| // Copyright 2013 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/check.h" |
| #include "base/cpu_reduction_experiment.h" |
| #include "url/url_canon.h" |
| #include "url/url_canon_internal.h" |
| #include "url/url_features.h" |
| |
| namespace url { |
| |
| namespace { |
| |
| // This table lists the canonical version of all characters we allow in the |
| // input, with 0 indicating it is disallowed. We use the magic kEsc value to |
| // indicate that this character should be escaped. At present, ' ' (SPACE) and |
| // '*' (asterisk) are still non-compliant to the URL Standard. See |
| // https://crbug.com/1416013 for details. |
| const unsigned char kEsc = 0xff; |
| // clang-format off |
| const unsigned char kHostCharLookup[0x80] = { |
| // 00-1f: all are invalid |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| // ' ' ! " # $ % & ' ( ) * + , - . / |
| kEsc,'!', '"', 0, '$', 0, '&', '\'','(', ')', kEsc, '+', ',', '-', '.', 0, |
| // 0 1 2 3 4 5 6 7 8 9 : ; < = > ? |
| '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';' , 0, '=', 0, 0, |
| // @ A B C D E F G H I J K L M N O |
| 0, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', |
| // P Q R S T U V W X Y Z [ \ ] ^ _ |
| 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '[', 0, ']', 0, '_', |
| // ` a b c d e f g h i j k l m n o |
| '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', |
| // p q r s t u v w x y z { | } ~ |
| 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '{', 0, '}', '~', 0 }; |
| // clang-format on |
| |
| // https://url.spec.whatwg.org/#forbidden-host-code-point |
| const uint8_t kForbiddenHost = 0x1; |
| |
| // TODO(crbug.com/1416006): Merge other lookup tables into this table. That can |
| // be probably done after https://crbug.com/1416013 is resolved. |
| // |
| // This table is currently only used for an opaque-host in non-special URLs. |
| const uint8_t kHostCharacterTable[128] = { |
| kForbiddenHost, // 0x00 (NUL) |
| 0, // 0x01 |
| 0, // 0x02 |
| 0, // 0x03 |
| 0, // 0x04 |
| 0, // 0x05 |
| 0, // 0x06 |
| 0, // 0x07 |
| 0, // 0x08 |
| kForbiddenHost, // 0x09 (TAB) |
| kForbiddenHost, // 0x0A (LF) |
| 0, // 0x0B |
| 0, // 0x0C |
| kForbiddenHost, // 0x0D (CR) |
| 0, // 0x0E |
| 0, // 0x0F |
| 0, // 0x10 |
| 0, // 0x11 |
| 0, // 0x12 |
| 0, // 0x13 |
| 0, // 0x14 |
| 0, // 0x15 |
| 0, // 0x16 |
| 0, // 0x17 |
| 0, // 0x18 |
| 0, // 0x19 |
| 0, // 0x1A |
| 0, // 0x1B |
| 0, // 0x1C |
| 0, // 0x1D |
| 0, // 0x1E |
| 0, // 0x1F |
| kForbiddenHost, // ' ' |
| 0, // '!' |
| 0, // '"' |
| kForbiddenHost, // '#' |
| 0, // '$' |
| 0, // '%' |
| 0, // '&' |
| 0, // '\'' |
| 0, // '(' |
| 0, // ')' |
| 0, // '*' |
| 0, // '+' |
| 0, // ',' |
| 0, // '-' |
| 0, // '.' |
| kForbiddenHost, // '/' |
| 0, // '0' |
| 0, // '1' |
| 0, // '2' |
| 0, // '3' |
| 0, // '4' |
| 0, // '5' |
| 0, // '6' |
| 0, // '7' |
| 0, // '8' |
| 0, // '9' |
| kForbiddenHost, // ':' |
| 0, // ';' |
| kForbiddenHost, // '<' |
| 0, // '=' |
| kForbiddenHost, // '>' |
| kForbiddenHost, // '?' |
| kForbiddenHost, // '@' |
| 0, // 'A' |
| 0, // 'B' |
| 0, // 'C' |
| 0, // 'D' |
| 0, // 'E' |
| 0, // 'F' |
| 0, // 'G' |
| 0, // 'H' |
| 0, // 'I' |
| 0, // 'J' |
| 0, // 'K' |
| 0, // 'L' |
| 0, // 'M' |
| 0, // 'N' |
| 0, // 'O' |
| 0, // 'P' |
| 0, // 'Q' |
| 0, // 'R' |
| 0, // 'S' |
| 0, // 'T' |
| 0, // 'U' |
| 0, // 'V' |
| 0, // 'W' |
| 0, // 'X' |
| 0, // 'Y' |
