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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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58
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42 ngx_err_t err;
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43 ngx_atomic_uint_t n;
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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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42
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47 file->name.len = path->name.len + 1 + path->len + NGX_ATOMIC_T_LEN;
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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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42
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62 n = 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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66 "%0muA%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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42
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95 n = 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
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186
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186 ngx_err_t
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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
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218
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201 if (ngx_create_dir(dir, access) == NGX_FILE_ERROR) {
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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 = '/';
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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
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48
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216 ngx_init_temp_number(void)
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0
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217 {
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42
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218 ngx_temp_number = 0;
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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
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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) {
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250
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227 ngx_temp_number += ngx_random_number;
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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
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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
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16
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239 ssize_t level;
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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;
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28
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242 ngx_path_t *path, **slot;
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0
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243
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16
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244 slot = (ngx_path_t **) (p + cmd->offset);
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0
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245
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16
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246 if (*slot) {
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0
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247 return "is duplicate";
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248 }
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249
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50
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250 path = ngx_pcalloc(cf->pool, sizeof(ngx_path_t));
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251 if (path == NULL) {
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16
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252 return NGX_CONF_ERROR;
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253 }
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0
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254
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16
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255 value = cf->args->elts;
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0
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256
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257 path->name = value[1];
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178
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258
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210
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259 if (path->name.data[path->name.len - 1] == '/') {
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260 path->name.len--;
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261 }
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262
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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
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0
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267 path->len = 0;
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28
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268 path->cleaner = (ngx_gc_handler_pt) cmd->post;
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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;
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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
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28
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286 *slot = path;
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16
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287
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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
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42
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296 ngx_int_t
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297 ngx_add_path(ngx_conf_t *cf, ngx_path_t **slot)
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28
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298 {
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299 ngx_uint_t i, n;
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300 ngx_path_t *path, **p;
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301
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302 path = *slot;
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303
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304 p = cf->cycle->pathes.elts;
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16
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305 for (i = 0; i < cf->cycle->pathes.nelts; i++) {
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28
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306 if (p[i]->name.len == path->name.len
