| /* |
| * 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 "config.h" |
| #include "weborigin/KURL.h" |
| |
| #include "wtf/HashMap.h" |
| #include "wtf/StdLibExtras.h" |
| #include "wtf/text/CString.h" |
| #include "wtf/text/StringHash.h" |
| #include "wtf/text/StringUTF8Adaptor.h" |
| #include "wtf/text/TextEncoding.h" |
| #include <algorithm> |
| #include <url/url_util.h> |
| #ifndef NDEBUG |
| #include <stdio.h> |
| #endif |
| |
| namespace WebCore { |
| |
| static const unsigned maximumValidPortNumber = 0xFFFE; |
| static const unsigned invalidPortNumber = 0xFFFF; |
| |
| static void assertProtocolIsGood(const char* protocol) |
| { |
| #ifndef NDEBUG |
| const char* p = protocol; |
| while (*p) { |
| ASSERT(*p > ' ' && *p < 0x7F && !(*p >= 'A' && *p <= 'Z')); |
| ++p; |
| } |
| #endif |
| } |
| |
| // Note: You must ensure that |spec| is a valid canonicalized URL before calling this function. |
| static const char* asURLChar8Subtle(const String& spec) |
| { |
| ASSERT(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 zero = 0; |
| return string.data() ? string.data() : &zero; |
| } |
| |
| 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 : public url_canon::CharsetConverter { |
| public: |
| // The encoding parameter may be 0, but in this case the object must not be called. |
| explicit KURLCharsetConverter(const WTF::TextEncoding* encoding) |
| : m_encoding(encoding) |
| { |
| } |
| |
| virtual void ConvertFromUTF16(const url_parse::UTF16Char* input, int inputLength, url_canon::CanonOutput* output) |
| { |
| CString encoded = m_encoding->normalizeAndEncode(String(input, inputLength), WTF::URLEncodedEntitiesForUnencodables); |
| output->Append(encoded.data(), static_cast<int>(encoded.length())); |
| } |
| |
| private: |
| const WTF::TextEncoding* m_encoding; |
| }; |
| |
| } // namespace |
| |
| bool isValidProtocol(const String& protocol) |
| { |
| // RFC3986: ALPHA *( ALPHA / DIGIT / "+" / "-" / "." ) |
| if (protocol.isEmpty()) |
| return false; |
| if (!isSchemeFirstChar(protocol[0])) |
| return false; |
| unsigned protocolLength = protocol.length(); |
| for (unsigned i = 1; i < protocolLength; i++) { |
| if (!isSchemeChar(protocol[i])) |
| return false; |
| } |
| return true; |
| } |
| |
| String KURL::strippedForUseAsReferrer() const |
| { |
| KURL referrer(*this); |
| referrer.setUser(String()); |
| referrer.setPass(String()); |
| referrer.removeFragmentIdentifier(); |
| return referrer.string(); |
| } |
| |
| 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, staticBlankURL, (ParsedURLString, "about:blank")); |
| return staticBlankURL; |
| } |
| |
| bool KURL::isBlankURL() const |
| { |
| return protocolIs("about"); |
| } |
| |
| String KURL::elidedString() const |
| { |
| if (string().length() <= 1024) |
| return string(); |
| |
| return string().left(511) + "..." + string().right(510); |
| } |
| |
| // 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(ParsedURLStringTag, const String& url) |
| { |
| if (!url.isNull()) |
| init(KURL(), url, 0); |
| 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. |
| m_isValid = false; |
| m_protocolIsInHTTPFamily = false; |
| } |
| } |
| |
| KURL KURL::createIsolated(ParsedURLStringTag, const String& url) |
| { |
| // FIXME: We should be able to skip this extra copy and created an |
| // isolated KURL more efficiently. |
| return KURL(ParsedURLString, 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, 0); |
| } |
| |
| // 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& canonicalString, const url_parse::Parsed& parsed, bool isValid) |