| 0, // 'Z' |
| kForbiddenHost, // '[' |
| kForbiddenHost, // '\\' |
| kForbiddenHost, // ']' |
| kForbiddenHost, // '^' |
| 0, // '_' |
| 0, // '`' |
| 0, // 'a' |
| 0, // 'b' |
| 0, // 'c' |
| 0, // 'd' |
| 0, // 'e' |
| 0, // 'f' |
| 0, // 'g' |
| 0, // 'h' |
| 0, // 'i' |
| 0, // 'j' |
| 0, // 'k' |
| 0, // 'l' |
| 0, // 'm' |
| 0, // 'n' |
| 0, // 'o' |
| 0, // 'p' |
| 0, // 'q' |
| 0, // 'r' |
| 0, // 's' |
| 0, // 't' |
| 0, // 'u' |
| 0, // 'v' |
| 0, // 'w' |
| 0, // 'x' |
| 0, // 'y' |
| 0, // 'z' |
| 0, // '{' |
| kForbiddenHost, // '|' |
| 0, // '}' |
| 0, // '~' |
| 0, // 0x7F (DEL) |
| }; |
| // clang-format on |
| |
| bool IsForbiddenHostCodePoint(uint8_t ch) { |
| return ch <= 0x7F && (kHostCharacterTable[ch] & kForbiddenHost); |
| } |
| |
| // RFC1034 maximum FQDN length. |
| constexpr size_t kMaxHostLength = 253; |
| |
| // Generous padding to account for the fact that UTS#46 normalization can cause |
| // a long string to actually shrink and fit within the 253 character RFC1034 |
| // FQDN length limit. Note that this can still be too short for pathological |
| // cases: An arbitrary number of characters (e.g. U+00AD SOFT HYPHEN) can be |
| // removed from the input by UTS#46 processing. However, this should be |
| // sufficient for all normally-encountered, non-abusive hostname strings. |
| constexpr size_t kMaxHostBufferLength = kMaxHostLength * 5; |
| |
| constexpr size_t kTempHostBufferLen = 1024; |
| using StackBuffer = RawCanonOutputT<char, kTempHostBufferLen>; |
| using StackBufferW = RawCanonOutputT<char16_t, kTempHostBufferLen>; |
| |
| // Scans a host name and fills in the output flags according to what we find. |
| // |has_non_ascii| will be true if there are any non-7-bit characters, and |
| // |has_escaped| will be true if there is a percent sign. |
| template<typename CHAR, typename UCHAR> |
| void ScanHostname(const CHAR* spec, |
| const Component& host, |
| bool* has_non_ascii, |
| bool* has_escaped) { |
| int end = host.end(); |
| *has_non_ascii = false; |
| *has_escaped = false; |
| for (int i = host.begin; i < end; i++) { |
| if (static_cast<UCHAR>(spec[i]) >= 0x80) |
| *has_non_ascii = true; |
| else if (spec[i] == '%') |
| *has_escaped = true; |
| } |
| } |
| |
| // Canonicalizes a host name that is entirely 8-bit characters (even though |
| // the type holding them may be 16 bits. Escaped characters will be unescaped. |
| // Non-7-bit characters (for example, UTF-8) will be passed unchanged. |
| // |
| // The |*has_non_ascii| flag will be true if there are non-7-bit characters in |
| // the output. |
| // |
| // This function is used in two situations: |
| // |
| // * When the caller knows there is no non-ASCII or percent escaped |
| // characters. This is what DoHost does. The result will be a completely |
| // canonicalized host since we know nothing weird can happen (escaped |
| // characters could be unescaped to non-7-bit, so they have to be treated |
| // with suspicion at this point). It does not use the |has_non_ascii| flag. |
| // |
| // * When the caller has an 8-bit string that may need unescaping. |
| // DoComplexHost calls us this situation to do unescaping and validation. |
| // After this, it may do other IDN operations depending on the value of the |
| // |*has_non_ascii| flag. |
| // |
| // The return value indicates if the output is a potentially valid host name. |
