. |
| // https://www.w3.org/Bugs/Public/show_bug.cgi?id=23463 |
| if (port_start == port_end) |
| return "0"; |
| |
| return value.Substring(port_start, port_end - port_start); |
| } |
| |
| void KURL::SetHostAndPort(const String& host_and_port) { |
| size_t separator = host_and_port.find(':'); |
| if (!separator) |
| return; |
| |
| if (separator == kNotFound) { |
| url::Replacements<char> replacements; |
| StringUTF8Adaptor host_utf8(host_and_port); |
| replacements.SetHost(CharactersOrEmpty(host_utf8), |
| url::Component(0, host_utf8.length())); |
| ReplaceComponents(replacements); |
| return; |
| } |
| |
| String host = host_and_port.Substring(0, separator); |
| String port = ParsePortFromStringPosition(host_and_port, separator + 1); |
| |
| StringUTF8Adaptor host_utf8(host); |
| StringUTF8Adaptor port_utf8(port); |
| |
| url::Replacements<char> replacements; |
| replacements.SetHost(CharactersOrEmpty(host_utf8), |
| url::Component(0, host_utf8.length())); |
| replacements.SetPort(CharactersOrEmpty(port_utf8), |
| url::Component(0, port_utf8.length())); |
| ReplaceComponents(replacements); |
| } |
| |
| void KURL::RemovePort() { |
| if (!HasPort()) |
| return; |
| url::Replacements<char> replacements; |
| replacements.ClearPort(); |
| ReplaceComponents(replacements); |
| } |
| |
| void KURL::SetPort(const String& port) { |
| String parsed_port = ParsePortFromStringPosition(port, 0); |
| SetPort(parsed_port.ToUInt()); |
| } |
| |
| void KURL::SetPort(unsigned short port) { |
| if (IsDefaultPortForProtocol(port, Protocol())) { |
| RemovePort(); |
| return; |
| } |
| |
| String port_string = String::Number(port); |
| DCHECK(port_string.Is8Bit()); |
| |
| url::Replacements<char> replacements; |
| replacements.SetPort(reinterpret_cast<const char*>(port_string.Characters8()), |
| url::Component(0, port_string.length())); |
| ReplaceComponents(replacements); |
| } |
| |
| void KURL::SetUser(const String& user) { |
| // This function is commonly called to clear the username, which we |
| // normally don't have, so we optimize this case. |
| if (user.IsEmpty() && !parsed_.username.is_valid()) |
| return; |
| |
| // The canonicalizer will clear any usernames that are empty, so we |
| // don't have to explicitly call ClearUsername() here. |
| StringUTF8Adaptor user_utf8(user); |
| url::Replacements<char> replacements; |
| replacements.SetUsername(CharactersOrEmpty(user_utf8), |
| url::Component(0, user_utf8.length())); |
| ReplaceComponents(replacements); |
| } |
| |
| void KURL::SetPass(const String& pass) { |
| // This function is commonly called to clear the password, which we |
| // normally don't have, so we optimize this case. |
| if (pass.IsEmpty() && !parsed_.password.is_valid()) |
| return; |
| |
| // The canonicalizer will clear any passwords that are empty, so we |
| // don't have to explicitly call ClearUsername() here. |
| StringUTF8Adaptor pass_utf8(pass); |
| url::Replacements<char> replacements; |
| replacements.SetPassword(CharactersOrEmpty(pass_utf8), |
| url::Component(0, pass_utf8.length())); |
| ReplaceComponents(replacements); |
| } |
| |
| void KURL::SetFragmentIdentifier(const String& fragment) { |
| // This function is commonly called to clear the ref, which we |
| // normally don't have, so we optimize this case. |
| if (fragment.IsNull() && !parsed_.ref.is_valid()) |
| return; |
| |
| StringUTF8Adaptor fragment_utf8(fragment); |
| |
| url::Replacements<char> replacements; |
| if (fragment.IsNull()) |
| replacements.ClearRef(); |
| else |
| replacements.SetRef(CharactersOrEmpty(fragment_utf8), |
| url::Component(0, fragment_utf8.length())); |
| ReplaceComponents(replacements); |
| } |
| |
| void KURL::RemoveFragmentIdentifier() { |
