diff options
Diffstat (limited to 'native/jni/src')
5 files changed, 32 insertions, 4 deletions
diff --git a/native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.cpp b/native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.cpp index bc2f5ee58..29307b56a 100644 --- a/native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.cpp +++ b/native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.cpp @@ -325,7 +325,7 @@ int DynamicBigramListPolicy::followBigramLinkAndGetCurrentBigramPtNodePos( nodeReader.fetchNodeInfoInBufferFromPtNodePos(currentPos); bigramLinkCount++; if (bigramLinkCount > CONTINUING_BIGRAM_LINK_COUNT_LIMIT) { - AKLOGE("Bigram link is invalid. start position: %d", bigramPos); + AKLOGE("Bigram link is invalid. start position: %d", originalBigramPos); ASSERT(false); return NOT_A_DICT_POS; } diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.h b/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.h index b033eee05..c6d8ddcf7 100644 --- a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.h +++ b/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.h @@ -263,7 +263,7 @@ class DynamicPatriciaTrieReadingHelper { AK_FORCE_INLINE void pushReadingStateToStack() { if (mReadingStateStack.size() > MAX_READING_STATE_STACK_SIZE) { - AKLOGI("Reading state stack overflow. Max size: %d", MAX_READING_STATE_STACK_SIZE); + AKLOGI("Reading state stack overflow. Max size: %zd", MAX_READING_STATE_STACK_SIZE); ASSERT(false); mIsError = true; mReadingState.mPos = NOT_A_DICT_POS; diff --git a/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.cpp b/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.cpp index 5269795a4..8a84bd261 100644 --- a/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.cpp +++ b/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.cpp @@ -31,9 +31,21 @@ void PatriciaTriePolicy::createAndGetAllChildNodes(const DicNode *const dicNode, return; } int nextPos = dicNode->getChildrenPos(); + if (nextPos < 0 || nextPos >= mDictBufferSize) { + AKLOGE("Children PtNode array position is invalid. pos: %d, dict size: %d", + nextPos, mDictBufferSize); + ASSERT(false); + return; + } const int childCount = PatriciaTrieReadingUtils::getPtNodeArraySizeAndAdvancePosition( mDictRoot, &nextPos); for (int i = 0; i < childCount; i++) { + if (nextPos < 0 || nextPos >= mDictBufferSize) { + AKLOGE("Child PtNode position is invalid. pos: %d, dict size: %d, childCount: %d / %d", + nextPos, mDictBufferSize, i, childCount); + ASSERT(false); + return; + } nextPos = createAndGetLeavingChildNode(dicNode, nextPos, childDicNodes); } } @@ -404,6 +416,11 @@ int PatriciaTriePolicy::createAndGetLeavingChildNode(const DicNode *const dicNod if (PatriciaTrieReadingUtils::hasBigrams(flags)) { getBigramsStructurePolicy()->skipAllBigrams(&pos); } + if (mergedNodeCodePointCount <= 0) { + AKLOGE("Empty PtNode is not allowed. Code point count: %d", mergedNodeCodePointCount); + ASSERT(false); + return pos; + } childDicNodes->pushLeavingChild(dicNode, ptNodePos, childrenPos, probability, PatriciaTrieReadingUtils::isTerminal(flags), PatriciaTrieReadingUtils::hasChildrenInFlags(flags), diff --git a/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.h b/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.h index 19155f938..f1de914cb 100644 --- a/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.h +++ b/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.h @@ -36,6 +36,7 @@ class PatriciaTriePolicy : public DictionaryStructureWithBufferPolicy { PatriciaTriePolicy(const MmappedBuffer *const buffer) : mBuffer(buffer), mHeaderPolicy(mBuffer->getBuffer(), buffer->getBufferSize()), mDictRoot(mBuffer->getBuffer() + mHeaderPolicy.getSize()), + mDictBufferSize(mBuffer->getBufferSize() - mHeaderPolicy.getSize()), mBigramListPolicy(mDictRoot), mShortcutListPolicy(mDictRoot) {} ~PatriciaTriePolicy() { @@ -118,6 +119,7 @@ class PatriciaTriePolicy : public DictionaryStructureWithBufferPolicy { const MmappedBuffer *const mBuffer; const HeaderPolicy mHeaderPolicy; const uint8_t *const mDictRoot; + const int mDictBufferSize; const BigramListPolicy mBigramListPolicy; const ShortcutListPolicy mShortcutListPolicy; diff --git a/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_reading_utils.cpp b/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_reading_utils.cpp index 1316b425f..7df55815f 100644 --- a/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_reading_utils.cpp +++ b/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_reading_utils.cpp @@ -71,8 +71,17 @@ const PtReadingUtils::NodeFlags PtReadingUtils::FLAG_IS_BLACKLISTED = 0x01; length = ByteArrayUtils::readStringAndAdvancePosition(buffer, maxLength, outBuffer, pos); } else { - if (maxLength > 0) { - outBuffer[0] = getCodePointAndAdvancePosition(buffer, pos); + const int codePoint = getCodePointAndAdvancePosition(buffer, pos); + if (codePoint == NOT_A_CODE_POINT) { + // CAVEAT: codePoint == NOT_A_CODE_POINT means the code point is + // CHARACTER_ARRAY_TERMINATOR. The code point must not be CHARACTER_ARRAY_TERMINATOR + // when the PtNode has a single code point. + length = 0; + AKLOGE("codePoint is NOT_A_CODE_POINT. pos: %d, codePoint: 0x%x, buffer[pos - 1]: 0x%x", + *pos - 1, codePoint, buffer[*pos - 1]); + ASSERT(false); + } else if (maxLength > 0) { + outBuffer[0] = codePoint; length = 1; } } |