Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/lib-storage/index/maildir/maildir-mail.c @ 3209:923ff19873d4 HEAD

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Major mail-storage API changes. It's now a bit cleaner and much more plugin friendly. Removed proxy_mailbox* stuff, they were difficult to use and there's now much easier way to replace them.
author Timo Sirainen <tss@iki.fi>
date Tue, 15 Mar 2005 21:01:50 +0200
parents 605c71410c67
children ff47e78ad717
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1915
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1 /* Copyright (C) 2003 Timo Sirainen */
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2
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3 #include "lib.h"
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4 #include "istream.h"
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5 #include "index-mail.h"
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6 #include "maildir-storage.h"
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7 #include "maildir-uidlist.h"
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8
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9 #include <fcntl.h>
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10 #include <unistd.h>
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11 #include <sys/stat.h>
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12
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13 static int do_open(struct index_mailbox *ibox, const char *path, void *context)
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14 {
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15 int *fd = context;
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16
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17 *fd = open(path, O_RDONLY);
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18 if (*fd != -1)
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19 return 1;
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20 if (errno == ENOENT)
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21 return 0;
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22
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23 mail_storage_set_critical(ibox->box.storage,
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24 "open(%s) failed: %m", path);
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25 return -1;
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26 }
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27
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28 static int do_stat(struct index_mailbox *ibox, const char *path, void *context)
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29 {
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30 struct stat *st = context;
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31
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32 if (stat(path, st) == 0)
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33 return 1;
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34 if (errno == ENOENT)
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35 return 0;
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36
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37 mail_storage_set_critical(ibox->box.storage,
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38 "stat(%s) failed: %m", path);
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39 return -1;
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40 }
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41
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42 static struct istream *
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43 maildir_open_mail(struct index_mailbox *ibox, uint32_t uid, int *deleted)
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44 {
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45 int fd;
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46
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47 *deleted = FALSE;
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48
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49 fd = -1;
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50 if (maildir_file_do(ibox, uid, do_open, &fd) < 0)
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51 return NULL;
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52
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53 if (fd == -1) {
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54 *deleted = TRUE;
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55 return NULL;
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56 }
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57
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58 if (ibox->mail_read_mmaped) {
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59 return i_stream_create_mmap(fd, default_pool,
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60 MAIL_MMAP_BLOCK_SIZE, 0, 0, TRUE);
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61 } else {
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62 return i_stream_create_file(fd, default_pool,
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63 MAIL_READ_BLOCK_SIZE, TRUE);
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64 }
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65 }
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66
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67 static time_t maildir_mail_get_received_date(struct mail *_mail)
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68 {
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69 struct index_mail *mail = (struct index_mail *) _mail;
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70 struct index_mail_data *data = &mail->data;
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71 struct stat st;
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72 int fd;
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73
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74 (void)index_mail_get_received_date(_mail);
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75 if (data->received_date != (time_t)-1)
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76 return data->received_date;
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77
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78 if (data->open_mail && data->stream == NULL) {
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79 /* we're going to open the mail anyway */
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80 (void)mail_get_stream(_mail, NULL, NULL);
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81 }
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82
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83 if (data->stream != NULL) {
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84 fd = i_stream_get_fd(data->stream);
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85 i_assert(fd != -1);
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86
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87 if (fstat(fd, &st) < 0) {
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88 mail_storage_set_critical(mail->ibox->box.storage,
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89 "fstat(maildir) failed: %m");
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90 return (time_t)-1;
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91 }
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92 } else {
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93 if (maildir_file_do(mail->ibox, mail->mail.mail.uid,
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94 do_stat, &st) <= 0)
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95 return (time_t)-1;
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96 }
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97
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98 data->received_date = st.st_mtime;
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99 mail_cache_add(mail->trans->cache_trans, mail->data.seq,
