diff options
Diffstat (limited to 'mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoProfile.java')
| -rw-r--r-- | mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoProfile.java | 1002 |
1 files changed, 1002 insertions, 0 deletions
diff --git a/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoProfile.java b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoProfile.java new file mode 100644 index 000000000..27ec4f1dd --- /dev/null +++ b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoProfile.java @@ -0,0 +1,1002 @@ +/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- + * 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 android.app.Activity; +import android.content.Context; +import android.content.SharedPreferences; +import android.os.Bundle; +import android.support.annotation.WorkerThread; +import android.text.TextUtils; +import android.util.Log; + +import org.json.JSONArray; +import org.json.JSONException; +import org.json.JSONObject; +import org.mozilla.gecko.GeckoProfileDirectories.NoMozillaDirectoryException; +import org.mozilla.gecko.GeckoProfileDirectories.NoSuchProfileException; +import org.mozilla.gecko.annotation.RobocopTarget; +import org.mozilla.gecko.util.FileUtils; +import org.mozilla.gecko.util.INIParser; +import org.mozilla.gecko.util.INISection; +import org.mozilla.gecko.util.IntentUtils; + +import java.io.BufferedWriter; +import java.io.File; +import java.io.FileOutputStream; +import java.io.FileReader; +import java.io.FileWriter; +import java.io.IOException; +import java.io.OutputStreamWriter; +import java.nio.charset.Charset; +import java.util.Enumeration; +import java.util.Hashtable; +import java.util.UUID; +import java.util.concurrent.ConcurrentHashMap; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +public final class GeckoProfile { + private static final String LOGTAG = "GeckoProfile"; + + // The path in the profile to the file containing the client ID. + private static final String CLIENT_ID_FILE_PATH = "datareporting/state.json"; + private static final String FHR_CLIENT_ID_FILE_PATH = "healthreport/state.json"; + // In the client ID file, the attribute title in the JSON object containing the client ID value. + private static final String CLIENT_ID_JSON_ATTR = "clientID"; + + private static final String TIMES_PATH = "times.json"; + private static final String PROFILE_CREATION_DATE_JSON_ATTR = "created"; + + // Only tests should need to do this. + // We can default this to AppConstants.RELEASE_OR_BETA once we fix Bug 1069687. + private static volatile boolean sAcceptDirectoryChanges = true; + + @RobocopTarget + public static void enableDirectoryChanges() { + Log.w(LOGTAG, "Directory changes should only be enabled for tests. And even then it's a bad idea."); + sAcceptDirectoryChanges = true; + } + + public static final String DEFAULT_PROFILE = "default"; + // Profile is using a custom directory outside of the Mozilla directory. + public static final String CUSTOM_PROFILE = ""; + + public static final String GUEST_PROFILE_DIR = "guest"; + public static final String GUEST_MODE_PREF = "guestMode"; + + // Session store + private static final String SESSION_FILE = "sessionstore.js"; + private static final String SESSION_FILE_BACKUP = "sessionstore.bak"; + private static final String SESSION_FILE_PREVIOUS = "sessionstore.old"; + private static final long MAX_PREVIOUS_FILE_AGE = 1000 * 3600 * 24; // 24 hours + + private boolean mOldSessionDataProcessed = false; + + private static final ConcurrentHashMap<String, GeckoProfile> sProfileCache = + new ConcurrentHashMap<String, GeckoProfile>( + /* capacity */ 4, /* load factor */ 0.75f, /* concurrency */ 2); + private static String sDefaultProfileName; + + private final String mName; + private final File mMozillaDir; + private final Context mApplicationContext; + + private Object mData; + + /** + * Access to this member should be synchronized to avoid + * races during creation -- particularly between getDir and GeckoView#init. + * + * Not final because this is lazily computed. + */ + private File mProfileDir; + + private Boolean mInGuestMode; + + public static boolean shouldUseGuestMode(final Context context) { + return