1 | // |
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2 | // $Id: CookieJar.java 816 2009-06-26 18:49:10Z etienne_sf $ |
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3 | // |
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4 | // jupload - A file upload applet. |
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5 | // |
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6 | // Copyright 2007 The JUpload Team |
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7 | // |
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8 | // Created: 08.06.2007 |
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9 | // Creator: felfert |
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10 | // Last modified: $Date: 2009-06-26 15:49:10 -0300 (Sex, 26 Jun 2009) $ |
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11 | // |
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12 | // This program is free software; you can redistribute it and/or modify |
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13 | // it under the terms of the GNU General Public License as published by |
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14 | // the Free Software Foundation; either version 2 of the License, or |
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15 | // (at your option) any later version. |
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16 | // |
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17 | // This program is distributed in the hope that it will be useful, |
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18 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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19 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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20 | // GNU General Public License for more details. |
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21 | // |
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22 | // You should have received a copy of the GNU General Public License |
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23 | // along with this program; if not, write to the Free Software |
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24 | // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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25 | |
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26 | package wjhk.jupload2.upload.helper; |
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27 | |
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28 | import java.net.URL; |
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29 | import java.text.ParseException; |
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30 | import java.text.SimpleDateFormat; |
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31 | import java.util.HashMap; |
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32 | import java.util.StringTokenizer; |
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33 | import java.util.regex.Matcher; |
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34 | import java.util.regex.Pattern; |
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35 | |
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36 | import wjhk.jupload2.policies.UploadPolicy; |
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37 | |
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38 | /** |
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39 | * This class implements a container for multiple cookies in a single domain. |
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40 | * |
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41 | * @author felfert |
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42 | */ |
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43 | public class CookieJar { |
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44 | |
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45 | final static Pattern pNvPair = Pattern.compile( |
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46 | "^\\s*([^=\\s]+)(\\s*=\\s*(.+))*$", Pattern.CASE_INSENSITIVE); |
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47 | |
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48 | /** |
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49 | * The current upload policy, always useful. |
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50 | */ |
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51 | private UploadPolicy uploadPolicy = null; |
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52 | |
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53 | private HashMap<String, Cookie> jar = new HashMap<String, Cookie>(); |
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54 | |
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55 | private String domain = null; |
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56 | |
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57 | private static class Cookie implements Cloneable { |
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58 | |
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59 | String domain = null; |
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60 | |
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61 | String name = null; |
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62 | |
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63 | String value = null; |
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64 | |
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65 | String path = null; |
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66 | |
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67 | long max_age = 0; |
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68 | |
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69 | int version = 0; |
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70 | |
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71 | int secure = 0; |
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72 | |
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73 | Cookie() { |
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74 | // |
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75 | } |
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76 | |
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77 | /** |
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78 | * @throws CloneNotSupportedException |
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79 | * @see java.lang.Object#clone() |
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80 | */ |
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81 | @Override |
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82 | public Cookie clone() throws CloneNotSupportedException { |
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83 | Cookie ret = (Cookie) super.clone(); |
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84 | ret.domain = this.domain; |
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85 | ret.name = this.name; |
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86 | ret.value = this.value; |
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87 | ret.path = this.path; |
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88 | ret.max_age = this.max_age; |
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89 | ret.version = this.version; |
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90 | ret.secure = this.secure; |
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91 | return ret; |
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92 | } |
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93 | |
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94 | /** |
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95 | * Retrieves the hash value of this cookie. Cookies are hashed by name |
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96 | * and path. |
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97 | * |
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98 | * @return The hash value of this cookie. |
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99 | */ |
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100 | public String getKey() { |
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101 | String ret = this.name; |
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102 | if (null != this.path) |
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103 | ret += this.path; |
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104 | return ret; |
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105 | } |
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106 | |
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107 | /** |
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108 | * Returns a single client cookie header element |
