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50
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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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27 ngx_uint_t escape;
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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,
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44 ngx_dir_t *dir, 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 process */
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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
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107 ngx_http_autoindex_handler(ngx_http_request_t *r)
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108 {
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109 u_char *last;
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110 size_t len;
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111 ngx_tm_t tm;
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112 ngx_int_t rc;
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113 ngx_uint_t i, level;
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114 ngx_err_t err;
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115 ngx_buf_t *b;
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116 ngx_chain_t out;
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117 ngx_str_t dname, fname;
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118 ngx_dir_t dir;
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119 ngx_pool_t *pool;
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120 ngx_array_t entries;
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121 ngx_http_core_loc_conf_t *clcf;
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122 ngx_http_autoindex_entry_t *entry;
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123 ngx_http_autoindex_loc_conf_t *alcf;
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124
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125 static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
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126 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
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127
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128 if (r->uri.data[r->uri.len - 1] != '/') {
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129 return NGX_DECLINED;
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130 }
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131
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132 /* TODO: Win32 */
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133 if (r->zero_in_uri) {
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134 return NGX_DECLINED;
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135 }
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136
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137 alcf = ngx_http_get_module_loc_conf(r, ngx_http_autoindex_module);
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138
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139 if (!alcf->enable) {
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140 return NGX_DECLINED;
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141 }
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142
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143 /* TODO: pool should be temporary pool */
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144 pool = r->pool;
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145
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146 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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147
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148 if (clcf->alias) {
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149 dname.data = ngx_palloc(pool, clcf->root.len + r->uri.len
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150 + NGX_DIR_MASK_LEN + 1
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151 - clcf->name.len);
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152 if (dname.data == NULL) {
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153 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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154 }
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155
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156 last = ngx_cpymem(dname.data, clcf->root.data, clcf->root.len);
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157 last = ngx_cpystrn(last, r->uri.data + clcf->name.len,
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158 r->uri.len - clcf->name.len + 1);
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159
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160 } else {
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161 dname.data = ngx_palloc(pool, clcf->root.len + r->uri.len
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162 + NGX_DIR_MASK_LEN);
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163 if (dname.data == NULL) {
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164 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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165 }
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166
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167 last = ngx_cpymem(dname.data, clcf->root.data, clcf->root.len);
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168 last = ngx_cpystrn(last, r->uri.data, r->uri.len);
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169 }
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170
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171 dname.len = last - dname.data;
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172
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173 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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174 "http autoindex: \"%s\"", dname.data);
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175
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176
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177 if (ngx_open_dir(&dname, &dir) == NGX_ERROR) {
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178 err = ngx_errno;
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179
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180 if (err == NGX_ENOENT || err == NGX_ENOTDIR) {
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181 level = NGX_LOG_ERR;
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182 rc = NGX_HTTP_NOT_FOUND;
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183
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184 } else if (err == NGX_EACCES) {
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185 level = NGX_LOG_ERR;
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186 rc = NGX_HTTP_FORBIDDEN;
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187
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188 } else {
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189 level = NGX_LOG_CRIT;
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190 rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
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191 }
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192
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193 ngx_log_error(level, r->connection->log, err,
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194 ngx_open_dir_n " \"%s\" failed", dname.data);
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195
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196 return rc;
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197 }
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198
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199 #if (NGX_SUPPRESS_WARN)
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200 /* MSVC thinks 'entries' may be used without having been initialized */
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201 ngx_memzero(&entries, sizeof(ngx_array_t));
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202 #endif
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203
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204 if (ngx_array_init(&entries, pool, 50, sizeof(ngx_http_autoindex_entry_t))
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205 == NGX_ERROR)
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206 {
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207 return ngx_http_autoindex_error(r, &dir, dname.data);
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208 }
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209
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210 fname.len = 0;
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211 #if (NGX_SUPPRESS_WARN)
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212 fname.data = NULL;
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213 #endif
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214
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215 for ( ;; ) {
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216 ngx_set_errno(0);
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217
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218 if (ngx_read_dir(&dir) == NGX_ERROR) {
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219 err = ngx_errno;
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220
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221 if (err != NGX_ENOMOREFILES) {
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222 ngx_log_error(NGX_LOG_CRIT, r->connection->log, err,
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223 ngx_read_dir_n " \"%s\" failed", dname.data);
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224 return ngx_http_autoindex_error(r, &dir, dname.data);
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225 }
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226
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227 break;
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228 }
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229
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230 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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231 "http autoindex file: \"%s\"", ngx_de_name(&dir));
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232
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233 len = ngx_de_namelen(&dir);
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234
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235 if (len == 1 && ngx_de_name(&dir)[0] == '.') {
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236 continue;
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237 }
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238
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239 if (len == 2
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240 && ngx_de_name(&dir)[0] == '.'