GeckoSharedPrefs.forApp(context).getBoolean(GUEST_MODE_PREF, false); + } + + public static void enterGuestMode(final Context context) { + GeckoSharedPrefs.forApp(context).edit().putBoolean(GUEST_MODE_PREF, true).commit(); + } + + public static void leaveGuestMode(final Context context) { + GeckoSharedPrefs.forApp(context).edit().putBoolean(GUEST_MODE_PREF, false).commit(); + } + + public static GeckoProfile initFromArgs(final Context context, final String args) { + if (shouldUseGuestMode(context)) { + final GeckoProfile guestProfile = getGuestProfile(context); + if (guestProfile != null) { + return guestProfile; + } + // Failed to create guest profile; leave guest mode. + leaveGuestMode(context); + } + + // We never want to use the guest mode profile concurrently with a normal profile + // -- no syncing to it, no dual-profile usage, nothing. GeckoThread startup with + // a conventional GeckoProfile will cause the guest profile to be deleted and + // guest mode to reset. + if (getGuestDir(context).isDirectory()) { + final GeckoProfile guestProfile = getGuestProfile(context); + if (guestProfile != null) { + removeProfile(context, guestProfile); + } + } + + String profileName = null; + String profilePath = null; + + if (args != null && args.contains("-P")) { + final Pattern p = Pattern.compile("(?:-P\\s*)(\\w*)(\\s*)"); + final Matcher m = p.matcher(args); + if (m.find()) { + profileName = m.group(1); + } + } + + if (args != null && args.contains("-profile")) { + final Pattern p = Pattern.compile("(?:-profile\\s*)(\\S*)(\\s*)"); + final Matcher m = p.matcher(args); + if (m.find()) { + profilePath = m.group(1); + } + } + + if (profileName == null && profilePath == null) { + // Get the default profile for the Activity. + return getDefaultProfile(context); + } + + return GeckoProfile.get(context, profileName, profilePath); + } + + private static GeckoProfile getDefaultProfile(Context context) { + try { + return get(context, getDefaultProfileName(context)); + + } catch (final NoMozillaDirectoryException e) { + // If this failed, we're screwed. + Log.wtf(LOGTAG, "Unable to get default profile name.", e); + throw new RuntimeException(e); + } + } + + public static GeckoProfile get(Context context) { + return get(context, null, (File) null); + } + + public static GeckoProfile get(Context context, String profileName) { + if (profileName != null) { + GeckoProfile profile = sProfileCache.get(profileName); + if (profile != null) + return profile; + } + return get(context, profileName, (File)null); + } + + @RobocopTarget + public static GeckoProfile get(Context context, String profileName, String profilePath) { + File dir = null; + if (!TextUtils.isEmpty(profilePath)) { + dir = new File(profilePath); + if (!dir.exists() || !dir.isDirectory()) { + Log.w(LOGTAG, "requested profile directory missing: " + profilePath); + } + } + return get(context, profileName, dir); + } + + // Note that the profile cache respects only the profile name! + // If the directory changes, the returned GeckoProfile instance will be mutated. + @RobocopTarget + public static GeckoProfile get(Context context, String profileName, File profileDir) { + if (context == null) { + throw new IllegalArgumentException("context must be non-null"); + } + + // Null name? | Null dir? | Returned profile + // ------------------------------------------ + // Yes | Yes | Active profile or default profile. + // No | Yes | Profile with specified name at default dir. + // Yes | No | Custom (anonymous) profile with specified dir. + // No | No | Profile with specified name at specified dir. + + if (profileName == null && profileDir == null) { + // If no profile info was passed in, look for the active profile or a default profile. + final GeckoProfile profile = GeckoThread.getActiveProfile(); + if (profile != null) { + return profile; + } + + final String args; + if (context instanceof Activity) { + args = IntentUtils.getStringExtraSafe(((Activity) context).getIntent(), "args"); + } else { + args = null; + } + + return GeckoProfile.initFromArgs(context, args); + + } else if (profileName == null) { + // If only profile dir was passed in, use custom (anonymous) profile. + profileName = CUSTOM_PROFILE; + + } else