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Unified Diff: src/url_canon.h

Issue 14090005: Modify the headers in src/ to forward to url/*.h (Closed) Base URL: http://google-url.googlecode.com/svn/trunk
Patch Set: Created 7 years, 8 months ago
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Index: src/url_canon.h
diff --git a/src/url_canon.h b/src/url_canon.h
index 00ae715af598d16e0adedcc068065134019ef3a1..498e6adb341b970c87cafc06d028452a0a3ade6d 100644
--- a/src/url_canon.h
+++ b/src/url_canon.h
@@ -29,884 +29,6 @@
#ifndef GOOGLEURL_SRC_URL_CANON_H__
#define GOOGLEURL_SRC_URL_CANON_H__
-#include <string.h>
-#include <stdlib.h>
-
-#include "base/string16.h"
-#include "googleurl/src/url_common.h"
-#include "googleurl/src/url_parse.h"
-
-namespace url_canon {
-
-// Canonicalizer output -------------------------------------------------------
-
-// Base class for the canonicalizer output, this maintains a buffer and
-// supports simple resizing and append operations on it.
-//
-// It is VERY IMPORTANT that no virtual function calls be made on the common
-// code path. We only have two virtual function calls, the destructor and a
-// resize function that is called when the existing buffer is not big enough.
-// The derived class is then in charge of setting up our buffer which we will
-// manage.
-template<typename T>
-class CanonOutputT {
- public:
- CanonOutputT() : buffer_(NULL), buffer_len_(0), cur_len_(0) {
- }
- virtual ~CanonOutputT() {
- }
-
- // Implemented to resize the buffer. This function should update the buffer
- // pointer to point to the new buffer, and any old data up to |cur_len_| in
- // the buffer must be copied over.
- //
- // The new size |sz| must be larger than buffer_len_.
- virtual void Resize(int sz) = 0;
-
- // Accessor for returning a character at a given position. The input offset
- // must be in the valid range.
- inline char at(int offset) const {
- return buffer_[offset];
- }
-
- // Sets the character at the given position. The given position MUST be less
- // than the length().
- inline void set(int offset, int ch) {
- buffer_[offset] = ch;
- }
-
- // Returns the number of characters currently in the buffer.
- inline int length() const {
- return cur_len_;
- }
-
- // Returns the current capacity of the buffer. The length() is the number of
- // characters that have been declared to be written, but the capacity() is
- // the number that can be written without reallocation. If the caller must
- // write many characters at once, it can make sure there is enough capacity,
- // write the data, then use set_size() to declare the new length().
- int capacity() const {
- return buffer_len_;
- }
-
- // Called by the user of this class to get the output. The output will NOT
- // be NULL-terminated. Call length() to get the
- // length.
- const T* data() const {
- return buffer_;
- }
- T* data() {
- return buffer_;
- }
-
- // Shortens the URL to the new length. Used for "backing up" when processing
- // relative paths. This can also be used if an external function writes a lot
- // of data to the buffer (when using the "Raw" version below) beyond the end,
- // to declare the new length.
- //
- // This MUST NOT be used to expand the size of the buffer beyond capacity().
- void set_length(int new_len) {
- cur_len_ = new_len;
- }
-
- // This is the most performance critical function, since it is called for
- // every character.
- void push_back(T ch) {
- // In VC2005, putting this common case first speeds up execution
- // dramatically because this branch is predicted as taken.
- if (cur_len_ < buffer_len_) {
- buffer_[cur_len_] = ch;
- cur_len_++;
- return;
- }
-
- // Grow the buffer to hold at least one more item. Hopefully we won't have
- // to do this very often.
- if (!Grow(1))
- return;
-
- // Actually do the insertion.
- buffer_[cur_len_] = ch;
- cur_len_++;
- }
-
- // Appends the given string to the output.