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241 && ngx_de_name(&dir)[1] == '.')
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242 {
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243 continue;
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244 }
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245
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246 if (!dir.valid_info) {
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247
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248 if (dname.len + 1 + len > fname.len) {
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249 fname.len = dname.len + 1 + len + 32;
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250
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251 fname.data = ngx_palloc(pool, fname.len);
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252 if (fname.data == NULL) {
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253 return ngx_http_autoindex_error(r, &dir, dname.data);
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254 }
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255
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256 last = ngx_cpystrn(fname.data, dname.data,
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257 dname.len + 1);
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258 *last++ = '/';
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259 }
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260
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261 ngx_cpystrn(last, ngx_de_name(&dir), len + 1);
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262
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263 if (ngx_de_info(fname.data, &dir) == NGX_FILE_ERROR) {
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264 err = ngx_errno;
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265
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266 if (err != NGX_ENOENT) {
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267 ngx_log_error(NGX_LOG_CRIT, r->connection->log, err,
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268 ngx_de_info_n " \"%s\" failed", fname.data);
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269 return ngx_http_autoindex_error(r, &dir, dname.data);
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270 }
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271
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272 if (ngx_de_link_info(fname.data, &dir) == NGX_FILE_ERROR) {
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273 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
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274 ngx_de_link_info_n " \"%s\" failed",
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275 fname.data);
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276 return ngx_http_autoindex_error(r, &dir, dname.data);
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277 }
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278 }
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279 }
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280
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281 entry = ngx_array_push(&entries);
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282 if (entry == NULL) {
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283 return ngx_http_autoindex_error(r, &dir, dname.data);
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284 }
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285
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286 entry->name.len = len;
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287 entry->escape = 2 * ngx_escape_uri(NULL, ngx_de_name(&dir), len,
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288 NGX_ESCAPE_HTML);
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289
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290 entry->name.data = ngx_palloc(pool, len + entry->escape + 1);
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291 if (entry->name.data == NULL) {
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292 return ngx_http_autoindex_error(r, &dir, dname.data);
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293 }
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294
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295 ngx_cpystrn(entry->name.data, ngx_de_name(&dir), len + 1);
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296
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297 entry->dir = ngx_de_is_dir(&dir);
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298 entry->mtime = ngx_de_mtime(&dir);
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299 entry->size = ngx_de_size(&dir);
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300 }
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301
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302 if (ngx_close_dir(&dir) == NGX_ERROR) {
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303 ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
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304 ngx_close_dir_n " \"%s\" failed", dname.data);
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305 }
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306
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307 len = sizeof(title) - 1
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308 + r->uri.len
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309 + sizeof(header) - 1
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310 + r->uri.len
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311 + sizeof("</h1>") - 1
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312 + sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1
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313 + sizeof("</pre><hr>") - 1
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314 + sizeof(tail) - 1;
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315
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316 entry = entries.elts;
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317 for (i = 0; i < entries.nelts; i++) {
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318 len += sizeof("<a href=\"") - 1
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319 + 1 /* 1 is for "/" */
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320 + entry[i].name.len + entry[i].escape
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321 + sizeof("\">") - 1
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322 + NGX_HTTP_AUTOINDEX_NAME_LEN + sizeof(">") - 2
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323 + sizeof("</a>") - 1
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324 + sizeof(" 28-Sep-1970 12:00 ") - 1
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325 + 19
