Mercurial > dovecot > core-2.2

annotate src/lib-storage/index/dbox-single/sdbox-file.c @ 10965:1bb98ad1af8b HEAD

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sdbox: Copying is now done with hard links.
author Timo Sirainen <tss@iki.fi>
date Sun, 21 Mar 2010 18:12:24 +0200
parents 3d7fb69184b3
children 8ec35eb6d7b3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10582
615eef3139c2 Updated copyright notices to include year 2010.
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1 /* Copyright (c) 2007-2010 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 "eacces-error.h"
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5 #include "mkdir-parents.h"
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6 #include "sdbox-storage.h"
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7 #include "sdbox-file.h"
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8
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9 #include <stdio.h>
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10
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11 static void sdbox_file_init_paths(struct sdbox_file *file, const char *fname)
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12 {
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13 struct mailbox *box = &file->mbox->box;
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14 const char *alt_path;
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15
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16 i_free(file->file.primary_path);
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17 i_free(file->file.alt_path);
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18 file->file.primary_path =
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19 i_strdup_printf("%s/%s", box->path, fname);
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20
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21 alt_path = mailbox_list_get_path(box->list, box->name,
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22 MAILBOX_LIST_PATH_TYPE_ALT_MAILBOX);
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23 if (alt_path != NULL)
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24 file->file.alt_path = i_strdup_printf("%s/%s", alt_path, fname);
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25 }
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26
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27 struct dbox_file *sdbox_file_init(struct sdbox_mailbox *mbox, uint32_t uid)
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28 {
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29 struct sdbox_file *file;
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30 const char *fname;
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31
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32 file = i_new(struct sdbox_file, 1);
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33 file->file.storage = &mbox->storage->storage;
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34 file->mbox = mbox;
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35 T_BEGIN {
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36 if (uid != 0) {
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37 fname = t_strdup_printf(SDBOX_MAIL_FILE_FORMAT, uid);
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38 sdbox_file_init_paths(file, fname);
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39 file->uid = uid;
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40 } else {
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41 file->file.primary_path =
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42 i_strdup_printf("%s/%s",
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43 file->mbox->box.path,
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44 dbox_generate_tmp_filename());
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45 }
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46 } T_END;
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47 dbox_file_init(&file->file);
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48 return &file->file;
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49 }
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50
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51 struct dbox_file *sdbox_file_create(struct sdbox_mailbox *mbox)
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52 {
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53 struct dbox_file *file;
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54
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55 file = sdbox_file_init(mbox, 0);
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56 file->fd = file->storage->v.
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57 file_create_fd(file, file->primary_path, FALSE);
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58 return file;
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59 }
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60
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61 int sdbox_file_assign_uid(struct sdbox_file *file, uint32_t uid)
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62 {
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63 const char *old_path, *new_fname, *new_path;
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64
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65 i_assert(file->uid == 0);
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66 i_assert(uid != 0);
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67
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68 old_path = file->file.cur_path;
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69 new_fname = t_strdup_printf(SDBOX_MAIL_FILE_FORMAT, uid);
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70 new_path = t_strdup_printf("%s/%s", file->mbox->box.path,
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71 new_fname);
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72 if (rename(old_path, new_path) < 0) {
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73 mail_storage_set_critical(&file->file.storage->storage,
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74 "rename(%s, %s) failed: %m",
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75 old_path, new_path);
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76 return -1;
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77 }
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78 sdbox_file_init_paths(file, new_fname);
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79 file->uid = uid;
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80 return 0;
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81 }
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82
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83 int sdbox_file_create_fd(struct dbox_file *file, const char *path, bool parents)
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84 {
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85 struct sdbox_file *sfile = (struct sdbox_file *)file;
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86 struct mailbox *box = &sfile->mbox->box;
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87 const char *p, *dir;
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88 mode_t old_mask;
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89 int fd;
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90
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91 old_mask = umask(0666 & ~box->file_create_mode);
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92 fd = open(path, O_RDWR | O_CREAT | O_TRUNC, 0666);
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93 umask(old_mask);
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94 if (fd == -1 && errno == ENOENT && parents &&
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95 (p = strrchr(path, '/')) != NULL) {
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96 dir = t_strdup_until(path, p);
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97 if (mkdir_parents_chgrp(dir, box->dir_create_mode,
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98 box->file_create_gid,
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99 box->file_create_gid_origin) < 0) {
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100 mail_storage_set_critical(box->storage,
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101 "mkdir_parents(%s) failed: %m", dir);
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102 return -1;
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103 }
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104 /* try again */
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105 old_mask = umask(0666 & ~box->file_create_mode);
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106 fd = open(path, O_RDWR | O_CREAT | O_TRUNC, 0666);
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107 umask(old_mask);
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108 }
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109 if (fd == -1) {
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110 mail_storage_set_critical(box->storage,
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111 "open(%s, O_CREAT) failed: %m", path);
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112 } else if (box->file_create_gid == (gid_t)-1) {
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113 /* no group change */
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114 } else if (fchown(fd, (uid_t)-1, box->file_create_gid) < 0) {
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115 if (errno == EPERM) {
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116 mail_storage_set_critical(box->storage, "%s",
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117 eperm_error_get_chgrp("fchown", path,
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118 box->file_create_gid,
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119 box->file_create_gid_origin));
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120 } else {
0bb321c347ae Split dbox (single-dbox) and mdbox (multi-dbox) into separate storage backends.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
121 mail_storage_set_critical(box->storage,
0bb321c347ae Split dbox (single-dbox) and mdbox (multi-dbox) into separate storage backends.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
122 "fchown(%s, -1, %ld) failed: %m",
0bb321c347ae Split dbox (single-dbox) and mdbox (multi-dbox) into separate storage backends.
Timo Sirainen <tss@iki.fi>
parents:
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123 path, (long)box->file_create_gid);
0bb321c347ae Split dbox (single-dbox) and mdbox (multi-dbox) into separate storage backends.
Timo Sirainen <tss@iki.fi>
parents:
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124 }
0bb321c347ae Split dbox (single-dbox) and mdbox (multi-dbox) into separate storage backends.
Timo Sirainen <tss@iki.fi>
parents:
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125 /* continue anyway */
0bb321c347ae Split dbox (single-dbox) and mdbox (multi-dbox) into separate storage backends.
Timo Sirainen <tss@iki.fi>
parents:
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126 }
0bb321c347ae Split dbox (single-dbox) and mdbox (multi-dbox) into separate storage backends.
Timo Sirainen <tss@iki.fi>
parents:
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127 return fd;
0bb321c347ae Split dbox (single-dbox) and mdbox (multi-dbox) into separate storage backends.
Timo Sirainen <tss@iki.fi>
parents:
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128 }