| template <typename INCHAR, typename OUTCHAR> |
| bool DoSimpleHost(const INCHAR* host, |
| size_t host_len, |
| CanonOutputT<OUTCHAR>* output, |
| bool* has_non_ascii) { |
| *has_non_ascii = false; |
| |
| bool success = true; |
| for (size_t i = 0; i < host_len; ++i) { |
| unsigned int source = host[i]; |
| if (source == '%') { |
| // Unescape first, if possible. |
| // Source will be used only if decode operation was successful. |
| if (!DecodeEscaped(host, &i, host_len, |
| reinterpret_cast<unsigned char*>(&source))) { |
| // Invalid escaped character. There is nothing that can make this |
| // host valid. We append an escaped percent so the URL looks reasonable |
| // and mark as failed. |
| AppendEscapedChar('%', output); |
| success = false; |
| continue; |
| } |
| } |
| |
| if (source < 0x80) { |
| // We have ASCII input, we can use our lookup table. |
| unsigned char replacement = kHostCharLookup[source]; |
| if (!replacement) { |
| // Invalid character, add it as percent-escaped and mark as failed. |
| AppendEscapedChar(source, output); |
| success = false; |
| } else if (replacement == kEsc) { |
| // This character is valid but should be escaped. |
| AppendEscapedChar(source, output); |
| } else { |
| // Common case, the given character is valid in a hostname, the lookup |
| // table tells us the canonical representation of that character (lower |
| // cased). |
| output->push_back(replacement); |
| } |
| } else { |
| // It's a non-ascii char. Just push it to the output. |
| // In case where we have char16 input, and char output it's safe to |
| // cast char16->char only if input string was converted to ASCII. |
| output->push_back(static_cast<OUTCHAR>(source)); |
| *has_non_ascii = true; |
| } |
| } |
| return success; |
| } |
| |
| // Canonicalizes a host that requires IDN conversion. Returns true on success |
| bool DoIDNHost(const char16_t* src, size_t src_len, CanonOutput* output) { |
| int original_output_len = output->length(); // So we can rewind below. |
| |
| // We need to escape URL before doing IDN conversion, since punicode strings |
| // cannot be escaped after they are created. |
| RawCanonOutputW<kTempHostBufferLen> url_escaped_host; |
| bool has_non_ascii; |
| DoSimpleHost(src, src_len, &url_escaped_host, &has_non_ascii); |
| if (url_escaped_host.length() > kMaxHostBufferLength) { |
| AppendInvalidNarrowString(src, 0, src_len, output); |
| return false; |
| } |
| |
| StackBufferW wide_output; |
| if (!IDNToASCII(url_escaped_host.view(), &wide_output)) { |
| // Some error, give up. This will write some reasonable looking |
| // representation of the string to the output. |
| AppendInvalidNarrowString(src, 0, src_len, output); |
| return false; |
| } |
| |
| // Now we check the ASCII output like a normal host. It will also handle |
| // unescaping. Although we unescaped everything before this function call, if |
| // somebody does %00 as fullwidth, ICU will convert this to ASCII. |
| bool success = DoSimpleHost(wide_output.data(), wide_output.length(), output, |
| &has_non_ascii); |
| if (has_non_ascii) { |
| // ICU generated something that DoSimpleHost didn't think looked like |
| // ASCII. This is quite rare, but ICU might convert some characters to |
| // percent signs which might generate new escape sequences which might in |
| // turn be invalid. An example is U+FE6A "small percent" which ICU will |