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326 + 2;
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327 }
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328
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329 b = ngx_create_temp_buf(r->pool, len);
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330 if (b == NULL) {
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331 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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332 }
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333
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334 if (entries.nelts > 1) {
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335 ngx_qsort(entry, (size_t) entries.nelts,
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336 sizeof(ngx_http_autoindex_entry_t),
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337 ngx_http_autoindex_cmp_entries);
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338 }
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339
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340 b->last = ngx_cpymem(b->last, title, sizeof(title) - 1);
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341 b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len);
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342 b->last = ngx_cpymem(b->last, header, sizeof(header) - 1);
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343 b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len);
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344 b->last = ngx_cpymem(b->last, "</h1>", sizeof("</h1>") - 1);
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345
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346 b->last = ngx_cpymem(b->last, "<hr><pre><a href=\"../\">../</a>" CRLF,
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347 sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1);
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348
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349 for (i = 0; i < entries.nelts; i++) {
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350 b->last = ngx_cpymem(b->last, "<a href=\"", sizeof("<a href=\"") - 1);
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351
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352 if (entry[i].escape) {
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353 ngx_escape_uri(b->last, entry[i].name.data, entry[i].name.len,
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354 NGX_ESCAPE_HTML);
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355
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356 b->last += entry[i].name.len + entry[i].escape;
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357
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358 } else {
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359 b->last = ngx_cpymem(b->last, entry[i].name.data,
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360 entry[i].name.len);
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361 }
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362
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363 if (entry[i].dir) {
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364 *b->last++ = '/';
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365 }
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366
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367 *b->last++ = '"';
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368 *b->last++ = '>';
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369
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370 b->last = ngx_cpystrn(b->last, entry[i].name.data,
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371 NGX_HTTP_AUTOINDEX_NAME_LEN + 1);
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372
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373 len = entry[i].name.len;
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374
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375 if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) {
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376 b->last = ngx_cpymem(b->last - 3, "..></a>",
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377 sizeof("..></a>") - 1);
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378
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379 } else {
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380 if (entry[i].dir && NGX_HTTP_AUTOINDEX_NAME_LEN - len > 0) {
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381 *b->last++ = '/';
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382 len++;
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383 }
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384
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385 b->last = ngx_cpymem(b->last, "</a>", sizeof("</a>") - 1);
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386 ngx_memset(b->last, ' ', NGX_HTTP_AUTOINDEX_NAME_LEN - len);
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387 b->last += NGX_HTTP_AUTOINDEX_NAME_LEN - len;
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388 }
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389
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390 *b->last++ = ' ';
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391
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392 ngx_gmtime(entry[i].mtime, &tm);
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393
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394 b->last = ngx_sprintf(b->last, "%02d-%s-%d %02d:%02d ",
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|
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395 tm.ngx_tm_mday,
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396 months[tm.ngx_tm_mon - 1],
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397 tm.ngx_tm_year,
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398 tm.ngx_tm_hour,
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399 tm.ngx_tm_min);
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400
|
|
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401 if (entry[i].dir) {
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|
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402 b->last = ngx_cpymem(b->last, " -",
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403 sizeof(" -") - 1);
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404
|
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405 } else {
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406 b->last = ngx_sprintf(b->last, "%19O", entry[i].size);
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|
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407 }
|
|
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408