- void Append(const T* str, int str_len) {
- if (cur_len_ + str_len > buffer_len_) {
- if (!Grow(cur_len_ + str_len - buffer_len_))
- return;
- }
- for (int i = 0; i < str_len; i++)
- buffer_[cur_len_ + i] = str[i];
- cur_len_ += str_len;
- }
-
- protected:
- // Grows the given buffer so that it can fit at least |min_additional|
- // characters. Returns true if the buffer could be resized, false on OOM.
- bool Grow(int min_additional) {
- static const int kMinBufferLen = 16;
- int new_len = (buffer_len_ == 0) ? kMinBufferLen : buffer_len_;
- do {
- if (new_len >= (1 << 30)) // Prevent overflow below.
- return false;
- new_len *= 2;
- } while (new_len < buffer_len_ + min_additional);
- Resize(new_len);
- return true;
- }
-
- T* buffer_;
- int buffer_len_;
-
- // Used characters in the buffer.
- int cur_len_;
-};
-
-// Simple implementation of the CanonOutput using new[]. This class
-// also supports a static buffer so if it is allocated on the stack, most
-// URLs can be canonicalized with no heap allocations.
-template<typename T, int fixed_capacity = 1024>
-class RawCanonOutputT : public CanonOutputT<T> {
- public:
- RawCanonOutputT() : CanonOutputT<T>() {
- this->buffer_ = fixed_buffer_;
- this->buffer_len_ = fixed_capacity;
- }
- virtual ~RawCanonOutputT() {
- if (this->buffer_ != fixed_buffer_)
- delete[] this->buffer_;
- }
-
- virtual void Resize(int sz) {
- T* new_buf = new T[sz];
- memcpy(new_buf, this->buffer_,
- sizeof(T) * (this->cur_len_ < sz ? this->cur_len_ : sz));
- if (this->buffer_ != fixed_buffer_)
- delete[] this->buffer_;
- this->buffer_ = new_buf;
- this->buffer_len_ = sz;
- }
-
- protected:
- T fixed_buffer_[fixed_capacity];
-};
-
-// Normally, all canonicalization output is in narrow characters. We support
-// the templates so it can also be used internally if a wide buffer is
-// required.
-typedef CanonOutputT<char> CanonOutput;
-typedef CanonOutputT<char16> CanonOutputW;
-
-template<int fixed_capacity>
-class RawCanonOutput : public RawCanonOutputT<char, fixed_capacity> {};
-template<int fixed_capacity>
-class RawCanonOutputW : public RawCanonOutputT<char16, fixed_capacity> {};
-
-// Character set converter ----------------------------------------------------
-//
-// Converts query strings into a custom encoding. The embedder can supply an
-// implementation of this class to interface with their own character set
-// conversion libraries.
-//
-// Embedders will want to see the unit test for the ICU version.
-
-class CharsetConverter {
- public:
- CharsetConverter() {}
- virtual ~CharsetConverter() {}
-
- // Converts the given input string from UTF-16 to whatever output format the
- // converter supports. This is used only for the query encoding conversion,
- // which does not fail. Instead, the converter should insert "invalid
- // character" characters in the output for invalid sequences, and do the
- // best it can.
- //
- // If the input contains a character not representable in the output
- // character set, the converter should append the HTML entity sequence in
- // decimal, (such as "&#20320;") with escaping of the ampersand, number
- // sign, and semicolon (in the previous example it would be
- // "%26%2320320%3B"). This rule is based on what IE does in this situation.
- virtual void ConvertFromUTF16(const char16* input,
- int input_len,
- CanonOutput* output) = 0;
-};
-
-// Whitespace -----------------------------------------------------------------
-
-// Searches for whitespace that should be removed from the middle of URLs, and
-// removes it. Removed whitespace are tabs and newlines, but NOT spaces. Spaces
-// are preserved, which is what most browsers do. A pointer to the output will
-// be returned, and the length of that output will be in |output_len|.
-//
-// This should be called before parsing if whitespace removal is desired (which
-// it normally is when you are canonicalizing).
