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6
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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 #include <ngx_http.h>
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10
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11
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12 #if 0
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13
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14 typedef struct {
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15 ngx_buf_t *buf;
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16 size_t size;
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17 ngx_pool_t *pool;
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18 size_t alloc_size;
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19 ngx_chain_t **last_out;
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20 } ngx_http_autoindex_ctx_t;
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21
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22 #endif
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23
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24
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25 typedef struct {
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26 ngx_str_t name;
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10
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27 ngx_uint_t escape;
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6
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28 ngx_uint_t dir;
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29 time_t mtime;
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30 off_t size;
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31 } ngx_http_autoindex_entry_t;
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32
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33
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34 typedef struct {
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35 ngx_flag_t enable;
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36 } ngx_http_autoindex_loc_conf_t;
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37
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38
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39 #define NGX_HTTP_AUTOINDEX_NAME_LEN 50
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40
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41
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42 static int ngx_http_autoindex_cmp_entries(const void *one, const void *two);
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43 static ngx_int_t ngx_http_autoindex_error(ngx_http_request_t *r, ngx_dir_t *dir,
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44 u_char *name);
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45 static ngx_int_t ngx_http_autoindex_init(ngx_cycle_t *cycle);
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46 static void *ngx_http_autoindex_create_loc_conf(ngx_conf_t *cf);
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47 static char *ngx_http_autoindex_merge_loc_conf(ngx_conf_t *cf,
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48 void *parent, void *child);
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49
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50
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51 static ngx_command_t ngx_http_autoindex_commands[] = {
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52
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53 { ngx_string("autoindex"),
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54 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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55 ngx_conf_set_flag_slot,
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56 NGX_HTTP_LOC_CONF_OFFSET,
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57 offsetof(ngx_http_autoindex_loc_conf_t, enable),
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58 NULL },
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59
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60 ngx_null_command
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61 };
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62
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63
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64 ngx_http_module_t ngx_http_autoindex_module_ctx = {
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65 NULL, /* pre conf */
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66
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67 NULL, /* create main configuration */
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68 NULL, /* init main configuration */
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69
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70 NULL, /* create server configuration */
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71 NULL, /* merge server configuration */
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72
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73 ngx_http_autoindex_create_loc_conf, /* create location configration */
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74 ngx_http_autoindex_merge_loc_conf /* merge location configration */
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75 };
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76
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77
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78 ngx_module_t ngx_http_autoindex_module = {
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79 NGX_MODULE,
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80 &ngx_http_autoindex_module_ctx, /* module context */
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81 ngx_http_autoindex_commands, /* module directives */
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82 NGX_HTTP_MODULE, /* module type */
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83 ngx_http_autoindex_init, /* init module */
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84 NULL /* init child */
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85 };
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86
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87
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88 static u_char title[] =
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89 "<html>" CRLF
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90 "<head><title>Index of "
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91 ;
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92
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93
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94 static u_char header[] =
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95 "</title></head>" CRLF
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96 "<body bgcolor=\"white\">" CRLF
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97 "<h1>Index of "
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98 ;
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99
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100 static u_char tail[] =
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101 "</body>" CRLF
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102 "</html>" CRLF
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103 ;
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104
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105
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106 static ngx_int_t ngx_http_autoindex_handler(ngx_http_request_t *r)
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107 {
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22
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108 u_char *last;
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6
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109 size_t len;
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110 ngx_tm_t tm;
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22
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111 ngx_int_t rc;
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6
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112 ngx_uint_t i, level;
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113 ngx_err_t err;
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114 ngx_buf_t *b;
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115 ngx_chain_t out;
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116 ngx_str_t dname, fname;
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117 ngx_dir_t dir;
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118 ngx_pool_t *pool;
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119 ngx_array_t entries;
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120 ngx_http_core_loc_conf_t *clcf;
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121 ngx_http_autoindex_entry_t *entry;
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122 ngx_http_autoindex_loc_conf_t *alcf;
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123
