| // Copyright 2007, 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: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * 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. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "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 THE COPYRIGHT |
| // OWNER 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 GOOGLEURL_SRC_URL_UTIL_H__ |
| #define GOOGLEURL_SRC_URL_UTIL_H__ |
| |
| #include <string> |
| |
| #include "googleurl/src/url_parse.h" |
| #include "googleurl/src/url_canon.h" |
| |
| namespace url_util { |
| |
| typedef url_parse::UTF16Char UTF16Char; |
| typedef url_parse::UTF16String UTF16String; |
| |
| // Schemes -------------------------------------------------------------------- |
| |
| // Adds an application-defined scheme to the internal list of "standard" URL |
| // schemes. |
| void AddStandardScheme(const char* new_scheme); |
| |
| // Locates the scheme in the given string and places it into |found_scheme|, |
| // which may be NULL to indicate the caller does not care about the range. |
| // Returns whether the given |compare| scheme matches the scheme found in the |
| // input (if any). |
| bool FindAndCompareScheme(const char* str, |
| int str_len, |
| const char* compare, |
| url_parse::Component* found_scheme); |
| bool FindAndCompareScheme(const UTF16Char* str, |
| int str_len, |
| const char* compare, |
| url_parse::Component* found_scheme); |
| inline bool FindAndCompareScheme(const std::string& str, |
| const char* compare, |
| url_parse::Component* found_scheme) { |
| return FindAndCompareScheme(str.data(), static_cast<int>(str.size()), |
| compare, found_scheme); |
| } |
| inline bool FindAndCompareScheme(const UTF16String& str, |
| const char* compare, |
| url_parse::Component* found_scheme) { |
| return FindAndCompareScheme(str.data(), static_cast<int>(str.size()), |
| compare, found_scheme); |
| } |
| |
| // Returns true if the given string corresponds to a known scheme in the |
| // database. |
| bool IsStandardScheme(const char* scheme, int scheme_len); |
| bool IsStandardScheme(const UTF16Char* scheme, int scheme_len); |
| inline bool IsStandardScheme(const std::string& scheme) { |
| return IsStandardScheme(scheme.data(), static_cast<int>(scheme.size())); |
| } |
| inline bool IsStandardScheme(const UTF16String& scheme) { |
| return IsStandardScheme(scheme.data(), static_cast<int>(scheme.size())); |
| } |
| |
| // Returns true if the given string represents a standard URL. |
| bool IsStandard(const char* spec, int spec_len); |
| bool IsStandard(const UTF16Char* spec, int spec_len); |
| inline bool IsStandard(const std::string& spec) { |
| return IsStandard(spec.data(), static_cast<int>(spec.size())); |
| } |
| inline bool IsStandard(const UTF16String& spec) { |
| return IsStandard(spec.data(), static_cast<int>(spec.size())); |
| } |
| |
| // URL library wrappers ------------------------------------------------------- |
| |
| // Parses the given spec according to the extracted scheme type. Normal users |
| // should use the URL object, although this may be useful if performance is |
| // critical and you don't want to do the heap allocation for the std::string. |
| // |
| // Returns true if a valid URL was produced, false if not. On failure, the |
| // output and parsed structures will still be filled and will be consistent, |
| // but they will not represent a loadable URL. |
| bool Canonicalize(const char* spec, |
| int spec_len, |
| url_canon::CanonOutput* output, |
| url_parse::Parsed* output_parsed); |
| bool Canonicalize(const UTF16Char* spec, |
| int spec_len, |
| url_canon::CanonOutput* output, |
| url_parse::Parsed* output_parsed); |
| |
| // Resolves a potentially relative URL relative to the given parsed base URL. |
| // The base MUST be valid. The resulting canonical URL and parsed information |
| // will be placed in to the given out variables. |
| // |
| // The relative need not be relative. If we discover that it's absolute, this |
| // will produce a canonical version of that URL. |
| // |
| // Returns true if the output is valid, false if the input could not produce |
| // a valid URL. |
| bool ResolveRelative(const char* base_spec, |
| const url_parse::Parsed& base_parsed, |
| const char* relative, |
| int relative_length, |
| url_canon::CanonOutput* output, |
| url_parse::Parsed* output_parsed); |
| bool ResolveRelative(const char* base_spec, |
| const url_parse::Parsed& base_parsed, |
| const UTF16Char* relative, |
| int relative_length, |
| url_canon::CanonOutput* output, |
| url_parse::Parsed* output_parsed); |
| |
| // Replaces components in the given VALID input url. The new canonical URL info |
| // is written to output and out_parsed. |
| // |
| // Returns true if the resulting URL is valid. |
| bool ReplaceComponents(const char* spec, |
| const url_parse::Parsed& parsed, |
| const url_canon::Replacements<char>& replacements, |
| url_canon::CanonOutput* output, |
| url_parse::Parsed* out_parsed); |
| bool ReplaceComponents(const char* spec, |
| const url_parse::Parsed& parsed, |
| const url_canon::Replacements<UTF16Char>& replacements, |
| url_canon::CanonOutput* output, |
| url_parse::Parsed* out_parsed); |
| |
| // String helper functions ---------------------------------------------------- |
| |
| // Compare the lower-case form of the given string against the given ASCII |
| // string. This is useful for doing checking if an input string matches some |
| // token, and it is optimized to avoid intermediate string copies. |
| // |
| // The versions of this function that don't take a b_end assume that the b |
| // string is NULL terminated. |
| bool LowerCaseEqualsASCII(const char* a_begin, |
| const char* a_end, |
| const char* b); |
| bool LowerCaseEqualsASCII(const char* a_begin, |
| const char* a_end, |
| const char* b_begin, |
| const char* b_end); |
| bool LowerCaseEqualsASCII(const UTF16Char* a_begin, |
| const UTF16Char* a_end, |
| const char* b); |
| |
| } // namespace url_util |
| |
| #endif // GOOGLEURL_SRC_URL_UTIL_H__ |