if (AppConstants.DEBUG_BUILD) { + Log.v(LOGTAG, "Fetching profile: '" + profileName + "', '" + profileDir + "'"); + } + + // We require the profile dir to exist if specified, so create it here if needed. + final boolean init = profileDir != null && profileDir.mkdirs(); + + // Actually try to look up the profile. + GeckoProfile profile = sProfileCache.get(profileName); + GeckoProfile newProfile = null; + + if (profile == null) { + try { + newProfile = new GeckoProfile(context, profileName, profileDir); + } catch (NoMozillaDirectoryException e) { + // We're unable to do anything sane here. + throw new RuntimeException(e); + } + + profile = sProfileCache.putIfAbsent(profileName, newProfile); + } + + if (profile == null) { + profile = newProfile; + + } else if (profileDir != null) { + // We have an existing profile but was given an alternate directory. + boolean consistent = false; + try { + consistent = profile.mProfileDir != null && + profile.mProfileDir.getCanonicalPath().equals(profileDir.getCanonicalPath()); + } catch (final IOException e) { + } + + if (!consistent) { + if (!sAcceptDirectoryChanges || !profileDir.isDirectory()) { + throw new IllegalStateException( + "Refusing to reuse profile with a different directory."); + } + + if (AppConstants.RELEASE_OR_BETA) { + Log.e(LOGTAG, "Release build trying to switch out profile dir. " + + "This is an error, but let's do what we can."); + } + profile.setDir(profileDir); + } + } + + if (init) { + // Initialize the profile directory if we had to create it. + profile.enqueueInitialization(profileDir); + } + + return profile; + } + + // Currently unused outside of testing. + @RobocopTarget + public static boolean removeProfile(final Context context, final GeckoProfile profile) { + final boolean success = profile.remove(); + + if (success) { + // Clear all shared prefs for the given profile. + GeckoSharedPrefs.forProfileName(context, profile.getName()) + .edit().clear().apply(); + } + + return success; + } + + private static File getGuestDir(final Context context) { + return context.getFileStreamPath(GUEST_PROFILE_DIR); + } + + @RobocopTarget + public static GeckoProfile getGuestProfile(final Context context) { + return get(context, CUSTOM_PROFILE, getGuestDir(context)); + } + + public static boolean isGuestProfile(final Context context, final String profileName, + final File profileDir) { + // Guest profile is just a custom profile with a special path. + if (profileDir == null || !CUSTOM_PROFILE.equals(profileName)) { + return false; + } + + try { + return profileDir.getCanonicalPath().equals(getGuestDir(context).getCanonicalPath()); + } catch (final IOException e) { + return false; + } + } + + private GeckoProfile(Context context, String profileName, File profileDir) throws NoMozillaDirectoryException { + if (profileName == null) { + throw new IllegalArgumentException("Unable to create GeckoProfile for empty profile name."); + } else if (CUSTOM_PROFILE.equals(profileName) && profileDir == null) { + throw new IllegalArgumentException("Custom profile must have a directory"); + } + + mApplicationContext = context.getApplicationContext(); + mName = profileName; + mMozillaDir = GeckoProfileDirectories.getMozillaDirectory(context); + + mProfileDir = profileDir; + if (profileDir != null && !profileDir.isDirectory()) { + throw new IllegalArgumentException("Profile directory must exist if specified."); + } + } + + /** + * Return the custom data object associated with this profile, which was set by the + * previous {@link #setData(Object)} call. This association is valid for the duration + * of the process lifetime. The caller must ensure proper synchronization, typically + * by synchronizing on the object returned by {@link #getLock()}. + * + * The data object is usually a database object that stores per-profile data such as + * page history. However, it can be any other object that needs to maintain + * profile-specific state. + * + * @return Associated data object + */ + public Object getData() { + return mData; + } + + /** + * Associate this profile with a custom data object, which can be retrieved by + * subsequent {@link #getData()} calls. The caller must ensure proper + * synchronization, typically by synchronizing on the object returned by {@link + * #getLock()}. + * + * @param data Custom data object + */ + public void setData(final Object data) { + mData = data; + } + + private void setDir(File dir) { + if (dir != null && dir.exists() && dir.isDirectory()) { + synchronized (this) { + mProfileDir = dir; + mInGuestMode = null; + } + } + } + + @RobocopTarget + public String getName() { + return mName; + } + + public boolean isCustomProfile() { + return CUSTOM_PROFILE.equals(mName); + } + + @RobocopTarget + public boolean inGuestMode() { + if (mInGuestMode == null) { + mInGuestMode = isGuestProfile(GeckoAppShell.getApplicationContext(), + mName, mProfileDir); + } + return mInGuestMode; + } + + /** + * Return an Object that can be used with a synchronized statement to allow + * exclusive access to the profile. + */ + public Object getLock() { + return this; + } + + /** + * Retrieves the directory backing the profile. This method acts + * as a lazy initializer for the GeckoProfile instance. + */ + @RobocopTarget + public synchronized File getDir() { + forceCreateLocked(); + return mProfileDir; + } + + /** + * Forces profile creation. Consider using {@link #getDir()} to initialize the profile instead - it is the + * lazy initializer and, for our code reasoning abilities, we should initialize the profile in one place. + */ + private void forceCreateLocked() { + if (mProfileDir != null) { + return; + } + + try { + // Check if a profile with this name already exists. + try { + mProfileDir = findProfileDir(); + Log.d(LOGTAG, "Found profile dir."); + } catch (NoSuchProfileException noSuchProfile) { + // If it doesn't exist, create it. + mProfileDir = createProfileDir(); + } + } catch (IOException ioe) { + Log.e(LOGTAG, "Error getting profile dir", ioe); + } + } + + public File getFile(String aFile) { + File f = getDir(); + if (f == null) + return null; + + return new File(f, aFile); + } + + /** + * Retrieves the Gecko client ID from the filesystem. If the client ID does not exist, we attempt to migrate and + * persist it from FHR and, if that fails, we attempt to create a new one ourselves. + * + * This method assumes the client ID is located in a file at a hard-coded path within the profile. The format of + * this file is a JSONObject which at the bottom level contains a String -> String mapping containing the client ID. + * + * WARNING: the platform provides a JSM to retrieve the client ID [1] and this would be a + * robust way to access it. However, we don't want to rely on Gecko running in order to get + * the client ID so instead we access the file this module accesses directly. However, it's + * possible the format of this file (and the access calls in the jsm) will change, leaving + * this code to fail. There are tests in TestGeckoProfile to verify the file format but be + * warned: THIS IS NOT FOOLPROOF. + * + * [1]: https://dxr.mozilla.org/mozilla-central/source/toolkit/modules/ClientID.jsm + * + * @throws IOException if the client ID could not be retrieved. + */ + // Mimics ClientID.jsm – _doLoadClientID. + @WorkerThread + public String getClientId() throws IOException { + try { + return getValidClientIdFromDisk(CLIENT_ID_FILE_PATH); + } catch (final IOException e) { + // Avoid log spam: don't log the full Exception w/ the stack trace. + Log.d(LOGTAG, "Could not get client ID - attempting to migrate ID from FHR: " + e.getLocalizedMessage()); + } + + String clientIdToWrite; + try { + clientIdToWrite = getValidClientIdFromDisk(FHR_CLIENT_ID_FILE_PATH); + } catch (final IOException e) { + // Avoid log spam: don't log the full Exception w/ the stack trace. + Log.d(LOGTAG, "Could not migrate client ID from FHR – creating a new one: " + e.getLocalizedMessage()); + clientIdToWrite = generateNewClientId(); + } + + // There is a possibility Gecko is running and the Gecko telemetry implementation decided it's time to generate + // the client ID, writing client ID underneath us. Since it's highly unlikely (e.g. we run in onStart before + // Gecko is started), we don't handle that possibility besides writing the ID and then reading from the file + // again (rather than just returning the value we generated before