| // name prep into an ASCII percent and then we can interpret the following |
| // characters as escaped characters. |
| // |
| // If DoSimpleHost didn't think the output was ASCII, just escape the |
| // thing we gave ICU and give up. DoSimpleHost will have handled a further |
| // level of escaping from ICU for simple ASCII cases (i.e. if ICU generates |
| // a new escaped ASCII sequence like "%41" we'll unescape it) but it won't |
| // do more (like handle escaped non-ASCII sequences). Handling the escaped |
| // ASCII isn't strictly necessary, but DoSimpleHost handles this case |
| // anyway so we handle it/ |
| output->set_length(original_output_len); |
| AppendInvalidNarrowString(wide_output.data(), 0, wide_output.length(), |
| output); |
| return false; |
| } |
| return success; |
| } |
| |
| // 8-bit convert host to its ASCII version: this converts the UTF-8 input to |
| // UTF-16. The has_escaped flag should be set if the input string requires |
| // unescaping. |
| bool DoComplexHost(const char* host, |
| size_t host_len, |
| bool has_non_ascii, |
| bool has_escaped, |
| CanonOutput* output) { |
| // Save the current position in the output. We may write stuff and rewind it |
| // below, so we need to know where to rewind to. |
| size_t begin_length = output->length(); |
| |
| // Points to the UTF-8 data we want to convert. This will either be the |
| // input or the unescaped version written to |*output| if necessary. |
| const char* utf8_source; |
| size_t utf8_source_len; |
| bool are_all_escaped_valid = true; |
| if (has_escaped) { |
| // Unescape before converting to UTF-16 for IDN. We write this into the |
| // output because it most likely does not require IDNization, and we can |
| // save another huge stack buffer. It will be replaced below if it requires |
| // IDN. This will also update our non-ASCII flag so we know whether the |
| // unescaped input requires IDN. |
| if (!DoSimpleHost(host, host_len, output, &has_non_ascii)) { |
| // Error with some escape sequence. We'll call the current output |
| // complete. DoSimpleHost will have written some "reasonable" output |
| // for the invalid escapes, but the output could be non-ASCII and |
| // needs to go through re-encoding below. |
| are_all_escaped_valid = false; |
| } |
| |
| // Unescaping may have left us with ASCII input, in which case the |
| // unescaped version we wrote to output is complete. |
| if (!has_non_ascii) { |
| return are_all_escaped_valid; |
| } |
| |
| // Save the pointer into the data was just converted (it may be appended to |
| // other data in the output buffer). |
| utf8_source = &output->data()[begin_length]; |
| utf8_source_len = output->length() - begin_length; |
| } else { |
| // We don't need to unescape, use input for IDNization later. (We know the |
| // input has non-ASCII, or the simple version would have been called |
| // instead of us.) |
| utf8_source = host; |
| utf8_source_len = host_len; |
| } |
| |
| // Non-ASCII input requires IDN, convert to UTF-16 and do the IDN conversion. |
| // Above, we may have used the output to write the unescaped values to, so |
| // we have to rewind it to where we started after we convert it to UTF-16. |
| StackBufferW utf16; |
| if (!ConvertUTF8ToUTF16(utf8_source, utf8_source_len, &utf16)) { |
| // In this error case, the input may or may not be the output. |
| StackBuffer utf8; |
| for (size_t i = 0; i < utf8_source_len; i++) |
