| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "url/url_util.h" |
| |
| #include <string.h> |
| |
| #include "base/debug/leak_annotations.h" |
| #include "base/logging.h" |
| #include "base/strings/string_util.h" |
| #include "starboard/common/string.h" |
| #include "starboard/configuration.h" |
| #include "starboard/memory.h" |
| #include "starboard/types.h" |
| #include "url/url_canon_internal.h" |
| #include "url/url_constants.h" |
| #include "url/url_file.h" |
| #include "url/url_util_internal.h" |
| |
| namespace url { |
| |
| namespace { |
| |
| // Pass this enum through for methods which would like to know if whitespace |
| // removal is necessary. |
| enum WhitespaceRemovalPolicy { |
| REMOVE_WHITESPACE, |
| DO_NOT_REMOVE_WHITESPACE, |
| }; |
| |
| const SchemeWithType kStandardURLSchemes[] = { |
| {kHttpsScheme, SCHEME_WITH_HOST_PORT_AND_USER_INFORMATION}, |
| {kHttpScheme, SCHEME_WITH_HOST_PORT_AND_USER_INFORMATION}, |
| // Yes, file URLs can have a hostname, so file URLs should be handled as |
| // "standard". File URLs never have a port as specified by the SchemeType |
| // field. Unlike other SCHEME_WITH_HOST schemes, the 'host' in a file |
| // URL may be empty, a behavior which is special-cased during |
| // canonicalization. |
| {kFileScheme, SCHEME_WITH_HOST}, |
| {kFtpScheme, SCHEME_WITH_HOST_PORT_AND_USER_INFORMATION}, |
| {kGopherScheme, SCHEME_WITH_HOST_PORT_AND_USER_INFORMATION}, |
| {kWssScheme, |
| SCHEME_WITH_HOST_PORT_AND_USER_INFORMATION}, // WebSocket secure. |
| {kWsScheme, SCHEME_WITH_HOST_PORT_AND_USER_INFORMATION}, // WebSocket. |
| {kFileSystemScheme, SCHEME_WITHOUT_AUTHORITY}, |
| }; |
| |
| const SchemeWithType kReferrerURLSchemes[] = { |
| {kHttpsScheme, SCHEME_WITH_HOST_PORT_AND_USER_INFORMATION}, |
| {kHttpScheme, SCHEME_WITH_HOST_PORT_AND_USER_INFORMATION}, |
| }; |
| |
| const char* kSecureSchemes[] = { |
| kHttpsScheme, |
| kAboutScheme, |
| kDataScheme, |
| kWssScheme, |
| }; |
| |
| const char* kLocalSchemes[] = { |
| kFileScheme, |
| }; |
| |
| const char* kNoAccessSchemes[] = { |
| kAboutScheme, |
| kJavaScriptScheme, |
| kDataScheme, |
| }; |
| |
| const char* kCORSEnabledSchemes[] = { |
| kHttpsScheme, |
| kHttpScheme, |
| kDataScheme, |
| }; |
| |
| const char* kWebStorageSchemes[] = { |
| kHttpsScheme, |
| kHttpScheme, |
| kFileScheme, |
| kFtpScheme, |
| kWssScheme, |
| kWsScheme, |
| }; |
| |
| const char* kEmptyDocumentSchemes[] = { |
| kAboutScheme, |
| }; |
| |
| bool initialized = false; |
| |
| // Lists of the currently installed standard and referrer schemes. These lists |
| // are lazily initialized by Initialize and are leaked on shutdown to prevent |
| // any destructors from being called that will slow us down or cause problems. |
| std::vector<SchemeWithType>* standard_schemes = nullptr; |
| std::vector<SchemeWithType>* referrer_schemes = nullptr; |
| |
| // Similar to above, initialized by the Init*Schemes methods. |
| std::vector<std::string>* secure_schemes = nullptr; |
| std::vector<std::string>* local_schemes = nullptr; |
| std::vector<std::string>* no_access_schemes = nullptr; |
| std::vector<std::string>* cors_enabled_schemes = nullptr; |
| std::vector<std::string>* web_storage_schemes = nullptr; |
| std::vector<std::string>* csp_bypassing_schemes = nullptr; |
| std::vector<std::string>* empty_document_schemes = nullptr; |
| |
| // See the LockSchemeRegistries declaration in the header. |
| bool scheme_registries_locked = false; |
| |
| // This template converts a given character type to the corresponding |
| // StringPiece type. |
| template<typename CHAR> struct CharToStringPiece { |
| }; |
| template<> struct CharToStringPiece<char> { |
| typedef base::StringPiece Piece; |
| }; |
| template<> struct CharToStringPiece<base::char16> { |
| typedef base::StringPiece16 Piece; |
| }; |
| |
| void InitSchemes(std::vector<std::string>** schemes, |
| const char** initial_schemes, |
| size_t size) { |
| *schemes = new std::vector<std::string>(size); |
