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1 <?php |
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2 /** |
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3 * Smarty plugin |
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4 * @package Smarty |
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5 * @subpackage plugins |
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6 */ |
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7 |
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8 |
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9 /** |
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10 * Smarty {fetch} plugin |
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11 * |
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12 * Type: function<br> |
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13 * Name: fetch<br> |
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14 * Purpose: fetch file, web or ftp data and display results |
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15 * @link http://smarty.php.net/manual/en/language.function.fetch.php {fetch} |
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16 * (Smarty online manual) |
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17 * @author Monte Ohrt <monte at ohrt dot com> |
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18 * @param array |
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19 * @param Smarty |
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20 * @return string|null if the assign parameter is passed, Smarty assigns the |
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21 * result to a template variable |
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22 */ |
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23 function smarty_function_fetch($params, &$smarty) |
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24 { |
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25 if (empty($params['file'])) { |
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26 $smarty->_trigger_fatal_error("[plugin] parameter 'file' cannot be empty"); |
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27 return; |
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28 } |
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29 |
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30 $content = ''; |
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31 if ($smarty->security && !preg_match('!^(http|ftp)://!i', $params['file'])) { |
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32 $_params = array('resource_type' => 'file', 'resource_name' => $params['file']); |
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33 require_once(SMARTY_CORE_DIR . 'core.is_secure.php'); |
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34 if(!smarty_core_is_secure($_params, $smarty)) { |
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35 $smarty->_trigger_fatal_error('[plugin] (secure mode) fetch \'' . $params['file'] . '\' is not allowed'); |
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36 return; |
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37 } |
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38 |
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39 // fetch the file |
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40 if($fp = @fopen($params['file'],'r')) { |
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41 while(!feof($fp)) { |
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42 $content .= fgets ($fp,4096); |
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43 } |
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44 fclose($fp); |
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45 } else { |
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46 $smarty->_trigger_fatal_error('[plugin] fetch cannot read file \'' . $params['file'] . '\''); |
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47 return; |
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48 } |
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49 } else { |
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50 // not a local file |
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51 if(preg_match('!^http://!i',$params['file'])) { |
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52 // http fetch |
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53 if($uri_parts = parse_url($params['file'])) { |
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54 // set defaults |
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55 $host = $server_name = $uri_parts['host']; |
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56 $timeout = 30; |
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57 $accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*"; |
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58 $agent = "Smarty Template Engine ".$smarty->_version; |
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59 $referer = ""; |
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60 $uri = !empty($uri_parts['path']) ? $uri_parts['path'] : '/'; |
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61 $uri .= !empty($uri_parts['query']) ? '?' . $uri_parts['query'] : ''; |
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62 $_is_proxy = false; |
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63 if(empty($uri_parts['port'])) { |
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64 $port = 80; |
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65 } else { |
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66 $port = $uri_parts['port']; |
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67 } |
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68 if(!empty($uri_parts['user'])) { |
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69 $user = $uri_parts['user']; |
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70 } |
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71 if(!empty($uri_parts['pass'])) { |
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72 $pass = $uri_parts['pass']; |
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73 } |
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74 // loop through parameters, setup headers |
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75 foreach($params as $param_key => $param_value) { |
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76 switch($param_key) { |
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77 case "file": |
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78 case "assign": |
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79 case "assign_headers": |
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80 break; |
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81 case "user": |
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82 if(!empty($param_value)) { |
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83 $user = $param_value; |
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84 } |
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85 break; |
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86 case "pass": |
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87 if(!empty($param_value)) { |
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88 $pass = $param_value; |
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89 } |
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90 break; |
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91 case "accept": |
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92 if(!empty($param_value)) { |
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93 $accept = $param_value; |
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94 } |
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95 break; |
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96 case "header": |
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97 if(!empty($param_value)) { |
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98 if(!preg_match('![\w\d-]+: .+!',$param_value)) { |
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99 $smarty->_trigger_fatal_error("[plugin] invalid header format '".$param_value."'"); |
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100 return; |
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101 } else { |
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102 $extra_headers[] = $param_value; |
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103 } |
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104 } |
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105 break; |
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106 case "proxy_host": |
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107 if(!empty($param_value)) { |
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108 $proxy_host = $param_value; |