writing). + // + // In the event it does happen, any discrepancy will be resolved after a restart. In the mean time, both this + // implementation and the Gecko implementation could upload documents with inconsistent IDs. + // + // In any case, if we get an exception, intentionally throw - there's nothing more to do here. + persistClientId(clientIdToWrite); + return getValidClientIdFromDisk(CLIENT_ID_FILE_PATH); + } + + protected static String generateNewClientId() { + return UUID.randomUUID().toString(); + } + + /** + * @return a valid client ID + * @throws IOException if a valid client ID could not be retrieved + */ + @WorkerThread + private String getValidClientIdFromDisk(final String filePath) throws IOException { + final JSONObject obj = readJSONObjectFromFile(filePath); + final String clientId = obj.optString(CLIENT_ID_JSON_ATTR); + if (isClientIdValid(clientId)) { + return clientId; + } + throw new IOException("Received client ID is invalid: " + clientId); + } + + /** + * Persists the given client ID to disk. This will overwrite any existing files. + */ + @WorkerThread + private void persistClientId(final String clientId) throws IOException { + if (!ensureParentDirs(CLIENT_ID_FILE_PATH)) { + throw new IOException("Could not create client ID parent directories"); + } + + final JSONObject obj = new JSONObject(); + try { + obj.put(CLIENT_ID_JSON_ATTR, clientId); + } catch (final JSONException e) { + throw new IOException("Could not create client ID JSON object", e); + } + + // ClientID.jsm overwrites the file to store the client ID so it's okay if we do it too. + Log.d(LOGTAG, "Attempting to write new client ID"); + writeFile(CLIENT_ID_FILE_PATH, obj.toString()); // Logs errors within function: ideally we'd throw. + } + + // From ClientID.jsm - isValidClientID. + public static boolean isClientIdValid(final String clientId) { + // We could use UUID.fromString but, for consistency, we take the implementation from ClientID.jsm. + if (TextUtils.isEmpty(clientId)) { + return false; + } + return clientId.matches("(?i:[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})"); + } + + /** + * Gets the profile creation date and persists it if it had to be generated. + * + * To get this value, we first look in times.json. If that could not be accessed, we + * return the package's first install date. This is not a perfect solution because a + * user may have large gap between install time and first use. + * + * A more correct algorithm could be the one performed by the JS code in ProfileAge.jsm + * getOldestProfileTimestamp: walk the tree and return the oldest timestamp on the files + * within the profile. However, since times.json will only not exist for the small + * number of really old profiles, we're okay with the package install date compromise for + * simplicity. + * + * @return the profile creation date in the format returned by {@link System#currentTimeMillis()} + * or -1 if the value could not be persisted. + */ + @WorkerThread + public long getAndPersistProfileCreationDate(final Context context) { + try { + return getProfileCreationDateFromTimesFile(); + } catch (final IOException e) { + Log.d(LOGTAG, "Unable to retrieve profile creation date from times.json. Getting from system..."); + final long packageInstallMillis = org.mozilla.gecko.util.ContextUtils.getCurrentPackageInfo(context).firstInstallTime; + try { + persistProfileCreationDateToTimesFile(packageInstallMillis); + } catch (final IOException ioEx) { + // We return -1 to ensure the profileCreationDate + // will either be an error (-1) or a consistent value. + Log.w(LOGTAG, "Unable to persist profile creation date - returning -1"); + return -1; + } + + return packageInstallMillis; + } + } + + @WorkerThread + private long getProfileCreationDateFromTimesFile() throws IOException { + final JSONObject obj = readJSONObjectFromFile(TIMES_PATH); + try { + return obj.getLong(PROFILE_CREATION_DATE_JSON_ATTR); + } catch (final JSONException e) { + // Don't log to avoid leaking data in JSONObject. + throw new IOException("Profile creation does not exist in JSONObject"); + } + } + + @WorkerThread + private void persistProfileCreationDateToTimesFile(final long profileCreationMillis) throws