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|
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409 *b->last++ = CR;
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|
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410 *b->last++ = LF;
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|
|
411 }
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|
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412
|
|
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413 /* TODO: free temporary pool */
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414
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|
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415 b->last = ngx_cpymem(b->last, "</pre><hr>", sizeof("</pre><hr>") - 1);
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416
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|
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417 b->last = ngx_cpymem(b->last, tail, sizeof(tail) - 1);
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418
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|
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419 r->headers_out.status = NGX_HTTP_OK;
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420 r->headers_out.content_length_n = b->last - b->pos;
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421
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422 r->headers_out.content_type = ngx_list_push(&r->headers_out.headers);
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423 if (r->headers_out.content_type == NULL) {
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424 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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|
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425 }
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|
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426
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|
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427 r->headers_out.content_type->key.len = 0;
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428 r->headers_out.content_type->key.data = NULL;
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429 r->headers_out.content_type->value.len = sizeof("text/html") - 1;
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430 r->headers_out.content_type->value.data = (u_char *) "text/html";
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431
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432 rc = ngx_http_send_header(r);
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433
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|
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434 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
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435 return rc;
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|
|
436 }
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|
|
437
|
|
|
438 if (!r->main) {
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|
|
439 b->last_buf = 1;
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|
|
440 }
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|
|
441
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|
|
442 out.buf = b;
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|
|
443 out.next = NULL;
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|
|
444
|
|
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445 return ngx_http_output_filter(r, &out);
|
|
|
446 }
|
|
|
447
|
|
|
448
|
|
|
449 static int
|
|
|
450 ngx_http_autoindex_cmp_entries(const void *one, const void *two)
|
|
|
451 {
|
|
|
452 ngx_http_autoindex_entry_t *first = (ngx_http_autoindex_entry_t *) one;
|
|
|
453 ngx_http_autoindex_entry_t *second = (ngx_http_autoindex_entry_t *) two;
|
|
|
454
|
|
|
455 if (first->dir && !second->dir) {
|
|
|
456 /* move the directories to the start */
|
|
|
457 return -1;
|
|
|
458 }
|
|
|
459
|
|
|
460 if (!first->dir && second->dir) {
|
|
|
461 /* move the directories to the start */
|
|
|
462 return 1;
|
|
|
463 }
|
|
|
464
|
|
|
465 return (int) ngx_strcmp(first->name.data, second->name.data);
|
|
|
466 }
|
|
|
467
|
|
|
468
|
|
|
469 #if 0
|
|
|
470
|
|
|
471 static ngx_buf_t *
|
|
|
472 ngx_http_autoindex_alloc(ngx_http_autoindex_ctx_t *ctx, size_t size)
|
|
|
473 {
|
|
|
474 ngx_chain_t *cl;
|
|
|
475
|
|
|
476 if (ctx->buf) {
|
|
|
477
|
|
|
478 if ((size_t) (ctx->buf->end - ctx->buf->last) >= size) {
|
|
|
479 return ctx->buf;
|
|
|
480 }
|
|
|
481
|
|
|
482 ctx->size += ctx->buf->last - ctx->buf->pos;
|
|
|
483 }
|
|
|
484
|
|
|
485 ctx->buf = ngx_create_temp_buf(ctx->pool, ctx->alloc_size);
|
|
|
486 if (ctx->buf == NULL) {
|
|
|
487 return NULL;
|
|
|
488 }
|
|
|
489
|
|
|
490 cl = ngx_alloc_chain_link(ctx->pool);
|
|
|
491 if (cl == NULL) {
|
|
|
492 return NULL;
|
|
|
493 }
|
|
|
494
|
|
|
495 cl->buf = ctx->buf;
|
|
|
496 cl->next = NULL;
|
|
|
497
|
|
|
498 *ctx->last_out = cl;
|
|
|
499 ctx->last_out = &cl->next;
|
|
|
500
|
|
|
501 return ctx->buf;
|
|
|
502 }
|
|
|
503
|
|
|
504 #endif
|
|
|
505
|
|
|
506
|
|
|
507 static ngx_int_t
|
|
|
508 ngx_http_autoindex_error(ngx_http_request_t *r, ngx_dir_t *dir, u_char *name)
|
|
|
509 {
|
|
|
510 if (ngx_close_dir(dir) == NGX_ERROR) {
|
|
|
511 ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
|
|
|
512 ngx_close_dir_n " \"%s\" failed", name);
|
|
|
513 }
|
|
|
514
|
|
|
515 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
516 }
|
|
|
517
|
|
|
518
|
|
|
519 static ngx_int_t
|
|
|
520 ngx_http_autoindex_init(ngx_cycle_t *cycle)
|
|
|
521 {
|
|
|
522 ngx_http_handler_pt *h;
|
|
|
523 ngx_http_core_main_conf_t *cmcf;
|
|
|
524
|
|
|
525 cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module);
|
|
|
526
|
|
|
527 h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers);
|
|
|
528 if (h == NULL) {
|
|
|
529 return NGX_ERROR;
|
|
|
530 }
|
|
|
531
|
|
|
532 *h = ngx_http_autoindex_handler;
|
|
|
533
|
|
|
534 return NGX_OK;
|
|
|
535 }
|
|
|
536
|
|
|
537
|
|
|
538 static void *
|
|
|
539 ngx_http_autoindex_create_loc_conf(ngx_conf_t *cf)
|
|
|
540 {
|
|
|
541 ngx_http_autoindex_loc_conf_t *conf;
|
|
|
542
|
|
|
543 conf = ngx_palloc(cf->pool, sizeof(ngx_http_autoindex_loc_conf_t));
|
|
|
544 if (conf == NULL) {
|
|
|
545 return NGX_CONF_ERROR;
|
|
|
546 }
|
|
|
547
|
|
|
548 conf->enable = NGX_CONF_UNSET;
|
|
|
549
|
|
|
550 return conf;
|
|
|
551 }
|
|
|
552
|
|
|
553
|
|
|
554 static char *
|
|
|
555 ngx_http_autoindex_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
556 {
|
|
|
557 ngx_http_autoindex_loc_conf_t *prev = parent;
|
|
|
558 ngx_http_autoindex_loc_conf_t *conf = child;
|
|
|
559
|
|
|
560 ngx_conf_merge_value(conf->enable, prev->enable, 0);
|
|
|
561
|
|
|
562 return NGX_CONF_OK;
|
|
|
563 }
|
