0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9
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10
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44
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11 static ngx_atomic_uint_t ngx_temp_number;
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250
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12 static ngx_atomic_uint_t ngx_random_number;
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0
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13
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14
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42
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15 ssize_t
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16 ngx_write_chain_to_temp_file(ngx_temp_file_t *tf, ngx_chain_t *chain)
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0
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17 {
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16
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18 ngx_int_t rc;
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0
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19
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20 if (tf->file.fd == NGX_INVALID_FILE) {
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21 rc = ngx_create_temp_file(&tf->file, tf->path, tf->pool,
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278
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22 tf->persistent, tf->clean, tf->access);
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0
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23
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24 if (rc == NGX_ERROR || rc == NGX_AGAIN) {
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25 return rc;
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26 }
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27
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216
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28 if (tf->log_level) {
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29 ngx_log_error(tf->log_level, tf->file.log, 0, "%s %V",
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186
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30 tf->warn, &tf->file.name);
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0
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31 }
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32 }
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33
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34 return ngx_write_chain_to_file(&tf->file, chain, tf->offset, tf->pool);
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35 }
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36
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37
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42
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38 ngx_int_t
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39 ngx_create_temp_file(ngx_file_t *file, ngx_path_t *path, ngx_pool_t *pool,
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278
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40 ngx_uint_t persistent, ngx_uint_t clean, ngx_uint_t access)
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0
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41 {
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282
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42 uint32_t n;
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58
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43 ngx_err_t err;
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112
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44 ngx_pool_cleanup_t *cln;
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45 ngx_pool_cleanup_file_t *clnf;
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0
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46
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282
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47 file->name.len = path->name.len + 1 + path->len + 10;
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0
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48
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50
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49 file->name.data = ngx_palloc(pool, file->name.len + 1);
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50 if (file->name.data == NULL) {
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16
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51 return NGX_ERROR;
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52 }
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0
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53
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54 #if 0
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55 for (i = 0; i < file->name.len; i++) {
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56 file->name.data[i] = 'X';
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57 }
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58 #endif
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59
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60 ngx_memcpy(file->name.data, path->name.data, path->name.len);
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61
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282
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62 n = (uint32_t) ngx_next_temp_number(0);
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0
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63
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64 for ( ;; ) {
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66
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65 (void) ngx_sprintf(file->name.data + path->name.len + 1 + path->len,
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282
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66 "%010uD%Z", n);
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0
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67
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68 ngx_create_hashed_filename(file, path);
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69
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112