| utf8.push_back(utf8_source[i]); |
| output->set_length(begin_length); |
| AppendInvalidNarrowString(utf8.data(), 0, utf8.length(), output); |
| return false; |
| } |
| output->set_length(begin_length); |
| |
| // This will call DoSimpleHost which will do normal ASCII canonicalization |
| // and also check for IP addresses in the outpt. |
| return DoIDNHost(utf16.data(), utf16.length(), output) && |
| are_all_escaped_valid; |
| } |
| |
| // UTF-16 convert host to its ASCII version. The set up is already ready for |
| // the backend, so we just pass through. The has_escaped flag should be set if |
| // the input string requires unescaping. |
| bool DoComplexHost(const char16_t* host, |
| size_t host_len, |
| bool has_non_ascii, |
| bool has_escaped, |
| CanonOutput* output) { |
| if (has_escaped) { |
| // Yikes, we have escaped characters with wide input. The escaped |
| // characters should be interpreted as UTF-8. To solve this problem, |
| // we convert to UTF-8, unescape, then convert back to UTF-16 for IDN. |
| // |
| // We don't bother to optimize the conversion in the ASCII case (which |
| // *could* just be a copy) and use the UTF-8 path, because it should be |
| // very rare that host names have escaped characters, and it is relatively |
| // fast to do the conversion anyway. |
| StackBuffer utf8; |
| if (!ConvertUTF16ToUTF8(host, host_len, &utf8)) { |
| AppendInvalidNarrowString(host, 0, host_len, output); |
| return false; |
| } |
| |
| // Once we convert to UTF-8, we can use the 8-bit version of the complex |
| // host handling code above. |
| return DoComplexHost(utf8.data(), utf8.length(), has_non_ascii, has_escaped, |
| output); |
| } |
| |
| // No unescaping necessary, we can safely pass the input to ICU. This |
| // function will only get called if we either have escaped or non-ascii |
| // input, so it's safe to just use ICU now. Even if the input is ASCII, |
| // this function will do the right thing (just slower than we could). |
| return DoIDNHost(host, host_len, output); |
| } |
| |
| template <typename CHAR, typename UCHAR> |
| bool DoHostSubstring(const CHAR* spec, |
| const Component& host, |
| CanonOutput* output) { |
| DCHECK(host.is_valid()); |
| |
| bool has_non_ascii, has_escaped; |
| ScanHostname<CHAR, UCHAR>(spec, host, &has_non_ascii, &has_escaped); |
| |
| if (has_non_ascii || has_escaped) { |
| return DoComplexHost(&spec[host.begin], static_cast<size_t>(host.len), |
| has_non_ascii, has_escaped, output); |
| } |
| |
| const bool success = DoSimpleHost( |
| &spec[host.begin], static_cast<size_t>(host.len), output, &has_non_ascii); |
| DCHECK(!has_non_ascii); |
| return success; |
| } |
| |
| template <typename CharT> |
| bool DoOpaqueHost(const std::basic_string_view<CharT> host, |
| CanonOutput& output) { |
| // URL Standard: https://url.spec.whatwg.org/#concept-opaque-host-parser |
| |
| size_t host_len = host.size(); |
| |
| for (size_t i = 0; i < host_len; ++i) { |
| char16_t ch = host[i]; |
| // The characters '[', ':', and ']', are checked later in |
| // `CanonicalizeIPv6Address` function. |
| if (ch != '[' && ch != ']' && ch != ':' && IsForbiddenHostCodePoint(ch)) { |
| return false; |
| } |
| |
| // Implementation note: |
| // |
| // URL Standard: Step 3 in |
| // https://url.spec.whatwg.org/#concept-opaque-host-parser |
| // |
| // > 3. If input contains a U+0025 (%) and the two code points following |
