annotate src/lib-mail/message-decoder.c @ 9322:ce612bdafc84 HEAD

message-decoder now supports optionally returning non-text bodyparts as-is.
author Timo Sirainen <tss@iki.fi>
date Mon, 18 May 2009 13:09:25 -0400
parents b9faf4db2a9f
children fd3c13b9837b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /* Copyright (c) 2006-2009 Dovecot authors, see the included COPYING file */
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2
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3 #include "lib.h"
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4 #include "buffer.h"
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5 #include "base64.h"
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6 #include "str.h"
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7 #include "unichar.h"
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8 #include "charset-utf8.h"
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9 #include "quoted-printable.h"
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10 #include "rfc822-parser.h"
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11 #include "rfc2231-parser.h"
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12 #include "message-parser.h"
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13 #include "message-header-decode.h"
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14 #include "message-decoder.h"
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15
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16 enum content_type {
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17 CONTENT_TYPE_UNKNOWN = 0,
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18 CONTENT_TYPE_BINARY,
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19 CONTENT_TYPE_QP,
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20 CONTENT_TYPE_BASE64
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21 };
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22
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23 /* base64 takes max 4 bytes per character, q-p takes max 3. */
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24 #define MAX_ENCODING_BUF_SIZE 3
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25
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26 /* UTF-8 takes max 5 bytes per character. Not sure about others, but I'd think
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27 10 is more than enough for everyone.. */
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28 #define MAX_TRANSLATION_BUF_SIZE 10
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29
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30 struct message_decoder_context {
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31 enum message_decoder_flags flags;
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32 struct message_part *prev_part;
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33
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34 struct message_header_line hdr;
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35 buffer_t *buf, *buf2;
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36
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37 char *charset_trans_charset;
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38 struct charset_translation *charset_trans;
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39 char translation_buf[MAX_TRANSLATION_BUF_SIZE];
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40 unsigned int translation_size;
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41
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42 char encoding_buf[MAX_ENCODING_BUF_SIZE];
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43 unsigned int encoding_size;
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44
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45 char *content_charset;
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46 enum content_type content_type;
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47
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48 unsigned int charset_utf8:1;
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49 unsigned int binary_input:1;
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50 };
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51
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52 struct message_decoder_context *
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53 message_decoder_init(enum message_decoder_flags flags)
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54 {
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55 struct message_decoder_context *ctx;
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56
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57 ctx = i_new(struct message_decoder_context, 1);
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58 ctx->flags = flags;
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59 ctx->buf = buffer_create_dynamic(default_pool, 8192);
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60 ctx->buf2 = buffer_create_dynamic(default_pool, 8192);
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61 return ctx;
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62 }
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63
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64 void message_decoder_deinit(struct message_decoder_context **_ctx)
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65 {
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66 struct message_decoder_context *ctx = *_ctx;
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67
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68 *_ctx = NULL;
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69
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70 if (ctx->charset_trans != NULL)
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71 charset_to_utf8_end(&ctx->charset_trans);
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72
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73 buffer_free(&ctx->buf);
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74 buffer_free(&ctx->buf2);
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75 i_free(ctx->charset_trans_charset);
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76 i_free(ctx->content_charset);
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77 i_free(ctx);
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78 }
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79
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80 static void
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81 parse_content_transfer_encoding(struct message_decoder_context *ctx,
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82 struct message_header_line *hdr)
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83 {
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84 struct rfc822_parser_context parser;
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85 string_t *value;
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86
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87 value = t_str_new(64);
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88 rfc822_parser_init(&parser, hdr->full_value, hdr->full_value_len, NULL);
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89
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90 (void)rfc822_skip_lwsp(&parser);
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91 (void)rfc822_parse_mime_token(&parser, value);
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92
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93 ctx->content_type = CONTENT_TYPE_UNKNOWN;
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94 switch (str_len(value)) {
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95 case 4:
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96 if (i_memcasecmp(str_data(value), "7bit", 4) == 0 ||
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97 i_memcasecmp(str_data(value), "8bit", 4) == 0)
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98 ctx->content_type = CONTENT_TYPE_BINARY;
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99 break;
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100 case 6:
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101 if (i_memcasecmp(str_data(value), "base64", 6) == 0)
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102 ctx->content_type = CONTENT_TYPE_BASE64;
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103 else if (i_memcasecmp(str_data(value), "binary", 6) == 0)
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104 ctx->content_type = CONTENT_TYPE_BINARY;
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105 break;
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106 case 16:
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107 if (i_memcasecmp(str_data(value), "quoted-printable", 16) == 0)
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108 ctx->content_type = CONTENT_TYPE_QP;
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109 break;
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110 }
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111 }
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112
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113 static void
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114 parse_content_type(struct message_decoder_context *ctx,
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115 struct message_header_line *hdr)
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116 {
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117 struct rfc822_parser_context parser;
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118 const char *const *results;
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119 string_t *str;
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120
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121 if (ctx->content_charset != NULL)