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70 cln = ngx_pool_cleanup_add(pool, sizeof(ngx_pool_cleanup_file_t));
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71 if (cln == NULL) {
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72 return NGX_ERROR;
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73 }
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74
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276
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75 file->fd = ngx_open_tempfile(file->name.data, persistent, access);
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0
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76
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77 ngx_log_debug1(NGX_LOG_DEBUG_CORE, file->log, 0,
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78 "temp fd:%d", file->fd);
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79
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80 if (file->fd != NGX_INVALID_FILE) {
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112
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81
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278
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82 cln->handler = clean ? ngx_pool_delete_file : ngx_pool_cleanup_file;
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112
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83 clnf = cln->data;
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58
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84
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112
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85 clnf->fd = file->fd;
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86 clnf->name = file->name.data;
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87 clnf->log = pool->log;
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58
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88
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0
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89 return NGX_OK;
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90 }
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91
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92 err = ngx_errno;
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93
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94 if (err == NGX_EEXIST) {
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282
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95 n = (uint32_t) ngx_next_temp_number(1);
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0
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96 continue;
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97 }
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98
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99 if ((path->level[0] == 0)
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100 || (err != NGX_ENOENT
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10
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101 #if (NGX_WIN32)
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0
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102 && err != NGX_ENOTDIR
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103 #endif
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16
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104 ))
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105 {
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0
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106 ngx_log_error(NGX_LOG_CRIT, file->log, err,
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107 ngx_open_tempfile_n " \"%s\" failed",
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108 file->name.data);
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109 return NGX_ERROR;
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110 }
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111
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112 if (ngx_create_path(file, path) == NGX_ERROR) {
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113 return NGX_ERROR;
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114 }
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115 }
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116 }
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117
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118
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42
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119 void
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120 ngx_create_hashed_filename(ngx_file_t *file, ngx_path_t *path)
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0
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121 {
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66
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122 size_t name, pos, level;
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123 ngx_uint_t i;
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0
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124
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125 name = file->name.len;
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126 pos = path->name.len + 1;
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127
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128 file->name.data[path->name.len + path->len] = '/';
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129
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130 for (i = 0; i < 3; i++) {
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131 level = path->level[i];
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132
|
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133 if (level == 0) {
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134 break;
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135 }
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136
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137 name -= level;
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138 file->name.data[pos - 1] = '/';
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139 ngx_memcpy(&file->name.data[pos], &file->name.data[name], level);
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140 pos += level + 1;