-//
-// If no whitespace is removed, this function will not use the buffer and will
-// return a pointer to the input, to avoid the extra copy. If modification is
-// required, the given |buffer| will be used and the returned pointer will
-// point to the beginning of the buffer.
-//
-// Therefore, callers should not use the buffer, since it may actuall be empty,
-// use the computed pointer and |*output_len| instead.
-GURL_API const char* RemoveURLWhitespace(const char* input, int input_len,
- CanonOutputT<char>* buffer,
- int* output_len);
-GURL_API const char16* RemoveURLWhitespace(const char16* input, int input_len,
- CanonOutputT<char16>* buffer,
- int* output_len);
-
-// IDN ------------------------------------------------------------------------
-
-// Converts the Unicode input representing a hostname to ASCII using IDN rules.
-// The output must fall in the ASCII range, but will be encoded in UTF-16.
-//
-// On success, the output will be filled with the ASCII host name and it will
-// return true. Unlike most other canonicalization functions, this assumes that
-// the output is empty. The beginning of the host will be at offset 0, and
-// the length of the output will be set to the length of the new host name.
-//
-// On error, returns false. The output in this case is undefined.
-GURL_API bool IDNToASCII(const char16* src, int src_len, CanonOutputW* output);
-
-// Piece-by-piece canonicalizers ----------------------------------------------
-//
-// These individual canonicalizers append the canonicalized versions of the
-// corresponding URL component to the given std::string. The spec and the
-// previously-identified range of that component are the input. The range of
-// the canonicalized component will be written to the output component.
-//
-// These functions all append to the output so they can be chained. Make sure
-// the output is empty when you start.
-//
-// These functions returns boolean values indicating success. On failure, they
-// will attempt to write something reasonable to the output so that, if
-// displayed to the user, they will recognise it as something that's messed up.
-// Nothing more should ever be done with these invalid URLs, however.
-
-// Scheme: Appends the scheme and colon to the URL. The output component will
-// indicate the range of characters up to but not including the colon.
-//
-// Canonical URLs always have a scheme. If the scheme is not present in the
-// input, this will just write the colon to indicate an empty scheme. Does not
-// append slashes which will be needed before any authority components for most
-// URLs.
-//
-// The 8-bit version requires UTF-8 encoding.
-GURL_API bool CanonicalizeScheme(const char* spec,
- const url_parse::Component& scheme,
- CanonOutput* output,
- url_parse::Component* out_scheme);
-GURL_API bool CanonicalizeScheme(const char16* spec,
- const url_parse::Component& scheme,
- CanonOutput* output,
- url_parse::Component* out_scheme);
-
-// User info: username/password. If present, this will add the delimiters so
-// the output will be "<username>:<password>@" or "<username>@". Empty
-// username/password pairs, or empty passwords, will get converted to
-// nonexistant in the canonical version.
-//
-// The components for the username and password refer to ranges in the
-// respective source strings. Usually, these will be the same string, which
-// is legal as long as the two components don't overlap.
-//
-// The 8-bit version requires UTF-8 encoding.
-GURL_API bool CanonicalizeUserInfo(const char* username_source,
- const url_parse::Component& username,
- const char* password_source,
- const url_parse::Component& password,
- CanonOutput* output,
- url_parse::Component* out_username,
- url_parse::Component* out_password);
-GURL_API bool CanonicalizeUserInfo(const char16* username_source,
- const url_parse::Component& username,
- const char16* password_source,
- const url_parse::Component& password,
- CanonOutput* output,
- url_parse::Component* out_username,
- url_parse::Component* out_password);
-
-
-// This structure holds detailed state exported from the IP/Host canonicalizers.
-// Additional fields may be added as callers require them.
-struct CanonHostInfo {
- CanonHostInfo() : family(NEUTRAL), num_ipv4_components(0), out_host() {}
-
- // Convenience function to test if family is an IP address.
- bool IsIPAddress() const { return family == IPV4 || family == IPV6; }
-
- // This field summarizes how the input was classified by the canonicalizer.
