Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 387 insertions, 0 deletions

diff --git a/Source/WebCore/platform/KURL.h b/Source/WebCore/platform/KURL.h
new file mode 100644
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--- /dev/null
+++ b/Source/WebCore/platform/KURL.h
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+/*
+ * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple 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 COMPUTER, 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. 
+ */
+
+#ifndef KURL_h
+#define KURL_h
+
+#include "PlatformString.h"
+#include <wtf/HashMap.h>
+
+#if PLATFORM(CF)
+typedef const struct __CFURL* CFURLRef;
+#endif
+
+#if PLATFORM(MAC)
+#ifdef __OBJC__
+@class NSURL;
+#else
+class NSURL;
+#endif
+#endif
+
+#if PLATFORM(QT)
+QT_BEGIN_NAMESPACE
+class QUrl;
+QT_END_NAMESPACE
+#endif
+
+#if USE(GOOGLEURL)
+#include "KURLGooglePrivate.h"
+#endif
+
+#if USE(JSC)
+#include <runtime/UString.h>
+#endif
+
+namespace WebCore {
+
+class TextEncoding;
+struct KURLHash;
+
+typedef HashMap<String, String> ParsedURLParameters;
+
+enum ParsedURLStringTag { ParsedURLString };
+
+class KURL {
+public:
+    // Generates a URL which contains a null string.
+    KURL() { invalidate(); }
+
+    // The argument is an absolute URL string. The string is assumed to be output of KURL::string() called on a valid
+    // KURL object, or indiscernible from such.
+    // It is usually best to avoid repeatedly parsing a string, unless memory saving outweigh the possible slow-downs.
+    KURL(ParsedURLStringTag, const char*);
+    KURL(ParsedURLStringTag, const String&);
+
+    // Resolves the relative URL with the given base URL. If provided, the
+    // TextEncoding is used to encode non-ASCII characers. The base URL can be
+    // null or empty, in which case the relative URL will be interpreted as
+    // absolute.
+    // FIXME: If the base URL is invalid, this always creates an invalid
+    // URL. Instead I think it would be better to treat all invalid base URLs
+    // the same way we treate null and empty base URLs.
+    KURL(const KURL& base, const String& relative);
+    KURL(const KURL& base, const String& relative, const TextEncoding&);
+
+
+#if USE(GOOGLEURL)
+    // For conversions for other structures that have already parsed and
+    // canonicalized the URL. The input must be exactly what KURL would have
+    // done with the same input.
+    KURL(const CString& canonicalSpec,
+         const url_parse::Parsed& parsed, bool isValid);
+#endif
+
+    // FIXME: The above functions should be harmonized so that passing a
+    // base of null or the empty string gives the same result as the
+    // standard String constructor.
+
+    // Makes a deep copy. Helpful only if you need to use a KURL on another
+    // thread.  Since the underlying StringImpl objects are immutable, there's
+    // no other reason to ever prefer copy() over plain old assignment.
+    KURL copy() const;
+
+    bool isNull() const;
+    bool isEmpty() const;
+    bool isValid() const;
+
+    // Returns true if this URL has a path. Note that "http://foo.com/" has a
+    // path of "/", so this function will return true. Only invalid or
+    // non-hierarchical (like "javascript:") URLs will have no path.
+    bool hasPath() const;
+
+    // Returns true if you can set the host and port for the URL.
+    // Non-hierarchical URLs don't have a host and port.
+    bool canSetHostOrPort() const { return isHierarchical(); }
+
+    bool canSetPathname() const { return isHierarchical(); }
+    
+#if USE(GOOGLEURL)
+    const String& string() const { return m_url.string(); }
+#else
+    const String& string() const { return m_string; }
+#endif
+
+    String protocol() const;
+    String host() const;
+    unsigned short port() const;
+    bool hasPort() const;
+    String user() const;
+    String pass() const;
+    String path() const;
+    String lastPathComponent() const;
+    String query() const;
+    String fragmentIdentifier() const;
+    bool hasFragmentIdentifier() const;
+
+    void copyParsedQueryTo(ParsedURLParameters&) const;
+
+    String baseAsString() const;
+
+    String prettyURL() const;
+    String fileSystemPath() const;
+
+    // Returns true if the current URL's protocol is the same as the null-
+    // terminated ASCII argument. The argument must be lower-case.