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141 }
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142
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143 ngx_log_debug1(NGX_LOG_DEBUG_CORE, file->log, 0,
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144 "hashed path: %s", file->name.data);
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145 }
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146
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147
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42
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148 ngx_int_t
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149 ngx_create_path(ngx_file_t *file, ngx_path_t *path)
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0
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150 {
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66
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151 size_t pos;
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152 ngx_err_t err;
|
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153 ngx_uint_t i;
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0
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154
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155 pos = path->name.len;
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156
|
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157 for (i = 0; i < 3; i++) {
|
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158 if (path->level[i] == 0) {
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159 break;
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160 }
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161
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162 pos += path->level[i] + 1;
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163
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164 file->name.data[pos] = '\0';
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165
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166 ngx_log_debug1(NGX_LOG_DEBUG_CORE, file->log, 0,
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167 "temp file: \"%s\"", file->name.data);
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168
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218
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169 if (ngx_create_dir(file->name.data, 0700) == NGX_FILE_ERROR) {
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0
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170 err = ngx_errno;
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171 if (err != NGX_EEXIST) {
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172 ngx_log_error(NGX_LOG_CRIT, file->log, err,
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173 ngx_create_dir_n " \"%s\" failed",
|
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174 file->name.data);
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175 return NGX_ERROR;
|
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176 }
|
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177 }
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178
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179 file->name.data[pos] = '/';
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180 }
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181
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182 return NGX_OK;
|
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183 }
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184
|
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185
|
186
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186 ngx_err_t
|
218
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187 ngx_create_full_path(u_char *dir, ngx_uint_t access)
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186
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188 {
|
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189 u_char *p, ch;
|
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190 ngx_err_t err;
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191
|
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192 for (p = dir + 1; *p; p++) {
|
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193 ch = *p;
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194
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195 if (ch != '/') {
|
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196 continue;
|
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197 }
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198
|
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199 *p = '\0';
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200
|
218
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201 if (ngx_create_dir(dir, access) == NGX_FILE_ERROR) {
|
186
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202 err = ngx_errno;
|
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203 if (err != NGX_EEXIST) {
|
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204 return err;
|
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205 }
|
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206 }
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207
|
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208 *p = '/';
|
|
209 }
|
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210
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211 return 0;
|
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212 }
|
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213
|
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214
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42
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215 void
|
48
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216 ngx_init_temp_number(void)
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0
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217 {
|
42
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218 ngx_temp_number = 0;
|
250
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219 ngx_random_number = 123456;
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0
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220 }
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221