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124 static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
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125 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
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126
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127 if (r->uri.data[r->uri.len - 1] != '/') {
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128 return NGX_DECLINED;
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129 }
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130
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131 alcf = ngx_http_get_module_loc_conf(r, ngx_http_autoindex_module);
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132
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133 if (!alcf->enable) {
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134 return NGX_DECLINED;
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135 }
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136
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137 /* TODO: pool should be temporary pool */
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138 pool = r->pool;
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139
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140 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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141
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142 if (clcf->alias) {
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143 dname.data = ngx_palloc(pool, clcf->root.len + r->uri.len
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144 + NGX_DIR_MASK_LEN
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145 - clcf->name.len);
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146 if (dname.data == NULL) {
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147 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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148 }
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149
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150 last = ngx_cpymem(dname.data, clcf->root.data, clcf->root.len);
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151 last = ngx_cpystrn(last, r->uri.data + clcf->name.len,
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152 r->uri.len - clcf->name.len);
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153
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154 } else {
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155 dname.data = ngx_palloc(pool, clcf->root.len + r->uri.len
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156 + NGX_DIR_MASK_LEN);
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157 if (dname.data == NULL) {
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158 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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159 }
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160
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161 last = ngx_cpymem(dname.data, clcf->root.data, clcf->root.len);
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162 last = ngx_cpystrn(last, r->uri.data, r->uri.len);
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163
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164 }
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165
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166 dname.len = last - dname.data;
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167
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168 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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169 "http autoindex: \"%s\"", dname.data);
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170
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171
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172 if (ngx_open_dir(&dname, &dir) == NGX_ERROR) {
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173 err = ngx_errno;
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174
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175 if (err == NGX_ENOENT || err == NGX_ENOTDIR) {
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176 level = NGX_LOG_ERR;
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177 rc = NGX_HTTP_NOT_FOUND;
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178
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179 } else if (err == NGX_EACCES) {
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180 level = NGX_LOG_ERR;
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181 rc = NGX_HTTP_FORBIDDEN;
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182
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183 } else {
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184 level = NGX_LOG_CRIT;
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185 rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
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186 }
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187
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188 ngx_log_error(level, r->connection->log, err,
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189 ngx_open_dir_n " \"%s\" failed", dname.data);
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190
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191 return rc;
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192 }
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193
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194 #if (NGX_SUPPRESS_WARN)
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195 /* MSVC thinks 'entries' may be used without having been initialized */
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196 ngx_memzero(&entries, sizeof(ngx_array_t));
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197 #endif
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198
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199 if (ngx_array_init(&entries, pool, 50, sizeof(ngx_http_autoindex_entry_t))
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200 == NGX_ERROR)
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201 {
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202 return ngx_http_autoindex_error(r, &dir, dname.data);
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203 }
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204
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205 fname.len = 0;
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206 #if (NGX_SUPPRESS_WARN)
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207 fname.data = NULL;
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208 #endif
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209
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210 for ( ;; ) {
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211 ngx_set_errno(0);
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212
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213 if (ngx_read_dir(&dir) == NGX_ERROR) {
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214 err = ngx_errno;
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215
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216 if (err == NGX_ENOMOREFILES) {
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217 rc = NGX_OK;
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218
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219 } else {
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220 ngx_log_error(NGX_LOG_CRIT, r->connection->log, err,
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221 ngx_read_dir_n " \"%s\" failed", dname.data);
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222 return ngx_http_autoindex_error(r, &dir, dname.data);
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223 }
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224
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225 break;
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226 }
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227
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228 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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229 "http autoindex file: \"%s\"", ngx_de_name(&dir));
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230
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231 len = ngx_de_namelen(&dir);
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232
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8
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233 if (len == 1 && ngx_de_name(&dir)[0] == '.') {
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234 continue;
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235 }
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236
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237 if (len == 2
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238 && ngx_de_name(&dir)[0] == '.'
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239 && ngx_de_name(&dir)[0] == '.')