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100 MAIL_CACHE_RECEIVED_DATE,
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101 &data->received_date, sizeof(data->received_date));
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102 return data->received_date;
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103 }
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104
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105 static uoff_t maildir_mail_get_virtual_size(struct mail *_mail)
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106 {
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107 struct index_mail *mail = (struct index_mail *)_mail;
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108 struct index_mail_data *data = &mail->data;
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109 const char *fname, *p;
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110 uoff_t virtual_size;
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111 enum maildir_uidlist_rec_flag flags;
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112
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113 if (data->virtual_size != (uoff_t)-1)
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114 return data->virtual_size;
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115
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116 if ((mail->wanted_fields & MAIL_FETCH_VIRTUAL_SIZE) == 0) {
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117 data->virtual_size = index_mail_get_cached_virtual_size(mail);
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118 if (data->virtual_size != (uoff_t)-1)
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119 return data->virtual_size;
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120 }
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121
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122 fname = maildir_uidlist_lookup(mail->ibox->uidlist,
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123 mail->mail.mail.uid, &flags);
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124 if (fname == NULL)
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125 return (uoff_t)-1;
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126
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127 /* size can be included in filename */
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128 p = strstr(fname, ",W=");
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129 if (p != NULL) {
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130 p += 3;
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131 virtual_size = 0;
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132 while (*p >= '0' && *p <= '9') {
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133 virtual_size = virtual_size * 10 + (*p - '0');
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134 p++;
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135 }
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136
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137 if (*p == ':' || *p == ',' || *p == '\0') {
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138 mail_cache_add(mail->trans->cache_trans, mail->data.seq,
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139 MAIL_CACHE_VIRTUAL_FULL_SIZE,
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140 &virtual_size, sizeof(virtual_size));
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141 return virtual_size;
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142 }
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143 }
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144
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145 return index_mail_get_virtual_size(_mail);
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146 }
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147
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148 static const char *
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149 maildir_mail_get_special(struct mail *_mail, enum mail_fetch_field field)
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150 {
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151 struct index_mail *mail = (struct index_mail *)_mail;
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152 enum maildir_uidlist_rec_flag flags;
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153 const char *fname, *end;
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154
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155 if (field == MAIL_FETCH_UIDL_FILE_NAME) {
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156 fname = maildir_uidlist_lookup(mail->ibox->uidlist,
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157 mail->mail.mail.uid, &flags);
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158 end = strchr(fname, ':');
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159 return end == NULL ? fname : t_strdup_until(fname, end);
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160 }
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161
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162 return index_mail_get_special(_mail, field);
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163 }
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164
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165 static uoff_t maildir_mail_get_physical_size(struct mail *_mail)
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166 {
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167 struct index_mail *mail = (struct index_mail *)_mail;
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168 struct index_mail_data *data = &mail->data;
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169 struct stat st;
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170 const char *fname, *p;
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171 uoff_t size;
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172 enum maildir_uidlist_rec_flag flags;
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173
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174 size = index_mail_get_physical_size(_mail);
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175 if (size != (uoff_t)-1)
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176 return size;
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177
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178 fname = maildir_uidlist_lookup(mail->ibox->uidlist,
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179 mail->mail.mail.uid, &flags);
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180 if (fname == NULL)
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181 return (uoff_t)-1;
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182
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183 /* size can be included in filename */
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184 p = strstr(fname, ",S=");
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185 if (p != NULL) {
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186 p += 3;
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187 size = 0;
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188 while (*p >= '0' && *p <= '9') {
98f6057f27a1 Added mail.get_physical_size().
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189 size = size * 10 + (*p - '0');
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190 p++;
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191 }
98f6057f27a1 Added mail.get_physical_size().
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192
98f6057f27a1 Added mail.get_physical_size().
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193 if (*p != ':' && *p != ',' && *p != '\0')
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194 size = (uoff_t)-1;
98f6057f27a1 Added mail.get_physical_size().
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195 }
98f6057f27a1 Added mail.get_physical_size().
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196
98f6057f27a1 Added mail.get_physical_size().
