Mercurial > dovecot > core-2.2
annotate src/doveadm/doveadm-mail-fetch.c @ 11208:f10ad708d748 HEAD
doveadm: Reduced code duplication.
author | Timo Sirainen <tss@iki.fi> |
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date | Wed, 28 Apr 2010 23:18:36 +0300 |
parents | 1ec4eb879f0e |
children | c7cb58f1d2c6 |
rev | line source |
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1 /* Copyright (c) 2010 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 "array.h" |
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5 #include "istream.h" |
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6 #include "ostream.h" |
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7 #include "base64.h" |
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8 #include "randgen.h" |
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9 #include "str.h" |
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10 #include "message-size.h" |
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11 #include "imap-util.h" |
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12 #include "mail-namespace.h" |
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13 #include "mail-storage.h" |
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14 #include "mail-search.h" |
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15 #include "doveadm-mail.h" |
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16 #include "doveadm-mail-list-iter.h" |
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17 |
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18 #include <stdio.h> |
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19 |
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20 struct fetch_context { |
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21 struct mail_search_args *search_args; |
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22 struct ostream *output; |
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23 struct mail *mail; |
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24 |
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25 ARRAY_DEFINE(fields, const struct fetch_field); |
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26 enum mail_fetch_field wanted_fields; |
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27 |
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28 string_t *hdr; |
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29 const char *prefix; |
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30 }; |
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31 |
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32 static int fetch_mailbox(struct fetch_context *ctx) |
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33 { |
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34 const char *value; |
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35 |
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36 if (mail_get_special(ctx->mail, MAIL_FETCH_MAILBOX_NAME, &value) < 0) |
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37 return -1; |
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38 str_append(ctx->hdr, value); |
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39 return 0; |
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40 } |
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41 |
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42 static int fetch_seq(struct fetch_context *ctx) |
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43 { |
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44 str_printfa(ctx->hdr, "%u", ctx->mail->seq); |
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45 return 0; |
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46 } |
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47 |
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48 static int fetch_uid(struct fetch_context *ctx) |
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49 { |
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50 str_printfa(ctx->hdr, "%u", ctx->mail->seq); |
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51 return 0; |
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52 } |
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53 |
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54 static int fetch_guid(struct fetch_context *ctx) |
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55 { |
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56 const char *value; |
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57 |
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58 if (mail_get_special(ctx->mail, MAIL_FETCH_GUID, &value) < 0) |
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59 return -1; |
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60 str_append(ctx->hdr, value); |
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61 return 0; |
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62 } |
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63 |
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64 static int fetch_flags(struct fetch_context *ctx) |
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65 { |
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66 imap_write_flags(ctx->hdr, mail_get_flags(ctx->mail), |
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67 mail_get_keywords(ctx->mail)); |
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68 return 0; |
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69 } |
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70 |
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71 static void flush_hdr(struct fetch_context *ctx) |
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72 { |
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73 o_stream_send(ctx->output, str_data(ctx->hdr), str_len(ctx->hdr)); |
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74 str_truncate(ctx->hdr, 0); |
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75 } |
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76 |
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77 static int fetch_hdr(struct fetch_context *ctx) |
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78 { |
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79 struct istream *input; |
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80 struct message_size hdr_size; |
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81 int ret = 0; |
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82 |
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83 if (mail_get_stream(ctx->mail, &hdr_size, NULL, &input) < 0) |
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84 return -1; |
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85 |
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86 str_append_c(ctx->hdr, '\n'); |
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87 flush_hdr(ctx); |
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88 input = i_stream_create_limit(input, hdr_size.physical_size); |
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89 while (!i_stream_is_eof(input)) { |
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90 if (o_stream_send_istream(ctx->output, input) <= 0) |
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91 i_fatal("write(stdout) failed: %m"); |
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92 } |