| url::Replacements<char> replacements; |
| replacements.ClearRef(); |
| ReplaceComponents(replacements); |
| } |
| |
| void KURL::SetQuery(const String& query) { |
| StringUTF8Adaptor query_utf8(query); |
| url::Replacements<char> replacements; |
| if (query.IsNull()) { |
| // KURL.cpp sets to null to clear any query. |
| replacements.ClearQuery(); |
| } else if (query.length() > 0 && query[0] == '?') { |
| // WebCore expects the query string to begin with a question mark, but |
| // GoogleURL doesn't. So we trim off the question mark when setting. |
| replacements.SetQuery(CharactersOrEmpty(query_utf8), |
| url::Component(1, query_utf8.length() - 1)); |
| } else { |
| // When set with the empty string or something that doesn't begin with |
| // a question mark, KURL.cpp will add a question mark for you. The only |
| // way this isn't compatible is if you call this function with an empty |
| // string. KURL.cpp will leave a '?' with nothing following it in the |
| // URL, whereas we'll clear it. |
| // FIXME We should eliminate this difference. |
| replacements.SetQuery(CharactersOrEmpty(query_utf8), |
| url::Component(0, query_utf8.length())); |
| } |
| ReplaceComponents(replacements); |
| } |
| |
| void KURL::SetPath(const String& path) { |
| // Empty paths will be canonicalized to "/", so we don't have to worry |
| // about calling ClearPath(). |
| StringUTF8Adaptor path_utf8(path); |
| url::Replacements<char> replacements; |
| replacements.SetPath(CharactersOrEmpty(path_utf8), |
| url::Component(0, path_utf8.length())); |
| ReplaceComponents(replacements); |
| } |
| |
| String DecodeURLEscapeSequences(const String& string, |
| DecodeURLResult* optional_result) { |
| StringUTF8Adaptor string_utf8(string); |
| url::RawCanonOutputT<base::char16> unescaped; |
| DecodeURLResult result = url::DecodeURLEscapeSequences( |
| string_utf8.Data(), string_utf8.length(), &unescaped); |
| if (optional_result) |
| *optional_result = result; |
| return StringImpl::Create8BitIfPossible( |
| reinterpret_cast<UChar*>(unescaped.data()), unescaped.length()); |
| } |
| |
| String EncodeWithURLEscapeSequences(const String& not_encoded_string) { |
| CString utf8 = |
| UTF8Encoding().Encode(not_encoded_string, WTF::kNoUnencodables); |
| |
| url::RawCanonOutputT<char> buffer; |
| int input_length = utf8.length(); |
| if (buffer.capacity() < input_length * 3) |
| buffer.Resize(input_length * 3); |
| |
| url::EncodeURIComponent(utf8.data(), input_length, &buffer); |
| String escaped(buffer.data(), static_cast<unsigned>(buffer.length())); |
| // Unescape '/'; it's safe and much prettier. |
| escaped.Replace("%2F", "/"); |
| return escaped; |
| } |
| |
| bool KURL::IsHierarchical() const { |
| if (string_.IsNull() || !parsed_.scheme.is_nonempty()) |
| return false; |
| return string_.Is8Bit() |
| ? url::IsStandard(AsURLChar8Subtle(string_), parsed_.scheme) |
| : url::IsStandard(string_.Characters16(), parsed_.scheme); |
| } |
| |
| bool EqualIgnoringFragmentIdentifier(const KURL& a, const KURL& b) { |
| // Compute the length of each URL without its ref. Note that the reference |
| // begin (if it exists) points to the character *after* the '#', so we need |
| // to subtract one. |
| int a_length = a.string_.length(); |
| if (a.parsed_.ref.len >= 0) |
| a_length = a.parsed_.ref.begin - 1; |
| |
| int b_length = b.string_.length(); |
| if (b.parsed_.ref.len >= 0) |
| b_length = b.parsed_.ref.begin - 1; |
| |
| if (a_length != b_length) |
| return false; |
| |
| const String& a_string = a.string_; |
| const String& b_string = b.string_; |
| // FIXME: Abstraction this into a function in WTFString.h. |
| for (int i = 0; i < a_length; ++i) { |
