The Tor Browser: mobile/android/base/GeckoProfileDirectories.java@fc2d59ddac77 (annotated)

mobile/android/base/GeckoProfileDirectories.java@fc2d59ddac77 (annotated)

mobile/android/base/GeckoProfileDirectories.java

Wed, 31 Dec 2014 07:22:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:22:50 +0100
branch: TOR_BUG_3246
changeset 4: fc2d59ddac77
permissions: -rw-r--r--

Correct previous dual key logic pending first delivery installment.

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 package org.mozilla.gecko;
 import java.io.File;
 import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.Map;
 import org.mozilla.gecko.util.INIParser;
 import org.mozilla.gecko.util.INISection;
 import android.content.Context;
 /**
  * <code>GeckoProfileDirectories</code> manages access to mappings from profile
  * names to salted profile directory paths, as well as the default profile name.
  *
  * This class will eventually come to encapsulate the remaining logic embedded
  * in profiles.ini; for now it's a read-only wrapper.
  */
 public class GeckoProfileDirectories {
     @SuppressWarnings("serial")
     public static class NoMozillaDirectoryException extends Exception {
         public NoMozillaDirectoryException(Throwable cause) {
             super(cause);
         }
         public NoMozillaDirectoryException(String reason) {
             super(reason);
         }
         public NoMozillaDirectoryException(String reason, Throwable cause) {
             super(reason, cause);
         }
     }
     @SuppressWarnings("serial")
     public static class NoSuchProfileException extends Exception {
         public NoSuchProfileException(String detailMessage, Throwable cause) {
             super(detailMessage, cause);
         }
         public NoSuchProfileException(String detailMessage) {
             super(detailMessage);
         }
     }
     private interface INISectionPredicate {
         public boolean matches(INISection section);
     }
     private static final String MOZILLA_DIR_NAME = "mozilla";
     /**
      * Returns true if the supplied profile entry represents the default profile.
      */
     private static INISectionPredicate sectionIsDefault = new INISectionPredicate() {
         @Override
         public boolean matches(INISection section) {
             return section.getIntProperty("Default") == 1;
         }
     };
     /**
      * Returns true if the supplied profile entry has a 'Name' field.
      */
     private static INISectionPredicate sectionHasName = new INISectionPredicate() {
         @Override
         public boolean matches(INISection section) {
             final String name = section.getStringProperty("Name");
             return name != null;
         }
     };
     /**
      * Package-scoped because GeckoProfile needs to dig into this in order to do writes.
      * This will be fixed in Bug 975212.
      */
     static INIParser getProfilesINI(File mozillaDir) {
         return new INIParser(new File(mozillaDir, "profiles.ini"));
     }
     /**
      * Utility method to compute a salted profile name: eight random alphanumeric
      * characters, followed by a period, followed by the profile name.
      */
     public static String saltProfileName(final String name) {
         if (name == null) {
             throw new IllegalArgumentException("Cannot salt null profile name.");
         }
         final String allowedChars = "abcdefghijklmnopqrstuvwxyz0123456789";
         final int scale = allowedChars.length();
         final int saltSize = 8;
         final StringBuilder saltBuilder = new StringBuilder(saltSize + 1 + name.length());
         for (int i = 0; i < saltSize; i++) {
             saltBuilder.append(allowedChars.charAt((int)(Math.random() * scale)));
         }
         saltBuilder.append('.');
         saltBuilder.append(name);
         return saltBuilder.toString();
     }
     /**
      * Return the Mozilla directory within the files directory of the provided
      * context. This should always be the same within a running application.
      *
      * This method is package-scoped so that new {@link GeckoProfile} instances can
      * contextualize themselves.
      *
      * @return a new File object for the Mozilla directory.
      * @throws NoMozillaDirectoryException
      *             if the directory did not exist and could not be created.
      */
     static File getMozillaDirectory(Context context) throws NoMozillaDirectoryException {
         final File mozillaDir = new File(context.getFilesDir(), MOZILLA_DIR_NAME);
         if (mozillaDir.exists() || mozillaDir.mkdirs()) {
             return mozillaDir;
         }
         // Although this leaks a path to the system log, the path is
         // predictable (unlike a profile directory), so this is fine.
