prosody
9df70e9e006b
util-src/encodings.c

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util-src/encodings.c @ 6938:9df70e9e006b

util.session: What is the identity of a session?
author Kim Alvefur <zash@zash.se>
date Tue, 24 Nov 2015 19:09:51 +0100
parent 6789:6b180e77c97a
child 7818:54669df178c2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /* Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 -- Copyright (C) 1994-2015 Lua.org, PUC-Rio.
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5 --
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6 -- This project is MIT/X11 licensed. Please see the
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7 -- COPYING file in the source package for more information.
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8 --
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9 */
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10
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11 /*
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12 * encodings.c
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13 * Lua library for base64, stringprep and idna encodings
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14 */
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15
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16 /* Newer MSVC compilers deprecate strcpy as unsafe, but we use it in a safe way */
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17 #define _CRT_SECURE_NO_DEPRECATE
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18
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19 #include <string.h>
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20 #include <stdlib.h>
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21 #include "lua.h"
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22 #include "lauxlib.h"
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23
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24 #if (LUA_VERSION_NUM == 501)
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25 #define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
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26 #endif
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27
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28 /***************** BASE64 *****************/
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29
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30 static const char code[] =
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31 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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32
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33 static void base64_encode(luaL_Buffer* b, unsigned int c1, unsigned int c2, unsigned int c3, int n) {
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34 unsigned long tuple = c3 + 256UL * (c2 + 256UL * c1);
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35 int i;
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36 char s[4];
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37
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38 for(i = 0; i < 4; i++) {
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39 s[3 - i] = code[tuple % 64];
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40 tuple /= 64;
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41 }
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42
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43 for(i = n + 1; i < 4; i++) {
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44 s[i] = '=';
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45 }
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46
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47 luaL_addlstring(b, s, 4);
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48 }
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49
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50 static int Lbase64_encode(lua_State* L) { /** encode(s) */
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51 size_t l;
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52 const unsigned char* s = (const unsigned char*)luaL_checklstring(L, 1, &l);
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53 luaL_Buffer b;
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54 int n;
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55 luaL_buffinit(L, &b);
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56
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57 for(n = l / 3; n--; s += 3) {
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58 base64_encode(&b, s[0], s[1], s[2], 3);
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59 }
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60
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61 switch(l % 3) {
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62 case 1:
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63 base64_encode(&b, s[0], 0, 0, 1);
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64 break;
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65 case 2:
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66 base64_encode(&b, s[0], s[1], 0, 2);
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67 break;
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68 }
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69
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70 luaL_pushresult(&b);
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71 return 1;
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72 }
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73
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74 static void base64_decode(luaL_Buffer* b, int c1, int c2, int c3, int c4, int n) {
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75 unsigned long tuple = c4 + 64L * (c3 + 64L * (c2 + 64L * c1));
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76 char s[3];
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77
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78 switch(--n) {
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79 case 3:
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80 s[2] = (char) tuple;
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81 case 2:
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82 s[1] = (char)(tuple >> 8);
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83 case 1:
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84 s[0] = (char)(tuple >> 16);
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85 }
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86
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87 luaL_addlstring(b, s, n);
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88 }
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89
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90 static int Lbase64_decode(lua_State* L) { /** decode(s) */
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91 size_t l;
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92 const char* s = luaL_checklstring(L, 1, &l);
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93 luaL_Buffer b;
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94 int n = 0;
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95 char t[4];
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96 luaL_buffinit(L, &b);
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97
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98 for(;;) {
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99 int c = *s++;
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100
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101 switch(c) {
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102 const char* p;
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103 default:
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104 p = strchr(code, c);
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105
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106 if(p == NULL) {
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107 return 0;
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108 }
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109
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110 t[n++] = (char)(p - code);
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111
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112 if(n == 4) {
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113 base64_decode(&b, t[0], t[1], t[2], t[3], 4);
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114 n = 0;
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115 }
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116
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117 break;
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118 case '=':
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119
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120 switch(n) {
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121 case 1:
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122 base64_decode(&b, t[0], 0, 0, 0, 1);
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123 break;
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124 case 2:
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125 base64_decode(&b, t[0], t[1], 0, 0, 2);
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126 break;
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127 case 3:
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128 base64_decode(&b, t[0], t[1], t[2], 0, 3);
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129 break;
601
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130 }
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131
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132 n = 0;
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133 break;
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134 case 0:
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135 luaL_pushresult(&b);
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136 return 1;
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137 case '\n':
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138 case '\r':
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139 case '\t':
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140 case ' ':
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141 case '\f':
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142 case '\b':
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143 break;
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144 }
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145 }
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146 }
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147
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148 static const luaL_Reg Reg_base64[] = {
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149 { "encode", Lbase64_encode },
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150 { "decode", Lbase64_decode },
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151 { NULL, NULL }
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152 };
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153
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154 /******************* UTF-8 ********************/
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155
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156 /*
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157 * Adapted from Lua 5.3
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158 * Needed because libidn does not validate that input is valid UTF-8
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159 */
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160
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161 #define MAXUNICODE 0x10FFFF
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162
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163 /*
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164 * Decode one UTF-8 sequence, returning NULL if byte sequence is invalid.