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109 | * |
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110 | * @param path The path of the corresponding request URI |
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111 | * @param secure 1, if the current connection is secure (SSL), 0 |
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112 | * otherwise |
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113 | * @return The part of the cookie header or an empty string |
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114 | */ |
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115 | public String getHeader(String path, int secure) { |
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116 | StringBuffer sb = new StringBuffer(); |
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117 | if ((null == this.path || this.path.equals("/") || this.path |
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118 | .startsWith(path)) |
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119 | && (this.secure <= secure) |
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120 | && (this.max_age > System.currentTimeMillis())) { |
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121 | if (this.version > 0) { |
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122 | sb.append("$Version=").append(this.version).append("; "); |
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123 | sb.append(this.name).append("=").append(this.value).append( |
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124 | ";"); |
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125 | if (null != this.path) |
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126 | sb.append(" $Path=").append(this.path).append(";"); |
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127 | if (null != this.domain) |
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128 | sb.append(" $Domain=").append(this.domain).append(";"); |
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129 | } else { |
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130 | sb.append(this.name).append("=").append(this.value).append( |
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131 | ";"); |
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132 | } |
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133 | } |
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134 | return sb.toString(); |
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135 | } |
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136 | |
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137 | } |
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138 | |
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139 | /* |
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140 | * ************************************************************************** |
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141 | * *************************** Start of CookieJar code |
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142 | * *********************** |
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143 | * *************************************************** |
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144 | * ************************** |
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145 | */ |
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146 | |
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147 | /** |
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148 | * The creator for this class. |
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149 | * |
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150 | * @param uploadPolicy The current upload policy |
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151 | */ |
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152 | public CookieJar(UploadPolicy uploadPolicy) { |
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153 | this.uploadPolicy = uploadPolicy; |
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154 | } |
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155 | |
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156 | private String stripQuotes(String s) { |
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157 | if (s.startsWith("\"") && s.endsWith("\"")) |
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158 | return s.substring(1, s.length() - 1); |
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159 | return s; |
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160 | } |
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161 | |
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162 | private boolean domainMatch(String cd) { |
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163 | if (cd == null) { |
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164 | return false; |
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165 | } else { |
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166 | if (!cd.startsWith(".")) { |
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167 | int dot = cd.indexOf('.'); |
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168 | if (dot >= 0) |
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169 | cd = cd.substring(dot); |
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170 | |
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171 | } |
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172 | return cd.equals(this.domain); |
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173 | } |
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174 | } |
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175 | |
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176 | /** |
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177 | * Sets the domain for this cookie jar. If set, only cookies matching the |
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178 | * specified domain are handled. |
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179 | * |
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180 | * @param domain The domain of this instance |
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181 | */ |
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182 | public void setDomain(String domain) { |
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183 | if (!domain.startsWith(".")) { |
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184 | int dot = domain.indexOf('.'); |
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185 | if (dot >= 0) |
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186 | domain = domain.substring(dot); |
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187 | |
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188 | } |
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189 | this.domain = domain; |
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190 | } |
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191 | |
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192 | /** |
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193 | * Builds a RFC 2109 compliant client cookie header for the specified URL. |
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194 | * |
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195 | * @param url The URL for which the cookie header is to be used. |
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196 | * @return A client cookie header (including the "Cookie: " prefix) or null |
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197 | * if no cookies are to be set. |
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198 | */ |
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199 | public String buildCookieHeader(URL url) { |
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200 | String domain = url.getHost(); |
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201 | int dot = domain.indexOf('.'); |
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202 | if (dot >= 0) |
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203 | domain = domain.substring(dot); |
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204 | if (domain.equals(this.domain)) { |
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205 | String path = url.getPath(); |
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206 | int secure = url.getProtocol().equalsIgnoreCase("https") ? 1 : 0; |
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207 | StringBuffer sb = new StringBuffer(); |
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208 | for (String key : this.jar.keySet()) { |
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209 | Cookie c = this.jar.get(key); |
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210 | if (null != c) |
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211 | sb.append(c.getHeader(path, secure)); |