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222
|
44
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223 ngx_atomic_uint_t
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42
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224 ngx_next_temp_number(ngx_uint_t collision)
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0
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225 {
|
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226 if (collision) {
|
250
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227 ngx_temp_number += ngx_random_number;
|
0
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228 }
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229
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230 return ngx_temp_number++;
|
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231 }
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232
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233
|
42
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234 char *
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235 ngx_conf_set_path_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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0
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236 {
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237 char *p = conf;
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238
|
16
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239 ssize_t level;
|
178
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240 ngx_str_t *value;
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0
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241 ngx_uint_t i, n;
|
28
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242 ngx_path_t *path, **slot;
|
0
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243
|
16
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244 slot = (ngx_path_t **) (p + cmd->offset);
|
0
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245
|
16
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246 if (*slot) {
|
0
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247 return "is duplicate";
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248 }
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249
|
50
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250 path = ngx_pcalloc(cf->pool, sizeof(ngx_path_t));
|
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251 if (path == NULL) {
|
16
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252 return NGX_CONF_ERROR;
|
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253 }
|
0
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254
|
16
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255 value = cf->args->elts;
|
0
|
256
|
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257 path->name = value[1];
|
178
|
258
|
210
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259 if (path->name.data[path->name.len - 1] == '/') {
|
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260 path->name.len--;
|
|
261 }
|
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262
|
178
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263 if (ngx_conf_full_name(cf->cycle, &path->name) == NGX_ERROR) {
|
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264 return NULL;
|
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265 }
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266
|
0
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267 path->len = 0;
|
28
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268 path->cleaner = (ngx_gc_handler_pt) cmd->post;
|
16
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269 path->conf_file = cf->conf_file->file.name.data;
|
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270 path->line = cf->conf_file->line;
|
0
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271
|
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272 for (i = 0, n = 2; n < cf->args->nelts; i++, n++) {
|
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273 level = ngx_atoi(value[n].data, value[n].len);
|
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274 if (level == NGX_ERROR || level == 0) {
|
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275 return "invalid value";
|
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276 }
|
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277
|
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278 path->level[i] = level;
|
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279 path->len += level + 1;
|
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280 }
|
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281
|
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282 while (i < 3) {
|
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283 path->level[i++] = 0;
|
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284 }
|
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285
|
28
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286 *slot = path;
|
16
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287
|
28
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288 if (ngx_add_path(cf, slot) == NGX_ERROR) {
|
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289 return NGX_CONF_ERROR;
|
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290 }
|
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291
|
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292 return NGX_CONF_OK;
|
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293 }
|
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294
|
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295
|
318
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296 char *
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297 ngx_conf_set_access_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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298 {
|
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299 char *confp = conf;
|
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300
|
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301 u_char *p;
|
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302 ngx_str_t *value;
|
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303 ngx_uint_t i, right, shift, *access;
|
