mirror of
https://git.proxmox.com/git/libgit2
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322 lines
10 KiB
C
322 lines
10 KiB
C
#include "clar_libgit2.h"
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#include <git2.h>
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#include "fileops.h"
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#include "hash.h"
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#include "iterator.h"
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#include "vector.h"
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#include "posix.h"
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/*
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* This is a packfile with three objects. The second is a delta which
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* depends on the third, which is also a delta.
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*/
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static const unsigned char out_of_order_pack[] = {
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0x50, 0x41, 0x43, 0x4b, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x03,
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0x32, 0x78, 0x9c, 0x63, 0x67, 0x00, 0x00, 0x00, 0x10, 0x00, 0x08, 0x76,
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0xe6, 0x8f, 0xe8, 0x12, 0x9b, 0x54, 0x6b, 0x10, 0x1a, 0xee, 0x95, 0x10,
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0xc5, 0x32, 0x8e, 0x7f, 0x21, 0xca, 0x1d, 0x18, 0x78, 0x9c, 0x63, 0x62,
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0x66, 0x4e, 0xcb, 0xcf, 0x07, 0x00, 0x02, 0xac, 0x01, 0x4d, 0x75, 0x01,
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0xd7, 0x71, 0x36, 0x66, 0xf4, 0xde, 0x82, 0x27, 0x76, 0xc7, 0x62, 0x2c,
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0x10, 0xf1, 0xb0, 0x7d, 0xe2, 0x80, 0xdc, 0x78, 0x9c, 0x63, 0x62, 0x62,
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0x62, 0xb7, 0x03, 0x00, 0x00, 0x69, 0x00, 0x4c, 0xde, 0x7d, 0xaa, 0xe4,
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0x19, 0x87, 0x58, 0x80, 0x61, 0x09, 0x9a, 0x33, 0xca, 0x7a, 0x31, 0x92,
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0x6f, 0xae, 0x66, 0x75
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};
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static const unsigned int out_of_order_pack_len = 112;
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/*
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* Packfile with two objects. The second is a delta against an object
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* which is not in the packfile
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*/
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static const unsigned char thin_pack[] = {
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0x50, 0x41, 0x43, 0x4b, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x02,
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0x32, 0x78, 0x9c, 0x63, 0x67, 0x00, 0x00, 0x00, 0x10, 0x00, 0x08, 0x76,
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0xe6, 0x8f, 0xe8, 0x12, 0x9b, 0x54, 0x6b, 0x10, 0x1a, 0xee, 0x95, 0x10,
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0xc5, 0x32, 0x8e, 0x7f, 0x21, 0xca, 0x1d, 0x18, 0x78, 0x9c, 0x63, 0x62,
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0x66, 0x4e, 0xcb, 0xcf, 0x07, 0x00, 0x02, 0xac, 0x01, 0x4d, 0x42, 0x52,
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0x3a, 0x6f, 0x39, 0xd1, 0xfe, 0x66, 0x68, 0x6b, 0xa5, 0xe5, 0xe2, 0x97,
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0xac, 0x94, 0x6c, 0x76, 0x0b, 0x04
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};
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static const unsigned int thin_pack_len = 78;
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/*
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* Packfile with one object. It references an object which is not in the
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* packfile and has a corrupt length (states the deltified stream is 1 byte
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* long, where it is actually 6).
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*/
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static const unsigned char corrupt_thin_pack[] = {
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0x50, 0x41, 0x43, 0x4b, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x01,
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0x71, 0xe6, 0x8f, 0xe8, 0x12, 0x9b, 0x54, 0x6b, 0x10, 0x1a, 0xee, 0x95,
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0x10, 0xc5, 0x32, 0x8e, 0x7f, 0x21, 0xca, 0x1d, 0x18, 0x78, 0x9c, 0x63,
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0x62, 0x66, 0x4e, 0xcb, 0xcf, 0x07, 0x00, 0x02, 0xac, 0x01, 0x4d, 0x07,
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0x67, 0x03, 0xc5, 0x40, 0x99, 0x49, 0xb1, 0x3b, 0x7d, 0xae, 0x9b, 0x0e,
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0xdd, 0xde, 0xc6, 0x76, 0x43, 0x24, 0x64
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};
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static const unsigned int corrupt_thin_pack_len = 67;
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/*
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* Packfile with a missing trailer.