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122 return;
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123
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124 rfc822_parser_init(&parser, hdr->full_value, hdr->full_value_len, NULL);
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125 (void)rfc822_skip_lwsp(&parser);
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126 str = t_str_new(64);
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127 if (rfc822_parse_content_type(&parser, str) <= 0)
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128 return;
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129
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130 (void)rfc2231_parse(&parser, &results);
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131 for (; *results != NULL; results += 2) {
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132 if (strcasecmp(results[0], "charset") == 0) {
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133 ctx->content_charset = i_strdup(results[1]);
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134 ctx->charset_utf8 = charset_is_utf8(results[1]);
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135 break;
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136 }
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137 }
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138 }
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139
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140 static bool message_decode_header(struct message_decoder_context *ctx,
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141 struct message_header_line *hdr,
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142 struct message_block *output)
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143 {
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144 bool dtcase = (ctx->flags & MESSAGE_DECODER_FLAG_DTCASE) != 0;
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145 size_t value_len;
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146
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147 if (hdr->continues) {
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148 hdr->use_full_value = TRUE;
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149 return FALSE;
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150 }
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151
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152 T_BEGIN {
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153 if (hdr->name_len == 12 &&
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154 strcasecmp(hdr->name, "Content-Type") == 0)
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155 parse_content_type(ctx, hdr);
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156 if (hdr->name_len == 25 &&
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157 strcasecmp(hdr->name, "Content-Transfer-Encoding") == 0)
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158 parse_content_transfer_encoding(ctx, hdr);
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159 } T_END;
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160
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161 buffer_set_used_size(ctx->buf, 0);
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162 message_header_decode_utf8(hdr->full_value, hdr->full_value_len,
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163 ctx->buf, dtcase);
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164 value_len = ctx->buf->used;
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165
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166 if (dtcase) {
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167 (void)uni_utf8_to_decomposed_titlecase(hdr->name, hdr->name_len,
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168 ctx->buf);
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169 buffer_append_c(ctx->buf, '\0');
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170 }
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171
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172 ctx->hdr = *hdr;
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173 ctx->hdr.full_value = ctx->buf->data;
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174 ctx->hdr.full_value_len = value_len;
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175 ctx->hdr.value_len = 0;
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176 if (dtcase) {
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177 ctx->hdr.name = CONST_PTR_OFFSET(ctx->buf->data,
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178 ctx->hdr.full_value_len);
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179 ctx->hdr.name_len = ctx->buf->used - 1 - value_len;
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180 }
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181
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182 output->hdr = &ctx->hdr;
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183 return TRUE;
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184 }
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185
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186 static void translation_buf_decode(struct message_decoder_context *ctx,
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187 const unsigned char **data, size_t *size)
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188 {
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189 unsigned char trans_buf[MAX_TRANSLATION_BUF_SIZE+1];
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190 unsigned int data_wanted, skip;
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191 size_t trans_size;
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192
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193 /* @UNSAFE: move the previously untranslated bytes to trans_buf
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194 and see if we have now enough data to get the next character
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195 translated */
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196 memcpy(trans_buf, ctx->translation_buf, ctx->translation_size);
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197 data_wanted = sizeof(trans_buf) - ctx->translation_size;
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198 if (data_wanted > *size)
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199 data_wanted = *size;
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200 memcpy(trans_buf + ctx->translation_size, *data, data_wanted);
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201
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202 trans_size = ctx->translation_size + data_wanted;
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203 (void)charset_to_utf8(ctx->charset_trans, trans_buf,
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204 &trans_size, ctx->buf2);
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205
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206 i_assert(trans_size > ctx->translation_size);
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207 skip = trans_size - ctx->translation_size;
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208
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209 i_assert(*size >= skip);
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210 *data += skip;
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211 *size -= skip;
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212
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213 ctx->translation_size = 0;
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214 }
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215
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216 static void
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217 message_decode_body_init_charset(struct message_decoder_context *ctx,
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218 struct message_part *part)
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219 {
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220 enum charset_flags flags;
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221
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222 if (ctx->charset_utf8)
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223 return;
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224
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225 if (ctx->charset_trans != NULL &&
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226 strcasecmp(ctx->content_charset, ctx->charset_trans_charset) == 0) {
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227 /* already have the correct translation selected */
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228 return;
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229 }
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230
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231 if (ctx->charset_trans != NULL)
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diff changeset
232 charset_to_utf8_end(&ctx->charset_trans);
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233 i_free_and_null(ctx->charset_trans_charset);
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234
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235 ctx->binary_input = ctx->content_charset == NULL &&
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236 (ctx->flags & MESSAGE_DECODER_FLAG_RETURN_BINARY) != 0 &&
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237 (part->flags & (MESSAGE_PART_FLAG_TEXT |
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238 MESSAGE_PART_FLAG_MESSAGE_RFC822)) == 0;
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239 if (ctx->binary_input)
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240 return;
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241
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242 flags = (ctx->flags & MESSAGE_DECODER_FLAG_DTCASE) != 0 ?