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93 if (input->stream_errno != 0) { |
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94 i_error("read() failed: %m"); |
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95 ret = -1; |
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96 } |
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97 i_stream_unref(&input); |
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98 o_stream_flush(ctx->output); |
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99 return ret; |
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100 } |
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101 |
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102 static int fetch_body(struct fetch_context *ctx) |
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103 { |
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104 struct istream *input; |
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105 struct message_size hdr_size; |
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106 int ret = 0; |
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107 |
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108 if (mail_get_stream(ctx->mail, &hdr_size, NULL, &input) < 0) |
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109 return -1; |
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110 |
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111 str_append_c(ctx->hdr, '\n'); |
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112 flush_hdr(ctx); |
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113 i_stream_skip(input, hdr_size.physical_size); |
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114 while (!i_stream_is_eof(input)) { |
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115 if (o_stream_send_istream(ctx->output, input) <= 0) |
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116 i_fatal("write(stdout) failed: %m"); |
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117 } |
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118 if (input->stream_errno != 0) { |
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119 i_error("read() failed: %m"); |
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120 ret = -1; |
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121 } |
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122 o_stream_flush(ctx->output); |
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123 return ret; |
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124 } |
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125 |
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126 static int fetch_text(struct fetch_context *ctx) |
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127 { |
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128 struct istream *input; |
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129 int ret = 0; |
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130 |
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131 if (mail_get_stream(ctx->mail, NULL, NULL, &input) < 0) |
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132 return -1; |
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133 |
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134 str_append_c(ctx->hdr, '\n'); |
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135 flush_hdr(ctx); |
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136 while (!i_stream_is_eof(input)) { |
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137 if (o_stream_send_istream(ctx->output, input) <= 0) |
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138 i_fatal("write(stdout) failed: %m"); |
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139 } |
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140 if (input->stream_errno != 0) { |
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141 i_error("read() failed: %m"); |
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142 ret = -1; |
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143 } |
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144 o_stream_flush(ctx->output); |
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145 return ret; |
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146 } |
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147 |
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148 static int fetch_size_physical(struct fetch_context *ctx) |
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149 { |
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150 uoff_t size; |
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151 |
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152 if (mail_get_physical_size(ctx->mail, &size) < 0) |
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153 return -1; |
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154 str_printfa(ctx->hdr, "%"PRIuUOFF_T, size); |
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155 return 0; |
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156 } |
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157 |
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158 static int fetch_size_virtual(struct fetch_context *ctx) |
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159 { |
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160 uoff_t size; |
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161 |
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162 if (mail_get_virtual_size(ctx->mail, &size) < 0) |
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163 return -1; |
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164 str_printfa(ctx->hdr, "%"PRIuUOFF_T, size); |
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165 return 0; |
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166 } |
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167 |
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168 static int fetch_date_received(struct fetch_context *ctx) |
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169 { |
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170 time_t t; |
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171 |
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172 if (mail_get_received_date(ctx->mail, &t) < 0) |
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173 return -1; |
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174 str_printfa(ctx->hdr, "%s", unixdate2str(t)); |
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175 return 0; |
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176 } |
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177 |
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178 static int fetch_date_sent(struct fetch_context *ctx) |
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179 { |
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180 time_t t; |
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181 int tz; |
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182 char chr; |
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183 |
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184 if (mail_get_date(ctx->mail, &t, &tz) < 0) |
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185 return -1; |
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186 |
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187 chr = tz < 0 ? '-' : '+'; |
