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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // Functions for canonicalizing "path" URLs. Not to be confused with the path | 5 // Functions for canonicalizing "path" URLs. Not to be confused with the path |
| 6 // of a URL, these are URLs that have no authority section, only a path. For | 6 // of a URL, these are URLs that have no authority section, only a path. For |
| 7 // example, "javascript:" and "data:". | 7 // example, "javascript:" and "data:". |
| 8 | 8 |
| 9 #include "url/url_canon.h" | 9 #include "url/url_canon.h" |
| 10 #include "url/url_canon_internal.h" | 10 #include "url/url_canon_internal.h" |
| 11 | 11 |
| 12 namespace url { | 12 namespace url { |
| 13 | 13 |
| 14 namespace { | 14 namespace { |
| 15 | 15 |
| 16 // Canonicalize the given |component| from |source| into |output| and | 16 // Canonicalize the given |component| from |source| into |output| and |
| 17 // |new_component|. If |separator| is non-zero, it is pre-pended to |ouput| | 17 // |new_component|. If |separator| is non-zero, it is pre-pended to |ouput| |
| 18 // prior to the canonicalized component; i.e. for the '?' or '#' characters. | 18 // prior to the canonicalized component; i.e. for the '?' or '#' characters. |
| 19 template<typename CHAR, typename UCHAR> | 19 template<typename CHAR, typename UCHAR> |
| 20 bool DoCanonicalizePathComponent(const CHAR* source, | 20 bool DoCanonicalizePathComponent(const CHAR* source, |
| 21 const Component& component, | 21 const Component& component, |
| 22 CHAR seperator, | 22 char separator, |
| 23 CanonOutput* output, | 23 CanonOutput* output, |
| 24 Component* new_component) { | 24 Component* new_component) { |
| 25 bool success = true; | 25 bool success = true; |
| 26 if (component.is_valid()) { | 26 if (component.is_valid()) { |
| 27 if (seperator) | 27 if (separator) |
| 28 output->push_back(seperator); | 28 output->push_back(separator); |
| 29 // Copy the path using path URL's more lax escaping rules (think for | 29 // Copy the path using path URL's more lax escaping rules (think for |
| 30 // javascript:). We convert to UTF-8 and escape non-ASCII, but leave all | 30 // javascript:). We convert to UTF-8 and escape non-ASCII, but leave all |
| 31 // ASCII characters alone. This helps readability of JavaStript. | 31 // ASCII characters alone. This helps readability of JavaStript. |
| 32 new_component->begin = output->length(); | 32 new_component->begin = output->length(); |
| 33 int end = component.end(); | 33 int end = component.end(); |
| 34 for (int i = component.begin; i < end; i++) { | 34 for (int i = component.begin; i < end; i++) { |
| 35 UCHAR uch = static_cast<UCHAR>(source[i]); | 35 UCHAR uch = static_cast<UCHAR>(source[i]); |
| 36 if (uch < 0x20 || uch >= 0x80) | 36 if (uch < 0x20 || uch >= 0x80) |
| 37 success &= AppendUTF8EscapedChar(source, &i, end, output); | 37 success &= AppendUTF8EscapedChar(source, &i, end, output); |
| 38 else | 38 else |
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| 57 | 57 |
| 58 // We assume there's no authority for path URLs. Note that hosts should never | 58 // We assume there's no authority for path URLs. Note that hosts should never |
| 59 // have -1 length. | 59 // have -1 length. |
| 60 new_parsed->username.reset(); | 60 new_parsed->username.reset(); |
| 61 new_parsed->password.reset(); | 61 new_parsed->password.reset(); |
| 62 new_parsed->host.reset(); | 62 new_parsed->host.reset(); |
| 63 new_parsed->port.reset(); | 63 new_parsed->port.reset(); |
| 64 // We allow path URLs to have the path, query and fragment components, but we | 64 // We allow path URLs to have the path, query and fragment components, but we |
| 65 // will canonicalize each of the via the weaker path URL rules. | 65 // will canonicalize each of the via the weaker path URL rules. |
| 66 success &= DoCanonicalizePathComponent<CHAR, UCHAR>( | 66 success &= DoCanonicalizePathComponent<CHAR, UCHAR>( |
| 67 source.path, parsed.path, 0, output, &new_parsed->path); | 67 source.path, parsed.path, '\0', output, &new_parsed->path); |
| 68 success &= DoCanonicalizePathComponent<CHAR, UCHAR>( | 68 success &= DoCanonicalizePathComponent<CHAR, UCHAR>( |
| 69 source.query, parsed.query, '?', output, &new_parsed->query); | 69 source.query, parsed.query, '?', output, &new_parsed->query); |
| 70 success &= DoCanonicalizePathComponent<CHAR, UCHAR>( | 70 success &= DoCanonicalizePathComponent<CHAR, UCHAR>( |
| 71 source.ref, parsed.ref, '#', output, &new_parsed->ref); | 71 source.ref, parsed.ref, '#', output, &new_parsed->ref); |
| 72 | 72 |
| 73 return success; | 73 return success; |
| 74 } | 74 } |
| 75 | 75 |
| 76 } // namespace | 76 } // namespace |
| 77 | 77 |
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| 112 Parsed* new_parsed) { | 112 Parsed* new_parsed) { |
| 113 RawCanonOutput<1024> utf8; | 113 RawCanonOutput<1024> utf8; |
| 114 URLComponentSource<char> source(base); | 114 URLComponentSource<char> source(base); |
| 115 Parsed parsed(base_parsed); | 115 Parsed parsed(base_parsed); |
| 116 SetupUTF16OverrideComponents(base, replacements, &utf8, &source, &parsed); | 116 SetupUTF16OverrideComponents(base, replacements, &utf8, &source, &parsed); |
| 117 return DoCanonicalizePathURL<char, unsigned char>( | 117 return DoCanonicalizePathURL<char, unsigned char>( |
| 118 source, parsed, output, new_parsed); | 118 source, parsed, output, new_parsed); |
| 119 } | 119 } |
| 120 | 120 |
| 121 } // namespace url | 121 } // namespace url |
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