| for (size_t i = 0; i < size; i++) { |
| (*(*schemes))[i] = initial_schemes[i]; |
| } |
| } |
| |
| void InitSchemesWithType(std::vector<SchemeWithType>** schemes, |
| const SchemeWithType* initial_schemes, |
| size_t size) { |
| *schemes = new std::vector<SchemeWithType>(size); |
| for (size_t i = 0; i < size; i++) { |
| (*(*schemes))[i] = initial_schemes[i]; |
| } |
| } |
| |
| // Given a string and a range inside the string, compares it to the given |
| // lower-case |compare_to| buffer. |
| template<typename CHAR> |
| inline bool DoCompareSchemeComponent(const CHAR* spec, |
| const Component& component, |
| const char* compare_to) { |
| if (!component.is_nonempty()) |
| return compare_to[0] == 0; // When component is empty, match empty scheme. |
| return base::LowerCaseEqualsASCII( |
| typename CharToStringPiece<CHAR>::Piece( |
| &spec[component.begin], component.len), |
| compare_to); |
| } |
| |
| // Returns true and sets |type| to the SchemeType of the given scheme |
| // identified by |scheme| within |spec| if in |schemes|. |
| template<typename CHAR> |
| bool DoIsInSchemes(const CHAR* spec, |
| const Component& scheme, |
| SchemeType* type, |
| const std::vector<SchemeWithType>& schemes) { |
| if (!scheme.is_nonempty()) |
| return false; // Empty or invalid schemes are non-standard. |
| |
| for (const SchemeWithType& scheme_with_type : schemes) { |
| if (base::LowerCaseEqualsASCII(typename CharToStringPiece<CHAR>::Piece( |
| &spec[scheme.begin], scheme.len), |
| scheme_with_type.scheme)) { |
| *type = scheme_with_type.type; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| template<typename CHAR> |
| bool DoIsStandard(const CHAR* spec, const Component& scheme, SchemeType* type) { |
| Initialize(); |
| return DoIsInSchemes(spec, scheme, type, *standard_schemes); |
| } |
| |
| |
| template<typename CHAR> |
| bool DoFindAndCompareScheme(const CHAR* str, |
| int str_len, |
| const char* compare, |
| Component* found_scheme) { |
| // Before extracting scheme, canonicalize the URL to remove any whitespace. |
| // This matches the canonicalization done in DoCanonicalize function. |
| RawCanonOutputT<CHAR> whitespace_buffer; |
| int spec_len; |
| const CHAR* spec = |
| RemoveURLWhitespace(str, str_len, &whitespace_buffer, &spec_len, nullptr); |
| |
| Component our_scheme; |
| if (!ExtractScheme(spec, spec_len, &our_scheme)) { |
| // No scheme. |
| if (found_scheme) |
| *found_scheme = Component(); |
| return false; |
| } |
| if (found_scheme) |
| *found_scheme = our_scheme; |
| return DoCompareSchemeComponent(spec, our_scheme, compare); |
| } |
| |
| template <typename CHAR> |
| bool DoCanonicalize(const CHAR* spec, |
| int spec_len, |
| bool trim_path_end, |
| WhitespaceRemovalPolicy whitespace_policy, |
| CharsetConverter* charset_converter, |
| CanonOutput* output, |
| Parsed* output_parsed) { |
| output->ReserveSizeIfNeeded(spec_len); |
| |
| // Remove any whitespace from the middle of the relative URL if necessary. |
| // Possibly this will result in copying to the new buffer. |
| RawCanonOutputT<CHAR> whitespace_buffer; |
| if (whitespace_policy == REMOVE_WHITESPACE) { |
| spec = RemoveURLWhitespace(spec, spec_len, &whitespace_buffer, &spec_len, |
| &output_parsed->potentially_dangling_markup); |
| } |
| |
| Parsed parsed_input; |
| #ifndef STARBOARD |
| #ifdef WIN32 |
| // For Windows, we allow things that look like absolute Windows paths to be |
| // fixed up magically to file URLs. This is done for IE compatibility. For |
| // example, this will change "c:/foo" into a file URL rather than treating |
| // it as a URL with the protocol "c". It also works for UNC ("\\foo\bar.txt"). |
| // There is similar logic in url_canon_relative.cc for |
| // |
| // For Max & Unix, we don't do this (the equivalent would be "/foo/bar" which |
| // has no meaning as an absolute path name. This is because browsers on Mac |
| // & Unix don't generally do this, so there is no compatibility reason for |
