Delete method Pathname::url and base/urlencode*

webrtc/base/urlencode.cc

-/*
- *  Copyright 2008 The WebRTC Project Authors. All rights reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include "webrtc/base/urlencode.h"
-
-#include "webrtc/base/checks.h"
-#include "webrtc/base/stringutils.h"
-
-static int HexPairValue(const char * code) {
-  int value = 0;
-  for (const char * pch = code; pch < code + 2; ++pch) {
-    value <<= 4;
-    int digit = *pch;
-    if (digit >= '0' && digit <= '9') {
-      value += digit - '0';
-    }
-    else if (digit >= 'A' && digit <= 'F') {
-      value += digit - 'A' + 10;
-    }
-    else if (digit >= 'a' && digit <= 'f') {
-      value += digit - 'a' + 10;
-    }
-    else {
-      return -1;
-    }
-  }
-  return value;
-}
-
-static int InternalUrlDecode(const char *source, char *dest,
-                             bool encode_space_as_plus) {
-  char * start = dest;
-
-  while (*source) {
-    switch (*source) {
-    case '+':
-      if (encode_space_as_plus) {
-        *(dest++) = ' ';
-      } else {
-        *dest++ = *source;
-      }
-      break;
-    case '%':
-      if (source[1] && source[2]) {
-        int value = HexPairValue(source + 1);
-        if (value >= 0) {
-          *(dest++) = static_cast<char>(value);
-          source += 2;
-        }
-        else {
-          *dest++ = '?';
-        }
-      }
-      else {
-        *dest++ = '?';
-      }
-      break;
-    default:
-      *dest++ = *source;
-    }
-    source++;
-  }
-
-  *dest = 0;
-  return static_cast<int>(dest - start);
-}
-
-static bool IsValidUrlChar(char ch, bool unsafe_only) {
-  if (unsafe_only) {
-    return !(ch <= ' ' || strchr("\\\"^&`<>[]{}", ch));
-  } else {
-    return isalnum(ch) || strchr("-_.!~*'()", ch);
-  }
-}
-
-namespace rtc {
-
-int UrlDecode(const char *source, char *dest) {
-  return InternalUrlDecode(source, dest, true);
-}
-
-int UrlDecodeWithoutEncodingSpaceAsPlus(const char *source, char *dest) {
-  return InternalUrlDecode(source, dest, false);
-}
-
-int InternalUrlEncode(const char *source, char *dest, unsigned int max,
-                      bool encode_space_as_plus, bool unsafe_only) {
-  static const char *digits = "0123456789ABCDEF";
-  if (max == 0) {
-    return 0;
-  }
-
-  char *start = dest;
-  while (static_cast<unsigned>(dest - start) < max && *source) {
-    unsigned char ch = static_cast<unsigned char>(*source);
-    if (*source == ' ' && encode_space_as_plus && !unsafe_only) {
-      *dest++ = '+';
-    } else if (IsValidUrlChar(ch, unsafe_only)) {
-      *dest++ = *source;
-    } else {
-      if (static_cast<unsigned>(dest - start) + 4 > max) {
-        break;
-      }
-      *dest++ = '%';
-      *dest++ = digits[(ch >> 4) & 0x0F];
-      *dest++ = digits[       ch & 0x0F];
-    }
-    source++;
-  }
-  RTC_DCHECK_LT(static_cast<unsigned int>(dest - start), max);
-  *dest = 0;
-
-  return static_cast<int>(dest - start);
-}
-
-int UrlEncode(const char *source, char *dest, unsigned max) {
-  return InternalUrlEncode(source, dest, max, true, false);
-}
-
-int UrlEncodeWithoutEncodingSpaceAsPlus(const char *source, char *dest,
-                                        unsigned max) {
-  return InternalUrlEncode(source, dest, max, false, false);
-}
-
-int UrlEncodeOnlyUnsafeChars(const char *source, char *dest, unsigned max) {
-  return InternalUrlEncode(source, dest, max, false, true);
-}
-
-std::string
-InternalUrlDecodeString(const std::string & encoded,
-                        bool encode_space_as_plus) {
-  size_t needed_length = encoded.length() + 1;
-  char* buf = STACK_ARRAY(char, needed_length);
-  InternalUrlDecode(encoded.c_str(), buf, encode_space_as_plus);
-  return buf;
-}
-
-std::string
-UrlDecodeString(const std::string & encoded) {
-  return InternalUrlDecodeString(encoded, true);
-}
-
-std::string
-UrlDecodeStringWithoutEncodingSpaceAsPlus(const std::string & encoded) {
-  return InternalUrlDecodeString(encoded, false);
-}
-
-std::string
-InternalUrlEncodeString(const std::string & decoded,
-                        bool encode_space_as_plus,
-                        bool unsafe_only) {
-  int needed_length = static_cast<int>(decoded.length()) * 3 + 1;
-  char* buf = STACK_ARRAY(char, needed_length);
-  InternalUrlEncode(decoded.c_str(), buf, needed_length,
-                    encode_space_as_plus, unsafe_only);
-  return buf;
-}
-
-std::string
-UrlEncodeString(const std::string & decoded) {
-  return InternalUrlEncodeString(decoded, true, false);
-}
-
-std::string
-UrlEncodeStringWithoutEncodingSpaceAsPlus(const std::string & decoded) {
-  return InternalUrlEncodeString(decoded, false, false);
-}
-
-std::string
-UrlEncodeStringForOnlyUnsafeChars(const std::string & decoded) {
-  return InternalUrlEncodeString(decoded, false, true);
-}
-
-}  // namespace rtc