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243 CHARSET_FLAG_DECOMP_TITLECASE : 0;
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244 ctx->charset_trans_charset = i_strdup(ctx->content_charset != NULL ?
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245 ctx->content_charset : "UTF-8");
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246 if (charset_to_utf8_begin(ctx->charset_trans_charset,
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247 flags, &ctx->charset_trans) < 0)
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248 ctx->charset_trans = NULL;
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249 }
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250
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251 static bool message_decode_body(struct message_decoder_context *ctx,
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252 struct message_block *input,
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253 struct message_block *output)
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254 {
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255 unsigned char new_buf[MAX_ENCODING_BUF_SIZE+1];
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256 const unsigned char *data = NULL;
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257 size_t pos, size = 0, skip = 0;
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258 int ret;
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259
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260 if (ctx->encoding_size != 0) {
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261 /* @UNSAFE */
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262 memcpy(new_buf, ctx->encoding_buf, ctx->encoding_size);
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263 skip = sizeof(new_buf) - ctx->encoding_size;
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
264 if (skip > input->size)
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
265 skip = input->size;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
266 memcpy(new_buf + ctx->encoding_size, input->data, skip);
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
267 }
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
268
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
269 switch (ctx->content_type) {
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
270 case CONTENT_TYPE_UNKNOWN:
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
271 /* just skip this body */
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
272 return FALSE;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
273
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
274 case CONTENT_TYPE_BINARY:
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
275 data = input->data;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
276 size = pos = input->size;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
277 break;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
278 case CONTENT_TYPE_QP:
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
279 buffer_set_used_size(ctx->buf, 0);
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
280 if (ctx->encoding_size != 0) {
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
281 quoted_printable_decode(new_buf,
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
282 ctx->encoding_size + skip,
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
283 &pos, ctx->buf);
5422
Timo Sirainen <tss@iki.fi>
parents: 5410
diff changeset
284 i_assert(pos >= ctx->encoding_size);
4885
Timo Sirainen <tss@iki.fi>
parents: 4708
diff changeset
285 skip = pos - ctx->encoding_size;
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
286 }
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
287
4885
Timo Sirainen <tss@iki.fi>
parents: 4708
diff changeset
288 quoted_printable_decode(input->data + skip, input->size - skip,
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
289 &pos, ctx->buf);
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
290 pos += skip;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
291 data = ctx->buf->data;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
292 size = ctx->buf->used;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
293 break;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
294 case CONTENT_TYPE_BASE64:
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
295 buffer_set_used_size(ctx->buf, 0);
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
296 if (ctx->encoding_size != 0) {
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
297 if (base64_decode(new_buf, ctx->encoding_size + skip,
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
298 &pos, ctx->buf) < 0) {
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
299 /* corrupted base64 data, don't bother with
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
300 the rest of it */
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
301 return FALSE;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
302 }
5422
Timo Sirainen <tss@iki.fi>
parents: 5410
diff changeset
303 i_assert(pos >= ctx->encoding_size);
4885
Timo Sirainen <tss@iki.fi>
parents: 4708