- enum Family {
- NEUTRAL, // - Doesn't resemble an IP address. As far as the IP
- // canonicalizer is concerned, it should be treated as a
- // hostname.
- BROKEN, // - Almost an IP, but was not canonicalized. This could be an
- // IPv4 address where truncation occurred, or something
- // containing the special characters :[] which did not parse
- // as an IPv6 address. Never attempt to connect to this
- // address, because it might actually succeed!
- IPV4, // - Successfully canonicalized as an IPv4 address.
- IPV6, // - Successfully canonicalized as an IPv6 address.
- };
- Family family;
-
- // If |family| is IPV4, then this is the number of nonempty dot-separated
- // components in the input text, from 1 to 4. If |family| is not IPV4,
- // this value is undefined.
- int num_ipv4_components;
-
- // Location of host within the canonicalized output.
- // CanonicalizeIPAddress() only sets this field if |family| is IPV4 or IPV6.
- // CanonicalizeHostVerbose() always sets it.
- url_parse::Component out_host;
-
- // |address| contains the parsed IP Address (if any) in its first
- // AddressLength() bytes, in network order. If IsIPAddress() is false
- // AddressLength() will return zero and the content of |address| is undefined.
- unsigned char address[16];
-
- // Convenience function to calculate the length of an IP address corresponding
- // to the current IP version in |family|, if any. For use with |address|.
- int AddressLength() const {
- return family == IPV4 ? 4 : (family == IPV6 ? 16 : 0);
- }
-};
-
-
-// Host.
-//
-// The 8-bit version requires UTF-8 encoding. Use this version when you only
-// need to know whether canonicalization succeeded.
-GURL_API bool CanonicalizeHost(const char* spec,
- const url_parse::Component& host,
- CanonOutput* output,
- url_parse::Component* out_host);
-GURL_API bool CanonicalizeHost(const char16* spec,
- const url_parse::Component& host,
- CanonOutput* output,
- url_parse::Component* out_host);
-
-// Extended version of CanonicalizeHost, which returns additional information.
-// Use this when you need to know whether the hostname was an IP address.
-// A successful return is indicated by host_info->family != BROKEN. See the
-// definition of CanonHostInfo above for details.
-GURL_API void CanonicalizeHostVerbose(const char* spec,
- const url_parse::Component& host,
- CanonOutput* output,
- CanonHostInfo* host_info);
-GURL_API void CanonicalizeHostVerbose(const char16* spec,
- const url_parse::Component& host,
- CanonOutput* output,
- CanonHostInfo* host_info);
-
-
-// IP addresses.
-//
-// Tries to interpret the given host name as an IPv4 or IPv6 address. If it is
-// an IP address, it will canonicalize it as such, appending it to |output|.
-// Additional status information is returned via the |*host_info| parameter.
-// See the definition of CanonHostInfo above for details.
-//
-// This is called AUTOMATICALLY from the host canonicalizer, which ensures that
-// the input is unescaped and name-prepped, etc. It should not normally be
-// necessary or wise to call this directly.
-GURL_API void CanonicalizeIPAddress(const char* spec,
- const url_parse::Component& host,
- CanonOutput* output,
- CanonHostInfo* host_info);
-GURL_API void CanonicalizeIPAddress(const char16* spec,
- const url_parse::Component& host,
- CanonOutput* output,
- CanonHostInfo* host_info);
-
-// Port: this function will add the colon for the port if a port is present.
-// The caller can pass url_parse::PORT_UNSPECIFIED as the
-// default_port_for_scheme argument if there is no default port.
-//
-// The 8-bit version requires UTF-8 encoding.
-GURL_API bool CanonicalizePort(const char* spec,
- const url_parse::Component& port,
- int default_port_for_scheme,
- CanonOutput* output,
- url_parse::Component* out_port);
-GURL_API bool CanonicalizePort(const char16* spec,
- const url_parse::Component& port,
- int default_port_for_scheme,
- CanonOutput* output,
- url_parse::Component* out_port);
-
-// Returns the default port for the given canonical scheme, or PORT_UNSPECIFIED
-// if the scheme is unknown.