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307 && ngx_strcmp(p[i]->name.data, path->name.data) == 0)
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16
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308 {
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309 for (n = 0; n < 3; n++) {
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28
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310 if (p[i]->level[n] != path->level[n]) {
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311 if (path->conf_file == NULL) {
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30
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312 if (p[i]->conf_file == NULL) {
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313 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
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314 "the default path name \"%V\" has "
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315 "the same name as another default path, "
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316 "but the different levels, you need to "
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317 "redefine one of them in http section",
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318 &p[i]->name);
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319 return NGX_ERROR;
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320 }
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321
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28
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322 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
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323 "the path name \"%V\" in %s:%ui has "
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30
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324 "the same name as default path, but "
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28
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325 "the different levels, you need to "
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326 "define default path in http section",
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327 &p[i]->name, p[i]->conf_file, p[i]->line);
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328 return NGX_ERROR;
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329 }
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330
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16
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331 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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28
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332 "the same path name \"%V\" in %s:%ui "
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333 "has the different levels than",
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334 &p[i]->name, p[i]->conf_file, p[i]->line);
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335 return NGX_ERROR;
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16
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336 }
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337
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28
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338 if (p[i]->level[n] == 0) {
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16
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339 break;
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340 }
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341 }
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342
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28
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343 *slot = p[i];
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16
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344
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28
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345 return NGX_OK;
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16
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346 }
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347 }
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348
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50
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349 p = ngx_array_push(&cf->cycle->pathes);
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350 if (p == NULL) {
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28
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351 return NGX_ERROR;
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16
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352 }
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353
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28
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354 *p = path;
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0
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355
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28
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356 return NGX_OK;
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0
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357 }
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16
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358
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359
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42
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360 ngx_int_t
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361 ngx_create_pathes(ngx_cycle_t *cycle, ngx_uid_t user)
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16
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362 {
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363 ngx_err_t err;
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364 ngx_uint_t i;
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365 ngx_path_t **path;
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366 #if !(NGX_WIN32)
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367 ngx_file_info_t fi;
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|
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368 #endif
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369
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|
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370 path = cycle->pathes.elts;
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371 for (i = 0; i < cycle->pathes.nelts; i++) {
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372
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218
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373 if (ngx_create_dir(path[i]->name.data, 0700) == NGX_FILE_ERROR) {
|
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16
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374 err = ngx_errno;
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375 if (err != NGX_EEXIST) {
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376 ngx_log_error(NGX_LOG_EMERG, cycle->log, err,
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377 ngx_create_dir_n " \"%s\" failed",
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|
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378 path[i]->name.data);
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379 return NGX_ERROR;
