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HTTPRepository: don’t crash on empty files

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Fix some additional crash cases around 0-length files
This commit is contained in:
James Turner
2020-12-02 21:28:37 +00:00
parent e370477e4e
commit 57a4dc53f2
1 changed files with 29 additions and 24 deletions
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53
simgear/io/HTTPRepository.cxx
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@@ -438,32 +438,37 @@ public:
ArchiveExtractTask(const ArchiveExtractTask &) = delete;
HTTPRepoPrivate::ProcessResult run(HTTPRepoPrivate *repo) {
size_t rd = file.read((char *)buffer, bufferSize);
extractor.extractBytes(buffer, rd);
if (file.eof()) {
extractor.flush();
file.close();
if (!extractor.isAtEndOfArchive()) {
SG_LOG(SG_TERRASYNC, SG_ALERT, "Corrupt tarball " << relativePath);
repo->failedToUpdateChild(relativePath,
HTTPRepository::REPO_ERROR_IO);
return HTTPRepoPrivate::ProcessFailed;
HTTPRepoPrivate::ProcessResult run(HTTPRepoPrivate* repo)
{
if (!buffer) {
return HTTPRepoPrivate::ProcessFailed;
}
if (extractor.hasError()) {
SG_LOG(SG_TERRASYNC, SG_ALERT, "Error extracting " << relativePath);
repo->failedToUpdateChild(relativePath,
HTTPRepository::REPO_ERROR_IO);
return HTTPRepoPrivate::ProcessFailed;
size_t rd = file.read((char*)buffer, bufferSize);
extractor.extractBytes(buffer, rd);
if (file.eof()) {
extractor.flush();
file.close();
if (!extractor.isAtEndOfArchive()) {
SG_LOG(SG_TERRASYNC, SG_ALERT, "Corrupt tarball " << relativePath);
repo->failedToUpdateChild(relativePath,
HTTPRepository::REPO_ERROR_IO);
return HTTPRepoPrivate::ProcessFailed;
}
if (extractor.hasError()) {
SG_LOG(SG_TERRASYNC, SG_ALERT, "Error extracting " << relativePath);
repo->failedToUpdateChild(relativePath,
HTTPRepository::REPO_ERROR_IO);
return HTTPRepoPrivate::ProcessFailed;
}
return HTTPRepoPrivate::ProcessDone;
}
return HTTPRepoPrivate::ProcessDone;
}
return HTTPRepoPrivate::ProcessContinue;
return HTTPRepoPrivate::ProcessContinue;
}
~ArchiveExtractTask() { free(buffer); }
@@ -974,6 +979,8 @@ HTTPRepository::failure() const
{
pathInRepo = _directory->absolutePath();
pathInRepo.append(fileName);
sha1_init(&hashContext);
}
protected:
@@ -986,8 +993,6 @@ HTTPRepository::failure() const
_directory->repository()->http->cancelRequest(
this, "Unable to create output file:" + pathInRepo.utf8Str());
}
sha1_init(&hashContext);
}
sha1_write(&hashContext, s, n);