         throw new NoMozillaDirectoryException("Unable to create mozilla directory at " + mozillaDir.getAbsolutePath());
     }
     /**
      * Discover the default profile name by examining profiles.ini.
      *
      * Package-scoped because {@link GeckoProfile} needs access to it.
      *
      * @return null if there is no "Default" entry in profiles.ini, or the profile
      *         name if there is.
      * @throws NoMozillaDirectoryException
      *             if the Mozilla directory did not exist and could not be created.
      */
     static String findDefaultProfileName(final Context context) throws NoMozillaDirectoryException {
       final INIParser parser = GeckoProfileDirectories.getProfilesINI(getMozillaDirectory(context));
       for (Enumeration<INISection> e = parser.getSections().elements(); e.hasMoreElements();) {
           final INISection section = e.nextElement();
           if (section.getIntProperty("Default") == 1) {
               return section.getStringProperty("Name");
           }
       }
       return null;
     }
     static Map<String, String> getDefaultProfile(final File mozillaDir) {
         return getMatchingProfiles(mozillaDir, sectionIsDefault, true);
     }
     static Map<String, String> getProfilesNamed(final File mozillaDir, final String name) {
         final INISectionPredicate predicate = new INISectionPredicate() {
             @Override
             public boolean matches(final INISection section) {
                 return name.equals(section.getStringProperty("Name"));
             }
         };
         return getMatchingProfiles(mozillaDir, predicate, true);
     }
     /**
      * Calls {@link GeckoProfileDirectories#getMatchingProfiles(File, INISectionPredicate, boolean)}
      * with a filter to ensure that all profiles are named.
      */
     static Map<String, String> getAllProfiles(final File mozillaDir) {
         return getMatchingProfiles(mozillaDir, sectionHasName, false);
     }
     /**
      * Return a mapping from the names of all matching profiles (that is,
      * profiles appearing in profiles.ini that match the supplied predicate) to
      * their absolute paths on disk.
      *
      * @param mozillaDir
      *            a directory containing profiles.ini.
      * @param predicate
      *            a predicate to use when evaluating whether to include a
      *            particular INI section.
      * @param stopOnSuccess
      *            if true, this method will return with the first result that
      *            matches the predicate; if false, all matching results are
      *            included.
      * @return a {@link Map} from name to path.
      */
     public static Map<String, String> getMatchingProfiles(final File mozillaDir, INISectionPredicate predicate, boolean stopOnSuccess) {
         final HashMap<String, String> result = new HashMap<String, String>();
         final INIParser parser = GeckoProfileDirectories.getProfilesINI(mozillaDir);
         for (Enumeration<INISection> e = parser.getSections().elements(); e.hasMoreElements();) {
             final INISection section = e.nextElement();
             if (predicate == null || predicate.matches(section)) {
                 final String name = section.getStringProperty("Name");
                 final String pathString = section.getStringProperty("Path");
                 final boolean isRelative = section.getIntProperty("IsRelative") == 1;
                 final File path = isRelative ? new File(mozillaDir, pathString) : new File(pathString);
                 result.put(name, path.getAbsolutePath());
                 if (stopOnSuccess) {
                     return result;
                 }
             }
         }
         return result;
     }
     public static File findProfileDir(final File mozillaDir, final String profileName) throws NoSuchProfileException {
         // Open profiles.ini to find the correct path.
         final INIParser parser = GeckoProfileDirectories.getProfilesINI(mozillaDir);
         for (Enumeration<INISection> e = parser.getSections().elements(); e.hasMoreElements();) {
             final INISection section = e.nextElement();
             final String name = section.getStringProperty("Name");
             if (name != null && name.equals(profileName)) {
                 if (section.getIntProperty("IsRelative") == 1) {
                     return new File(mozillaDir, section.getStringProperty("Path"));
                 }
                 return new File(section.getStringProperty("Path"));
             }
         }
         throw new NoSuchProfileException("No profile " + profileName);
     }
 }

The Tor Browser / annotate

mobile/android/base/GeckoProfileDirectories.java@fc2d59ddac77 (annotated)

mobile/android/base/GeckoProfileDirectories.java