+    bool protocolIs(const char*) const;
+    bool protocolIsData() const { return protocolIs("data"); }
+    bool protocolInHTTPFamily() const;
+    bool isLocalFile() const;
+
+    bool setProtocol(const String&);
+    void setHost(const String&);
+
+    void removePort();
+    void setPort(unsigned short);
+
+    // Input is like "foo.com" or "foo.com:8000".
+    void setHostAndPort(const String&);
+
+    void setUser(const String&);
+    void setPass(const String&);
+
+    // If you pass an empty path for HTTP or HTTPS URLs, the resulting path
+    // will be "/".
+    void setPath(const String&);
+
+    // The query may begin with a question mark, or, if not, one will be added
+    // for you. Setting the query to the empty string will leave a "?" in the
+    // URL (with nothing after it). To clear the query, pass a null string.
+    void setQuery(const String&);
+
+    void setFragmentIdentifier(const String&);
+    void removeFragmentIdentifier();
+
+    friend bool equalIgnoringFragmentIdentifier(const KURL&, const KURL&);
+
+    friend bool protocolHostAndPortAreEqual(const KURL&, const KURL&);
+
+    unsigned hostStart() const;
+    unsigned hostEnd() const;
+
+    unsigned pathStart() const;
+    unsigned pathEnd() const;
+    unsigned pathAfterLastSlash() const;
+    operator const String&() const { return string(); }
+
+#if PLATFORM(CF)
+    KURL(CFURLRef);
+    CFURLRef createCFURL() const;
+#endif
+
+#if PLATFORM(MAC)
+    KURL(NSURL*);
+    operator NSURL*() const;
+#endif
+#ifdef __OBJC__
+    operator NSString*() const { return string(); }
+#endif
+
+#if PLATFORM(QT)
+    KURL(const QUrl&);
+    operator QUrl() const;
+#endif
+
+#if USE(GOOGLEURL)
+    // Getters for the parsed structure and its corresponding 8-bit string.
+    const url_parse::Parsed& parsed() const { return m_url.m_parsed; }
+    const CString& utf8String() const { return m_url.utf8String(); }
+#endif
+
+#ifndef NDEBUG
+    void print() const;
+#endif
+
+private:
+    void invalidate();
+    bool isHierarchical() const;
+    static bool protocolIs(const String&, const char*);
+#if USE(GOOGLEURL)
+    friend class KURLGooglePrivate;
+    void parse(const char* url, const String* originalString);  // KURLMac calls this.
+    void copyToBuffer(Vector<char, 512>& buffer) const;  // KURLCFNet uses this.
+    KURLGooglePrivate m_url;
+#else  // !USE(GOOGLEURL)
+    void init(const KURL&, const String&, const TextEncoding&);
+    void copyToBuffer(Vector<char, 512>& buffer) const;
+
+    // Parses the given URL. The originalString parameter allows for an
+    // optimization: When the source is the same as the fixed-up string,
+    // it will use the passed-in string instead of allocating a new one.