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197 if (size == (uoff_t)-1) {
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198 if (maildir_file_do(mail->ibox, mail->mail.mail.uid,
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199 do_stat, &st) <= 0)
98f6057f27a1 Added mail.get_physical_size().
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200 return (uoff_t)-1;
98f6057f27a1 Added mail.get_physical_size().
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201 size = st.st_size;
98f6057f27a1 Added mail.get_physical_size().
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202 }
98f6057f27a1 Added mail.get_physical_size().
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203
98f6057f27a1 Added mail.get_physical_size().
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204 mail_cache_add(mail->trans->cache_trans, mail->data.seq,
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205 MAIL_CACHE_PHYSICAL_FULL_SIZE, &size, sizeof(size));
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206 data->physical_size = size;
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207 return size;
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208
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209 }
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210
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211 static struct istream *maildir_mail_get_stream(struct mail *_mail,
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212 struct message_size *hdr_size,
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213 struct message_size *body_size)
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214 {
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215 struct index_mail *mail = (struct index_mail *) _mail;
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216 struct index_mail_data *data = &mail->data;
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217 int deleted;
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218
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219 if (data->stream == NULL) {
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220 data->stream = maildir_open_mail(mail->ibox,
923ff19873d4 Major mail-storage API changes. It's now a bit cleaner and much more plugin
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221 mail->mail.mail.uid, &deleted);
2298
5beb0c20b6e8 Cache file fixes, API changes, etc. It's still in somewhat ugly state, but
Timo Sirainen <tss@iki.fi>
parents: 2061
diff changeset
222 if (data->stream == NULL) {
3067
4c92f9eae613 mail->expunged field wasn't actually set. Now it's always set if
Timo Sirainen <tss@iki.fi>
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diff changeset
223 _mail->expunged = deleted;
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224 return NULL;
2298
5beb0c20b6e8 Cache file fixes, API changes, etc. It's still in somewhat ugly state, but
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225 }
1915
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226 }
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227
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228 return index_mail_init_stream(mail, hdr_size, body_size);
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229 }
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diff changeset
230
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diff changeset
231 struct mail_vfuncs maildir_mail_vfuncs = {
923ff19873d4 Major mail-storage API changes. It's now a bit cleaner and much more plugin
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diff changeset
232 index_mail_free,
923ff19873d4 Major mail-storage API changes. It's now a bit cleaner and much more plugin
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diff changeset
233 index_mail_set_seq,
1915
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parents:
diff changeset
234
2317
0cf316c77b1b Recent flags should be fully working now with maildir.
Timo Sirainen <tss@iki.fi>
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diff changeset
235 index_mail_get_flags,
3016
61c8d205d887 Initial support for keywords. Syncing to mbox/maildir doesn't work yet.
Timo Sirainen <tss@iki.fi>
parents: 2996
diff changeset
236 index_mail_get_keywords,
1915
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
237 index_mail_get_parts,
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
238 maildir_mail_get_received_date,
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
239 index_mail_get_date,
2504
98f6057f27a1 Added mail.get_physical_size().
Timo Sirainen <tss@iki.fi>
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diff changeset
240 maildir_mail_get_virtual_size,
98f6057f27a1 Added mail.get_physical_size().
Timo Sirainen <tss@iki.fi>
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diff changeset
241 maildir_mail_get_physical_size,
1915
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
242 index_mail_get_header,
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
243 index_mail_get_headers,
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parents:
diff changeset
244 maildir_mail_get_stream,
2996
9219e788d774 Added %f pop3_uidl_format for maildir. Patch by Andrey Panin.
Timo Sirainen <tss@iki.fi>
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diff changeset
245 maildir_mail_get_special,
1915
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parents:
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246 index_mail_update_flags,
3016
61c8d205d887 Initial support for keywords. Syncing to mbox/maildir doesn't work yet.
Timo Sirainen <tss@iki.fi>
parents: 2996
diff changeset
247 index_mail_update_keywords,
1915
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
248 index_mail_expunge
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Timo Sirainen <tss@iki.fi>
parents:
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249 };