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109 } |
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110 break; |
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111 case "proxy_port": |
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112 if(!preg_match('!\D!', $param_value)) { |
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113 $proxy_port = (int) $param_value; |
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114 } else { |
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115 $smarty->_trigger_fatal_error("[plugin] invalid value for attribute '".$param_key."'"); |
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116 return; |
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117 } |
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118 break; |
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119 case "agent": |
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120 if(!empty($param_value)) { |
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121 $agent = $param_value; |
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122 } |
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123 break; |
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124 case "referer": |
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125 if(!empty($param_value)) { |
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126 $referer = $param_value; |
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127 } |
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128 break; |
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129 case "timeout": |
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130 if(!preg_match('!\D!', $param_value)) { |
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131 $timeout = (int) $param_value; |
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132 } else { |
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133 $smarty->_trigger_fatal_error("[plugin] invalid value for attribute '".$param_key."'"); |
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134 return; |
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135 } |
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136 break; |
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137 default: |
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138 $smarty->_trigger_fatal_error("[plugin] unrecognized attribute '".$param_key."'"); |
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139 return; |
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140 } |
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141 } |
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142 if(!empty($proxy_host) && !empty($proxy_port)) { |
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143 $_is_proxy = true; |
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144 $fp = fsockopen($proxy_host,$proxy_port,$errno,$errstr,$timeout); |
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145 } else { |
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146 $fp = fsockopen($server_name,$port,$errno,$errstr,$timeout); |
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147 } |
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148 |
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149 if(!$fp) { |
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150 $smarty->_trigger_fatal_error("[plugin] unable to fetch: $errstr ($errno)"); |
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151 return; |
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152 } else { |
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153 if($_is_proxy) { |
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154 fputs($fp, 'GET ' . $params['file'] . " HTTP/1.0\r\n"); |
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155 } else { |
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156 fputs($fp, "GET $uri HTTP/1.0\r\n"); |
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157 } |
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158 if(!empty($host)) { |
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159 fputs($fp, "Host: $host\r\n"); |
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160 } |
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161 if(!empty($accept)) { |
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162 fputs($fp, "Accept: $accept\r\n"); |
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163 } |
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164 if(!empty($agent)) { |
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165 fputs($fp, "User-Agent: $agent\r\n"); |
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166 } |
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167 if(!empty($referer)) { |
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168 fputs($fp, "Referer: $referer\r\n"); |
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169 } |
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170 if(isset($extra_headers) && is_array($extra_headers)) { |
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171 foreach($extra_headers as $curr_header) { |
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172 fputs($fp, $curr_header."\r\n"); |
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173 } |
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174 } |
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175 if(!empty($user) && !empty($pass)) { |
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176 fputs($fp, "Authorization: BASIC ".base64_encode("$user:$pass")."\r\n"); |
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177 } |
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178 |
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179 fputs($fp, "\r\n"); |
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180 while(!feof($fp)) { |
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181 $content .= fgets($fp,4096); |
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182 } |
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183 fclose($fp); |
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184 $csplit = split("\r\n\r\n",$content,2); |
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185 |
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186 $content = $csplit[1]; |
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187 |
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188 if(!empty($params['assign_headers'])) { |
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189 $smarty->assign($params['assign_headers'],split("\r\n",$csplit[0])); |
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190 } |
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191 } |
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192 } else { |
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193 $smarty->_trigger_fatal_error("[plugin] unable to parse URL, check syntax"); |
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194 return; |
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195 } |
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196 } else { |
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197 // ftp fetch |
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198 if($fp = @fopen($params['file'],'r')) { |
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199 while(!feof($fp)) { |
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200 $content .= fgets ($fp,4096); |
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201 } |
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202 fclose($fp); |
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203 } else { |
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204 $smarty->_trigger_fatal_error('[plugin] fetch cannot read file \'' . $params['file'] .'\''); |
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205 return; |
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206 } |
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207 } |
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208 |
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209 } |
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210 |
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211 |
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212 if (!empty($params['assign'])) { |
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213 $smarty->assign($params['assign'],$content); |
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214 } else { |
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215 return $content; |
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216 } |
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217 } |
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218 |
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219 /* vim: set expandtab: */ |
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220 |
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221 ?> |