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165 */
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166 static const char* utf8_decode(const char* o, int* val) {
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167 static unsigned int limits[] = {0xFF, 0x7F, 0x7FF, 0xFFFF};
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168 const unsigned char* s = (const unsigned char*)o;
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169 unsigned int c = s[0];
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170 unsigned int res = 0; /* final result */
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171
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172 if(c < 0x80) { /* ascii? */
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173 res = c;
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174 } else {
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175 int count = 0; /* to count number of continuation bytes */
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176
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177 while(c & 0x40) { /* still have continuation bytes? */
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178 int cc = s[++count]; /* read next byte */
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179
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180 if((cc & 0xC0) != 0x80) { /* not a continuation byte? */
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181 return NULL; /* invalid byte sequence */
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182 }
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183
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184 res = (res << 6) | (cc & 0x3F); /* add lower 6 bits from cont. byte */
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185 c <<= 1; /* to test next bit */
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186 }
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187
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188 res |= ((c & 0x7F) << (count * 5)); /* add first byte */
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189
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190 if(count > 3 || res > MAXUNICODE || res <= limits[count] || (0xd800 <= res && res <= 0xdfff)) {
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191 return NULL; /* invalid byte sequence */
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192 }
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193
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194 s += count; /* skip continuation bytes read */
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195 }
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196
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197 if(val) {
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198 *val = res;
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199 }
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200
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201 return (const char*)s + 1; /* +1 to include first byte */
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202 }
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203
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204 /*
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205 * Check that a string is valid UTF-8
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206 * Returns NULL if not
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207 */
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208 const char* check_utf8(lua_State* L, int idx, size_t* l) {
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209 size_t pos, len;
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210 const char* s = luaL_checklstring(L, 1, &len);
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211 pos = 0;
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212
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213 while(pos <= len) {
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214 const char* s1 = utf8_decode(s + pos, NULL);
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215
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216 if(s1 == NULL) { /* conversion error? */
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217 return NULL;
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218 }
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219
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220 pos = s1 - s;
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221 }
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222
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223 if(l != NULL) {
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224 *l = len;
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225 }
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226
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227 return s;
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228 }
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229
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230 static int Lutf8_valid(lua_State* L) {
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231 lua_pushboolean(L, check_utf8(L, 1, NULL) != NULL);
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232 return 1;
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233 }
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234
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235 static int Lutf8_length(lua_State* L) {
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236 size_t len;
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237
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238 if(!check_utf8(L, 1, &len)) {
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239 lua_pushnil(L);
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240 lua_pushliteral(L, "invalid utf8");
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241 return 2;
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242 }
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243
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244 lua_pushinteger(L, len);
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245 return 1;
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246 }
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247
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248 static const luaL_Reg Reg_utf8[] = {
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249 { "valid", Lutf8_valid },
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250 { "length", Lutf8_length },
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251 { NULL, NULL }
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252 };
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253
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254
766
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255 /***************** STRINGPREP *****************/
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256 #ifdef USE_STRINGPREP_ICU
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257
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258 #include <unicode/usprep.h>
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259 #include <unicode/ustring.h>
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260 #include <unicode/utrace.h>
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261
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262 static int icu_stringprep_prep(lua_State* L, const UStringPrepProfile* profile) {
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263 size_t input_len;
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264 int32_t unprepped_len, prepped_len, output_len;