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188 if (tz < 0) tz = -tz; |
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189 str_printfa(ctx->hdr, "%s (%c%02u%02u)", unixdate2str(t), |
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190 chr, tz/60, tz%60); |
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191 return 0; |
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192 } |
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193 |
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194 static int fetch_date_saved(struct fetch_context *ctx) |
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195 { |
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196 time_t t; |
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197 |
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198 if (mail_get_save_date(ctx->mail, &t) < 0) |
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199 return -1; |
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200 str_printfa(ctx->hdr, "%s", unixdate2str(t)); |
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201 return 0; |
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202 } |
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203 |
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204 struct fetch_field { |
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205 const char *name; |
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206 enum mail_fetch_field wanted_fields; |
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207 int (*print)(struct fetch_context *ctx); |
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208 }; |
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209 |
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210 static const struct fetch_field fetch_fields[] = { |
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211 { "mailbox", 0, fetch_mailbox }, |
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212 { "seq", 0, fetch_seq }, |
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213 { "uid", 0, fetch_uid }, |
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214 { "guid", 0, fetch_guid }, |
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215 { "flags", MAIL_FETCH_FLAGS, fetch_flags }, |
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216 { "hdr", MAIL_FETCH_STREAM_HEADER, fetch_hdr }, |
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217 { "body", MAIL_FETCH_STREAM_BODY, fetch_body }, |
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218 { "text", MAIL_FETCH_STREAM_HEADER | |
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219 MAIL_FETCH_STREAM_BODY, fetch_text }, |
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220 { "size.physical", MAIL_FETCH_PHYSICAL_SIZE, fetch_size_physical }, |
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221 { "size.virtual", MAIL_FETCH_VIRTUAL_SIZE, fetch_size_virtual }, |
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222 { "date.received", MAIL_FETCH_RECEIVED_DATE, fetch_date_received }, |
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223 { "date.sent", MAIL_FETCH_DATE, fetch_date_sent }, |
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224 { "date.saved", MAIL_FETCH_SAVE_DATE, fetch_date_saved } |
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225 }; |
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226 |
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227 static const struct fetch_field *fetch_field_find(const char *name) |
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228 { |
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229 unsigned int i; |
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230 |
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231 for (i = 0; i < N_ELEMENTS(fetch_fields); i++) { |
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232 if (strcmp(fetch_fields[i].name, name) == 0) |
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233 return &fetch_fields[i]; |
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234 } |
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235 return NULL; |
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236 } |
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237 |
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238 static void print_fetch_fields(void) |
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239 { |
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240 unsigned int i; |
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241 |
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242 fprintf(stderr, "Available fetch fields: %s", fetch_fields[0].name); |
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243 for (i = 1; i < N_ELEMENTS(fetch_fields); i++) |
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244 fprintf(stderr, " %s", fetch_fields[i].name); |
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245 fprintf(stderr, "\n"); |
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246 } |
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247 |
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248 static void parse_fetch_fields(struct fetch_context *ctx, const char *str) |
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249 { |
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250 const char *const *fields, *name; |
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251 const struct fetch_field *field; |
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252 |
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253 t_array_init(&ctx->fields, 32); |
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254 fields = t_strsplit_spaces(str, " "); |
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255 for (; *fields != NULL; fields++) { |
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256 name = t_str_lcase(*fields); |
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257 |
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258 field = fetch_field_find(name); |
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259 if (field == NULL) { |
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260 print_fetch_fields(); |
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261 i_fatal("Unknown fetch field: %s", name); |
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262 } |
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263 ctx->wanted_fields |= field->wanted_fields; |
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264 |
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265 array_append(&ctx->fields, field, 1); |
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266 } |
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267 } |
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268 |
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269 static void |
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270 cmd_fetch_box(struct fetch_context *ctx, struct mailbox *box) |
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271 { |
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272 struct mail_storage *storage = mailbox_get_storage(box); |
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273 struct mailbox_transaction_context *t; |
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274 struct mail_search_context *search_ctx; |
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275 struct mail *mail; |