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240 {
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241 continue;
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242 }
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243
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6
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244 if (!dir.valid_info) {
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245
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246 if (dname.len + 1 + len > fname.len) {
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247 fname.len = dname.len + 1 + len + 32;
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248
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249 if (!(fname.data = ngx_palloc(pool, fname.len))) {
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250 return ngx_http_autoindex_error(r, &dir, dname.data);
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251 }
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252
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253 last = ngx_cpystrn(fname.data, dname.data,
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254 dname.len + 1);
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255 *last++ = '/';
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256 }
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257
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258 ngx_cpystrn(last, ngx_de_name(&dir), len + 1);
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259
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260 if (ngx_de_info(fname.data, &dir) == NGX_FILE_ERROR) {
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261 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
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262 ngx_de_info_n " \"%s\" failed", fname.data);
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263 return ngx_http_autoindex_error(r, &dir, dname.data);
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264 }
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265 }
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266
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267 if (!(entry = ngx_array_push(&entries))) {
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268 return ngx_http_autoindex_error(r, &dir, dname.data);
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269 }
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270
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271 entry->name.len = len;
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10
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272 entry->escape = 2 * ngx_escape_uri(NULL, ngx_de_name(&dir), len,
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273 NGX_ESCAPE_HTML);
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6
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274
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10
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275 if (!(entry->name.data = ngx_palloc(pool, len + entry->escape + 1))) {
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6
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276 return ngx_http_autoindex_error(r, &dir, dname.data);
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277 }
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10
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278
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6
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279 ngx_cpystrn(entry->name.data, ngx_de_name(&dir), len + 1);
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280
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281 entry->dir = ngx_de_is_dir(&dir);
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282 entry->mtime = ngx_de_mtime(&dir);
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283 entry->size = ngx_de_size(&dir);
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284 }
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285
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286 if (ngx_close_dir(&dir) == NGX_ERROR) {
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287 ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
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288 ngx_close_dir_n " \"%s\" failed", dname.data);
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289 }
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290
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291 len = sizeof(title) - 1
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292 + r->uri.len
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293 + sizeof(header) - 1
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294 + r->uri.len
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295 + sizeof("</h1>") - 1
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296 + sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1
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297 + sizeof("</pre><hr>") - 1
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298 + sizeof(tail) - 1;
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299
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300 entry = entries.elts;
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301 for (i = 0; i < entries.nelts; i++) {
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302 len += sizeof("<a href=\"") - 1
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303 + 1 /* 1 is for "/" */
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10
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304 + entry[i].name.len + entry[i].escape
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6
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305 + sizeof("\">") - 1
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16
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306 + NGX_HTTP_AUTOINDEX_NAME_LEN + sizeof(">") - 2
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6
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307 + sizeof("</a>") - 1
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16
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308 + sizeof(" 28-Sep-1970 12:00 ") - 1
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22
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309 + 19
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6
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310 + 2;
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311 }
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312