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265 const char* input;
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266 char output[1024];
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267
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268 UChar unprepped[1024]; /* Temporary unicode buffer (1024 characters) */
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269 UChar prepped[1024];
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270
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271 UErrorCode err = U_ZERO_ERROR;
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272
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273 if(!lua_isstring(L, 1)) {
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274 lua_pushnil(L);
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275 return 1;
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276 }
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277
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278 input = lua_tolstring(L, 1, &input_len);
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279
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280 if(input_len >= 1024) {
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281 lua_pushnil(L);
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282 return 1;
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283 }
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284
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285 u_strFromUTF8(unprepped, 1024, &unprepped_len, input, input_len, &err);
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286
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287 if(U_FAILURE(err)) {
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288 lua_pushnil(L);
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289 return 1;
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290 }
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291
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292 prepped_len = usprep_prepare(profile, unprepped, unprepped_len, prepped, 1024, 0, NULL, &err);
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293
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294 if(U_FAILURE(err)) {
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295 lua_pushnil(L);
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296 return 1;
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297 } else {
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298 u_strToUTF8(output, 1024, &output_len, prepped, prepped_len, &err);
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299
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300 if(U_SUCCESS(err) && output_len < 1024) {
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301 lua_pushlstring(L, output, output_len);
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302 } else {
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303 lua_pushnil(L);
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304 }
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305
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306 return 1;
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307 }
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308 }
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309
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310 UStringPrepProfile* icu_nameprep;
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311 UStringPrepProfile* icu_nodeprep;
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312 UStringPrepProfile* icu_resourceprep;
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313 UStringPrepProfile* icu_saslprep;
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314
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315 /* initialize global ICU stringprep profiles */
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316 void init_icu() {
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317 UErrorCode err = U_ZERO_ERROR;
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318 utrace_setLevel(UTRACE_VERBOSE);
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319 icu_nameprep = usprep_openByType(USPREP_RFC3491_NAMEPREP, &err);
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320 icu_nodeprep = usprep_openByType(USPREP_RFC3920_NODEPREP, &err);
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321 icu_resourceprep = usprep_openByType(USPREP_RFC3920_RESOURCEPREP, &err);
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322 icu_saslprep = usprep_openByType(USPREP_RFC4013_SASLPREP, &err);
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323
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324 if(U_FAILURE(err)) {
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325 fprintf(stderr, "[c] util.encodings: error: %s\n", u_errorName((UErrorCode)err));
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326 }
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327 }
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328
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329 #define MAKE_PREP_FUNC(myFunc, prep) \
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330 static int myFunc(lua_State *L) { return icu_stringprep_prep(L, prep); }
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331
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332 MAKE_PREP_FUNC(Lstringprep_nameprep, icu_nameprep) /** stringprep.nameprep(s) */
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333 MAKE_PREP_FUNC(Lstringprep_nodeprep, icu_nodeprep) /** stringprep.nodeprep(s) */
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334 MAKE_PREP_FUNC(Lstringprep_resourceprep, icu_resourceprep) /** stringprep.resourceprep(s) */
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335 MAKE_PREP_FUNC(Lstringprep_saslprep, icu_saslprep) /** stringprep.saslprep(s) */
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336
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337 static const luaL_Reg Reg_stringprep[] = {
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338 { "nameprep", Lstringprep_nameprep },
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339 { "nodeprep", Lstringprep_nodeprep },
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340 { "resourceprep", Lstringprep_resourceprep },
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341 { "saslprep", Lstringprep_saslprep },
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342 { NULL, NULL }
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343 };
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344 #else /* USE_STRINGPREP_ICU */
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345
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346 /****************** libidn ********************/
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347
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348 #include <stringprep.h>
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349
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350 static int stringprep_prep(lua_State* L, const Stringprep_profile* profile) {
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351 size_t len;
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352 const char* s;
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353 char string[1024];
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354 int ret;
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355
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356 if(!lua_isstring(L, 1)) {
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357 lua_pushnil(L);
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358 return 1;