-GURL_API int DefaultPortForScheme(const char* scheme, int scheme_len);
-
-// Path. If the input does not begin in a slash (including if the input is
-// empty), we'll prepend a slash to the path to make it canonical.
-//
-// The 8-bit version assumes UTF-8 encoding, but does not verify the validity
-// of the UTF-8 (i.e., you can have invalid UTF-8 sequences, invalid
-// characters, etc.). Normally, URLs will come in as UTF-16, so this isn't
-// an issue. Somebody giving us an 8-bit path is responsible for generating
-// the path that the server expects (we'll escape high-bit characters), so
-// if something is invalid, it's their problem.
-GURL_API bool CanonicalizePath(const char* spec,
- const url_parse::Component& path,
- CanonOutput* output,
- url_parse::Component* out_path);
-GURL_API bool CanonicalizePath(const char16* spec,
- const url_parse::Component& path,
- CanonOutput* output,
- url_parse::Component* out_path);
-
-// Canonicalizes the input as a file path. This is like CanonicalizePath except
-// that it also handles Windows drive specs. For example, the path can begin
-// with "c|\" and it will get properly canonicalized to "C:/".
-// The string will be appended to |*output| and |*out_path| will be updated.
-//
-// The 8-bit version requires UTF-8 encoding.
-GURL_API bool FileCanonicalizePath(const char* spec,
- const url_parse::Component& path,
- CanonOutput* output,
- url_parse::Component* out_path);
-GURL_API bool FileCanonicalizePath(const char16* spec,
- const url_parse::Component& path,
- CanonOutput* output,
- url_parse::Component* out_path);
-
-// Query: Prepends the ? if needed.
-//
-// The 8-bit version requires the input to be UTF-8 encoding. Incorrectly
-// encoded characters (in UTF-8 or UTF-16) will be replaced with the Unicode
-// "invalid character." This function can not fail, we always just try to do
-// our best for crazy input here since web pages can set it themselves.
-//
-// This will convert the given input into the output encoding that the given
-// character set converter object provides. The converter will only be called
-// if necessary, for ASCII input, no conversions are necessary.
-//
-// The converter can be NULL. In this case, the output encoding will be UTF-8.
-GURL_API void CanonicalizeQuery(const char* spec,
- const url_parse::Component& query,
- CharsetConverter* converter,
- CanonOutput* output,
- url_parse::Component* out_query);
-GURL_API void CanonicalizeQuery(const char16* spec,
- const url_parse::Component& query,
- CharsetConverter* converter,
- CanonOutput* output,
- url_parse::Component* out_query);
-
-// Ref: Prepends the # if needed. The output will be UTF-8 (this is the only
-// canonicalizer that does not produce ASCII output). The output is
-// guaranteed to be valid UTF-8.
-//
-// This function will not fail. If the input is invalid UTF-8/UTF-16, we'll use
-// the "Unicode replacement character" for the confusing bits and copy the rest.
-GURL_API void CanonicalizeRef(const char* spec,
- const url_parse::Component& path,
- CanonOutput* output,
- url_parse::Component* out_path);
-GURL_API void CanonicalizeRef(const char16* spec,
- const url_parse::Component& path,
- CanonOutput* output,
- url_parse::Component* out_path);
-
-// Full canonicalizer ---------------------------------------------------------
-//
-// These functions replace any string contents, rather than append as above.
-// See the above piece-by-piece functions for information specific to
-// canonicalizing individual components.
-//
-// The output will be ASCII except the reference fragment, which may be UTF-8.
-//
-// The 8-bit versions require UTF-8 encoding.
-
-// Use for standard URLs with authorities and paths.
-GURL_API bool CanonicalizeStandardURL(const char* spec,
- int spec_len,
- const url_parse::Parsed& parsed,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-GURL_API bool CanonicalizeStandardURL(const char16* spec,
- int spec_len,
- const url_parse::Parsed& parsed,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-
-// Use for file URLs.