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304
|
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305 access = (ngx_uint_t *) (confp + cmd->offset);
|
320
|
306
|
318
|
307 if (*access != NGX_CONF_UNSET_UINT) {
|
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308 return "is duplicate";
|
|
309 }
|
320
|
310
|
318
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311 value = cf->args->elts;
|
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312
|
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313 *access = 0600;
|
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314
|
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315 for (i = 1; i < cf->args->nelts; i++) {
|
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316
|
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317 p = value[i].data;
|
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318
|
|
319 if (ngx_strncmp(p, "user:", sizeof("user:") - 1) == 0) {
|
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320 shift = 6;
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321 p += sizeof("user:") - 1;
|
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322
|
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323 } else if (ngx_strncmp(p, "group:", sizeof("group:") - 1) == 0) {
|
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324 shift = 3;
|
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325 p += sizeof("group:") - 1;
|
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326
|
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327 } else if (ngx_strncmp(p, "all:", sizeof("all:") - 1) == 0) {
|
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328 shift = 0;
|
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329 p += sizeof("all:") - 1;
|
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330
|
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331 } else {
|
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332 goto invalid;
|
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333 }
|
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334
|
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335 if (ngx_strcmp(p, "rw") == 0) {
|
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336 right = 6;
|
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337
|
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338 } else if (ngx_strcmp(p, "r") == 0) {
|
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339 right = 4;
|
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340
|
|
341 } else {
|
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342 goto invalid;
|
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343 }
|
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344
|
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345 *access |= right << shift;
|
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346 }
|
320
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347
|
318
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348 return NGX_CONF_OK;
|
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349
|
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350 invalid:
|
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351
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352 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid value \"%V\"", &value[i]);
|
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353
|
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354 return NGX_CONF_ERROR;
|
|
355 }
|
|
356
|
|
357
|
42
|
358 ngx_int_t
|
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359 ngx_add_path(ngx_conf_t *cf, ngx_path_t **slot)
|
28
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360 {
|
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361 ngx_uint_t i, n;
|
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362 ngx_path_t *path, **p;
|
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363
|
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364 path = *slot;
|
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365
|
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366 p = cf->cycle->pathes.elts;
|
16
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367 for (i = 0; i < cf->cycle->pathes.nelts; i++) {
|
28
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368 if (p[i]->name.len == path->name.len
|
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369 && ngx_strcmp(p[i]->name.data, path->name.data) == 0)
|
16
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370 {
|
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371 for (n = 0; n < 3; n++) {
|
28
|
372 if (p[i]->level[n] != path->level[n]) {
|
|
373 if (path->conf_file == NULL) {
|
30
|
374 if (p[i]->conf_file == NULL) {
|
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375 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
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376 "the default path name \"%V\" has "
|
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377 "the same name as another default path, "
|
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378 "but the different levels, you need to "
|
|
379 "redefine one of them in http section",
|
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380 &p[i]->name);
|
|
381 return NGX_ERROR;
|
|
382 }
|
|
383
|
28
|
384 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
385 "the path name \"%V\" in %s:%ui has "
|
30
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386 "the same name as default path, but "
|
28
|
387 "the different levels, you need to "
|
|
388 "define default path in http section",
|
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389 &p[i]->name, p[i]->conf_file, p[i]->line);
|
|
390 return NGX_ERROR;
|
|
391 }
|
|
392
|
16
|
393 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
28
|
394 "the same path name \"%V\" in %s:%ui "
|
|
395 "has the different levels than",
|
|
396 &p[i]->name, p[i]->conf_file, p[i]->line);
|
|
397 return NGX_ERROR;
|
16
|
398 }
|
|
399
|
28
|
400 if (p[i]->level[n] == 0) {
|
16
|
401 break;
|
|
402 }
|
|
403 }
|
|
404
|
28
|
405 *slot = p[i];
|
16
|
406
|
28
|
407 return NGX_OK;
|
16
|
408 }
|
|
409 }
|
|
410
|
50
|
411 p = ngx_array_push(&cf->cycle->pathes);
|
|
412 if (p == NULL) {
|
28
|
413 return NGX_ERROR;
|
16
|
414 }
|