IOException { + final JSONObject obj = new JSONObject(); + try { + obj.put(PROFILE_CREATION_DATE_JSON_ATTR, profileCreationMillis); + } catch (final JSONException e) { + // Don't log to avoid leaking data in JSONObject. + throw new IOException("Unable to persist profile creation date to times file"); + } + Log.d(LOGTAG, "Attempting to write new profile creation date"); + writeFile(TIMES_PATH, obj.toString()); // Ideally we'd throw here too. + } + + /** + * Updates the state of the old session data file. + * + * sessionstore.js should hold the current session, and sessionstore.old should + * hold the previous session (where it is used to read the "tabs from last time"). + * If we're not restoring tabs automatically, sessionstore.js needs to be moved to + * sessionstore.old, so we can display the correct "tabs from last time". + * If we *are* restoring tabs, we need to delete outdated copies of sessionstore.old, + * so we don't continue showing stale "tabs from last time" indefinitely. + * + * @param shouldRestore Pass true if we are automatically restoring last session's tabs. + */ + public void updateSessionFile(boolean shouldRestore) { + File sessionFilePrevious = getFile(SESSION_FILE_PREVIOUS); + if (!shouldRestore) { + File sessionFile = getFile(SESSION_FILE); + if (sessionFile != null && sessionFile.exists()) { + sessionFile.renameTo(sessionFilePrevious); + } + } else { + if (sessionFilePrevious != null && sessionFilePrevious.exists() && + System.currentTimeMillis() - sessionFilePrevious.lastModified() > MAX_PREVIOUS_FILE_AGE) { + sessionFilePrevious.delete(); + } + } + synchronized (this) { + mOldSessionDataProcessed = true; + notifyAll(); + } + } + + public void waitForOldSessionDataProcessing() { + synchronized (this) { + while (!mOldSessionDataProcessed) { + try { + wait(); + } catch (final InterruptedException e) { + // Ignore and wait again. + } + } + } + } + + /** + * Get the string from a session file. + * + * The session can either be read from sessionstore.js or sessionstore.bak. + * In general, sessionstore.js holds the current session, and + * sessionstore.bak holds a backup copy in case of interrupted writes. + * + * @param readBackup if true, the session is read from sessionstore.bak; + * otherwise, the session is read from sessionstore.js + * + * @return the session string + */ + public String readSessionFile(boolean readBackup) { + return readSessionFile(readBackup ? SESSION_FILE_BACKUP : SESSION_FILE); + } + + /** + * Get the string from last session's session file. + * + * If we are not restoring tabs automatically, sessionstore.old will contain + * the previous session. + * + * @return the session string + */ + public String readPreviousSessionFile() { + return readSessionFile(SESSION_FILE_PREVIOUS); + } + + private String readSessionFile(String fileName) { + File sessionFile = getFile(fileName); + + try { + if (sessionFile != null && sessionFile.exists()) { + return readFile(sessionFile); + } + } catch (IOException ioe) { + Log.e(LOGTAG, "Unable to read session file", ioe); + } + return null; + } + + /** + * Checks whether the session store file exists. + */ + public boolean sessionFileExists() { + File sessionFile = getFile(SESSION_FILE); + + return sessionFile != null && sessionFile.exists(); + } + + /** + * Ensures the parent director(y|ies) of the given filename exist by making them + * if they don't already exist.. + * + * @param filename The path to the file whose parents should be made directories + * @return true if the parent directory exists, false otherwise + */ + @WorkerThread + protected boolean ensureParentDirs(final String filename) { + final File file = new File(getDir(), filename); + final File parentFile = file.getParentFile(); + return parentFile.mkdirs() || parentFile.isDirectory(); + } + + public void writeFile(final String filename, final String data) { + File file = new File(getDir(), filename); + BufferedWriter bufferedWriter = null; + try { + bufferedWriter = new BufferedWriter(new FileWriter(file, false)); + bufferedWriter.write(data); + } catch (IOException e) { + Log.e(LOGTAG, "Unable to write to file", e); + } finally { + try { + if (bufferedWriter != null) { + bufferedWriter.close(); + } + } catch (IOException e) { + Log.e(LOGTAG, "Error closing writer while writing to file", e); + } + } + } + + @WorkerThread + public JSONObject readJSONObjectFromFile(final String filename) throws IOException { + final String fileContents; + try { + fileContents = readFile(filename); + } catch (final IOException e) { + // Don't log exception to avoid leaking profile path. + throw new IOException("Could not access given file to retrieve JSONObject"); + } + + try { + return new JSONObject(fileContents); + } catch (final JSONException e) { + // Don't log exception to avoid leaking profile path. + throw new IOException("Could not parse JSON to retrieve JSONObject"); + } + } + + public JSONArray readJSONArrayFromFile(final String filename) { + String fileContent; + try { + fileContent = readFile(filename); + } catch (IOException expected) { + return new JSONArray(); + } + + JSONArray jsonArray; + try { + jsonArray = new JSONArray(fileContent); + } catch (JSONException e) { + jsonArray = new JSONArray(); + } + return jsonArray; + } + + public String readFile(String filename) throws IOException { + File dir = getDir(); + if (dir == null) { + throw new IOException("No profile directory found"); + } + File target = new File(dir, filename); + return readFile(target); + } + + private String readFile(File target) throws IOException { + FileReader fr = new FileReader(target); + try { + StringBuilder sb = new StringBuilder(); + char[] buf = new char[8192]; + int read = fr.read(buf); + while (read >= 0) { + sb.append(buf, 0, read); + read = fr.read(buf); + } + return sb.toString(); + } finally { + fr.close(); + } + } + + public boolean deleteFileFromProfileDir(String fileName) throws IllegalArgumentException { + if (TextUtils.isEmpty(fileName)) { + throw new IllegalArgumentException("Filename cannot be empty."); + } + File file = new File(getDir(), fileName); + return file.delete(); + } + + private boolean remove() { + try { + synchronized (this) { + if (mProfileDir != null && mProfileDir.exists()) { + FileUtils.delete(mProfileDir); + } + + if (isCustomProfile()) { + // Custom profiles don't have profile.ini sections that we need to remove. + return true; + } + + try { + // If findProfileDir() succeeds, it means the profile was created + // through forceCreate(), so we set mProfileDir to null to enable + // forceCreate() to create the profile again. + findProfileDir(); + mProfileDir = null; + + } catch (final NoSuchProfileException e) { + // If findProfileDir() throws, it means the profile was not created + // through forceCreate(), and we have to preserve mProfileDir because + // it was given to us. In that case, there's nothing left to do here. + return true; + } + } + + final INIParser parser = GeckoProfileDirectories.getProfilesINI(mMozillaDir); + final Hashtable<String, INISection> sections = parser.getSections(); + for (Enumeration<INISection> e = sections.elements(); e.hasMoreElements();) { + final INISection section = e.nextElement(); + String name = section.getStringProperty("Name"); + + if (name == null || !name.equals(mName)) { + continue; + } + + if (section.getName().startsWith("Profile")) { + // ok, we have stupid Profile#-named things. Rename backwards. + try { + int sectionNumber = Integer.parseInt(section.getName().substring("Profile".length())); + String curSection = "Profile" + sectionNumber; + String nextSection = "Profile" + (sectionNumber + 1); + + sections.remove(curSection); + + while (sections.containsKey(nextSection)) { + parser.renameSection(nextSection, curSection); + sectionNumber++; + + curSection = nextSection; + nextSection = "Profile" + (sectionNumber + 1); + } + } catch (NumberFormatException nex) { + // uhm, malformed Profile thing; we can't do much. + Log.e(LOGTAG, "Malformed section name in profiles.ini: " + section.getName()); + return false; + } + } else { + // this really shouldn't be the case, but handle it anyway + parser.removeSection(mName); + } + + break; + } + + parser.write(); + return true; + } catch (IOException ex) { + Log.w(LOGTAG, "Failed to remove profile.", ex); + return false; + } + } + + /** + * @return the default profile name for this application, or + * {@link