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*/
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static const unsigned char missing_trailer_pack[] = {
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0x50, 0x41, 0x43, 0x4b, 0x00, 0x00, 0x00, 0x03, 0x00, 0x50, 0xf4, 0x3b,
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};
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static const unsigned int missing_trailer_pack_len = 12;
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/*
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* Packfile that causes the packfile stream to open in a way in which it leaks
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* the stream reader.
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*/
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static const unsigned char leaky_pack[] = {
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0x50, 0x41, 0x43, 0x4b, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x03,
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0xf4, 0xbd, 0x51, 0x51, 0x51, 0x51, 0x51, 0x72, 0x65, 0x41, 0x4b, 0x63,
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0x5f, 0x64, 0x65, 0x70, 0x74, 0x68, 0xbd, 0x41, 0x4b
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};
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static const unsigned int leaky_pack_len = 33;
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/*
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* Packfile with a three objects. The first one is a tree referencing two blobs,
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* the second object is one of those blobs. The second blob is missing.
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*/
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unsigned char incomplete_pack[] = {
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0x50, 0x41, 0x43, 0x4b, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x02,
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0xae, 0x03, 0x78, 0x9c, 0x33, 0x34, 0x30, 0x30, 0x33, 0x31, 0x51, 0x48,
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0x4a, 0x2c, 0x62, 0x08, 0x17, 0x3b, 0x15, 0xd9, 0x7e, 0xfa, 0x67, 0x6d,
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0xf6, 0x56, 0x4f, 0x85, 0x7d, 0xcb, 0xd6, 0xde, 0x53, 0xd1, 0x6d, 0x7f,
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0x66, 0x08, 0x91, 0x4e, 0xcb, 0xcf, 0x67, 0x50, 0xad, 0x39, 0x9a, 0xa2,
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0xb3, 0x71, 0x41, 0xc8, 0x87, 0x9e, 0x13, 0xf6, 0xba, 0x53, 0xec, 0xc2,
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0xfe, 0xda, 0xed, 0x9b, 0x09, 0x00, 0xe8, 0xc8, 0x19, 0xab, 0x34, 0x78,
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0x9c, 0x4b, 0x4a, 0x2c, 0xe2, 0x02, 0x00, 0x03, 0x9d, 0x01, 0x40, 0x4b,
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0x72, 0xa2, 0x6f, 0xb6, 0x88, 0x2d, 0x6c, 0xa5, 0x07, 0xb2, 0xa5, 0x45,
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0xe8, 0xdb, 0xe6, 0x53, 0xb3, 0x52, 0xe2
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};
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unsigned int incomplete_pack_len = 115;
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static const unsigned char base_obj[] = { 07, 076 };
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static const unsigned int base_obj_len = 2;
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void test_pack_indexer__out_of_order(void)
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{
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git_indexer *idx = 0;
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git_transfer_progress stats = { 0 };
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cl_git_pass(git_indexer_new(&idx, ".", 0, NULL, NULL));
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cl_git_pass(git_indexer_append(
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idx, out_of_order_pack, out_of_order_pack_len, &stats));
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cl_git_pass(git_indexer_commit(idx, &stats));
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cl_assert_equal_i(stats.total_objects, 3);
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cl_assert_equal_i(stats.received_objects, 3);
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cl_assert_equal_i(stats.indexed_objects, 3);
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git_indexer_free(idx);
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}
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void test_pack_indexer__missing_trailer(void)
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{
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git_indexer *idx = 0;
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git_transfer_progress stats = { 0 };
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cl_git_pass(git_indexer_new(&idx, ".", 0, NULL, NULL));
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cl_git_pass(git_indexer_append(
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idx, missing_trailer_pack, missing_trailer_pack_len, &stats));
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cl_git_fail(git_indexer_commit(idx, &stats));
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cl_assert(git_error_last() != NULL);
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cl_assert_equal_i(git_error_last()->klass, GIT_ERROR_INDEXER);
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git_indexer_free(idx);
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}
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void test_pack_indexer__leaky(void)
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{
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git_indexer *idx = 0;
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git_transfer_progress stats = { 0 };
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cl_git_pass(git_indexer_new(&idx, ".", 0, NULL, NULL));