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359 }
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360
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361 s = check_utf8(L, 1, &len);
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362
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363 if(s == NULL || len >= 1024 || len != strlen(s)) {
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364 lua_pushnil(L);
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365 return 1; /* TODO return error message */
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366 }
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367
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368 strcpy(string, s);
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369 ret = stringprep(string, 1024, (Stringprep_profile_flags)0, profile);
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370
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371 if(ret == STRINGPREP_OK) {
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372 lua_pushstring(L, string);
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373 return 1;
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374 } else {
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375 lua_pushnil(L);
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376 return 1; /* TODO return error message */
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377 }
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378 }
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379
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380 #define MAKE_PREP_FUNC(myFunc, prep) \
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381 static int myFunc(lua_State *L) { return stringprep_prep(L, prep); }
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382
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383 MAKE_PREP_FUNC(Lstringprep_nameprep, stringprep_nameprep) /** stringprep.nameprep(s) */
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384 MAKE_PREP_FUNC(Lstringprep_nodeprep, stringprep_xmpp_nodeprep) /** stringprep.nodeprep(s) */
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385 MAKE_PREP_FUNC(Lstringprep_resourceprep, stringprep_xmpp_resourceprep) /** stringprep.resourceprep(s) */
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386 MAKE_PREP_FUNC(Lstringprep_saslprep, stringprep_saslprep) /** stringprep.saslprep(s) */
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387
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388 static const luaL_Reg Reg_stringprep[] = {
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389 { "nameprep", Lstringprep_nameprep },
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390 { "nodeprep", Lstringprep_nodeprep },
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391 { "resourceprep", Lstringprep_resourceprep },
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392 { "saslprep", Lstringprep_saslprep },
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393 { NULL, NULL }
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394 };
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395 #endif
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396
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397 /***************** IDNA *****************/
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398 #ifdef USE_STRINGPREP_ICU
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399 #include <unicode/ustdio.h>
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400 #include <unicode/uidna.h>
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401 /* IDNA2003 or IDNA2008 ? ? ? */
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Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
402 static int Lidna_to_ascii(lua_State* L) { /** idna.to_ascii(s) */
3762
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
403 size_t len;
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
404 int32_t ulen, dest_len, output_len;
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
405 const char* s = luaL_checklstring(L, 1, &len);
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
406 UChar ustr[1024];
3762
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
407 UErrorCode err = U_ZERO_ERROR;
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
408 UChar dest[1024];
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
409 char output[1024];
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
410
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
411 u_strFromUTF8(ustr, 1024, &ulen, s, len, &err);
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
412
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
413 if(U_FAILURE(err)) {
4273
7f789266b741 util.encodings: Check return values before proceeding
Paul Aurich <paul@darkrain42.org>
parents: 4272
diff changeset
414 lua_pushnil(L);
7f789266b741 util.encodings: Check return values before proceeding
Paul Aurich <paul@darkrain42.org>
parents: 4272
diff changeset
415 return 1;
7f789266b741 util.encodings: Check return values before proceeding
Paul Aurich <paul@darkrain42.org>
parents: 4272
diff changeset
416 }
7f789266b741 util.encodings: Check return values before proceeding
Paul Aurich <paul@darkrain42.org>
parents: 4272
diff changeset
417
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
418 dest_len = uidna_IDNToASCII(ustr, ulen, dest, 1024, UIDNA_USE_STD3_RULES, NULL, &err);
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
419
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
420 if(U_FAILURE(err)) {
3762
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
421 lua_pushnil(L);
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
422 return 1;
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
423 } else {
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
424 u_strToUTF8(output, 1024, &output_len, dest, dest_len, &err);
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
425
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
426 if(U_SUCCESS(err) && output_len < 1024) {
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
427 lua_pushlstring(L, output, output_len);
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
428 } else {
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
429 lua_pushnil(L);
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
430 }
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
431
3762
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
432 return 1;
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
433 }
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
434 }
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
435
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
436 static int Lidna_to_unicode(lua_State* L) { /** idna.to_unicode(s) */
3762
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
437 size_t len;
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
438 int32_t ulen, dest_len, output_len;
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
439 const char* s = luaL_checklstring(L, 1, &len);
4271
18d888c8c12d util.encodings: Fix idna.to_unicode
Paul Aurich <paul@darkrain42.org>
parents: 3965
diff changeset
440 UChar ustr[1024];
3762
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
441 UErrorCode err = U_ZERO_ERROR;
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
442 UChar dest[1024];
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
443 char output[1024];
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
444
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
445 u_strFromUTF8(ustr, 1024, &ulen, s, len, &err);
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
446
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
