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ggregory pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-compress.git
The following commit(s) were added to refs/heads/master by this push:
new fce011c9f SevenZFile now throws MemoryLimitException instead of other
Throwables
fce011c9f is described below
commit fce011c9f9e613652ab2c232cde23e0188bf980e
Author: Gary D. Gregory <garydgreg...@gmail.com>
AuthorDate: Fri Aug 15 19:34:28 2025 -0400
SevenZFile now throws MemoryLimitException instead of other Throwables
---
.../compress/archivers/sevenz/SevenZFile.java | 49 ++++++++++++++--------
1 file changed, 31 insertions(+), 18 deletions(-)
diff --git
a/src/main/java/org/apache/commons/compress/archivers/sevenz/SevenZFile.java
b/src/main/java/org/apache/commons/compress/archivers/sevenz/SevenZFile.java
index 90116b68b..4237a5393 100644
--- a/src/main/java/org/apache/commons/compress/archivers/sevenz/SevenZFile.java
+++ b/src/main/java/org/apache/commons/compress/archivers/sevenz/SevenZFile.java
@@ -915,20 +915,20 @@ private void buildDecodingStream(final int entryIndex,
final boolean isRandomAcc
private void calculateStreamMap(final Archive archive) throws IOException {
int nextFolderPackStreamIndex = 0;
final int numFolders = ArrayUtils.getLength(archive.folders);
- final int[] folderFirstPackStreamIndex = new int[numFolders];
+ final int[] folderFirstPackStreamIndex = new
int[checkIntArray(numFolders)];
for (int i = 0; i < numFolders; i++) {
folderFirstPackStreamIndex[i] = nextFolderPackStreamIndex;
nextFolderPackStreamIndex =
ArchiveException.addExact(nextFolderPackStreamIndex,
archive.folders[i].packedStreams.length);
}
long nextPackStreamOffset = 0;
final int numPackSizes = archive.packSizes.length;
- final long[] packStreamOffsets = new long[numPackSizes];
+ final long[] packStreamOffsets = new
long[checkLongArray(numPackSizes)];
for (int i = 0; i < numPackSizes; i++) {
packStreamOffsets[i] = nextPackStreamOffset;
nextPackStreamOffset =
ArchiveException.addExact(nextPackStreamOffset, archive.packSizes[i]);
}
- final int[] folderFirstFileIndex = new int[numFolders];
- final int[] fileFolderIndex = new int[archive.files.length];
+ final int[] folderFirstFileIndex = new int[checkIntArray(numFolders)];
+ final int[] fileFolderIndex = new
int[checkIntArray(archive.files.length)];
int nextFolderIndex = 0;
int nextFolderUnpackStreamIndex = 0;
for (int i = 0; i < archive.files.length; i++) {
@@ -960,8 +960,19 @@ private void calculateStreamMap(final Archive archive)
throws IOException {
archive.streamMap = new StreamMap(folderFirstPackStreamIndex,
packStreamOffsets, folderFirstFileIndex, fileFolderIndex);
}
- private void checkEntryIsInitialized(final Map<Integer,
SevenZArchiveEntry> archiveEntries, final int index) {
- archiveEntries.computeIfAbsent(index, i -> new SevenZArchiveEntry());
+ int checkByteArray(final int size) throws MemoryLimitException {
+ MemoryLimitException.checkKiB(bytesToKiB(size * Byte.BYTES),
maxMemoryLimitKiB);
+ return size;
+ }
+
+ int checkIntArray(final int size) throws MemoryLimitException {
+ MemoryLimitException.checkKiB(bytesToKiB(size * Integer.BYTES),
maxMemoryLimitKiB);
+ return size;
+ }
+
+ int checkLongArray(final int size) throws MemoryLimitException {
+ MemoryLimitException.checkKiB(bytesToKiB(size * Long.BYTES),
maxMemoryLimitKiB);
+ return size;
}
/**
@@ -984,6 +995,10 @@ public void close() throws IOException {
}
}
+ private void computeIfAbsent(final Map<Integer, SevenZArchiveEntry>
archiveEntries, final int index) {
+ archiveEntries.computeIfAbsent(index, i -> new SevenZArchiveEntry());
+ }
+
private InputStream getCurrentStream() throws IOException {
if (archive.files[currentEntryIndex].getSize() == 0) {
return new ByteArrayInputStream(ByteUtils.EMPTY_BYTE_ARRAY);
@@ -1232,8 +1247,7 @@ private void readArchiveProperties(final ByteBuffer
input) throws IOException {
long nid = readUint64(input);
while (nid != NID.kEnd) {
final int propertySize = readUint64ToIntExact(input);
- MemoryLimitException.checkKiB(bytesToKiB(propertySize),
maxMemoryLimitKiB);
- final byte[] property = new byte[propertySize];
+ final byte[] property = new byte[checkByteArray(propertySize)];