| if (a_string[i] != b_string[i]) |
| return false; |
| } |
| return true; |
| } |
| |
| unsigned KURL::HostStart() const { |
| return parsed_.CountCharactersBefore(url::Parsed::HOST, false); |
| } |
| |
| unsigned KURL::HostEnd() const { |
| return parsed_.CountCharactersBefore(url::Parsed::PORT, true); |
| } |
| |
| unsigned KURL::PathStart() const { |
| return parsed_.CountCharactersBefore(url::Parsed::PATH, false); |
| } |
| |
| unsigned KURL::PathEnd() const { |
| return parsed_.CountCharactersBefore(url::Parsed::QUERY, true); |
| } |
| |
| unsigned KURL::PathAfterLastSlash() const { |
| if (string_.IsNull()) |
| return 0; |
| if (!is_valid_ || !parsed_.path.is_valid()) |
| return parsed_.CountCharactersBefore(url::Parsed::PATH, false); |
| url::Component filename; |
| if (string_.Is8Bit()) |
| url::ExtractFileName(AsURLChar8Subtle(string_), parsed_.path, &filename); |
| else |
| url::ExtractFileName(string_.Characters16(), parsed_.path, &filename); |
| return filename.begin; |
| } |
| |
| bool ProtocolIs(const String& url, const char* protocol) { |
| #if DCHECK_IS_ON() |
| AssertProtocolIsGood(protocol); |
| #endif |
| if (url.IsNull()) |
| return false; |
| if (url.Is8Bit()) { |
| return url::FindAndCompareScheme(AsURLChar8Subtle(url), url.length(), |
| protocol, nullptr); |
| } |
| return url::FindAndCompareScheme(url.Characters16(), url.length(), protocol, |
| nullptr); |
| } |
| |
| void KURL::Init(const KURL& base, |
| const String& relative, |
| const WTF::TextEncoding* query_encoding) { |
| // As a performance optimization, we do not use the charset converter |
| // if encoding is UTF-8 or other Unicode encodings. Note that this is |
| // per HTML5 2.5.3 (resolving URL). The URL canonicalizer will be more |
| // efficient with no charset converter object because it can do UTF-8 |
| // internally with no extra copies. |
| |
| StringUTF8Adaptor base_utf8(base.GetString()); |
| |
| // We feel free to make the charset converter object every time since it's |
| // just a wrapper around a reference. |
| KURLCharsetConverter charset_converter_object(query_encoding); |
| KURLCharsetConverter* charset_converter = |
| (!query_encoding || IsUnicodeEncoding(query_encoding)) |
| ? nullptr |
| : &charset_converter_object; |
| |
| // Clamp to int max to avoid overflow. |
| url::RawCanonOutputT<char> output; |
| if (!relative.IsNull() && relative.Is8Bit()) { |
| StringUTF8Adaptor relative_utf8(relative); |
| is_valid_ = url::ResolveRelative(base_utf8.Data(), base_utf8.length(), |
| base.parsed_, relative_utf8.Data(), |
| clampTo<int>(relative_utf8.length()), |
| charset_converter, &output, &parsed_); |
| } else { |
| is_valid_ = url::ResolveRelative(base_utf8.Data(), base_utf8.length(), |
| base.parsed_, relative.Characters16(), |
| clampTo<int>(relative.length()), |
| charset_converter, &output, &parsed_); |
| } |
| |
| // AtomicString::fromUTF8 will re-hash the raw output and check the |
| // AtomicStringTable (addWithTranslator) for the string. This can be very |
| // expensive for large URLs. However, since many URLs are generated from |
| // existing AtomicStrings (which already have their hashes computed), this |
| // fast path is used if the input string is already canonicalized. |
| // |
| // Because this optimization does not apply to non-AtomicStrings, explicitly |
| // check that the input is Atomic before moving forward with it. If we mark |
| // non-Atomic input as Atomic here, we will render the (const) input string |
| // thread unsafe. |
| if (!relative.IsNull() && relative.Impl()->IsAtomic() && |
| StringView(output.data(), static_cast<unsigned>(output.length())) == |
| relative) { |
| string_ = relative; |
| } else { |