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313 if (!(b = ngx_create_temp_buf(r->pool, len))) {
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314 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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315 }
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316
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317 if (entries.nelts > 1) {
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318 ngx_qsort(entry, (size_t) entries.nelts,
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319 sizeof(ngx_http_autoindex_entry_t),
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320 ngx_http_autoindex_cmp_entries);
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321 }
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322
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323 b->last = ngx_cpymem(b->last, title, sizeof(title) - 1);
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324 b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len);
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325 b->last = ngx_cpymem(b->last, header, sizeof(header) - 1);
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326 b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len);
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327 b->last = ngx_cpymem(b->last, "</h1>", sizeof("</h1>") - 1);
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328
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329 b->last = ngx_cpymem(b->last, "<hr><pre><a href=\"../\">../</a>" CRLF,
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330 sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1);
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331
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332 for (i = 0; i < entries.nelts; i++) {
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333 b->last = ngx_cpymem(b->last, "<a href=\"", sizeof("<a href=\"") - 1);
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10
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334
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335 if (entry[i].escape) {
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336 ngx_escape_uri(b->last, entry[i].name.data, entry[i].name.len,
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337 NGX_ESCAPE_HTML);
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338
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339 b->last += entry[i].name.len + entry[i].escape;
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340
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341 } else {
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342 b->last = ngx_cpymem(b->last, entry[i].name.data,
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343 entry[i].name.len);
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344 }
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6
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345
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346 if (entry[i].dir) {
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347 *b->last++ = '/';
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348 }
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349
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350 *b->last++ = '"';
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351 *b->last++ = '>';
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352
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353 b->last = ngx_cpystrn(b->last, entry[i].name.data,
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354 NGX_HTTP_AUTOINDEX_NAME_LEN + 1);
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355
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356 len = entry[i].name.len;
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357
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358 if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) {
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359 b->last = ngx_cpymem(b->last - 3, "..></a>",
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360 sizeof("..></a>") - 1);
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361
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362 } else {
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363 if (entry[i].dir && NGX_HTTP_AUTOINDEX_NAME_LEN - len > 0) {
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364 *b->last++ = '/';
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365 len++;
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366 }
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367
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368 b->last = ngx_cpymem(b->last, "</a>", sizeof("</a>") - 1);
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369 ngx_memset(b->last, ' ', NGX_HTTP_AUTOINDEX_NAME_LEN - len);
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370 b->last += NGX_HTTP_AUTOINDEX_NAME_LEN - len;
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371 }
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372
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373 *b->last++ = ' ';
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374
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375 ngx_gmtime(entry[i].mtime, &tm);
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376
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377 b->last = ngx_sprintf(b->last, "%02d-%s-%d %02d:%02d ",
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378 tm.ngx_tm_mday,
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379 months[tm.ngx_tm_mon - 1],
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380 tm.ngx_tm_year,
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381 tm.ngx_tm_hour,
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382 tm.ngx_tm_min);
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383
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384 if (entry[i].dir) {
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22
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385 b->last = ngx_cpymem(b->last, " -",
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386 sizeof(" -") - 1);
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6
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387
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388 } else {
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22
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389 b->last = ngx_sprintf(b->last, "%19O", entry[i].size);