447 if(U_FAILURE(err)) {
4273
7f789266b741 util.encodings: Check return values before proceeding
Paul Aurich <paul@darkrain42.org>
parents: 4272
diff changeset
448 lua_pushnil(L);
7f789266b741 util.encodings: Check return values before proceeding
Paul Aurich <paul@darkrain42.org>
parents: 4272
diff changeset
449 return 1;
7f789266b741 util.encodings: Check return values before proceeding
Paul Aurich <paul@darkrain42.org>
parents: 4272
diff changeset
450 }
7f789266b741 util.encodings: Check return values before proceeding
Paul Aurich <paul@darkrain42.org>
parents: 4272
diff changeset
451
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
452 dest_len = uidna_IDNToUnicode(ustr, ulen, dest, 1024, UIDNA_USE_STD3_RULES, NULL, &err);
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
453
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
454 if(U_FAILURE(err)) {
3762
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
455 lua_pushnil(L);
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
456 return 1;
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
457 } else {
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
458 u_strToUTF8(output, 1024, &output_len, dest, dest_len, &err);
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
459
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
460 if(U_SUCCESS(err) && output_len < 1024) {
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
461 lua_pushlstring(L, output, output_len);
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
462 } else {
3769
9338d0785277 util-src/Makefile, util-src/encodings.c{,pp}: Port ICU code to C, rename encodings.cpp back to .c and amend the Makefile accordingly
Matthew Wild <mwild1@gmail.com>
parents: 3764
diff changeset
463 lua_pushnil(L);
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
464 }
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
465
3762
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
466 return 1;
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
467 }
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
468 }
4272
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
469
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
470 #else /* USE_STRINGPREP_ICU */
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
471 /****************** libidn ********************/
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
472
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
473 #include <idna.h>
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
474 #include <idn-free.h>
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
475
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
476 static int Lidna_to_ascii(lua_State* L) { /** idna.to_ascii(s) */
4272
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
477 size_t len;
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
478 const char* s = check_utf8(L, 1, &len);
6643
127b9f0c6135 util.encodings: Move declarations to top of function [pedantic]
Kim Alvefur <zash@zash.se>
parents: 6615
diff changeset
479 char* output = NULL;
127b9f0c6135 util.encodings: Move declarations to top of function [pedantic]
Kim Alvefur <zash@zash.se>
parents: 6615
diff changeset
480 int ret;
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
481
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
482 if(s == NULL || len != strlen(s)) {
6591
fe3018a2f187 util.encodings: Perform validation of UTF-8 strings before passing to libidn (Based on code from the utf8 library in Lua 5.3)
Kim Alvefur <zash@zash.se>
parents: 4302
diff changeset
483 lua_pushnil(L);
fe3018a2f187 util.encodings: Perform validation of UTF-8 strings before passing to libidn (Based on code from the utf8 library in Lua 5.3)
Kim Alvefur <zash@zash.se>
parents: 4302
diff changeset
484 return 1; /* TODO return error message */
fe3018a2f187 util.encodings: Perform validation of UTF-8 strings before passing to libidn (Based on code from the utf8 library in Lua 5.3)
Kim Alvefur <zash@zash.se>
parents: 4302
diff changeset
485 }
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
486
6643
127b9f0c6135 util.encodings: Move declarations to top of function [pedantic]
Kim Alvefur <zash@zash.se>
parents: 6615
diff changeset
487 ret = idna_to_ascii_8z(s, &output, IDNA_USE_STD3_ASCII_RULES);
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
488
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
489 if(ret == IDNA_SUCCESS) {
4272
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
490 lua_pushstring(L, output);
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
491 idn_free(output);
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
492 return 1;
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
493 } else {
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
494 lua_pushnil(L);
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
495 idn_free(output);
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
496 return 1; /* TODO return error message */
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
497 }
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
498 }
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
499
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
500 static int Lidna_to_unicode(lua_State* L) { /** idna.to_unicode(s) */
4272
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
501 size_t len;
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
502 const char* s = luaL_checklstring(L, 1, &len);
4272
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
503 char* output = NULL;
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
504 int ret = idna_to_unicode_8z8z(s, &output, 0);
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
505
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
506 if(ret == IDNA_SUCCESS) {
4272
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
507 lua_pushstring(L, output);
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
508 idn_free(output);
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
509 return 1;
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
510 } else {
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
511 lua_pushnil(L);
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
512 idn_free(output);
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
513 return 1; /* TODO return error message */
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
514 }
0a4ce2086a88 util.encodings: Swap code order ("ifndef" bugs me)
Paul Aurich <paul@darkrain42.org>
parents: 4271
diff changeset
515 }
3762
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
516 #endif
766
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
517
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
518 static const luaL_Reg Reg_idna[] = {
766
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
519 { "to_ascii", Lidna_to_ascii },
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
520 { "to_unicode", Lidna_to_unicode },
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
521 { NULL, NULL }
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
522 };
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
523
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
524 /***************** end *****************/
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
525
6615
8e4572a642cb util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
Kim Alvefur <zash@zash.se>
parents: 6608
diff changeset
526 LUALIB_API int luaopen_util_encodings(lua_State* L) {
3762
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
527 #ifdef USE_STRINGPREP_ICU
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
528 init_icu();
f02bac902a1e util.encodings: Support for ICU for IDNA operations.