| // doing so. |
| if (DoesBeginUNCPath(spec, 0, spec_len, false) || |
| DoesBeginWindowsDriveSpec(spec, 0, spec_len)) { |
| ParseFileURL(spec, spec_len, &parsed_input); |
| return CanonicalizeFileURL(spec, spec_len, parsed_input, charset_converter, |
| output, output_parsed); |
| } |
| #endif |
| #endif |
| |
| Component scheme; |
| if (!ExtractScheme(spec, spec_len, &scheme)) |
| return false; |
| |
| // This is the parsed version of the input URL, we have to canonicalize it |
| // before storing it in our object. |
| bool success; |
| SchemeType scheme_type = SCHEME_WITH_HOST_PORT_AND_USER_INFORMATION; |
| if (DoCompareSchemeComponent(spec, scheme, url::kFileScheme)) { |
| // File URLs are special. |
| ParseFileURL(spec, spec_len, &parsed_input); |
| success = CanonicalizeFileURL(spec, spec_len, parsed_input, |
| charset_converter, output, output_parsed); |
| } else if (DoCompareSchemeComponent(spec, scheme, url::kFileSystemScheme)) { |
| // Filesystem URLs are special. |
| ParseFileSystemURL(spec, spec_len, &parsed_input); |
| success = CanonicalizeFileSystemURL(spec, spec_len, parsed_input, |
| charset_converter, output, |
| output_parsed); |
| |
| } else if (DoIsStandard(spec, scheme, &scheme_type)) { |
| // All "normal" URLs. |
| ParseStandardURL(spec, spec_len, &parsed_input); |
| success = CanonicalizeStandardURL(spec, spec_len, parsed_input, scheme_type, |
| charset_converter, output, output_parsed); |
| |
| } else if (DoCompareSchemeComponent(spec, scheme, url::kMailToScheme)) { |
| // Mailto URLs are treated like standard URLs, with only a scheme, path, |
| // and query. |
| ParseMailtoURL(spec, spec_len, &parsed_input); |
| success = CanonicalizeMailtoURL(spec, spec_len, parsed_input, output, |
| output_parsed); |
| |
| } else { |
| // "Weird" URLs like data: and javascript:. |
| ParsePathURL(spec, spec_len, trim_path_end, &parsed_input); |
| success = CanonicalizePathURL(spec, spec_len, parsed_input, output, |
| output_parsed); |
| } |
| return success; |
| } |
| |
| template<typename CHAR> |
| bool DoResolveRelative(const char* base_spec, |
| int base_spec_len, |
| const Parsed& base_parsed, |
| const CHAR* in_relative, |
| int in_relative_length, |
| CharsetConverter* charset_converter, |
| CanonOutput* output, |
| Parsed* output_parsed) { |
| // Remove any whitespace from the middle of the relative URL, possibly |
| // copying to the new buffer. |
| RawCanonOutputT<CHAR> whitespace_buffer; |
| int relative_length; |
| const CHAR* relative = RemoveURLWhitespace( |
| in_relative, in_relative_length, &whitespace_buffer, &relative_length, |
| &output_parsed->potentially_dangling_markup); |
| |
| bool base_is_authority_based = false; |
| bool base_is_hierarchical = false; |
| if (base_spec && |
| base_parsed.scheme.is_nonempty()) { |
| int after_scheme = base_parsed.scheme.end() + 1; // Skip past the colon. |
| int num_slashes = CountConsecutiveSlashes(base_spec, after_scheme, |
| base_spec_len); |
| base_is_authority_based = num_slashes > 1; |
| base_is_hierarchical = num_slashes > 0; |
| } |
| |
| SchemeType unused_scheme_type = SCHEME_WITH_HOST_PORT_AND_USER_INFORMATION; |
| bool standard_base_scheme = |
| base_parsed.scheme.is_nonempty() && |
| DoIsStandard(base_spec, base_parsed.scheme, &unused_scheme_type); |
| |
| bool is_relative; |
| Component relative_component; |
| if (!IsRelativeURL(base_spec, base_parsed, relative, relative_length, |
| (base_is_hierarchical || standard_base_scheme), |
| &is_relative, &relative_component)) { |
| // Error resolving. |
| return false; |
| } |
| |
| // Don't reserve buffer space here. Instead, reserve in DoCanonicalize and |
| // ReserveRelativeURL, to enable more accurate buffer sizes. |
| |
| // Pretend for a moment that |base_spec| is a standard URL. Normally |
| // non-standard URLs are treated as PathURLs, but if the base has an |
| // authority we would like to preserve it. |
| if (is_relative && base_is_authority_based && !standard_base_scheme) { |
