Coverage Report - org.owasp.dependencycheck.dependency.VulnerableSoftware
 
Classes in this File Line Coverage Branch Coverage Complexity
VulnerableSoftware
70%
70/99
79%
57/72
3.15
 
 1  
 /*
 2  
  * This file is part of dependency-check-core.
 3  
  *
 4  
  * Licensed under the Apache License, Version 2.0 (the "License");
 5  
  * you may not use this file except in compliance with the License.
 6  
  * You may obtain a copy of the License at
 7  
  *
 8  
  *     http://www.apache.org/licenses/LICENSE-2.0
 9  
  *
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS,
 12  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13  
  * See the License for the specific language governing permissions and
 14  
  * limitations under the License.
 15  
  *
 16  
  * Copyright (c) 2012 Jeremy Long. All Rights Reserved.
 17  
  */
 18  
 package org.owasp.dependencycheck.dependency;
 19  
 
 20  
 import java.io.Serializable;
 21  
 import java.io.UnsupportedEncodingException;
 22  
 import java.net.URLDecoder;
 23  
 import org.owasp.dependencycheck.data.cpe.IndexEntry;
 24  
 import org.slf4j.Logger;
 25  
 import org.slf4j.LoggerFactory;
 26  
 
 27  
 /**
 28  
  * A record containing information about vulnerable software. This is referenced from a vulnerability.
 29  
  *
 30  
  * @author Jeremy Long
 31  
  */
 32  24636
 public class VulnerableSoftware extends IndexEntry implements Serializable, Comparable<VulnerableSoftware> {
 33  
 
 34  
     /**
 35  
      * The logger.
 36  
      */
 37  2
     private static final Logger LOGGER = LoggerFactory.getLogger(VulnerableSoftware.class);
 38  
     /**
 39  
      * The serial version UID.
 40  
      */
 41  
     private static final long serialVersionUID = 307319490326651052L;
 42  
 
 43  
     /**
 44  
      * Parse a CPE entry from the cpe string representation.
 45  
      *
 46  
      * @param cpe a cpe entry (e.g. cpe:/a:vendor:software:version)
 47  
      */
 48  
     public void setCpe(String cpe) {
 49  
         try {
 50  2164
             parseName(cpe);
 51  0
         } catch (UnsupportedEncodingException ex) {
 52  0
             LOGGER.warn("Character encoding is unsupported for CPE '{}'.", cpe);
 53  0
             LOGGER.debug("", ex);
 54  0
             setName(cpe);
 55  2164
         }
 56  2164
     }
 57  
 
 58  
     /**
 59  
      * <p>
 60  
      * Parses a name attribute value, from the cpe.xml, into its corresponding parts: vendor, product, version, update.</p>
 61  
      * <p>
 62  
      * Example:</p>
 63  
      * <code>&nbsp;&nbsp;&nbsp;cpe:/a:apache:struts:1.1:rc2</code>
 64  
      *
 65  
      * <p>
 66  
      * Results in:</p> <ul> <li>Vendor: apache</li> <li>Product: struts</li>
 67  
      * <li>Version: 1.1</li> <li>Revision: rc2</li> </ul>
 68  
      *
 69  
      * @param cpeName the cpe name
 70  
      * @throws UnsupportedEncodingException should never be thrown...
 71  
      */
 72  
     @Override
 73  
     public void parseName(String cpeName) throws UnsupportedEncodingException {
 74  3198
         this.name = cpeName;
 75  3198
         if (cpeName != null && cpeName.length() > 7) {
 76  3188
             final String[] data = cpeName.substring(7).split(":");
 77  3188
             if (data.length >= 1) {
 78  3188
                 this.setVendor(urlDecode(data[0]));
 79  
             }
 80  3188
             if (data.length >= 2) {
 81  3186
                 this.setProduct(urlDecode(data[1]));
 82  
             }
 83  3188
             if (data.length >= 3) {
 84  3186
                 version = urlDecode(data[2]);
 85  
             }
 86  3188
             if (data.length >= 4) {
 87  464
                 update = urlDecode(data[3]);
 88  
             }
 89  3188
             if (data.length >= 5) {
 90  0
                 edition = urlDecode(data[4]);
 91  
             }
 92  
         }
 93  3198
     }
 94  
     /**
 95  
      * If present, indicates that previous version are vulnerable.
 96  
      */
 97  
     private String previousVersion;
 98  
 
 99  
     /**
 100  
      * Indicates if previous versions of this software are vulnerable.
 101  
      *
 102  
      * @return if previous versions of this software are vulnerable
 103  
      */
 104  
     public boolean hasPreviousVersion() {
 105  0
         return previousVersion != null;
 106  
     }
 107  
 