diff changeset
304 skip = pos - ctx->encoding_size;
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
305 }
5510
93e9e081855a Fix for base64 handling
Timo Sirainen <tss@iki.fi>
parents: 5422
diff changeset
306 ret = base64_decode(input->data + skip, input->size - skip,
93e9e081855a Fix for base64 handling
Timo Sirainen <tss@iki.fi>
parents: 5422
diff changeset
307 &pos, ctx->buf);
93e9e081855a Fix for base64 handling
Timo Sirainen <tss@iki.fi>
parents: 5422
diff changeset
308 if (ret < 0) {
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
309 /* corrupted base64 data, don't bother with
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
310 the rest of it */
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
311 return FALSE;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
312 }
5510
93e9e081855a Fix for base64 handling
Timo Sirainen <tss@iki.fi>
parents: 5422
diff changeset
313 if (ret == 0) {
4885
Timo Sirainen <tss@iki.fi>
parents: 4708
diff changeset
314 /* end of base64 input */
Timo Sirainen <tss@iki.fi>
parents: 4708
diff changeset
315 pos = input->size - skip;
Timo Sirainen <tss@iki.fi>
parents: 4708
diff changeset
316 }
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
317 pos += skip;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
318 data = ctx->buf->data;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
319 size = ctx->buf->used;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
320 break;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
321 }
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
322
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
323 if (pos != input->size) {
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
324 /* @UNSAFE */
4885
Timo Sirainen <tss@iki.fi>
parents: 4708
diff changeset
325 i_assert(pos < input->size);
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
326 ctx->encoding_size = input->size - pos;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
327 i_assert(ctx->encoding_size <= sizeof(ctx->encoding_buf));
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
328 memcpy(ctx->encoding_buf, input->data + pos,
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
329 ctx->encoding_size);
5422
Timo Sirainen <tss@iki.fi>
parents: 5410
diff changeset
330 } else {
Timo Sirainen <tss@iki.fi>
parents: 5410
diff changeset
331 ctx->encoding_size = 0;
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
332 }
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
333
9322
ce612bdafc84 message-decoder now supports optionally returning non-text bodyparts as-is.
Timo Sirainen <tss@iki.fi>
parents: 8590
diff changeset
334 if (ctx->binary_input) {
ce612bdafc84 message-decoder now supports optionally returning non-text bodyparts as-is.
Timo Sirainen <tss@iki.fi>
parents: 8590
diff changeset
335 output->data = data;
ce612bdafc84 message-decoder now supports optionally returning non-text bodyparts as-is.
Timo Sirainen <tss@iki.fi>
parents: 8590
diff changeset
336 output->size = size;
ce612bdafc84 message-decoder now supports optionally returning non-text bodyparts as-is.
Timo Sirainen <tss@iki.fi>
parents: 8590
diff changeset
337 } else if (ctx->charset_utf8) {
6952
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
338 buffer_set_used_size(ctx->buf2, 0);
9322
ce612bdafc84 message-decoder now supports optionally returning non-text bodyparts as-is.
Timo Sirainen <tss@iki.fi>
parents: 8590
diff changeset
339 if ((ctx->flags & MESSAGE_DECODER_FLAG_DTCASE) != 0) {
6131
5f56b2eb32b3 Use uni_utf8_to_decomposed_titlecase() to have proper case-insensitive UTF-8
Timo Sirainen <tss@iki.fi>
parents: 6122
diff changeset
340 (void)uni_utf8_to_decomposed_titlecase(data, size,
6579
825621c540b8 Body decoding was broken.
Timo Sirainen <tss@iki.fi>
parents: 6429
diff changeset
341 ctx->buf2);
6113
adbfce5bf7d9 Changed message_decoder_init_ucase() to message_decoder_init(bool ucase)
Timo Sirainen <tss@iki.fi>
parents: 6112
diff changeset
342 output->data = ctx->buf2->data;
adbfce5bf7d9 Changed message_decoder_init_ucase() to message_decoder_init(bool ucase)
Timo Sirainen <tss@iki.fi>
parents: 6112
diff changeset
343 output->size = ctx->buf2->used;
6952
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
344 } else if (uni_utf8_get_valid_data(data, size, ctx->buf2)) {
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
345 output->data = data;
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
346 output->size = size;
6113
adbfce5bf7d9 Changed message_decoder_init_ucase() to message_decoder_init(bool ucase)
Timo Sirainen <tss@iki.fi>
parents: 6112
diff changeset
347 } else {
6952
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
348 output->data = ctx->buf2->data;
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
349 output->size = ctx->buf2->used;
6113
adbfce5bf7d9 Changed message_decoder_init_ucase() to message_decoder_init(bool ucase)
Timo Sirainen <tss@iki.fi>
parents: 6112
diff changeset
350 }
5519
7b6511e67476 Some data still wasn't uppercased
Timo Sirainen <tss@iki.fi>
parents: 5511
diff changeset
351 } else if (ctx->charset_trans == NULL) {
6915
671c2eb25f3d Remove illegal UTF-8 sequences from output.