| Parsed base_parsed_authority; |
| ParseStandardURL(base_spec, base_spec_len, &base_parsed_authority); |
| if (base_parsed_authority.host.is_nonempty()) { |
| RawCanonOutputT<char> temporary_output; |
| bool did_resolve_succeed = |
| ResolveRelativeURL(base_spec, base_parsed_authority, false, relative, |
| relative_component, charset_converter, |
| &temporary_output, output_parsed); |
| // The output_parsed is incorrect at this point (because it was built |
| // based on base_parsed_authority instead of base_parsed) and needs to be |
| // re-created. |
| DoCanonicalize(temporary_output.data(), temporary_output.length(), true, |
| REMOVE_WHITESPACE, charset_converter, output, |
| output_parsed); |
| return did_resolve_succeed; |
| } |
| } else if (is_relative) { |
| // Relative, resolve and canonicalize. |
| bool file_base_scheme = base_parsed.scheme.is_nonempty() && |
| DoCompareSchemeComponent(base_spec, base_parsed.scheme, kFileScheme); |
| return ResolveRelativeURL(base_spec, base_parsed, file_base_scheme, relative, |
| relative_component, charset_converter, output, |
| output_parsed); |
| } |
| |
| // Not relative, canonicalize the input. |
| return DoCanonicalize(relative, relative_length, true, |
| DO_NOT_REMOVE_WHITESPACE, charset_converter, output, |
| output_parsed); |
| } |
| |
| template<typename CHAR> |
| bool DoReplaceComponents(const char* spec, |
| int spec_len, |
| const Parsed& parsed, |
| const Replacements<CHAR>& replacements, |
| CharsetConverter* charset_converter, |
| CanonOutput* output, |
| Parsed* out_parsed) { |
| // If the scheme is overridden, just do a simple string substitution and |
| // re-parse the whole thing. There are lots of edge cases that we really don't |
| // want to deal with. Like what happens if I replace "http://e:8080/foo" |
| // with a file. Does it become "file:///E:/8080/foo" where the port number |
| // becomes part of the path? Parsing that string as a file URL says "yes" |
| // but almost no sane rule for dealing with the components individually would |
| // come up with that. |
| // |
| // Why allow these crazy cases at all? Programatically, there is almost no |
| // case for replacing the scheme. The most common case for hitting this is |
| // in JS when building up a URL using the location object. In this case, the |
| // JS code expects the string substitution behavior: |
| // http://www.w3.org/TR/2008/WD-html5-20080610/structured.html#common3 |
| if (replacements.IsSchemeOverridden()) { |
| // Canonicalize the new scheme so it is 8-bit and can be concatenated with |
| // the existing spec. |
| RawCanonOutput<128> scheme_replaced; |
| Component scheme_replaced_parsed; |
| CanonicalizeScheme(replacements.sources().scheme, |
| replacements.components().scheme, |
| &scheme_replaced, &scheme_replaced_parsed); |
| |
| // We can assume that the input is canonicalized, which means it always has |
| // a colon after the scheme (or where the scheme would be). |
| int spec_after_colon = parsed.scheme.is_valid() ? parsed.scheme.end() + 1 |
| : 1; |
| if (spec_len - spec_after_colon > 0) { |
| scheme_replaced.Append(&spec[spec_after_colon], |
| spec_len - spec_after_colon); |
| } |
| |
| // We now need to completely re-parse the resulting string since its meaning |
| // may have changed with the different scheme. |
| RawCanonOutput<128> recanonicalized; |
| Parsed recanonicalized_parsed; |
| DoCanonicalize(scheme_replaced.data(), scheme_replaced.length(), true, |
| REMOVE_WHITESPACE, charset_converter, &recanonicalized, |
| &recanonicalized_parsed); |
| |
| // Recurse using the version with the scheme already replaced. This will now |
| // use the replacement rules for the new scheme. |
| // |
| // Warning: this code assumes that ReplaceComponents will re-check all |
| // components for validity. This is because we can't fail if DoCanonicalize |
| // failed above since theoretically the thing making it fail could be |