 108  
     /**
 109  
      * Get the value of previousVersion.
 110  
      *
 111  
      * @return the value of previousVersion
 112  
      */
 113  
     public String getPreviousVersion() {
 114  0
         return previousVersion;
 115  
     }
 116  
 
 117  
     /**
 118  
      * Set the value of previousVersion.
 119  
      *
 120  
      * @param previousVersion new value of previousVersion
 121  
      */
 122  
     public void setPreviousVersion(String previousVersion) {
 123  28
         this.previousVersion = previousVersion;
 124  28
     }
 125  
 
 126  
     /**
 127  
      * Standard equals implementation to compare this VulnerableSoftware to another object.
 128  
      *
 129  
      * @param obj the object to compare
 130  
      * @return whether or not the objects are equal
 131  
      */
 132  
     @Override
 133  
     public boolean equals(Object obj) {
 134  8
         if (obj == null) {
 135  0
             return false;
 136  
         }
 137  8
         if (getClass() != obj.getClass()) {
 138  0
             return false;
 139  
         }
 140  8
         final VulnerableSoftware other = (VulnerableSoftware) obj;
 141  8
         if ((this.name == null) ? (other.getName() != null) : !this.name.equals(other.getName())) {
 142  2
             return false;
 143  
         }
 144  6
         return true;
 145  
     }
 146  
 
 147  
     /**
 148  
      * Standard implementation of hashCode.
 149  
      *
 150  
      * @return the hashCode for the object
 151  
      */
 152  
     @Override
 153  
     public int hashCode() {
 154  220
         int hash = 7;
 155  220
         hash = 83 * hash + (this.name != null ? this.name.hashCode() : 0);
 156  220
         return hash;
 157  
     }
 158  
 
 159  
     /**
 160  
      * Standard toString() implementation display the name and whether or not previous versions are also affected.
 161  
      *
 162  
      * @return a string representation of the object
 163  
      */
 164  
     @Override
 165  
     public String toString() {
 166  0
         return "VulnerableSoftware{" + name + "[" + previousVersion + "]}";
 167  
     }
 168  
 
 169  
     /**
 170  
      * Implementation of the comparable interface.
 171  
      *
 172  
      * @param vs the VulnerableSoftware to compare
 173  
      * @return an integer indicating the ordering of the two objects
 174  
      */
 175  
     @Override
 176  
     public int compareTo(VulnerableSoftware vs) {
 177  21472
         int result = 0;
 178  21472
         final String[] left = this.name.split(":");
 179  21472
         final String[] right = vs.getName().split(":");
 180  21472
         final int max = (left.length <= right.length) ? left.length : right.length;
 181  21472
         if (max > 0) {
 182  129238
             for (int i = 0; result == 0 && i < max; i++) {
 183  107766
                 final String[] subLeft = left[i].split("(\\.|-)");
 184  107766
                 final String[] subRight = right[i].split("(\\.|-)");
 185  107766
                 final int subMax = (subLeft.length <= subRight.length) ? subLeft.length : subRight.length;
 186  107766
                 if (subMax > 0) {
 187  246638
                     for (int x = 0; result == 0 && x < subMax; x++) {
 188  138890
                         if (isPositiveInteger(subLeft[x]) && isPositiveInteger(subRight[x])) {
 189  
                             try {
 190  51138
                                 result = Long.valueOf(subLeft[x]).compareTo(Long.valueOf(subRight[x]));
 191  0
                             } catch (NumberFormatException ex) {
 192  
                                 //ignore the exception - they obviously aren't numbers
 193  0
                                 if (!subLeft[x].equalsIgnoreCase(subRight[x])) {
 194  0
                                     result = subLeft[x].compareToIgnoreCase(subRight[x]);
 195  
                                 }
 196  51138
                             }
 197  
                         } else {
 198  87752
                             result = subLeft[x].compareToIgnoreCase(subRight[x]);
 199  
                         }
 200  
                     }
 201  107748
                     if (result == 0) {
 202  86938
                         if (subLeft.length > subRight.length) {
 203  312
                             result = 2;
 204  
                         }
 205  86938
                         if (subRight.length > subLeft.length) {
 206  106
                             result = -2;
 207  
                         }
 208  
                     }
 209  
                 } else {
 210  18
                     result = left[i].compareToIgnoreCase(right[i]);
 211  
                 }
 212  
             }
 213  21472
             if (result == 0) {
 214  232
                 if (left.length > right.length) {
 215  136
                     result = 2;
 216  
                 }
 217  232
                 if (right.length > left.length) {
 218  20
                     result = -2;
 219  
                 }
 220  
             }
 221  
         } else {
 222  0
             result = this.getName().compareToIgnoreCase(vs.getName());
 223  
         }
 224  21472
         return result;
 225  
     }
 226  
 