+    void parse(const String&);
+    void parse(const char* url, const String* originalString);
+
+    String m_string;
+    bool m_isValid : 1;
+    bool m_protocolInHTTPFamily : 1;
+
+    int m_schemeEnd;
+    int m_userStart;
+    int m_userEnd;
+    int m_passwordEnd;
+    int m_hostEnd;
+    int m_portEnd;
+    int m_pathAfterLastSlash;
+    int m_pathEnd;
+    int m_queryEnd;
+    int m_fragmentEnd;
+#endif
+};
+
+bool operator==(const KURL&, const KURL&);
+bool operator==(const KURL&, const String&);
+bool operator==(const String&, const KURL&);
+bool operator!=(const KURL&, const KURL&);
+bool operator!=(const KURL&, const String&);
+bool operator!=(const String&, const KURL&);
+
+bool equalIgnoringFragmentIdentifier(const KURL&, const KURL&);
+bool protocolHostAndPortAreEqual(const KURL&, const KURL&);
+    
+const KURL& blankURL();
+
+// Functions to do URL operations on strings.
+// These are operations that aren't faster on a parsed URL.
+// These are also different from the KURL functions in that they don't require the string to be a valid and parsable URL.
+// This is especially important because valid javascript URLs are not necessarily considered valid by KURL.
+
+bool protocolIs(const String& url, const char* protocol);
+bool protocolIsJavaScript(const String& url);
+
+bool isDefaultPortForProtocol(unsigned short port, const String& protocol);
+bool portAllowed(const KURL&); // Blacklist ports that should never be used for Web resources.
+
+String mimeTypeFromDataURL(const String& url);
+
+// Unescapes the given string using URL escaping rules, given an optional
+// encoding (defaulting to UTF-8 otherwise). DANGER: If the URL has "%00"
+// in it, the resulting string will have embedded null characters!
+String decodeURLEscapeSequences(const String&);
+String decodeURLEscapeSequences(const String&, const TextEncoding&);
+
+String encodeWithURLEscapeSequences(const String&);
+
+// Inlines.
+
+inline bool operator==(const KURL& a, const KURL& b)
+{
+    return a.string() == b.string();
+}
+
+inline bool operator==(const KURL& a, const String& b)
+{
+    return a.string() == b;
+}
+
+inline bool operator==(const String& a, const KURL& b)
+{
+    return a == b.string();
+}
+
+inline bool operator!=(const KURL& a, const KURL& b)
+{
+    return a.string() != b.string();
+}
+
+inline bool operator!=(const KURL& a, const String& b)
+{
+    return a.string() != b;
+}
+
+inline bool operator!=(const String& a, const KURL& b)
+{
+    return a != b.string();
+}
+
+#if !USE(GOOGLEURL)
+
+// Inline versions of some non-GoogleURL functions so we can get inlining
+// without having to have a lot of ugly ifdefs in the class definition.
+
+inline bool KURL::isNull() const
+{
+    return m_string.isNull();
+}
+
+inline bool KURL::isEmpty() const
+{
+    return m_string.isEmpty();
+}
+
+inline bool KURL::isValid() const
+{
+    return m_isValid;
+}
+
+inline bool KURL::hasPort() const
+{
+    return m_hostEnd < m_portEnd;
+}
+
+inline bool KURL::protocolInHTTPFamily() const
+{
+    return m_protocolInHTTPFamily;
+}
+
+inline unsigned KURL::hostStart() const
+{
+    return (m_passwordEnd == m_userStart) ? m_passwordEnd : m_passwordEnd + 1;
+}
+
+inline unsigned KURL::hostEnd() const
+{
+    return m_hostEnd;
+}
+
+inline unsigned KURL::pathStart() const
+{
+    return m_portEnd;
+}
+
+inline unsigned KURL::pathEnd() const
+{
+    return m_pathEnd;
+}
+
+inline unsigned KURL::pathAfterLastSlash() const
+{
+    return m_pathAfterLastSlash;
+}
+
+#endif  // !USE(GOOGLEURL)
+
+} // namespace WebCore
+
+namespace WTF {
+
+    // KURLHash is the default hash for String
+    template<typename T> struct DefaultHash;
+    template<> struct DefaultHash<WebCore::KURL> {
+        typedef WebCore::KURLHash Hash;
+    };
+
+} // namespace WTF
+
+#endif // KURL_h