| // getting replaced here. If ReplaceComponents didn't re-check everything, |
| // we wouldn't know if something *not* getting replaced is a problem. |
| // If the scheme-specific replacers are made more intelligent so they don't |
| // re-check everything, we should instead re-canonicalize the whole thing |
| // after this call to check validity (this assumes replacing the scheme is |
| // much much less common than other types of replacements, like clearing the |
| // ref). |
| Replacements<CHAR> replacements_no_scheme = replacements; |
| replacements_no_scheme.SetScheme(NULL, Component()); |
| return DoReplaceComponents(recanonicalized.data(), recanonicalized.length(), |
| recanonicalized_parsed, replacements_no_scheme, |
| charset_converter, output, out_parsed); |
| } |
| |
| // TODO(csharrison): We could be smarter about size to reserve if this is done |
| // in callers below, and the code checks to see which components are being |
| // replaced, and with what length. If this ends up being a hot spot it should |
| // be changed. |
| output->ReserveSizeIfNeeded(spec_len); |
| |
| // If we get here, then we know the scheme doesn't need to be replaced, so can |
| // just key off the scheme in the spec to know how to do the replacements. |
| if (DoCompareSchemeComponent(spec, parsed.scheme, url::kFileScheme)) { |
| return ReplaceFileURL(spec, parsed, replacements, charset_converter, output, |
| out_parsed); |
| } |
| if (DoCompareSchemeComponent(spec, parsed.scheme, url::kFileSystemScheme)) { |
| return ReplaceFileSystemURL(spec, parsed, replacements, charset_converter, |
| output, out_parsed); |
| } |
| SchemeType scheme_type = SCHEME_WITH_HOST_PORT_AND_USER_INFORMATION; |
| if (DoIsStandard(spec, parsed.scheme, &scheme_type)) { |
| return ReplaceStandardURL(spec, parsed, replacements, scheme_type, |
| charset_converter, output, out_parsed); |
| } |
| if (DoCompareSchemeComponent(spec, parsed.scheme, url::kMailToScheme)) { |
| return ReplaceMailtoURL(spec, parsed, replacements, output, out_parsed); |
| } |
| |
| // Default is a path URL. |
| return ReplacePathURL(spec, parsed, replacements, output, out_parsed); |
| } |
| |
| void DoAddScheme(const char* new_scheme, std::vector<std::string>* schemes) { |
| DCHECK(schemes); |
| // If this assert triggers, it means you've called Add*Scheme after |
| // LockSchemeRegistries has been called (see the header file for |
| // LockSchemeRegistries for more). |
| // |
| // This normally means you're trying to set up a new scheme too late in your |
| // application's init process. Locate where your app does this initialization |
| // and calls LockSchemeRegistries, and add your new scheme there. |
| DCHECK(!scheme_registries_locked) |
| << "Trying to add a scheme after the lists have been locked."; |
| |
| size_t scheme_len = strlen(new_scheme); |
| if (scheme_len == 0) |
| return; |
| |
| DCHECK_EQ(base::ToLowerASCII(new_scheme), new_scheme); |
| schemes->push_back(std::string(new_scheme)); |
| } |
| |
| void DoAddSchemeWithType(const char* new_scheme, |
| SchemeType type, |
| std::vector<SchemeWithType>* schemes) { |
| DCHECK(schemes); |
| // If this assert triggers, it means you've called Add*Scheme after |
| // LockSchemeRegistries has been called (see the header file for |
| // LockSchemeRegistries for more). |
| // |
| // This normally means you're trying to set up a new scheme too late in your |
| // application's init process. Locate where your app does this initialization |
| // and calls LockSchemeRegistries, and add your new scheme there. |
| DCHECK(!scheme_registries_locked) |
| << "Trying to add a scheme after the lists have been locked."; |
| |
| size_t scheme_len = strlen(new_scheme); |
| if (scheme_len == 0) |
| return; |
| |
| DCHECK_EQ(base::ToLowerASCII(new_scheme), new_scheme); |
| // Duplicate the scheme into a new buffer and add it to the list of standard |
| // schemes. This pointer will be leaked on shutdown. |
