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Merge "Allow punctuation through privacy filter"

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This commit is contained in:
Kurt Partridge 2012-06-21 21:53:48 -07:00 committed by Android (Google) Code Review
commit e6a39d5677
1 changed files with 46 additions and 31 deletions
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75
java/src/com/android/inputmethod/latin/ResearchLogger.java
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@ -379,29 +379,43 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
mCurrentLogUnit.addLogAtom(keys, values, false);
}
private boolean isInDictionary(CharSequence word) {
return (mDictionary != null) && (mDictionary.isValidWord(word));
/* package for test */ boolean isPrivacyThreat(String word) {
// currently: word not in dictionary or contains numbers.
if (TextUtils.isEmpty(word)) {
return false;
}
/**
* Write out enqueued LogEvents to the log, filtered for privacy.
*
* If word is in the dictionary, then it is not privacy-sensitive and all LogEvents related to
* it can be written to the log. If the word is not in the dictionary, then it may correspond
* to a proper name, which might reveal private information, so neither the word nor any
* information related to the word (e.g. the down/motion/up coordinates) should be revealed.
* These LogEvents have been marked as privacy-sensitive; non privacy-sensitive events are still
* written out.
*
* @param word the word to be checked for inclusion in the dictionary
*/
/* package for test */ synchronized void flushQueue(CharSequence word) {
if (isAllowedToLog()) {
// check for dictionary
final int length = word.length();
boolean hasLetter = false;
for (int i = 0; i < length; i = word.offsetByCodePoints(i, 1)) {
final int codePoint = Character.codePointAt(word, i);
if (Character.isDigit(codePoint)) {
return true;
}
if (Character.isLetter(codePoint)) {
hasLetter = true;
break; // Word may contain digits, but will only be allowed if in the dictionary.
}
}
if (hasLetter) {
if (mDictionary == null && mSuggest != null && mSuggest.hasMainDictionary()) {
mDictionary = mSuggest.getMainDictionary();
}
mCurrentLogUnit.setIsPrivacySafe(word != null && isInDictionary(word));
if (mDictionary == null) {
// Can't access dictionary. Assume privacy threat.
return true;
}
return !(mDictionary.isValidWord(word));
}
// No letters, no numbers. Punctuation, space, or something else.
return false;
}
/**
* Write out enqueued LogEvents to the log, possibly dropping privacy sensitive events.
*/
/* package for test */ synchronized void flushQueue(boolean removePotentiallyPrivateEvents) {
if (isAllowedToLog()) {
mCurrentLogUnit.setRemovePotentiallyPrivateEvents(removePotentiallyPrivateEvents);
mLoggingHandler.post(mCurrentLogUnit);
mCurrentLogUnit = new LogUnit();
}
@ -513,7 +527,7 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
private final List<String[]> mKeysList = new ArrayList<String[]>();
private final List<Object[]> mValuesList = new ArrayList<Object[]>();
private final List<Boolean> mIsPotentiallyPrivate = new ArrayList<Boolean>();
private boolean mIsPrivacySafe = false;
private boolean mRemovePotentiallyPrivateEvents = true;
private void addLogAtom(final String[] keys, final Object[] values,
final Boolean isPotentiallyPrivate) {
@ -522,15 +536,15 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
mIsPotentiallyPrivate.add(isPotentiallyPrivate);
}
void setIsPrivacySafe(boolean isPrivacySafe) {
mIsPrivacySafe = isPrivacySafe;
void setRemovePotentiallyPrivateEvents(boolean removePotentiallyPrivateEvents) {
mRemovePotentiallyPrivateEvents = removePotentiallyPrivateEvents;
}
@Override
public void run() {
final int numAtoms = mKeysList.size();
for (int atomIndex = 0; atomIndex < numAtoms; atomIndex++) {
if (!mIsPrivacySafe && mIsPotentiallyPrivate.get(atomIndex)) {
if (mRemovePotentiallyPrivateEvents && mIsPotentiallyPrivate.get(atomIndex)) {
continue;
}
final String[] keys = mKeysList.get(atomIndex);
@ -548,7 +562,7 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
StringBuilder sb = null;
final int length = s.length();
for (int i = 0; i < length; i = s.offsetByCodePoints(i, 1)) {
int codePoint = Character.codePointAt(s, i);
final int codePoint = Character.codePointAt(s, i);
if (Character.isDigit(codePoint)) {
if (sb == null) {
sb = new StringBuilder(length);
@ -638,19 +652,20 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
final ResearchLogger researchLogger = getInstance();
researchLogger.enqueuePotentiallyPrivateEvent(
EVENTKEYS_LATINIME_COMMITCURRENTAUTOCORRECTION, values);
researchLogger.flushQueue(autoCorrection);
researchLogger.flushQueue(researchLogger.isPrivacyThreat(autoCorrection));
}
private static final String[] EVENTKEYS_LATINIME_COMMITTEXT = {
"LatinIMECommitText", "typedWord"
};
public static void latinIME_commitText(final CharSequence typedWord) {
final String scrubbedWord = scrubDigitsFromString(typedWord.toString());
final Object[] values = {
scrubDigitsFromString(typedWord.toString())
scrubbedWord
};
final ResearchLogger researchLogger = getInstance();
researchLogger.enqueuePotentiallyPrivateEvent(EVENTKEYS_LATINIME_COMMITTEXT, values);
researchLogger.flushQueue(typedWord);
researchLogger.flushQueue(researchLogger.isPrivacyThreat(scrubbedWord));
}
private static final String[] EVENTKEYS_LATINIME_DELETESURROUNDINGTEXT = {
@ -728,7 +743,7 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
}
final ResearchLogger researchLogger = getInstance();
researchLogger.enqueueEvent(EVENTKEYS_LATINIME_ONWINDOWHIDDEN, values);
researchLogger.flushQueue(null);
researchLogger.flushQueue(true); // Play it safe. Remove privacy-sensitive events.
}
}
@ -809,7 +824,7 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
final ResearchLogger researchLogger = getInstance();
researchLogger.enqueuePotentiallyPrivateEvent(
EVENTKEYS_LATINIME_PICKAPPLICATIONSPECIFIEDCOMPLETION, values);
researchLogger.flushQueue(cs.toString());
researchLogger.flushQueue(researchLogger.isPrivacyThreat(cs.toString()));
}
private static final String[] EVENTKEYS_LATINIME_PICKSUGGESTIONMANUALLY = {
@ -824,7 +839,7 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
final ResearchLogger researchLogger = getInstance();
researchLogger.enqueuePotentiallyPrivateEvent(EVENTKEYS_LATINIME_PICKSUGGESTIONMANUALLY,
values);
researchLogger.flushQueue(suggestion.toString());
researchLogger.flushQueue(researchLogger.isPrivacyThreat(suggestion.toString()));
}
private static final String[] EVENTKEYS_LATINIME_PUNCTUATIONSUGGESTION = {