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6
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390 }
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391
|
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392 *b->last++ = CR;
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393 *b->last++ = LF;
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|
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394 }
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395
|
|
8
|
396 /* TODO: free temporary pool */
|
|
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397
|
|
6
|
398 b->last = ngx_cpymem(b->last, "</pre><hr>", sizeof("</pre><hr>") - 1);
|
|
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399
|
|
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400 b->last = ngx_cpymem(b->last, tail, sizeof(tail) - 1);
|
|
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401
|
|
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402 r->headers_out.status = NGX_HTTP_OK;
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|
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403 r->headers_out.content_length_n = b->last - b->pos;
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|
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404
|
|
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405 r->headers_out.content_type = ngx_list_push(&r->headers_out.headers);
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|
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406 if (r->headers_out.content_type == NULL) {
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407 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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|
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408 }
|
|
|
409
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|
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410 r->headers_out.content_type->key.len = 0;
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411 r->headers_out.content_type->key.data = NULL;
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|
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412 r->headers_out.content_type->value.len = sizeof("text/html") - 1;
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|
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413 r->headers_out.content_type->value.data = (u_char *) "text/html";
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|
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414
|
|
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415 rc = ngx_http_send_header(r);
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|
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416
|
|
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417 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
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418 return rc;
|
|
|
419 }
|
|
|
420
|
|
|
421 if (!r->main) {
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|
|
422 b->last_buf = 1;
|
|
|
423 }
|
|
|
424
|
|
|
425 out.buf = b;
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|
|
426 out.next = NULL;
|
|
|
427
|
|
|
428 return ngx_http_output_filter(r, &out);
|
|
|
429 }
|
|
|
430
|
|
|
431
|
|
|
432 static int ngx_http_autoindex_cmp_entries(const void *one, const void *two)
|
|
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433 {
|
|
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434 ngx_http_autoindex_entry_t *first = (ngx_http_autoindex_entry_t *) one;
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|
|
435 ngx_http_autoindex_entry_t *second = (ngx_http_autoindex_entry_t *) two;
|
|
|
436
|
|
|
437 if (first->dir && !second->dir) {
|
|
|
438 /* move the directories to the start */
|
|
|
439 return -1;
|
|
|
440 }
|
|
|
441
|
|
|
442 if (!first->dir && second->dir) {
|
|
|
443 /* move the directories to the start */
|
|
|
444 return 1;
|
|
|
445 }
|
|
|
446
|
|
|
447 return (int) ngx_strcmp(first->name.data, second->name.data);
|
|
|
448 }
|
|
|
449
|
|
|
450
|
|
|
451 #if 0
|
|
|
452
|
|
|
453 static ngx_buf_t *ngx_http_autoindex_alloc(ngx_http_autoindex_ctx_t *ctx,
|
|
|
454 size_t size)
|
|
|
455 {
|
|
|
456 ngx_chain_t *cl;
|
|
|
457
|
|
|
458 if (ctx->buf) {
|
|
|
459
|
|
|
460 if ((size_t) (ctx->buf->end - ctx->buf->last) >= size) {
|
|
|
461 return ctx->buf;
|
|
|
462 }
|
|
|
463
|
|
|
464 ctx->size += ctx->buf->last - ctx->buf->pos;
|
|
|
465 }
|
|
|
466
|
|
|
467 if (!(ctx->buf = ngx_create_temp_buf(ctx->pool, ctx->alloc_size))) {
|
|
|
468 return NULL;
|
|
|
469 }
|
|
|
470
|
|
|
471 if (!(cl = ngx_alloc_chain_link(ctx->pool))) {
|
|
|
472 return NULL;
|
|
|
473 }
|
|
|
474
|
|
|
475 cl->buf = ctx->buf;
|
|
|
476 cl->next = NULL;
|
|
|
477
|
|
|
478 *ctx->last_out = cl;
|
|
|
479 ctx->last_out = &cl->next;
|
|
|
480
|
|
|
481 return ctx->buf;
|
|
|
482 }
|
|
|
483
|
|
|
484 #endif
|
|
|
485
|
|
|
486
|
|
|
487 static ngx_int_t ngx_http_autoindex_error(ngx_http_request_t *r, ngx_dir_t *dir,
|
|
|
488 u_char *name)
|
|
|
489 {
|
|
|
490 if (ngx_close_dir(dir) == NGX_ERROR) {
|
|
|
491 ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
|
|
|
492 ngx_close_dir_n " \"%s\" failed", name);
|
|
|
493 }
|
|
|
494
|
|
|
495 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
496 }
|
|
|
497
|
|
|
498
|
|
|
499 static ngx_int_t ngx_http_autoindex_init(ngx_cycle_t *cycle)
|
|
|
500 {
|
|
|
501 ngx_http_handler_pt *h;
|
|
|
502 ngx_http_core_main_conf_t *cmcf;
|
|
|
503
|
|
|
504 cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module);
|
|
|
505
|
|
|
506 h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers);
|
|
|
507 if (h == NULL) {
|
|
|
508 return NGX_ERROR;
|
|
|
509 }
|
|
|
510
|
|
|
511 *h = ngx_http_autoindex_handler;
|
|
|
512
|
|
|
513 return NGX_OK;
|
|
|
514 }
|
|
|
515
|
|
|
516
|
|
|
517 static void *ngx_http_autoindex_create_loc_conf(ngx_conf_t *cf)
|
|
|
518 {
|
|
|
519 ngx_http_autoindex_loc_conf_t *conf;
|
|
|
520
|
|
|
521 conf = ngx_palloc(cf->pool, sizeof(ngx_http_autoindex_loc_conf_t));
|
|
|
522 if (conf == NULL) {
|
|
|
523 return NGX_CONF_ERROR;
|
|
|
524 }
|
|
|
525
|
|
|
526 conf->enable = NGX_CONF_UNSET;
|
|
|
527
|
|
|
528 return conf;
|
|
|
529 }
|
|
|
530
|
|
|
531
|
|
|
532 static char *ngx_http_autoindex_merge_loc_conf(ngx_conf_t *cf,
|
|
|
533 void *parent, void *child)
|
|
|
534 {
|
|
|
535 ngx_http_autoindex_loc_conf_t *prev = parent;
|
|
|
536 ngx_http_autoindex_loc_conf_t *conf = child;
|
|
|
537
|
|
|
538 ngx_conf_merge_value(conf->enable, prev->enable, 0);
|
|
|
539
|
|
|
540 return NGX_CONF_OK;
|
|
|
541 }
|