| char* dup_scheme = new char[scheme_len + 1]; |
| ANNOTATE_LEAKING_OBJECT_PTR(dup_scheme); |
| memcpy(dup_scheme, new_scheme, scheme_len + 1); |
| |
| SchemeWithType scheme_with_type; |
| scheme_with_type.scheme = dup_scheme; |
| scheme_with_type.type = type; |
| schemes->push_back(scheme_with_type); |
| } |
| |
| } // namespace |
| |
| void Initialize() { |
| if (initialized) |
| return; |
| InitSchemesWithType(&standard_schemes, kStandardURLSchemes, |
| arraysize(kStandardURLSchemes)); |
| InitSchemesWithType(&referrer_schemes, kReferrerURLSchemes, |
| arraysize(kReferrerURLSchemes)); |
| InitSchemes(&secure_schemes, kSecureSchemes, arraysize(kSecureSchemes)); |
| InitSchemes(&local_schemes, kLocalSchemes, arraysize(kLocalSchemes)); |
| InitSchemes(&no_access_schemes, kNoAccessSchemes, |
| arraysize(kNoAccessSchemes)); |
| InitSchemes(&cors_enabled_schemes, kCORSEnabledSchemes, |
| arraysize(kCORSEnabledSchemes)); |
| InitSchemes(&web_storage_schemes, kWebStorageSchemes, |
| arraysize(kWebStorageSchemes)); |
| InitSchemes(&csp_bypassing_schemes, nullptr, 0); |
| InitSchemes(&empty_document_schemes, kEmptyDocumentSchemes, |
| arraysize(kEmptyDocumentSchemes)); |
| initialized = true; |
| } |
| |
| void Shutdown() { |
| initialized = false; |
| delete standard_schemes; |
| standard_schemes = nullptr; |
| delete referrer_schemes; |
| referrer_schemes = nullptr; |
| delete secure_schemes; |
| secure_schemes = nullptr; |
| delete local_schemes; |
| local_schemes = nullptr; |
| delete no_access_schemes; |
| no_access_schemes = nullptr; |
| delete cors_enabled_schemes; |
| cors_enabled_schemes = nullptr; |
| delete web_storage_schemes; |
| web_storage_schemes = nullptr; |
| delete csp_bypassing_schemes; |
| csp_bypassing_schemes = nullptr; |
| delete empty_document_schemes; |
| empty_document_schemes = nullptr; |
| } |
| |
| void AddStandardScheme(const char* new_scheme, SchemeType type) { |
| Initialize(); |
| DoAddSchemeWithType(new_scheme, type, standard_schemes); |
| } |
| |
| void AddReferrerScheme(const char* new_scheme, SchemeType type) { |
| Initialize(); |
| DoAddSchemeWithType(new_scheme, type, referrer_schemes); |
| } |
| |
| void AddSecureScheme(const char* new_scheme) { |
| Initialize(); |
| DoAddScheme(new_scheme, secure_schemes); |
| } |
| |
| const std::vector<std::string>& GetSecureSchemes() { |
| Initialize(); |
| return *secure_schemes; |
| } |
| |
| void AddLocalScheme(const char* new_scheme) { |
| Initialize(); |
| DoAddScheme(new_scheme, local_schemes); |
| } |
| |
| const std::vector<std::string>& GetLocalSchemes() { |
| Initialize(); |
| return *local_schemes; |
| } |
| |
| void AddNoAccessScheme(const char* new_scheme) { |
| Initialize(); |
| DoAddScheme(new_scheme, no_access_schemes); |
| } |
| |
| const std::vector<std::string>& GetNoAccessSchemes() { |
| Initialize(); |
| return *no_access_schemes; |
| } |
| |
| void AddCORSEnabledScheme(const char* new_scheme) { |
| Initialize(); |
| DoAddScheme(new_scheme, cors_enabled_schemes); |
| } |
| |
| const std::vector<std::string>& GetCORSEnabledSchemes() { |
| Initialize(); |
| return *cors_enabled_schemes; |
| } |
| |
| void AddWebStorageScheme(const char* new_scheme) { |
| Initialize(); |
| DoAddScheme(new_scheme, web_storage_schemes); |
| } |
| |
| const std::vector<std::string>& GetWebStorageSchemes() { |
| Initialize(); |
| return *web_storage_schemes; |
| } |
| |
| void AddCSPBypassingScheme(const char* new_scheme) { |
| Initialize(); |
| DoAddScheme(new_scheme, csp_bypassing_schemes); |
| } |
| |
| const std::vector<std::string>& GetCSPBypassingSchemes() { |
| Initialize(); |
| return *csp_bypassing_schemes; |
| } |
| |
| void AddEmptyDocumentScheme(const char* new_scheme) { |
| Initialize(); |
| DoAddScheme(new_scheme, empty_document_schemes); |
| } |
| |
| const std::vector<std::string>& GetEmptyDocumentSchemes() { |
| Initialize(); |
| return *empty_document_schemes; |
| } |
| |
| void LockSchemeRegistries() { |
| scheme_registries_locked = true; |