| : m_isValid(isValid) |
| , m_protocolIsInHTTPFamily(false) |
| , m_parsed(parsed) |
| , m_string(canonicalString) |
| { |
| initProtocolIsInHTTPFamily(); |
| initInnerURL(); |
| } |
| |
| KURL::KURL(WTF::HashTableDeletedValueType) |
| : m_isValid(false) |
| , m_protocolIsInHTTPFamily(false) |
| , m_string(WTF::HashTableDeletedValue) |
| { |
| } |
| |
| KURL::KURL(const KURL& other) |
| : m_isValid(other.m_isValid) |
| , m_protocolIsInHTTPFamily(other.m_protocolIsInHTTPFamily) |
| , m_parsed(other.m_parsed) |
| , m_string(other.m_string) |
| { |
| if (other.m_innerURL.get()) |
| m_innerURL = adoptPtr(new KURL(other.m_innerURL->copy())); |
| } |
| |
| KURL& KURL::operator=(const KURL& other) |
| { |
| m_isValid = other.m_isValid; |
| m_protocolIsInHTTPFamily = other.m_protocolIsInHTTPFamily; |
| m_parsed = other.m_parsed; |
| m_string = other.m_string; |
| if (other.m_innerURL) |
| m_innerURL = adoptPtr(new KURL(other.m_innerURL->copy())); |
| else |
| m_innerURL.clear(); |
| return *this; |
| } |
| |
| KURL KURL::copy() const |
| { |
| KURL result; |
| result.m_isValid = m_isValid; |
| result.m_protocolIsInHTTPFamily = m_protocolIsInHTTPFamily; |
| result.m_parsed = m_parsed; |
| result.m_string = m_string.isolatedCopy(); |
| if (result.m_innerURL) |
| result.m_innerURL = adoptPtr(new KURL(m_innerURL->copy())); |
| return result; |
| } |
| |
| bool KURL::isNull() const |
| { |
| return m_string.isNull(); |
| } |
| |
| bool KURL::isEmpty() const |
| { |
| return m_string.isEmpty(); |
| } |
| |
| bool KURL::isValid() const |
| { |
| return m_isValid; |
| } |
| |
| bool KURL::hasPort() const |
| { |
| return hostEnd() < pathStart(); |
| } |
| |
| bool KURL::protocolIsInHTTPFamily() const |
| { |
| return m_protocolIsInHTTPFamily; |
| } |
| |
| 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 m_parsed.path.len >= 0; |
| } |
| |
| // We handle "parameters" separated by a semicolon, while KURL.cpp does not, |
| // which can lead to different results in some cases. |
| String KURL::lastPathComponent() const |
| { |
| if (!m_isValid) |
| return stringForInvalidComponent(); |
| ASSERT(!m_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_parse::Component path = m_parsed.path; |
| if (path.len > 0 && m_string[path.end() - 1] == '/') |
| path.len--; |
| |
| url_parse::Component file; |
| if (m_string.is8Bit()) |
| url_parse::ExtractFileName(asURLChar8Subtle(m_string), path, &file); |
| else |
| url_parse::ExtractFileName(m_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 |
| { |
| return componentString(m_parsed.scheme); |
| } |
| |
| String KURL::host() const |
| { |
| return componentString(m_parsed.host); |
| } |
| |
| // Returns 0 when there is no port. |
| // |
| // We treat URL's with out-of-range port numbers as invalid URLs, and they will |
| // be rejected by the canonicalizer. KURL.cpp will allow them in parsing, but |
| // return invalidPortNumber from this port() function, so we mirror that behavior here. |
| unsigned short KURL::port() const |
| { |
| if (!m_isValid || m_parsed.port.len <= 0) |
| return 0; |
| ASSERT(!m_string.isNull()); |
| int port = m_string.is8Bit() ? |
| url_parse::ParsePort(asURLChar8Subtle(m_string), m_parsed.port) : |
| url_parse::ParsePort(m_string.characters16(), m_parsed.port); |
| ASSERT(port != url_parse::PORT_UNSPECIFIED); // Checked port.len <= 0 before. |
| |
| if (port == url_parse::PORT_INVALID || port > maximumValidPortNumber) // Mimic KURL::port() |
| port = invalidPortNumber; |
| |
| return static_cast<unsigned short>(port); |
| } |
| |