 227  
     /**
 228  
      * Determines if the string passed in is a positive integer.
 229  
      *
 230  
      * @param str the string to test
 231  
      * @return true if the string only contains 0-9, otherwise false.
 232  
      */
 233  
     private static boolean isPositiveInteger(final String str) {
 234  190200
         if (str == null || str.isEmpty()) {
 235  28
             return false;
 236  
         }
 237  309718
         for (int i = 0; i < str.length(); i++) {
 238  207270
             final char c = str.charAt(i);
 239  207270
             if (c < '0' || c > '9') {
 240  87724
                 return false;
 241  
             }
 242  
         }
 243  102448
         return true;
 244  
     }
 245  
     /**
 246  
      * The name of the cpe.
 247  
      */
 248  
     private String name;
 249  
 
 250  
     /**
 251  
      * Get the value of name.
 252  
      *
 253  
      * @return the value of name
 254  
      */
 255  
     public String getName() {
 256  21574
         return name;
 257  
     }
 258  
 
 259  
     /**
 260  
      * Set the value of name.
 261  
      *
 262  
      * @param name new value of name
 263  
      */
 264  
     public void setName(String name) {
 265  0
         this.name = name;
 266  0
     }
 267  
     /**
 268  
      * The product version number.
 269  
      */
 270  
     private String version;
 271  
 
 272  
     /**
 273  
      * Get the value of version.
 274  
      *
 275  
      * @return the value of version
 276  
      */
 277  
     public String getVersion() {
 278  3940
         return version;
 279  
     }
 280  
 
 281  
     /**
 282  
      * Set the value of version.
 283  
      *
 284  
      * @param version new value of version
 285  
      */
 286  
     public void setVersion(String version) {
 287  0
         this.version = version;
 288  0
     }
 289  
     /**
 290  
      * The product update version.
 291  
      */
 292  
     private String update;
 293  
 
 294  
     /**
 295  
      * Get the value of update.
 296  
      *
 297  
      * @return the value of update
 298  
      */
 299  
     public String getUpdate() {
 300  2858
         return update;
 301  
     }
 302  
 
 303  
     /**
 304  
      * Set the value of update.
 305  
      *
 306  
      * @param update new value of update
 307  
      */
 308  
     public void setUpdate(String update) {
 309  0
         this.update = update;
 310  0
     }
 311  
     /**
 312  
      * The product edition.
 313  
      */
 314  
     private String edition;
 315  
 
 316  
     /**
 317  
      * Get the value of edition.
 318  
      *
 319  
      * @return the value of edition
 320  
      */
 321  
     public String getEdition() {
 322  0
         return edition;
 323  
     }
 324  
 
 325  
     /**
 326  
      * Set the value of edition.
 327  
      *
 328  
      * @param edition new value of edition
 329  
      */
 330  
     public void setEdition(String edition) {
 331  0
         this.edition = edition;
 332  0
     }
 333  
 
 334  
     /**
 335  
      * Replaces '+' with '%2B' and then URL Decodes the string attempting first UTF-8, then ASCII, then default.
 336  
      *
 337  
      * @param string the string to URL Decode
 338  
      * @return the URL Decoded string
 339  
      */
 340  
     private String urlDecode(String string) {
 341  10024
         final String text = string.replace("+", "%2B");
 342  
         String result;
 343  
         try {
 344  10024
             result = URLDecoder.decode(text, "UTF-8");
 345  0
         } catch (UnsupportedEncodingException ex) {
 346  
             try {
 347  0
                 result = URLDecoder.decode(text, "ASCII");
 348  0
             } catch (UnsupportedEncodingException ex1) {
 349  0
                 result = defaultUrlDecode(text);
 350  0
             }
 351  10024
         }
 352  10024
         return result;
 353  
     }
 354  
 
 355  
     /**
 356  
      * Call {@link java.net.URLDecoder#decode(String)} to URL decode using the default encoding.
 357  
      *
 358  
      * @param text www-form-encoded URL to decode
 359  
      * @return the newly decoded String
 360  
      */
 361  
     @SuppressWarnings("deprecation")
 362  
     private String defaultUrlDecode(final String text) {
 363  0
         return URLDecoder.decode(text);
 364  
     }
 365  
 }