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212 | } |
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213 | if (sb.length() > 0) { |
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214 | sb.append("\r\n"); |
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215 | return "Cookie: " + sb.toString(); |
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216 | } |
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217 | } |
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218 | return null; |
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219 | } |
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220 | |
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221 | /** |
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222 | * Parses a "Set-Cookie" header and creates/updates/deletes cookies |
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223 | * according to the parsed values. Parsing is done according to the |
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224 | * specification in RFC 2109 |
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225 | * |
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226 | * @param s The plain value of the "Set-Cookie" HTTP header. e.g.: without |
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227 | * the "Set-Cookie: " prefix. |
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228 | */ |
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229 | public void parseCookieHeader(String s) { |
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230 | StringTokenizer t = new StringTokenizer(s, ";"); |
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231 | Cookie cookie = new Cookie(); |
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232 | while (t.hasMoreTokens()) { |
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233 | Matcher m = pNvPair.matcher(t.nextToken()); |
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234 | if (m.matches()) { |
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235 | String n = m.group(1); |
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236 | String v = (m.groupCount() > 2 && m.group(3) != null) ? m |
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237 | .group(3).trim() : ""; |
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238 | if (n.compareToIgnoreCase("version") == 0) { |
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239 | cookie.version = Integer.parseInt(v); |
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240 | continue; |
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241 | } |
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242 | if (n.compareToIgnoreCase("domain") == 0) { |
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243 | cookie.domain = v; |
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244 | continue; |
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245 | } |
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246 | if (n.compareToIgnoreCase("path") == 0) { |
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247 | cookie.path = v; |
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248 | continue; |
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249 | } |
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250 | if (n.compareToIgnoreCase("max-age") == 0) { |
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251 | cookie.max_age = Integer.parseInt(v); |
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252 | if (cookie.max_age < 0) |
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253 | cookie.max_age = 0; |
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254 | cookie.max_age *= 1000; |
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255 | cookie.max_age += System.currentTimeMillis(); |
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256 | continue; |
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257 | } |
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258 | if (n.compareToIgnoreCase("expires") == 0) { |
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259 | SimpleDateFormat df = new SimpleDateFormat( |
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260 | "EEE, dd-MMM-yy HH:mm:ss zzz"); |
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261 | try { |
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262 | cookie.max_age = System.currentTimeMillis() |
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263 | - df.parse(v).getTime(); |
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264 | if (cookie.max_age < 0) |
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265 | cookie.max_age = 0; |
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266 | } catch (ParseException e) { |
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267 | cookie.max_age = 0; |
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268 | } |
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269 | continue; |
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270 | } |
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271 | if (n.compareToIgnoreCase("comment") == 0) { |
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272 | // ignored |
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273 | continue; |
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274 | } |
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275 | if (n.compareToIgnoreCase("secure") == 0) { |
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276 | cookie.secure = 1; |
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277 | continue; |
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278 | } |
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279 | if (!n.startsWith("$")) { |
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280 | if (null != cookie.name) { |
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281 | if (cookie.version > 0) { |
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282 | // Strip possible quotes |
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283 | cookie.domain = stripQuotes(cookie.domain); |
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284 | cookie.path = stripQuotes(cookie.path); |
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285 | // cookie.comment = stripQuotes(cookie.comment); |
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286 | // cookie.name = stripQuotes(cookie.name); |
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287 | // cookie.value = stripQuotes(cookie.value); |
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288 | } |
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289 | if (domainMatch(cookie.domain)) { |
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290 | if (cookie.max_age > 0) { |
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291 | this.jar.put(cookie.getKey(), cookie); |
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292 | this.uploadPolicy.displayDebug( |
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293 | "[CookieJar] Adding cookie: " |
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294 | + cookie.getKey() + ": " |
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295 | + cookie, 50); |
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296 | |
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297 | } else { |
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298 | this.jar.put(cookie.getKey(), null); |
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299 | this.uploadPolicy.displayDebug( |
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300 | "[CookieJar] Ignoring cookie: " |
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301 | + cookie.getKey() + ": " |
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302 | + cookie, 50); |
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303 | } |
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304 | } |
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305 | try { |
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306 | cookie = cookie.clone(); |
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307 | } catch (CloneNotSupportedException e) { |
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308 | cookie = new Cookie(); |
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309 | } |
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310 | } |
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311 | cookie.name = n; |
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312 | cookie.value = v; |
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313 | } |
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314 | } |
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315 | } |
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316 | } |
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317 | } |
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