-GURL_API bool CanonicalizeFileURL(const char* spec,
- int spec_len,
- const url_parse::Parsed& parsed,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-GURL_API bool CanonicalizeFileURL(const char16* spec,
- int spec_len,
- const url_parse::Parsed& parsed,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-
-// Use for filesystem URLs.
-GURL_API bool CanonicalizeFileSystemURL(const char* spec,
- int spec_len,
- const url_parse::Parsed& parsed,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-GURL_API bool CanonicalizeFileSystemURL(const char16* spec,
- int spec_len,
- const url_parse::Parsed& parsed,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-
-// Use for path URLs such as javascript. This does not modify the path in any
-// way, for example, by escaping it.
-GURL_API bool CanonicalizePathURL(const char* spec,
- int spec_len,
- const url_parse::Parsed& parsed,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-GURL_API bool CanonicalizePathURL(const char16* spec,
- int spec_len,
- const url_parse::Parsed& parsed,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-
-// Use for mailto URLs. This "canonicalizes" the url into a path and query
-// component. It does not attempt to merge "to" fields. It uses UTF-8 for
-// the query encoding if there is a query. This is because a mailto URL is
-// really intended for an external mail program, and the encoding of a page,
-// etc. which would influence a query encoding normally are irrelevant.
-GURL_API bool CanonicalizeMailtoURL(const char* spec,
- int spec_len,
- const url_parse::Parsed& parsed,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-GURL_API bool CanonicalizeMailtoURL(const char16* spec,
- int spec_len,
- const url_parse::Parsed& parsed,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-
-// Part replacer --------------------------------------------------------------
-
-// Internal structure used for storing separate strings for each component.
-// The basic canonicalization functions use this structure internally so that
-// component replacement (different strings for different components) can be
-// treated on the same code path as regular canonicalization (the same string
-// for each component).
-//
-// A url_parse::Parsed structure usually goes along with this. Those
-// components identify offsets within these strings, so that they can all be
-// in the same string, or spread arbitrarily across different ones.
-//
-// This structures does not own any data. It is the caller's responsibility to
-// ensure that the data the pointers point to stays in scope and is not
-// modified.
-template<typename CHAR>
-struct URLComponentSource {
- // Constructor normally used by callers wishing to replace components. This
- // will make them all NULL, which is no replacement. The caller would then
- // override the components they want to replace.
- URLComponentSource()
- : scheme(NULL),
- username(NULL),
- password(NULL),
- host(NULL),
- port(NULL),
- path(NULL),
- query(NULL),
- ref(NULL) {
- }
-
- // Constructor normally used internally to initialize all the components to
- // point to the same spec.
- explicit URLComponentSource(const CHAR* default_value)
- : scheme(default_value),
- username(default_value),
- password(default_value),
- host(default_value),
- port(default_value),
- path(default_value),
- query(default_value),
- ref(default_value) {
- }
-
- const CHAR* scheme;
- const CHAR* username;
- const CHAR* password;
- const CHAR* host;
- const CHAR* port;
- const CHAR* path;
- const CHAR* query;
- const CHAR* ref;
-};
-
-// This structure encapsulates information on modifying a URL. Each component
-// may either be left unchanged, replaced, or deleted.
-//
-// By default, each component is unchanged. For those components that should be
-// modified, call either Set* or Clear* to modify it.
-//
-// The string passed to Set* functions DOES NOT GET COPIED AND MUST BE KEPT
-// IN SCOPE BY THE CALLER for as long as this object exists!
-//
-// Prefer the 8-bit replacement version if possible since it is more efficient.
-template<typename CHAR>
-class Replacements {
- public:
- Replacements() {
- }
-
- // Scheme
- void SetScheme(const CHAR* s, const url_parse::Component& comp) {
- sources_.scheme = s;
- components_.scheme = comp;
- }
- // Note: we don't have a ClearScheme since this doesn't make any sense.