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|
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380 }
|
|
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381 }
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382
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66
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383 if (user == (ngx_uid_t) NGX_CONF_UNSET_UINT) {
|
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16
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384 continue;
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385 }
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386
|
|
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387 #if !(NGX_WIN32)
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388
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|
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389 if (ngx_file_info((const char *) path[i]->name.data, &fi) == -1) {
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390 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
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391 ngx_file_info_n " \"%s\" failed", path[i]->name.data);
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392 return NGX_ERROR;
|
|
|
393 }
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|
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394
|
|
|
395 if (fi.st_uid != user) {
|
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|
396 if (chown((const char *) path[i]->name.data, user, -1) == -1) {
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397 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
398 "chown(\"%s\", %d) failed",
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|
|
399 path[i]->name.data, user);
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|
|
400 return NGX_ERROR;
|
|
|
401 }
|
|
|
402 }
|
|
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403
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|
|
404 if ((fi.st_mode & (S_IRUSR|S_IWUSR|S_IXUSR))
|
|
|
405 != (S_IRUSR|S_IWUSR|S_IXUSR))
|
|
|
406 {
|
|
|
407 fi.st_mode |= (S_IRUSR|S_IWUSR|S_IXUSR);
|
|
|
408
|
|
|
409 if (chmod((const char *) path[i]->name.data, fi.st_mode) == -1) {
|
|
|
410 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
411 "chmod() \"%s\" failed", path[i]->name.data);
|
|
|
412 return NGX_ERROR;
|
|
|
413 }
|
|
|
414 }
|
|
|
415
|
|
|
416 #endif
|
|
|
417 }
|
|
|
418
|
|
|
419 return NGX_OK;
|
|
|
420 }
|
|
272
|
421
|
|
|
422
|
|
|
423 ngx_int_t
|
|
|
424 ngx_walk_tree(ngx_tree_ctx_t *ctx, ngx_str_t *tree)
|
|
|
425 {
|
|
|
426 void *data, *prev;
|
|
|
427 u_char *p, *name;
|
|
|
428 size_t len;
|
|
|
429 ngx_int_t rc;
|
|
|
430 ngx_err_t err;
|
|
|
431 ngx_str_t file, buf;
|
|
|
432 ngx_dir_t dir;
|
|
|
433
|
|
|
434 buf.len = 0;
|
|
|
435 buf.data = NULL;
|
|
|
436
|
|
|
437 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->log, 0,
|
|
|
438 "walk tree \"%V\"", tree);
|
|
|
439
|
|
|
440 if (ngx_open_dir(tree, &dir) == NGX_ERROR) {
|
|
|
441 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
442 ngx_open_dir_n " \"%s\" failed", tree->data);
|
|
|
443 return NGX_ERROR;
|
|
|
444 }
|
|
|
445
|
|
|
446 prev = ctx->data;
|
|
|
447
|
|
276
|
448 if (ctx->alloc) {
|
|
|
449 data = ngx_alloc(ctx->alloc, ctx->log);
|
|
272
|
450 if (data == NULL) {
|
|
|
451 goto failed;
|
|
|
452 }
|
|
|
453
|
|
|
454 if (ctx->init_handler(data, prev) == NGX_ABORT) {
|
|
|
455 goto failed;
|
|
|
456 }
|
|
|
457
|
|
|
458 ctx->data = data;
|
|
|
459 }
|
|
|
460
|
|
|
461 for ( ;; ) {
|
|
|
462
|
|
|
463 ngx_set_errno(0);
|
|
|
464
|
|
|
465 if (ngx_read_dir(&dir) == NGX_ERROR) {
|
|
|
466 err = ngx_errno;
|
|
|
467
|
|
|
468 if (err == NGX_ENOMOREFILES) {
|
|
|
469 rc = NGX_OK;
|
|
|
470
|
|
|
471 } else {
|
|
|
472 ngx_log_error(NGX_LOG_CRIT, ctx->log, err,
|
|
|
473 ngx_read_dir_n " \"%s\" failed", tree->data);
|
|
|
474 rc = NGX_ERROR;
|
|
|
475 }
|
|
|
476
|
|
|
477 goto done;
|
|
|
478 }
|
|
|
479
|
|
|
480 len = ngx_de_namelen(&dir);
|
|
|
481 name = ngx_de_name(&dir);
|
|
|
482
|
|
|
483 ngx_log_debug2(NGX_LOG_DEBUG_CORE, ctx->log, 0,
|
|
|
484 "tree name %uz:\"%s\"", len, name);
|
|
|
485
|
|
|
486 if (len == 1 && name[0] == '.') {
|
|
|
487 continue;
|
|
|
488 }
|
|
|
489
|
|
|
490 if (len == 2 && name[0] == '.' && name[1] == '.') {
|
|
|
491 continue;
|
|
|
492 }
|
|
|
493
|
|
|
494 file.len = tree->len + 1 + len;
|
|
|
495
|
|
|
496 if (file.len + NGX_DIR_MASK_LEN > buf.len) {
|
|
|
497
|
|
|
498 if (buf.len) {
|
|
|
499 ngx_free(buf.data);
|
|
|
500 }
|
|
|
501
|
|
|
502 buf.len = tree->len + 1 + len + NGX_DIR_MASK_LEN;
|
|
|
503
|
|
|
504 buf.data = ngx_alloc(buf.len + 1, ctx->log);
|
|
|
505 if (buf.data == NULL) {
|
|
|
506 goto failed;
|
|
|
507 }
|
|
|
508 }
|
|
|
509
|
|
|
510 p = ngx_cpymem(buf.data, tree->data, tree->len);
|
|
|
511 *p++ = '/';
|
|
|
512 ngx_memcpy(p, name, len + 1);
|
|
|
513
|
|
|
514 file.data = buf.data;
|
|
|
515
|
|
|
516 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->log, 0,
|
|
|
517 "tree path \"%s\"", file.data);
|
|
|
518
|
|
|
519 if (!dir.valid_info) {
|
|
|
520 if (ngx_de_info(file.data, &dir) == NGX_FILE_ERROR) {
|
|
|
521 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
522 ngx_de_info_n " \"%s\" failed", file.data);
|
|
|
523 continue;
|
|
|
524 }
|
|
|
525 }
|
|
|
526
|
|
|
527 if (ngx_de_is_file(&dir)) {
|
|
|
528
|
|
|
529 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->log, 0,
|
|
|
530 "tree file \"%s\"", file.data);
|
|
|
531
|
|
276
|
532 ctx->size = ngx_de_size(&dir);
|
|
|
533 ctx->access = ngx_de_access(&dir);
|
|
|
534 ctx->mtime = ngx_de_mtime(&dir);
|
|
|
535
|
|
272
|
536 if (ctx->file_handler(ctx, &file) == NGX_ABORT) {
|
|
|
537 goto failed;
|
|
|
538 }
|
|
|
539
|
|
|
540 } else if (ngx_de_is_dir(&dir)) {
|
|
|
541
|
|
|
542 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->log, 0,
|
|
|
543 "tree enter dir \"%s\"", file.data);
|
|
|
544
|
|
276
|
545 ctx->access = ngx_de_access(&dir);
|
|
|
546 ctx->mtime = ngx_de_mtime(&dir);
|
|
|
547
|
|
272
|
548 if (ctx->pre_tree_handler(ctx, &file) == NGX_ABORT) {
|
|
|
549 goto failed;
|
|
|
550 }
|
|
|
551
|
|
|
552 if (ngx_walk_tree(ctx, &file) == NGX_ABORT) {
|
|
|
553 goto failed;
|
|
|
554 }
|
|
|
555
|
|
276
|
556 ctx->access = ngx_de_access(&dir);
|
|
|
557 ctx->mtime = ngx_de_mtime(&dir);
|
|
|
558
|
|
272
|
559 if (ctx->post_tree_handler(ctx, &file) == NGX_ABORT) {
|
|
|
560 goto failed;
|
|
|
561 }
|
|
|
562
|
|
|
563 } else {
|
|
|
564
|
|
|
565 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->log, 0,
|
|
|
566 "tree special \"%s\"", file.data);
|
|
|
567
|
|
|
568 if (ctx->spec_handler(ctx, &file) == NGX_ABORT) {
|
|
|
569 goto failed;
|
|
|
570 }
|
|
|
571 }
|
|
|
572 }
|
|
|
573
|
|
|
574 failed:
|
|
|
575
|
|
|
576 rc = NGX_ABORT;
|
|
|
577
|
|
|
578 done:
|
|
|
579
|
|
|
580 if (buf.len) {
|
|
|
581 ngx_free(buf.data);
|
|
|
582 }
|
|
|
583
|
|
276
|
584 if (ctx->alloc) {
|
|
272
|
585 ngx_free(ctx->data);
|
|
|
586 ctx->data = prev;
|
|
|
587 }
|
|
|
588
|
|
|
589 if (ngx_close_dir(&dir) == NGX_ERROR) {
|
|
|
590 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
591 ngx_close_dir_n " \"%s\" failed", tree->data);
|
|
|
592 }
|
|
|
593
|
|
|
594 return rc;
|
|
|
595 }
|