| } |
| |
| bool IsStandard(const char* spec, const Component& scheme) { |
| SchemeType unused_scheme_type; |
| return DoIsStandard(spec, scheme, &unused_scheme_type); |
| } |
| |
| bool GetStandardSchemeType(const char* spec, |
| const Component& scheme, |
| SchemeType* type) { |
| return DoIsStandard(spec, scheme, type); |
| } |
| |
| bool GetStandardSchemeType(const base::char16* spec, |
| const Component& scheme, |
| SchemeType* type) { |
| return DoIsStandard(spec, scheme, type); |
| } |
| |
| bool IsStandard(const base::char16* spec, const Component& scheme) { |
| SchemeType unused_scheme_type; |
| return DoIsStandard(spec, scheme, &unused_scheme_type); |
| } |
| |
| bool IsReferrerScheme(const char* spec, const Component& scheme) { |
| Initialize(); |
| SchemeType unused_scheme_type; |
| return DoIsInSchemes(spec, scheme, &unused_scheme_type, *referrer_schemes); |
| } |
| |
| bool FindAndCompareScheme(const char* str, |
| int str_len, |
| const char* compare, |
| Component* found_scheme) { |
| return DoFindAndCompareScheme(str, str_len, compare, found_scheme); |
| } |
| |
| bool FindAndCompareScheme(const base::char16* str, |
| int str_len, |
| const char* compare, |
| Component* found_scheme) { |
| return DoFindAndCompareScheme(str, str_len, compare, found_scheme); |
| } |
| |
| bool DomainIs(base::StringPiece canonical_host, |
| base::StringPiece canonical_domain) { |
| if (canonical_host.empty() || canonical_domain.empty()) |
| return false; |
| |
| // If the host name ends with a dot but the input domain doesn't, then we |
| // ignore the dot in the host name. |
| size_t host_len = canonical_host.length(); |
| if (canonical_host.back() == '.' && canonical_domain.back() != '.') |
| --host_len; |
| |
| if (host_len < canonical_domain.length()) |
| return false; |
| |
| // |host_first_pos| is the start of the compared part of the host name, not |
| // start of the whole host name. |
| const char* host_first_pos = |
| canonical_host.data() + host_len - canonical_domain.length(); |
| |
| if (base::StringPiece(host_first_pos, canonical_domain.length()) != |
| canonical_domain) { |
| return false; |
| } |
| |
| // Make sure there aren't extra characters in host before the compared part; |
| // if the host name is longer than the input domain name, then the character |
| // immediately before the compared part should be a dot. For example, |
| // www.google.com has domain "google.com", but www.iamnotgoogle.com does not. |
| if (canonical_domain[0] != '.' && host_len > canonical_domain.length() && |
| *(host_first_pos - 1) != '.') { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool HostIsIPAddress(base::StringPiece host) { |
| url::RawCanonOutputT<char, 128> ignored_output; |
| url::CanonHostInfo host_info; |
| url::CanonicalizeIPAddress(host.data(), Component(0, host.length()), |
| &ignored_output, &host_info); |
| return host_info.IsIPAddress(); |
| } |
| |
| bool Canonicalize(const char* spec, |
| int spec_len, |
| bool trim_path_end, |
| CharsetConverter* charset_converter, |
| CanonOutput* output, |
| Parsed* output_parsed) { |
| return DoCanonicalize(spec, spec_len, trim_path_end, REMOVE_WHITESPACE, |
| charset_converter, output, output_parsed); |
| } |
| |
| bool Canonicalize(const base::char16* spec, |
| int spec_len, |
| bool trim_path_end, |
| CharsetConverter* charset_converter, |
| CanonOutput* output, |
| Parsed* output_parsed) { |
| return DoCanonicalize(spec, spec_len, trim_path_end, REMOVE_WHITESPACE, |
| charset_converter, output, output_parsed); |
| } |
| |
| bool ResolveRelative(const char* base_spec, |
| int base_spec_len, |
| const Parsed& base_parsed, |
| const char* relative, |
| int relative_length, |
| CharsetConverter* charset_converter, |
| CanonOutput* output, |
| Parsed* output_parsed) { |
| return DoResolveRelative(base_spec, base_spec_len, base_parsed, |
| relative, relative_length, |
| charset_converter, output, output_parsed); |
| } |
| |