| 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 (!m_parsed.password.is_nonempty()) |
| return String(); |
| return componentString(m_parsed.password); |
| } |
| |
| String KURL::user() const |
| { |
| return componentString(m_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 (!m_parsed.ref.is_valid()) |
| return String(); |
| return componentString(m_parsed.ref); |
| } |
| |
| bool KURL::hasFragmentIdentifier() const |
| { |
| return m_parsed.ref.len >= 0; |
| } |
| |
| String KURL::baseAsString() const |
| { |
| // FIXME: There is probably a more efficient way to do this? |
| return m_string.left(pathAfterLastSlash()); |
| } |
| |
| String KURL::query() const |
| { |
| if (m_parsed.query.len >= 0) |
| return componentString(m_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 (m_parsed.query.is_valid()) |
| return emptyString(); |
| return String(); |
| } |
| |
| String KURL::path() const |
| { |
| return componentString(m_parsed.path); |
| } |
| |
| bool KURL::setProtocol(const String& protocol) |
| { |
| // Firefox and IE remove everything after the first ':'. |
| int separatorPosition = protocol.find(':'); |
| String newProtocol = protocol.substring(0, separatorPosition); |
| StringUTF8Adaptor newProtocolUTF8(newProtocol); |
| |
| // 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_canon::RawCanonOutputT<char> canonProtocol; |
| url_parse::Component protocolComponent; |
| if (!url_canon::CanonicalizeScheme(newProtocolUTF8.data(), url_parse::Component(0, newProtocolUTF8.length()), &canonProtocol, &protocolComponent) |
| || !protocolComponent.is_nonempty()) |
| return false; |
| |
| url_canon::Replacements<char> replacements; |
| replacements.SetScheme(charactersOrEmpty(newProtocolUTF8), url_parse::Component(0, newProtocolUTF8.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 hostUTF8(host); |
| url_canon::Replacements<char> replacements; |
| replacements.SetHost(charactersOrEmpty(hostUTF8), url_parse::Component(0, hostUTF8.length())); |
| replaceComponents(replacements); |
| } |
| |
| void KURL::setHostAndPort(const String& hostAndPort) |
| { |
| String host = hostAndPort; |
| String port; |
| int hostEnd = hostAndPort.find(":"); |
| if (hostEnd != -1) { |
| host = hostAndPort.left(hostEnd); |
| port = hostAndPort.substring(hostEnd + 1); |
| } |
| |
| StringUTF8Adaptor hostUTF8(host); |
| StringUTF8Adaptor portUTF8(port); |
| |
| url_canon::Replacements<char> replacements; |
| // Host can't be removed, so we always set. |
| replacements.SetHost(charactersOrEmpty(hostUTF8), url_parse::Component(0, hostUTF8.length())); |
| |
| if (!portUTF8.length()) // Port may be removed, so we support clearing. |
| replacements.ClearPort(); |
| else |
| replacements.SetPort(charactersOrEmpty(portUTF8), url_parse::Component(0, portUTF8.length())); |
| |
| replaceComponents(replacements); |
| } |
| |
| void KURL::removePort() |
| { |
| if (!hasPort()) |
| return; |
| url_canon::Replacements<char> replacements; |
| replacements.ClearPort(); |
| replaceComponents(replacements); |
| } |
| |
| void KURL::setPort(unsigned short i) |
| { |
| String portString = String::number(i); |
| ASSERT(portString.is8Bit()); |
| |
| url_canon::Replacements<char> replacements; |
| replacements.SetPort(reinterpret_cast<const char*>(portString.characters8()), url_parse::Component(0, portString.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() && !m_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 userUTF8(user); |
| url_canon::Replacements<char> replacements; |