- bool IsSchemeOverridden() const { return sources_.scheme != NULL; }
-
- // Username
- void SetUsername(const CHAR* s, const url_parse::Component& comp) {
- sources_.username = s;
- components_.username = comp;
- }
- void ClearUsername() {
- sources_.username = Placeholder();
- components_.username = url_parse::Component();
- }
- bool IsUsernameOverridden() const { return sources_.username != NULL; }
-
- // Password
- void SetPassword(const CHAR* s, const url_parse::Component& comp) {
- sources_.password = s;
- components_.password = comp;
- }
- void ClearPassword() {
- sources_.password = Placeholder();
- components_.password = url_parse::Component();
- }
- bool IsPasswordOverridden() const { return sources_.password != NULL; }
-
- // Host
- void SetHost(const CHAR* s, const url_parse::Component& comp) {
- sources_.host = s;
- components_.host = comp;
- }
- void ClearHost() {
- sources_.host = Placeholder();
- components_.host = url_parse::Component();
- }
- bool IsHostOverridden() const { return sources_.host != NULL; }
-
- // Port
- void SetPort(const CHAR* s, const url_parse::Component& comp) {
- sources_.port = s;
- components_.port = comp;
- }
- void ClearPort() {
- sources_.port = Placeholder();
- components_.port = url_parse::Component();
- }
- bool IsPortOverridden() const { return sources_.port != NULL; }
-
- // Path
- void SetPath(const CHAR* s, const url_parse::Component& comp) {
- sources_.path = s;
- components_.path = comp;
- }
- void ClearPath() {
- sources_.path = Placeholder();
- components_.path = url_parse::Component();
- }
- bool IsPathOverridden() const { return sources_.path != NULL; }
-
- // Query
- void SetQuery(const CHAR* s, const url_parse::Component& comp) {
- sources_.query = s;
- components_.query = comp;
- }
- void ClearQuery() {
- sources_.query = Placeholder();
- components_.query = url_parse::Component();
- }
- bool IsQueryOverridden() const { return sources_.query != NULL; }
-
- // Ref
- void SetRef(const CHAR* s, const url_parse::Component& comp) {
- sources_.ref = s;
- components_.ref = comp;
- }
- void ClearRef() {
- sources_.ref = Placeholder();
- components_.ref = url_parse::Component();
- }
- bool IsRefOverridden() const { return sources_.ref != NULL; }
-
- // Getters for the itnernal data. See the variables below for how the
- // information is encoded.
- const URLComponentSource<CHAR>& sources() const { return sources_; }
- const url_parse::Parsed& components() const { return components_; }
-
- private:
- // Returns a pointer to a static empty string that is used as a placeholder
- // to indicate a component should be deleted (see below).
- const CHAR* Placeholder() {
- static const CHAR empty_string = 0;
- return &empty_string;
- }
-
- // We support three states:
- //
- // Action | Source Component
- // -----------------------+--------------------------------------------------
- // Don't change component | NULL (unused)
- // Replace component | (replacement string) (replacement component)
- // Delete component | (non-NULL) (invalid component: (0,-1))
- //
- // We use a pointer to the empty string for the source when the component
- // should be deleted.
- URLComponentSource<CHAR> sources_;
- url_parse::Parsed components_;
-};
-
-// The base must be an 8-bit canonical URL.
-GURL_API bool ReplaceStandardURL(const char* base,
- const url_parse::Parsed& base_parsed,
- const Replacements<char>& replacements,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-GURL_API bool ReplaceStandardURL(const char* base,
- const url_parse::Parsed& base_parsed,
- const Replacements<char16>& replacements,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-
-// Filesystem URLs can only have the path, query, or ref replaced.
-// All other components will be ignored.
-GURL_API bool ReplaceFileSystemURL(const char* base,
- const url_parse::Parsed& base_parsed,
- const Replacements<char>& replacements,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-GURL_API bool ReplaceFileSystemURL(const char* base,
- const url_parse::Parsed& base_parsed,
- const Replacements<char16>& replacements,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-
-// Replacing some parts of a file URL is not permitted. Everything except
-// the host, path, query, and ref will be ignored.