|
415
|
28
|
416 *p = path;
|
0
|
417
|
28
|
418 return NGX_OK;
|
0
|
419 }
|
16
|
420
|
|
421
|
42
|
422 ngx_int_t
|
|
423 ngx_create_pathes(ngx_cycle_t *cycle, ngx_uid_t user)
|
16
|
424 {
|
|
425 ngx_err_t err;
|
|
426 ngx_uint_t i;
|
|
427 ngx_path_t **path;
|
|
428 #if !(NGX_WIN32)
|
|
429 ngx_file_info_t fi;
|
|
430 #endif
|
|
431
|
|
432 path = cycle->pathes.elts;
|
|
433 for (i = 0; i < cycle->pathes.nelts; i++) {
|
|
434
|
218
|
435 if (ngx_create_dir(path[i]->name.data, 0700) == NGX_FILE_ERROR) {
|
16
|
436 err = ngx_errno;
|
|
437 if (err != NGX_EEXIST) {
|
|
438 ngx_log_error(NGX_LOG_EMERG, cycle->log, err,
|
|
439 ngx_create_dir_n " \"%s\" failed",
|
|
440 path[i]->name.data);
|
|
441 return NGX_ERROR;
|
|
442 }
|
|
443 }
|
|
444
|
66
|
445 if (user == (ngx_uid_t) NGX_CONF_UNSET_UINT) {
|
16
|
446 continue;
|
|
447 }
|
|
448
|
|
449 #if !(NGX_WIN32)
|
|
450
|
|
451 if (ngx_file_info((const char *) path[i]->name.data, &fi) == -1) {
|
|
452 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
453 ngx_file_info_n " \"%s\" failed", path[i]->name.data);
|
|
454 return NGX_ERROR;
|
|
455 }
|
|
456
|
|
457 if (fi.st_uid != user) {
|
|
458 if (chown((const char *) path[i]->name.data, user, -1) == -1) {
|
|
459 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
460 "chown(\"%s\", %d) failed",
|
|
461 path[i]->name.data, user);
|
|
462 return NGX_ERROR;
|
|
463 }
|
|
464 }
|
|
465
|
|
466 if ((fi.st_mode & (S_IRUSR|S_IWUSR|S_IXUSR))
|
|
467 != (S_IRUSR|S_IWUSR|S_IXUSR))
|
|
468 {
|
|
469 fi.st_mode |= (S_IRUSR|S_IWUSR|S_IXUSR);
|
|
470
|
|
471 if (chmod((const char *) path[i]->name.data, fi.st_mode) == -1) {
|
|
472 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
473 "chmod() \"%s\" failed", path[i]->name.data);
|
|
474 return NGX_ERROR;
|
|
475 }
|
|
476 }
|
|
477
|
|
478 #endif
|
|
479 }
|
|
480
|
|
481 return NGX_OK;
|
|
482 }
|
272
|
483
|
|
484
|
|
485 ngx_int_t
|
|
486 ngx_walk_tree(ngx_tree_ctx_t *ctx, ngx_str_t *tree)
|
|
487 {
|
|
488 void *data, *prev;
|
|
489 u_char *p, *name;
|
|
490 size_t len;
|
|
491 ngx_int_t rc;
|
|
492 ngx_err_t err;
|
|
493 ngx_str_t file, buf;
|
|
494 ngx_dir_t dir;
|
|
495
|
|
496 buf.len = 0;
|
|
497 buf.data = NULL;
|
|
498
|
|
499 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->log, 0,
|
|
500 "walk tree \"%V\"", tree);
|
|
501
|
|
502 if (ngx_open_dir(tree, &dir) == NGX_ERROR) {
|
|
503 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
504 ngx_open_dir_n " \"%s\" failed", tree->data);
|
|
505 return NGX_ERROR;
|
|
506 }
|
|
507
|
|
508 prev = ctx->data;
|
|
509
|
276
|
510 if (ctx->alloc) {
|
|
511 data = ngx_alloc(ctx->alloc, ctx->log);
|
272
|
512 if (data == NULL) {
|
|
513 goto failed;
|
|
514 }
|
|
515
|
|
516 if (ctx->init_handler(data, prev) == NGX_ABORT) {
|
|
517 goto failed;
|
|
518 }
|
|
519
|
|
520 ctx->data = data;
|
|
521 }
|
|
522
|
|
523 for ( ;; ) {
|
|
524
|
|
525 ngx_set_errno(0);
|
|
526
|
|
527 if (ngx_read_dir(&dir) == NGX_ERROR) {
|
|
528 err = ngx_errno;
|
|
529
|
|
530 if (err == NGX_ENOMOREFILES) {
|
|
531 rc = NGX_OK;
|
|
532
|
|
533 } else {
|
|
534 ngx_log_error(NGX_LOG_CRIT, ctx->log, err,
|
|
535 ngx_read_dir_n " \"%s\" failed", tree->data);
|
|
536 rc = NGX_ERROR;
|
|
537 }
|
|
538
|
|
539 goto done;
|
|
540 }
|
|
541
|
|
542 len = ngx_de_namelen(&dir);
|
|
543 name = ngx_de_name(&dir);
|
|
544
|
|
545 ngx_log_debug2(NGX_LOG_DEBUG_CORE, ctx->log, 0,
|
|
546 "tree name %uz:\"%s\"", len, name);
|
|
547
|
|
548 if (len == 1 && name[0] == '.') {
|
|
549 continue;
|
|
550 }
|
|
551
|
|
552 if (len == 2 && name[0] == '.' && name[1] == '.') {
|
|
553 continue;
|
|
554 }
|
|
555
|
|
556 file.len = tree->len + 1 + len;
|
|
557
|
|
558 if (file.len + NGX_DIR_MASK_LEN > buf.len) {
|
|
559
|
|
560 if (buf.len) {
|
|
561 ngx_free(buf.data);
|
|
562 }
|
|
563
|
|
564 buf.len = tree->len + 1 + len + NGX_DIR_MASK_LEN;
|
|
565
|
|
566 buf.data = ngx_alloc(buf.len + 1, ctx->log);
|
|
567 if (buf.data == NULL) {
|
|
568 goto failed;
|
|
569 }
|
|
570 }
|
|
571
|
|
572 p = ngx_cpymem(buf.data, tree->data, tree->len);
|
|
573 *p++ = '/';
|
|
574 ngx_memcpy(p, name, len + 1);
|
|
575
|
|
576 file.data = buf.data;
|
|
577
|
|
578 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->log, 0,
|
|
579 "tree path \"%s\"", file.data);
|
|
580
|
|
581 if (!dir.valid_info) {
|
|
582 if (ngx_de_info(file.data, &dir) == NGX_FILE_ERROR) {
|
|
583 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
584 ngx_de_info_n " \"%s\" failed", file.data);
|
|
585 continue;
|
|
586 }
|
|
587 }
|
|
588
|
|
589 if (ngx_de_is_file(&dir)) {
|
|
590
|
|
591 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->log, 0,
|
|
592 "tree file \"%s\"", file.data);
|
|
593
|
276
|
594 ctx->size = ngx_de_size(&dir);
|
|
595 ctx->access = ngx_de_access(&dir);
|
|
596 ctx->mtime = ngx_de_mtime(&dir);
|
|
597
|
272
|
598 if (ctx->file_handler(ctx, &file) == NGX_ABORT) {
|
|
599 goto failed;
|
|
600 }
|
|
601
|
|
602 } else if (ngx_de_is_dir(&dir)) {
|
|
603
|
|
604 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->log, 0,
|
|
605 "tree enter dir \"%s\"", file.data);
|
|
606
|
276
|
607 ctx->access = ngx_de_access(&dir);
|
|
608 ctx->mtime = ngx_de_mtime(&dir);
|
|
609
|
272
|
610 if (ctx->pre_tree_handler(ctx, &file) == NGX_ABORT) {
|
|
611 goto failed;
|
|
612 }
|
|
613
|
|
614 if (ngx_walk_tree(ctx, &file) == NGX_ABORT) {
|
|
615 goto failed;
|
|
616 }
|
|
617
|
276
|
618 ctx->access = ngx_de_access(&dir);
|
|
619 ctx->mtime = ngx_de_mtime(&dir);
|
|
620
|
272
|
621 if (ctx->post_tree_handler(ctx, &file) == NGX_ABORT) {
|
|
622 goto failed;
|
|
623 }
|
|
624
|
|
625 } else {
|
|
626
|
|
627 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->log, 0,
|
|
628 "tree special \"%s\"", file.data);
|
|
629
|
|
630 if (ctx->spec_handler(ctx, &file) == NGX_ABORT) {
|
|
631 goto failed;
|
|
632 }
|
|
633 }
|
|
634 }
|
|
635
|
|
636 failed:
|
|
637
|
|
638 rc = NGX_ABORT;
|
|
639
|
|
640 done:
|
|
641
|
|
642 if (buf.len) {
|
|
643 ngx_free(buf.data);
|
|
644 }
|
|
645
|
276
|
646 if (ctx->alloc) {
|
272
|
647 ngx_free(ctx->data);
|
|
648 ctx->data = prev;
|
|
649 }
|
|
650
|
|
651 if (ngx_close_dir(&dir) == NGX_ERROR) {
|
|
652 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
653 ngx_close_dir_n " \"%s\" failed", tree->data);
|
|
654 }
|
|
655
|
|
656 return rc;
|
|
657 }
|