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276 const struct fetch_field *field; |
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277 |
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278 if (mailbox_sync(box, MAILBOX_SYNC_FLAG_FULL_READ) < 0) { |
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279 i_error("Syncing mailbox %s failed: %s", mailbox_get_vname(box), |
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280 mail_storage_get_last_error(storage, NULL)); |
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281 return; |
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282 } |
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283 |
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284 mail_search_args_init(ctx->search_args, box, FALSE, NULL); |
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285 t = mailbox_transaction_begin(box, 0); |
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286 search_ctx = mailbox_search_init(t, ctx->search_args, NULL); |
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287 mail = mail_alloc(t, ctx->wanted_fields, NULL); |
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288 while (mailbox_search_next(search_ctx, mail)) { |
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289 str_truncate(ctx->hdr, 0); |
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290 str_append(ctx->hdr, ctx->prefix); |
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291 |
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292 ctx->mail = mail; |
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293 array_foreach(&ctx->fields, field) { |
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294 str_printfa(ctx->hdr, "%s: ", field->name); |
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295 if (field->print(ctx) < 0) { |
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296 i_error("fetch(%s) failed for box=%s uid=%u: %s", |
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297 field->name, mailbox_get_vname(box), |
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298 mail->uid, mail_storage_get_last_error(storage, NULL)); |
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299 } |
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300 str_append_c(ctx->hdr, '\n'); |
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301 } |
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302 flush_hdr(ctx); |
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303 |
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304 ctx->mail = NULL; |
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305 } |
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306 mail_free(&mail); |
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307 if (mailbox_search_deinit(&search_ctx) < 0) { |
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308 i_error("Search failed: %s", |
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309 mail_storage_get_last_error(storage, NULL)); |
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310 } |
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311 mail_search_args_deinit(ctx->search_args); |
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312 (void)mailbox_transaction_commit(&t); |
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313 } |
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314 |
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315 void cmd_fetch(struct mail_user *user, const char *const args[]) |
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316 { |
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317 const enum mailbox_list_iter_flags iter_flags = |
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318 MAILBOX_LIST_ITER_VIRTUAL_NAMES | |
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319 MAILBOX_LIST_ITER_NO_AUTO_INBOX | |
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320 MAILBOX_LIST_ITER_RETURN_NO_FLAGS; |
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321 const char *fetch_fields = args[0]; |
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322 struct fetch_context ctx; |
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323 struct doveadm_mail_list_iter *iter; |
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324 const struct mailbox_info *info; |
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325 struct mailbox *box; |
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326 const char *storage_name; |
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327 unsigned char prefix_buf[9]; |
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328 |
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329 memset(&ctx, 0, sizeof(ctx)); |
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330 if (fetch_fields == NULL || args[1] == NULL) |
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331 doveadm_mail_help_name("fetch"); |
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332 parse_fetch_fields(&ctx, fetch_fields); |
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333 ctx.search_args = doveadm_mail_build_search_args(args + 1); |
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334 |
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335 ctx.output = o_stream_create_fd(STDOUT_FILENO, 0, FALSE); |
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336 |
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337 random_fill_weak(prefix_buf, sizeof(prefix_buf)); |
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338 ctx.hdr = str_new(default_pool, 512); |
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339 str_append(ctx.hdr, "==="); |
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340 base64_encode(prefix_buf, sizeof(prefix_buf), ctx.hdr); |
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341 str_append_c(ctx.hdr, '\n'); |
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342 ctx.prefix = t_strdup(str_c(ctx.hdr)); |
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343 str_truncate(ctx.hdr, 0); |
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344 |
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345 iter = doveadm_mail_list_iter_init(user, ctx.search_args, iter_flags); |
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346 while ((info = doveadm_mail_list_iter_next(iter)) != NULL) T_BEGIN { |
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347 storage_name = mail_namespace_get_storage_name(info->ns, |
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348 info->name); |
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349 box = mailbox_alloc(info->ns->list, storage_name, |
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350 MAILBOX_FLAG_KEEP_RECENT | |
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351 MAILBOX_FLAG_IGNORE_ACLS); |
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352 (void)cmd_fetch_box(&ctx, box); |
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353 mailbox_free(&box); |
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354 } T_END; |
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355 doveadm_mail_list_iter_deinit(&iter); |
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356 o_stream_unref(&ctx.output); |
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357 str_free(&ctx.hdr); |
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358 } |