-GURL_API bool ReplaceFileURL(const char* base,
- const url_parse::Parsed& base_parsed,
- const Replacements<char>& replacements,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-GURL_API bool ReplaceFileURL(const char* base,
- const url_parse::Parsed& base_parsed,
- const Replacements<char16>& replacements,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-
-// Path URLs can only have the scheme and path replaced. All other components
-// will be ignored.
-GURL_API bool ReplacePathURL(const char* base,
- const url_parse::Parsed& base_parsed,
- const Replacements<char>& replacements,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-GURL_API bool ReplacePathURL(const char* base,
- const url_parse::Parsed& base_parsed,
- const Replacements<char16>& replacements,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-
-// Mailto URLs can only have the scheme, path, and query replaced.
-// All other components will be ignored.
-GURL_API bool ReplaceMailtoURL(const char* base,
- const url_parse::Parsed& base_parsed,
- const Replacements<char>& replacements,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-GURL_API bool ReplaceMailtoURL(const char* base,
- const url_parse::Parsed& base_parsed,
- const Replacements<char16>& replacements,
- CanonOutput* output,
- url_parse::Parsed* new_parsed);
-
-// Relative URL ---------------------------------------------------------------
-
-// Given an input URL or URL fragment |fragment|, determines if it is a
-// relative or absolute URL and places the result into |*is_relative|. If it is
-// relative, the relevant portion of the URL will be placed into
-// |*relative_component| (there may have been trimmed whitespace, for example).
-// This value is passed to ResolveRelativeURL. If the input is not relative,
-// this value is UNDEFINED (it may be changed by the function).
-//
-// Returns true on success (we successfully determined the URL is relative or
-// not). Failure means that the combination of URLs doesn't make any sense.
-//
-// The base URL should always be canonical, therefore is ASCII.
-GURL_API bool IsRelativeURL(const char* base,
- const url_parse::Parsed& base_parsed,
- const char* fragment,
- int fragment_len,
- bool is_base_hierarchical,
- bool* is_relative,
- url_parse::Component* relative_component);
-GURL_API bool IsRelativeURL(const char* base,
- const url_parse::Parsed& base_parsed,
- const char16* fragment,
- int fragment_len,
- bool is_base_hierarchical,
- bool* is_relative,
- url_parse::Component* relative_component);
-
-// Given a canonical parsed source URL, a URL fragment known to be relative,
-// and the identified relevant portion of the relative URL (computed by
-// IsRelativeURL), this produces a new parsed canonical URL in |output| and
-// |out_parsed|.
-//
-// It also requires a flag indicating whether the base URL is a file: URL
-// which triggers additional logic.
-//
-// The base URL should be canonical and have a host (may be empty for file
-// URLs) and a path. If it doesn't have these, we can't resolve relative
-// URLs off of it and will return the base as the output with an error flag.
-// Becausee it is canonical is should also be ASCII.
-//
-// The query charset converter follows the same rules as CanonicalizeQuery.
-//
-// Returns true on success. On failure, the output will be "something
-// reasonable" that will be consistent and valid, just probably not what
-// was intended by the web page author or caller.
-GURL_API bool ResolveRelativeURL(const char* base_url,
- const url_parse::Parsed& base_parsed,
- bool base_is_file,
- const char* relative_url,
- const url_parse::Component& relative_component,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* out_parsed);
-GURL_API bool ResolveRelativeURL(const char* base_url,
- const url_parse::Parsed& base_parsed,
- bool base_is_file,
- const char16* relative_url,
- const url_parse::Component& relative_component,
- CharsetConverter* query_converter,
- CanonOutput* output,
- url_parse::Parsed* out_parsed);
-
-} // namespace url_canon
+#include "url/url_canon.h"
#endif // GOOGLEURL_SRC_URL_CANON_H__
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