| replacements.SetUsername(charactersOrEmpty(userUTF8), url_parse::Component(0, userUTF8.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() && !m_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 passUTF8(pass); |
| url_canon::Replacements<char> replacements; |
| replacements.SetPassword(charactersOrEmpty(passUTF8), url_parse::Component(0, passUTF8.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() && !m_parsed.ref.is_valid()) |
| return; |
| |
| StringUTF8Adaptor fragmentUTF8(fragment); |
| |
| url_canon::Replacements<char> replacements; |
| if (fragment.isNull()) |
| replacements.ClearRef(); |
| else |
| replacements.SetRef(charactersOrEmpty(fragmentUTF8), url_parse::Component(0, fragmentUTF8.length())); |
| replaceComponents(replacements); |
| } |
| |
| void KURL::removeFragmentIdentifier() |
| { |
| url_canon::Replacements<char> replacements; |
| replacements.ClearRef(); |
| replaceComponents(replacements); |
| } |
| |
| void KURL::setQuery(const String& query) |
| { |
| StringUTF8Adaptor queryUTF8(query); |
| url_canon::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(queryUTF8), url_parse::Component(1, queryUTF8.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(queryUTF8), url_parse::Component(0, queryUTF8.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 pathUTF8(path); |
| url_canon::Replacements<char> replacements; |
| replacements.SetPath(charactersOrEmpty(pathUTF8), url_parse::Component(0, pathUTF8.length())); |
| replaceComponents(replacements); |
| } |
| |
| String decodeURLEscapeSequences(const String& string) |
| { |
| return decodeURLEscapeSequences(string, UTF8Encoding()); |
| } |
| |
| // In KURL.cpp's implementation, this is called by every component getter. |
| // It will unescape every character, including '\0'. This is scary, and may |
| // cause security holes. We never call this function for components, and |
| // just return the ASCII versions instead. |
| // |
| // This function is also used to decode javascript: URLs and as a general |
| // purpose unescaping function. |
| // |
| // FIXME These should be merged to the KURL.cpp implementation. |
| String decodeURLEscapeSequences(const String& string, const WTF::TextEncoding& encoding) |
| { |
| // FIXME We can probably use KURL.cpp's version of this function |
| // without modification. However, I'm concerned about |
| // https://bugs.webkit.org/show_bug.cgi?id=20559 so am keeping this old |
| // custom code for now. Using their version will also fix the bug that |
| // we ignore the encoding. |
| // |
| // FIXME b/1350291: This does not get called very often. We just convert |
| // first to 8-bit UTF-8, then unescape, then back to 16-bit. This kind of |
| // sucks, and we don't use the encoding properly, which will make some |
| // obscure anchor navigations fail. |
| StringUTF8Adaptor stringUTF8(string); |
| url_canon::RawCanonOutputT<url_parse::UTF16Char> unescaped; |
| url_util::DecodeURLEscapeSequences(stringUTF8.data(), stringUTF8.length(), &unescaped); |
| return StringImpl::create8BitIfPossible(reinterpret_cast<UChar*>(unescaped.data()), unescaped.length()); |
| } |
| |
| String encodeWithURLEscapeSequences(const String& notEncodedString) |
| { |
| CString utf8 = UTF8Encoding().normalizeAndEncode(notEncodedString, WTF::URLEncodedEntitiesForUnencodables); |
| |
| url_canon::RawCanonOutputT<char> buffer; |
| int inputLength = utf8.length(); |
| if (buffer.length() < inputLength * 3) |
| buffer.Resize(inputLength * 3); |
| |
| url_util::EncodeURIComponent(utf8.data(), inputLength, &buffer); |
| String escaped(buffer.data(), buffer.length()); |
| // Unescape '/'; it's safe and much prettier. |