| // > it are not ASCII hex digits, invalid-URL-unit validation error. |
| // |
| // `invalid-URL-unit` is NOT marked as failure. We don't need to consider |
| // step 3 here. |
| |
| // URL Standard: Step 4 in |
| // https://url.spec.whatwg.org/#concept-opaque-host-parser |
| // |
| // > 4. Return the result of running UTF-8 percent-encode on input using |
| // > the C0 control percent-encode set. |
| if (IsInC0ControlPercentEncodeSet(ch)) { |
| AppendUTF8EscapedChar(host.data(), &i, host_len, &output); |
| } else { |
| output.push_back(ch); |
| } |
| } |
| return true; |
| } |
| |
| template <typename CHAR, typename UCHAR, CanonMode canon_mode> |
| void DoHost(const CHAR* spec, |
| const Component& host, |
| CanonOutput& output, |
| CanonHostInfo& host_info) { |
| // URL Standard: https://url.spec.whatwg.org/#host-parsing |
| |
| // Keep track of output's initial length, so we can rewind later. |
| const int output_begin = output.length(); |
| |
| if (host.is_empty()) { |
| // Empty hosts don't need anything. |
| host_info.family = CanonHostInfo::NEUTRAL; |
| // Carry over the valid empty host for non-special URLs. |
| // |
| // Component(0, 0) should be considered invalid here for historical reasons. |
| // |
| // TODO(crbug.com/1416006): Update the callers so that they don't pass |
| // Component(0, 0) as an invalid `host`. |
| if (host.begin != 0 && host.len == 0) { |
| host_info.out_host = Component(output_begin, 0); |
| } else { |
| host_info.out_host = Component(); |
| } |
| return; |
| } |
| |
| bool success; |
| if constexpr (canon_mode == CanonMode::kSpecialURL) { |
| success = DoHostSubstring<CHAR, UCHAR>(spec, host, &output); |
| } else { |
| // URL Standard: https://url.spec.whatwg.org/#concept-opaque-host-parser |
| success = DoOpaqueHost(host.as_string_view_on(spec), output); |
| } |
| |
| if (success) { |
| // After all the other canonicalization, check if we ended up with an IP |
| // address. IP addresses are small, so writing into this temporary buffer |
| // should not cause an allocation. |
| RawCanonOutput<64> canon_ip; |
| |
| if constexpr (canon_mode == CanonMode::kSpecialURL) { |
| CanonicalizeIPAddress(output.data(), |
| MakeRange(output_begin, output.length()), &canon_ip, |
| &host_info); |
| } else { |
| // Non-special URLs support only IPv6. |
| CanonicalizeIPv6Address(output.data(), |
| MakeRange(output_begin, output.length()), |
| canon_ip, host_info); |
| } |
| |
| // If we got an IPv4/IPv6 address, copy the canonical form back to the |
| // real buffer. Otherwise, it's a hostname or broken IP, in which case |
| // we just leave it in place. |
| if (host_info.IsIPAddress()) { |
| output.set_length(output_begin); |
| output.Append(canon_ip.view()); |
| } |
| } else { |
| // Canonicalization failed. Set BROKEN to notify the caller. |
| host_info.family = CanonHostInfo::BROKEN; |
| } |
| host_info.out_host = MakeRange(output_begin, output.length()); |
| } |
| |
| } // namespace |
| |
| bool CanonicalizeHost(const char* spec, |
| const Component& host, |
| CanonOutput* output, |
| Component* out_host) { |
| DCHECK(output); |
| DCHECK(out_host); |
| return CanonicalizeSpecialHost(spec, host, *output, *out_host); |
| } |
| |
| bool CanonicalizeHost(const char16_t* spec, |
| const Component& host, |
| CanonOutput* output, |
| Component* out_host) { |
| DCHECK(output); |
| DCHECK(out_host); |