Tobias Markmann <tm@ayena.de>
parents: 2923
diff changeset
529 #endif
6411
6c8f6364bc48 util-src/*.c: Don't create globals when loaded
Kim Alvefur <zash@zash.se>
parents: 4302
diff changeset
530 lua_newtable(L);
766
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
531
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
532 lua_newtable(L);
6789
6b180e77c97a util-src/*.c: Invert Lua 5.2 compat to be 5.2+ by default and a macro to support 5.1
Kim Alvefur <zash@zash.se>
parents: 6643
diff changeset
533 luaL_setfuncs(L, Reg_base64, 0);
6412
0e94f89d0e62 util-src/*.c: Use the more concise lua_setfield
Kim Alvefur <zash@zash.se>
parents: 6411
diff changeset
534 lua_setfield(L, -2, "base64");
766
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
535
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
536 lua_newtable(L);
6789
6b180e77c97a util-src/*.c: Invert Lua 5.2 compat to be 5.2+ by default and a macro to support 5.1
Kim Alvefur <zash@zash.se>
parents: 6643
diff changeset
537 luaL_setfuncs(L, Reg_stringprep, 0);
6412
0e94f89d0e62 util-src/*.c: Use the more concise lua_setfield
Kim Alvefur <zash@zash.se>
parents: 6411
diff changeset
538 lua_setfield(L, -2, "stringprep");
766
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
539
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
540 lua_newtable(L);
6789
6b180e77c97a util-src/*.c: Invert Lua 5.2 compat to be 5.2+ by default and a macro to support 5.1
Kim Alvefur <zash@zash.se>
parents: 6643
diff changeset
541 luaL_setfuncs(L, Reg_idna, 0);
6412
0e94f89d0e62 util-src/*.c: Use the more concise lua_setfield
Kim Alvefur <zash@zash.se>
parents: 6411
diff changeset
542 lua_setfield(L, -2, "idna");
766
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
543
6592
141afe8a167b util.encodings: Expose UTF-8 validation and length checking functions
Kim Alvefur <zash@zash.se>
parents: 6591
diff changeset
544 lua_newtable(L);
6789
6b180e77c97a util-src/*.c: Invert Lua 5.2 compat to be 5.2+ by default and a macro to support 5.1
Kim Alvefur <zash@zash.se>
parents: 6643
diff changeset
545 luaL_setfuncs(L, Reg_utf8, 0);
6604
478308ee29dd Merge 0.9->0.10 again
Kim Alvefur <zash@zash.se>
parents: 6413 6592
diff changeset
546 lua_setfield(L, -2, "utf8");
6592
141afe8a167b util.encodings: Expose UTF-8 validation and length checking functions
Kim Alvefur <zash@zash.se>
parents: 6591
diff changeset
547
766
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
548 lua_pushliteral(L, "-3.14");
6412
0e94f89d0e62 util-src/*.c: Use the more concise lua_setfield
Kim Alvefur <zash@zash.se>
parents: 6411
diff changeset
549 lua_setfield(L, -2, "version");
766
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
550 return 1;
433a5226267f Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents: 601
diff changeset
551 }