| escaped.replace("%2F", "/"); |
| return escaped; |
| } |
| |
| bool KURL::isHierarchical() const |
| { |
| if (m_string.isNull() || !m_parsed.scheme.is_nonempty()) |
| return false; |
| return m_string.is8Bit() ? |
| url_util::IsStandard(asURLChar8Subtle(m_string), m_parsed.scheme) : |
| url_util::IsStandard(m_string.characters16(), m_parsed.scheme); |
| } |
| |
| #ifndef NDEBUG |
| void KURL::print() const |
| { |
| printf("%s\n", m_string.utf8().data()); |
| } |
| #endif |
| |
| 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 aLength = a.m_string.length(); |
| if (a.m_parsed.ref.len >= 0) |
| aLength = a.m_parsed.ref.begin - 1; |
| |
| int bLength = b.m_string.length(); |
| if (b.m_parsed.ref.len >= 0) |
| bLength = b.m_parsed.ref.begin - 1; |
| |
| if (aLength != bLength) |
| return false; |
| |
| const String& aString = a.m_string; |
| const String& bString = b.m_string; |
| // FIXME: Abstraction this into a function in WTFString.h. |
| for (int i = 0; i < aLength; ++i) { |
| if (aString[i] != bString[i]) |
| return false; |
| } |
| return true; |
| } |
| |
| unsigned KURL::hostStart() const |
| { |
| return m_parsed.CountCharactersBefore(url_parse::Parsed::HOST, false); |
| } |
| |
| unsigned KURL::hostEnd() const |
| { |
| return m_parsed.CountCharactersBefore(url_parse::Parsed::PORT, true); |
| } |
| |
| unsigned KURL::pathStart() const |
| { |
| return m_parsed.CountCharactersBefore(url_parse::Parsed::PATH, false); |
| } |
| |
| unsigned KURL::pathEnd() const |
| { |
| return m_parsed.CountCharactersBefore(url_parse::Parsed::QUERY, true); |
| } |
| |
| unsigned KURL::pathAfterLastSlash() const |
| { |
| if (m_string.isNull()) |
| return 0; |
| if (!m_isValid || !m_parsed.path.is_valid()) |
| return m_parsed.CountCharactersBefore(url_parse::Parsed::PATH, false); |
| url_parse::Component filename; |
| if (m_string.is8Bit()) |
| url_parse::ExtractFileName(asURLChar8Subtle(m_string), m_parsed.path, &filename); |
| else |
| url_parse::ExtractFileName(m_string.characters16(), m_parsed.path, &filename); |
| return filename.begin; |
| } |
| |
| bool protocolIs(const String& url, const char* protocol) |
| { |
| assertProtocolIsGood(protocol); |
| if (url.isNull()) |
| return false; |
| if (url.is8Bit()) |
| return url_util::FindAndCompareScheme(asURLChar8Subtle(url), url.length(), protocol, 0); |
| return url_util::FindAndCompareScheme(url.characters16(), url.length(), protocol, 0); |
| } |
| |
| void KURL::init(const KURL& base, const String& relative, const WTF::TextEncoding* queryEncoding) |
| { |
| if (!relative.isNull() && relative.is8Bit()) { |
| StringUTF8Adaptor relativeUTF8(relative); |
| init(base, relativeUTF8.data(), relativeUTF8.length(), queryEncoding); |
| } else |
| init(base, relative.characters16(), relative.length(), queryEncoding); |
| initProtocolIsInHTTPFamily(); |
| initInnerURL(); |
| } |
| |
| template <typename CHAR> |
| void KURL::init(const KURL& base, const CHAR* relative, int relativeLength, const WTF::TextEncoding* queryEncoding) |
| { |
| // 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. |
| |
| // We feel free to make the charset converter object every time since it's |
| // just a wrapper around a reference. |
| KURLCharsetConverter charsetConverterObject(queryEncoding); |
| KURLCharsetConverter* charsetConverter = (!queryEncoding || isUnicodeEncoding(queryEncoding)) ? 0 : &charsetConverterObject; |
| |
| StringUTF8Adaptor baseUTF8(base.string()); |
| |
| url_canon::RawCanonOutputT<char> output; |