| bool ResolveRelative(const char* base_spec, |
| int base_spec_len, |
| const Parsed& base_parsed, |
| const base::char16* relative, |
| int relative_length, |
| CharsetConverter* charset_converter, |
| CanonOutput* output, |
| Parsed* output_parsed) { |
| return DoResolveRelative(base_spec, base_spec_len, base_parsed, |
| relative, relative_length, |
| charset_converter, output, output_parsed); |
| } |
| |
| bool ReplaceComponents(const char* spec, |
| int spec_len, |
| const Parsed& parsed, |
| const Replacements<char>& replacements, |
| CharsetConverter* charset_converter, |
| CanonOutput* output, |
| Parsed* out_parsed) { |
| return DoReplaceComponents(spec, spec_len, parsed, replacements, |
| charset_converter, output, out_parsed); |
| } |
| |
| bool ReplaceComponents(const char* spec, |
| int spec_len, |
| const Parsed& parsed, |
| const Replacements<base::char16>& replacements, |
| CharsetConverter* charset_converter, |
| CanonOutput* output, |
| Parsed* out_parsed) { |
| return DoReplaceComponents(spec, spec_len, parsed, replacements, |
| charset_converter, output, out_parsed); |
| } |
| |
| DecodeURLResult DecodeURLEscapeSequences(const char* input, |
| int length, |
| CanonOutputW* output) { |
| RawCanonOutputT<char> unescaped_chars; |
| for (int i = 0; i < length; i++) { |
| if (input[i] == '%') { |
| unsigned char ch; |
| if (DecodeEscaped(input, &i, length, &ch)) { |
| unescaped_chars.push_back(ch); |
| } else { |
| // Invalid escape sequence, copy the percent literal. |
| unescaped_chars.push_back('%'); |
| } |
| } else { |
| // Regular non-escaped 8-bit character. |
| unescaped_chars.push_back(input[i]); |
| } |
| } |
| |
| int output_initial_length = output->length(); |
| bool did_utf8_decode = false; |
| bool did_isomorphic_decode = false; |
| // Convert that 8-bit to UTF-16. It's not clear IE does this at all to |
| // JavaScript URLs, but Firefox and Safari do. |
| for (int i = 0; i < unescaped_chars.length(); i++) { |
| unsigned char uch = static_cast<unsigned char>(unescaped_chars.at(i)); |
| if (uch < 0x80) { |
| // Non-UTF-8, just append directly |
| output->push_back(uch); |
| } else { |
| // next_ch will point to the last character of the decoded |
| // character. |
| int next_character = i; |
| unsigned code_point; |
| if (ReadUTFChar(unescaped_chars.data(), &next_character, |
| unescaped_chars.length(), &code_point)) { |
| // Valid UTF-8 character, convert to UTF-16. |
| AppendUTF16Value(code_point, output); |
| i = next_character; |
| did_utf8_decode = true; |
| } else { |
| // If there are any sequences that are not valid UTF-8, we |
| // revert |output| changes, and promote any bytes to UTF-16. We |
| // copy all characters from the beginning to the end of the |
| // identified sequence. |
| output->set_length(output_initial_length); |
| did_utf8_decode = false; |
| for (int j = 0; j < unescaped_chars.length(); ++j) |
| output->push_back(static_cast<unsigned char>(unescaped_chars.at(j))); |
| did_isomorphic_decode = true; |
| break; |
| } |
| } |
| } |
| |
| DCHECK(!(did_utf8_decode && did_isomorphic_decode)); |
| if (did_isomorphic_decode) |
| return DecodeURLResult::kIsomorphic; |
| if (did_utf8_decode) |
| return DecodeURLResult::kUTF8; |
| return DecodeURLResult::kAsciiOnly; |
| } |
| |
| void EncodeURIComponent(const char* input, int length, CanonOutput* output) { |
| for (int i = 0; i < length; ++i) { |
| unsigned char c = static_cast<unsigned char>(input[i]); |
| if (IsComponentChar(c)) |
| output->push_back(c); |
| else |
| AppendEscapedChar(c, output); |
| } |
| } |
| |
| bool CompareSchemeComponent(const char* spec, |
| const Component& component, |
| const char* compare_to) { |
| return DoCompareSchemeComponent(spec, component, compare_to); |
| } |
| |
| bool CompareSchemeComponent(const base::char16* spec, |
| const Component& component, |
| const char* compare_to) { |
| return DoCompareSchemeComponent(spec, component, compare_to); |
| } |
| |
| } // namespace url |