Timo Sirainen <tss@iki.fi>
parents: 6910
diff changeset
352 /* unknown charset */
6952
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
353 buffer_set_used_size(ctx->buf2, 0);
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
354 if (uni_utf8_get_valid_data(data, size, ctx->buf2)) {
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
355 output->data = data;
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
356 output->size = size;
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
357 } else {
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
358 output->data = ctx->buf2->data;
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
359 output->size = ctx->buf2->used;
08e4d7efcd6a uni_utf8_get_valid_data() API changed.
Timo Sirainen <tss@iki.fi>
parents: 6951
diff changeset
360 }
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
361 } else {
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
362 buffer_set_used_size(ctx->buf2, 0);
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
363 if (ctx->translation_size != 0)
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
364 translation_buf_decode(ctx, &data, &size);
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
365
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
366 pos = size;
6122
d86581f4a0c6 charset_to_utf8() isn't used anymore, so renamed charset_to_utf8_full() to it.
Timo Sirainen <tss@iki.fi>
parents: 6118
diff changeset
367 (void)charset_to_utf8(ctx->charset_trans,
d86581f4a0c6 charset_to_utf8() isn't used anymore, so renamed charset_to_utf8_full() to it.
Timo Sirainen <tss@iki.fi>
parents: 6118
diff changeset
368 data, &pos, ctx->buf2);
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
369 if (pos != size) {
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
370 ctx->translation_size = size - pos;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
371 i_assert(ctx->translation_size <=
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
372 sizeof(ctx->translation_buf));
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
373 memcpy(ctx->translation_buf, data + pos,
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
374 ctx->translation_size);
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
375 }
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
376 output->data = ctx->buf2->data;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
377 output->size = ctx->buf2->used;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
378 }
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
379
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
380 output->hdr = NULL;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
381 return TRUE;
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
382 }
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
383
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
384 bool message_decoder_decode_next_block(struct message_decoder_context *ctx,
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
385 struct message_block *input,
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
386 struct message_block *output)
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
387 {
5410
73032525bca0 Don't try to access output variable's contents. They are undefined at least
Timo Sirainen <tss@iki.fi>
parents: 4903
diff changeset
388 if (input->part != ctx->prev_part) {
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
389 /* MIME part changed. */
6916
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
390 message_decoder_decode_reset(ctx);
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
391 }
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
392
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
393 output->part = input->part;
5410
73032525bca0 Don't try to access output variable's contents. They are undefined at least
Timo Sirainen <tss@iki.fi>
parents: 4903
diff changeset
394 ctx->prev_part = input->part;
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
395
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
396 if (input->hdr != NULL)
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
397 return message_decode_header(ctx, input->hdr, output);
6916
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
398 else if (input->size != 0)
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
399 return message_decode_body(ctx, input, output);
6916
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
400 else {
6942
3af80c378959 Crashfix
Timo Sirainen <tss@iki.fi>
parents: 6940
diff changeset
401 output->hdr = NULL;
3af80c378959 Crashfix
Timo Sirainen <tss@iki.fi>
parents: 6940
diff changeset
402 output->size = 0;
9322
ce612bdafc84 message-decoder now supports optionally returning non-text bodyparts as-is.
Timo Sirainen <tss@iki.fi>
parents: 8590
diff changeset
403 message_decode_body_init_charset(ctx, input->part);
6916
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
404 return TRUE;
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
405 }
4608
61e0fe257a83 Added message-decoder to decode message's contents into readable UTF-8.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
406 }
6916
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
407
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
408 void message_decoder_decode_reset(struct message_decoder_context *ctx)
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
409 {
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
410 i_free_and_null(ctx->content_charset);
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
411 ctx->content_type = CONTENT_TYPE_BINARY;
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
412 ctx->charset_utf8 = TRUE;
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
413 ctx->encoding_size = 0;
0b8a78914db7 Message decoding wasn't reset properly between messages when searching.
Timo Sirainen <tss@iki.fi>
parents: 6915
diff changeset
414 }