get(input, property);
nid = readUint64(input);
}
@@ -1334,7 +1348,7 @@ private void readFilesInfo(final ByteBuffer header, final
Archive archive) throw
int nextName = 0;
for (int i = 0; i < namesLength; i += 2) {
if (names[i] == 0 && names[i + 1] == 0) {
- checkEntryIsInitialized(fileMap, nextFile);
+ computeIfAbsent(fileMap, nextFile);
fileMap.get(nextFile).setName(new String(names,
nextName, i - nextName, UTF_16LE));
nextName = i + 2;
nextFile++;
@@ -1349,7 +1363,7 @@ private void readFilesInfo(final ByteBuffer header, final
Archive archive) throw
final BitSet timesDefined = readAllOrBits(header, numFilesInt);
/* final int external = */ getUnsignedByte(header);
for (int i = 0; i < numFilesInt; i++) {
- checkEntryIsInitialized(fileMap, i);
+ computeIfAbsent(fileMap, i);
final SevenZArchiveEntry entryAtIndex = fileMap.get(i);
entryAtIndex.setHasCreationDate(timesDefined.get(i));
if (entryAtIndex.getHasCreationDate()) {
@@ -1362,7 +1376,7 @@ private void readFilesInfo(final ByteBuffer header, final
Archive archive) throw
final BitSet timesDefined = readAllOrBits(header, numFilesInt);
/* final int external = */ getUnsignedByte(header);
for (int i = 0; i < numFilesInt; i++) {
- checkEntryIsInitialized(fileMap, i);
+ computeIfAbsent(fileMap, i);
final SevenZArchiveEntry entryAtIndex = fileMap.get(i);
entryAtIndex.setHasAccessDate(timesDefined.get(i));
if (entryAtIndex.getHasAccessDate()) {
@@ -1375,7 +1389,7 @@ private void readFilesInfo(final ByteBuffer header, final
Archive archive) throw
final BitSet timesDefined = readAllOrBits(header, numFilesInt);
/* final int external = */ getUnsignedByte(header);
for (int i = 0; i < numFilesInt; i++) {
- checkEntryIsInitialized(fileMap, i);
+ computeIfAbsent(fileMap, i);
final SevenZArchiveEntry entryAtIndex = fileMap.get(i);
entryAtIndex.setHasLastModifiedDate(timesDefined.get(i));
if (entryAtIndex.getHasLastModifiedDate()) {
@@ -1388,7 +1402,7 @@ private void readFilesInfo(final ByteBuffer header, final
Archive archive) throw
final BitSet attributesDefined = readAllOrBits(header,
numFilesInt);
/* final int external = */ getUnsignedByte(header);
for (int i = 0; i < numFilesInt; i++) {
- checkEntryIsInitialized(fileMap, i);
+ computeIfAbsent(fileMap, i);
final SevenZArchiveEntry entryAtIndex = fileMap.get(i);
entryAtIndex.setHasWindowsAttributes(attributesDefined.get(i));
if (entryAtIndex.getHasWindowsAttributes()) {
@@ -1471,8 +1485,7 @@ private Folder readFolder(final ByteBuffer header) throws
IOException {
byte[] properties = null;
if (hasAttributes) {
final long propertiesSize = readUint64(header);
- MemoryLimitException.checkKiB(bytesToKiB(propertiesSize),
maxMemoryLimitKiB);
- properties = new
byte[ArchiveException.toIntExact(propertiesSize)];
+ properties = new
byte[checkByteArray(ArchiveException.toIntExact(propertiesSize))];
get(header, properties);
}
// would need to keep looping as above:
@@ -1588,7 +1601,7 @@ private void readPackInfo(final ByteBuffer header, final
Archive archive) throws
final int numPackStreamsInt = readUint64ToIntExact(header);
int nid = getUnsignedByte(header);
if (nid == NID.kSize) {
- archive.packSizes = new long[numPackStreamsInt];
+ archive.packSizes = new long[checkLongArray(numPackStreamsInt)];
for (int i = 0; i < archive.packSizes.length; i++) {
archive.packSizes[i] = readUint64(header);
}
@@ -1596,7 +1609,7 @@ private void readPackInfo(final ByteBuffer header, final
Archive archive) throws
}
if (nid == NID.kCRC) {
archive.packCrcsDefined = readAllOrBits(header, numPackStreamsInt);
- archive.packCrcs = new long[numPackStreamsInt];
+ archive.packCrcs = new long[checkLongArray(numPackStreamsInt)];
for (int i = 0; i < numPackStreamsInt; i++) {
if (archive.packCrcsDefined.get(i)) {
archive.packCrcs[i] = 0xffffFFFFL & getInt(header);
@@ -1695,7 +1708,7 @@ private void readSubStreamsInfo(final ByteBuffer header,
final Archive archive)
}
if (nid == NID.kCRC) {
final BitSet hasMissingCrc = readAllOrBits(header, numDigests);
- final long[] missingCrcs = new long[numDigests];
+ final long[] missingCrcs = new long[checkLongArray(numDigests)];
for (int i = 0; i < numDigests; i++) {
if (hasMissingCrc.get(i)) {
missingCrcs[i] = 0xffffFFFFL & getInt(header);