| m_isValid = url_util::ResolveRelative(baseUTF8.data(), baseUTF8.length(), base.m_parsed, relative, relativeLength, charsetConverter, &output, &m_parsed); |
| |
| // See FIXME in KURLPrivate in the header. If canonicalization has not |
| // changed the string, we can avoid an extra allocation by using assignment. |
| m_string = AtomicString::fromUTF8(output.data(), output.length()); |
| } |
| |
| void KURL::initInnerURL() |
| { |
| if (!m_isValid) { |
| m_innerURL.clear(); |
| return; |
| } |
| if (url_parse::Parsed* innerParsed = m_parsed.inner_parsed()) |
| m_innerURL = adoptPtr(new KURL(ParsedURLString, m_string.substring(innerParsed->scheme.begin, innerParsed->Length() - innerParsed->scheme.begin))); |
| else |
| m_innerURL.clear(); |
| } |
| |
| template<typename CHAR> |
| bool internalProtocolIs(const url_parse::Component& scheme, const CHAR* spec, const char* protocol) |
| { |
| const CHAR* begin = spec + scheme.begin; |
| const CHAR* end = begin + scheme.len; |
| |
| while (begin != end && *protocol) { |
| ASSERT(toASCIILower(*protocol) == *protocol); |
| if (toASCIILower(*begin++) != *protocol++) |
| return false; |
| } |
| |
| // Both strings are equal (ignoring case) if and only if all of the characters were equal, |
| // and the end of both has been reached. |
| return begin == end && !*protocol; |
| } |
| |
| template<typename CHAR> |
| bool checkIfProtocolIsInHTTPFamily(const url_parse::Component& scheme, const CHAR* spec) |
| { |
| if (scheme.len == 4) |
| return internalProtocolIs(scheme, spec, "http"); |
| if (scheme.len == 5) |
| return internalProtocolIs(scheme, spec, "https"); |
| return false; |
| } |
| |
| void KURL::initProtocolIsInHTTPFamily() |
| { |
| if (!m_isValid) { |
| m_protocolIsInHTTPFamily = false; |
| return; |
| } |
| |
| ASSERT(!m_string.isNull()); |
| m_protocolIsInHTTPFamily = m_string.is8Bit() ? |
| checkIfProtocolIsInHTTPFamily(m_parsed.scheme, m_string.characters8()) : |
| checkIfProtocolIsInHTTPFamily(m_parsed.scheme, m_string.characters16()); |
| } |
| |
| bool KURL::protocolIs(const char* protocol) const |
| { |
| assertProtocolIsGood(protocol); |
| |
| // 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. ASSERT(strcmp(protocol, "javascript")); |
| |
| if (m_string.isNull() || m_parsed.scheme.len <= 0) |
| return *protocol == '\0'; |
| |
| return m_string.is8Bit() ? |
| internalProtocolIs(m_parsed.scheme, m_string.characters8(), protocol) : |
| internalProtocolIs(m_parsed.scheme, m_string.characters16(), protocol); |
| } |
| |
| String KURL::stringForInvalidComponent() const |
| { |
| if (m_string.isNull()) |
| return String(); |
| return emptyString(); |
| } |
| |
| String KURL::componentString(const url_parse::Component& component) const |
| { |
| if (!m_isValid || component.len <= 0) |
| return stringForInvalidComponent(); |
| // 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. |
| return string().substring(component.begin, component.len); |
| } |
| |
| template<typename CHAR> |
| void KURL::replaceComponents(const url_canon::Replacements<CHAR>& replacements) |
| { |
| url_canon::RawCanonOutputT<char> output; |
| url_parse::Parsed newParsed; |
| |
| StringUTF8Adaptor utf8(m_string); |
| m_isValid = url_util::ReplaceComponents(utf8.data(), utf8.length(), m_parsed, replacements, 0, &output, &newParsed); |
| |
| m_parsed = newParsed; |
| m_string = AtomicString::fromUTF8(output.data(), output.length()); |
| } |
| |
| bool KURL::isSafeToSendToAnotherThread() const |
| { |
| return m_string.isSafeToSendToAnotherThread() |
| && (!m_innerURL || m_innerURL->isSafeToSendToAnotherThread()); |
| } |
| |
| } // namespace WebCore |