| return CanonicalizeSpecialHost(spec, host, *output, *out_host); |
| } |
| |
| bool CanonicalizeSpecialHost(const char* spec, |
| const Component& host, |
| CanonOutput& output, |
| Component& out_host) { |
| CanonHostInfo host_info; |
| DoHost<char, unsigned char, CanonMode::kSpecialURL>(spec, host, output, |
| host_info); |
| out_host = host_info.out_host; |
| return (host_info.family != CanonHostInfo::BROKEN); |
| } |
| |
| bool CanonicalizeSpecialHost(const char16_t* spec, |
| const Component& host, |
| CanonOutput& output, |
| Component& out_host) { |
| CanonHostInfo host_info; |
| DoHost<char16_t, char16_t, CanonMode::kSpecialURL>(spec, host, output, |
| host_info); |
| out_host = host_info.out_host; |
| return (host_info.family != CanonHostInfo::BROKEN); |
| } |
| |
| bool CanonicalizeNonSpecialHost(const char* spec, |
| const Component& host, |
| CanonOutput& output, |
| Component& out_host) { |
| CanonHostInfo host_info; |
| DoHost<char, unsigned char, CanonMode::kNonSpecialURL>(spec, host, output, |
| host_info); |
| out_host = host_info.out_host; |
| return (host_info.family != CanonHostInfo::BROKEN); |
| } |
| |
| bool CanonicalizeNonSpecialHost(const char16_t* spec, |
| const Component& host, |
| CanonOutput& output, |
| Component& out_host) { |
| CanonHostInfo host_info; |
| DoHost<char16_t, char16_t, CanonMode::kNonSpecialURL>(spec, host, output, |
| host_info); |
| out_host = host_info.out_host; |
| return (host_info.family != CanonHostInfo::BROKEN); |
| } |
| |
| void CanonicalizeHostVerbose(const char* spec, |
| const Component& host, |
| CanonOutput* output, |
| CanonHostInfo* host_info) { |
| DCHECK(output); |
| DCHECK(host_info); |
| CanonicalizeSpecialHostVerbose(spec, host, *output, *host_info); |
| } |
| |
| void CanonicalizeHostVerbose(const char16_t* spec, |
| const Component& host, |
| CanonOutput* output, |
| CanonHostInfo* host_info) { |
| DCHECK(output); |
| DCHECK(host_info); |
| CanonicalizeSpecialHostVerbose(spec, host, *output, *host_info); |
| } |
| |
| void CanonicalizeSpecialHostVerbose(const char* spec, |
| const Component& host, |
| CanonOutput& output, |
| CanonHostInfo& host_info) { |
| DoHost<char, unsigned char, CanonMode::kSpecialURL>(spec, host, output, |
| host_info); |
| } |
| |
| void CanonicalizeSpecialHostVerbose(const char16_t* spec, |
| const Component& host, |
| CanonOutput& output, |
| CanonHostInfo& host_info) { |
| DoHost<char16_t, char16_t, CanonMode::kSpecialURL>(spec, host, output, |
| host_info); |
| } |
| |
| bool CanonicalizeHostSubstring(const char* spec, |
| const Component& host, |
| CanonOutput* output) { |
| return DoHostSubstring<char, unsigned char>(spec, host, output); |
| } |
| |
| bool CanonicalizeHostSubstring(const char16_t* spec, |
| const Component& host, |
| CanonOutput* output) { |
| return DoHostSubstring<char16_t, char16_t>(spec, host, output); |
| } |
| |
| void CanonicalizeNonSpecialHostVerbose(const char* spec, |
| const Component& host, |
| CanonOutput& output, |
| CanonHostInfo& host_info) { |
| DoHost<char, unsigned char, CanonMode::kNonSpecialURL>(spec, host, output, |
| host_info); |
| } |
| |
| void CanonicalizeNonSpecialHostVerbose(const char16_t* spec, |
| const Component& host, |
| CanonOutput& output, |
| CanonHostInfo& host_info) { |
| DoHost<char16_t, char16_t, CanonMode::kNonSpecialURL>(spec, host, output, |
| host_info); |
| } |
| |
| } // namespace url |