| string_ = AtomicString::FromUTF8(output.data(), output.length()); |
| } |
| |
| InitProtocolMetadata(); |
| InitInnerURL(); |
| DCHECK(!::blink::ProtocolIsJavaScript(string_) || ProtocolIsJavaScript()); |
| } |
| |
| void KURL::InitInnerURL() { |
| if (!is_valid_) { |
| inner_url_.reset(); |
| return; |
| } |
| if (url::Parsed* inner_parsed = parsed_.inner_parsed()) { |
| inner_url_ = std::make_unique<KURL>( |
| string_.Substring(inner_parsed->scheme.begin, |
| inner_parsed->Length() - inner_parsed->scheme.begin)); |
| } else { |
| inner_url_.reset(); |
| } |
| } |
| |
| void KURL::InitProtocolMetadata() { |
| if (!is_valid_) { |
| protocol_is_in_http_family_ = false; |
| protocol_ = ComponentString(parsed_.scheme); |
| return; |
| } |
| |
| DCHECK(!string_.IsNull()); |
| StringView protocol = ComponentStringView(parsed_.scheme); |
| protocol_is_in_http_family_ = true; |
| if (protocol == WTF::g_https_atom) { |
| protocol_ = WTF::g_https_atom; |
| } else if (protocol == WTF::g_http_atom) { |
| protocol_ = WTF::g_http_atom; |
| } else { |
| protocol_ = protocol.ToAtomicString(); |
| protocol_is_in_http_family_ = false; |
| } |
| DCHECK_EQ(protocol_, protocol_.DeprecatedLower()); |
| } |
| |
| bool KURL::ProtocolIs(const StringView protocol) const { |
| #if DCHECK_IS_ON() |
| AssertProtocolIsGood(protocol); |
| #endif |
| |
| // JavaScript URLs are "valid" and should be executed even if KURL decides |
| // they are invalid. The free function protocolIsJavaScript() should be used |
| // instead. |
| // FIXME: Chromium code needs to be fixed for this assert to be enabled. |
| // DCHECK(strcmp(protocol, "javascript")); |
| return protocol_ == protocol; |
| } |
| |
| StringView KURL::StringViewForInvalidComponent() const { |
| return string_.IsNull() ? StringView() : StringView(StringImpl::empty_); |
| } |
| |
| StringView KURL::ComponentStringView(const url::Component& component) const { |
| if (!is_valid_ || component.len <= 0) |
| return StringViewForInvalidComponent(); |
| // begin and len are in terms of bytes which do not match |
| // if string() is UTF-16 and input contains non-ASCII characters. |
| // However, the only part in urlString that can contain non-ASCII |
| // characters is 'ref' at the end of the string. In that case, |
| // begin will always match the actual value and len (in terms of |
| // byte) will be longer than what's needed by 'mid'. However, mid |
| // truncates len to avoid go past the end of a string so that we can |
| // get away without doing anything here. |
| |
| int max_length = GetString().length() - component.begin; |
| return StringView(GetString(), component.begin, |
| component.len > max_length ? max_length : component.len); |
| } |
| |
| String KURL::ComponentString(const url::Component& component) const { |
| return ComponentStringView(component).ToString(); |
| } |
| |
| template <typename CHAR> |
| void KURL::ReplaceComponents(const url::Replacements<CHAR>& replacements) { |
| url::RawCanonOutputT<char> output; |
| url::Parsed new_parsed; |
| |
| StringUTF8Adaptor utf8(string_); |
| is_valid_ = |
| url::ReplaceComponents(utf8.Data(), utf8.length(), parsed_, replacements, |
| nullptr, &output, &new_parsed); |
| |
| parsed_ = new_parsed; |
| string_ = AtomicString::FromUTF8(output.data(), output.length()); |
| InitProtocolMetadata(); |
| } |
| |
| bool KURL::IsSafeToSendToAnotherThread() const { |
| return string_.IsSafeToSendToAnotherThread() && |
| (!inner_url_ || inner_url_->IsSafeToSendToAnotherThread()); |
| } |
| |
| KURL::operator GURL() const { |
| StringUTF8Adaptor utf8(string_); |
| return GURL(utf8.Data(), utf8.length(), parsed_, is_valid_); |
| } |
| |
| } // namespace blink |