GeckoProfile#DEFAULT_PROFILE} if none could be found. + * + * @throws NoMozillaDirectoryException + * if the Mozilla directory did not exist and could not be + * created. + */ + public static String getDefaultProfileName(final Context context) throws NoMozillaDirectoryException { + // Have we read the default profile from the INI already? + // Changing the default profile requires a restart, so we don't + // need to worry about runtime changes. + if (sDefaultProfileName != null) { + return sDefaultProfileName; + } + + final String profileName = GeckoProfileDirectories.findDefaultProfileName(context); + if (profileName == null) { + // Note that we don't persist this back to profiles.ini. + sDefaultProfileName = DEFAULT_PROFILE; + return DEFAULT_PROFILE; + } + + sDefaultProfileName = profileName; + return sDefaultProfileName; + } + + private File findProfileDir() throws NoSuchProfileException { + if (isCustomProfile()) { + return mProfileDir; + } + return GeckoProfileDirectories.findProfileDir(mMozillaDir, mName); + } + + @WorkerThread + private File createProfileDir() throws IOException { + if (isCustomProfile()) { + // Custom profiles must already exist. + return mProfileDir; + } + + INIParser parser = GeckoProfileDirectories.getProfilesINI(mMozillaDir); + + // Salt the name of our requested profile + String saltedName; + File profileDir; + do { + saltedName = GeckoProfileDirectories.saltProfileName(mName); + profileDir = new File(mMozillaDir, saltedName); + } while (profileDir.exists()); + + // Attempt to create the salted profile dir + if (!profileDir.mkdirs()) { + throw new IOException("Unable to create profile."); + } + Log.d(LOGTAG, "Created new profile dir."); + + // Now update profiles.ini + // If this is the first time its created, we also add a General section + // look for the first profile number that isn't taken yet + int profileNum = 0; + boolean isDefaultSet = false; + INISection profileSection; + while ((profileSection = parser.getSection("Profile" + profileNum)) != null) { + profileNum++; + if (profileSection.getProperty("Default") != null) { + isDefaultSet = true; + } + } + + profileSection = new INISection("Profile" + profileNum); + profileSection.setProperty("Name", mName); + profileSection.setProperty("IsRelative", 1); + profileSection.setProperty("Path", saltedName); + + if (parser.getSection("General") == null) { + INISection generalSection = new INISection("General"); + generalSection.setProperty("StartWithLastProfile", 1); + parser.addSection(generalSection); + } + + if (!isDefaultSet) { + // only set as default if this is the first profile we're creating + profileSection.setProperty("Default", 1); + } + + parser.addSection(profileSection); + parser.write(); + + enqueueInitialization(profileDir); + + // Write out profile creation time, mirroring the logic in nsToolkitProfileService. + try { + FileOutputStream stream = new FileOutputStream(profileDir.getAbsolutePath() + File.separator + TIMES_PATH); + OutputStreamWriter writer = new OutputStreamWriter(stream, Charset.forName("UTF-8")); + try { + writer.append("{\"created\": " + System.currentTimeMillis() + "}\n"); + } finally { + writer.close(); + } + } catch (Exception e) { + // Best-effort. + Log.w(LOGTAG, "Couldn't write " + TIMES_PATH, e); + } + + // Create the client ID file before Gecko starts (we assume this method + // is called before Gecko starts). If we let Gecko start, the JS telemetry + // code may try to write to the file at the same time Java does. + persistClientId(generateNewClientId()); + + return profileDir; + } + + /** + * This method is called once, immediately before creation of the profile + * directory completes. + * + * It queues up work to be done in the background to prepare the profile, + * such as adding default bookmarks. + * + * This is public for use *from tests only*! + */ + @RobocopTarget + public void enqueueInitialization(final File profileDir) { + Log.i(LOGTAG, "Enqueuing profile init."); + + final Bundle message = new Bundle(2); + message.putCharSequence("name", getName()); + message.putCharSequence("path", profileDir.getAbsolutePath()); + EventDispatcher.getInstance().dispatch("Profile:Create", message); + } +} |