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cl_git_pass(git_indexer_append(
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idx, leaky_pack, leaky_pack_len, &stats));
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cl_git_fail(git_indexer_commit(idx, &stats));
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cl_assert(git_error_last() != NULL);
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cl_assert_equal_i(git_error_last()->klass, GIT_ERROR_INDEXER);
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git_indexer_free(idx);
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}
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void test_pack_indexer__fix_thin(void)
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{
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git_indexer *idx = NULL;
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git_transfer_progress stats = { 0 };
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git_repository *repo;
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git_odb *odb;
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git_oid id, should_id;
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cl_git_pass(git_repository_init(&repo, "thin.git", true));
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cl_git_pass(git_repository_odb(&odb, repo));
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/* Store the missing base into your ODB so the indexer can fix the pack */
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cl_git_pass(git_odb_write(&id, odb, base_obj, base_obj_len, GIT_OBJECT_BLOB));
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git_oid_fromstr(&should_id, "e68fe8129b546b101aee9510c5328e7f21ca1d18");
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cl_assert_equal_oid(&should_id, &id);
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cl_git_pass(git_indexer_new(&idx, ".", 0, odb, NULL));
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cl_git_pass(git_indexer_append(idx, thin_pack, thin_pack_len, &stats));
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cl_git_pass(git_indexer_commit(idx, &stats));
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cl_assert_equal_i(stats.total_objects, 2);
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cl_assert_equal_i(stats.received_objects, 2);
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cl_assert_equal_i(stats.indexed_objects, 2);
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cl_assert_equal_i(stats.local_objects, 1);
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git_oid_fromstr(&should_id, "fefdb2d740a3a6b6c03a0c7d6ce431c6d5810e13");
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cl_assert_equal_oid(&should_id, git_indexer_hash(idx));
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git_indexer_free(idx);
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git_odb_free(odb);
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git_repository_free(repo);
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/*
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* The pack's name/hash only tells us what objects there are,
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* so we need to go through the packfile again in order to
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* figure out whether we calculated the trailer correctly.
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*/
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{
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unsigned char buffer[128];
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int fd;
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ssize_t read;
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struct stat st;
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const char *name = "pack-fefdb2d740a3a6b6c03a0c7d6ce431c6d5810e13.pack";
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fd = p_open(name, O_RDONLY);
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cl_assert(fd != -1);
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cl_git_pass(p_stat(name, &st));
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cl_git_pass(git_indexer_new(&idx, ".", 0, NULL, NULL));
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read = p_read(fd, buffer, sizeof(buffer));
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cl_assert(read != -1);
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p_close(fd);
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cl_git_pass(git_indexer_append(idx, buffer, read, &stats));
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cl_git_pass(git_indexer_commit(idx, &stats));
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cl_assert_equal_i(stats.total_objects, 3);
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cl_assert_equal_i(stats.received_objects, 3);
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cl_assert_equal_i(stats.indexed_objects, 3);
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cl_assert_equal_i(stats.local_objects, 0);
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git_indexer_free(idx);
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}
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}
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void test_pack_indexer__corrupt_length(void)
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{
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git_indexer *idx = NULL;
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git_transfer_progress stats = { 0 };
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git_repository *repo;
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git_odb *odb;
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git_oid id, should_id;
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cl_git_pass(git_repository_init(&repo, "thin.git", true));
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cl_git_pass(git_repository_odb(&odb, repo));
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/* Store the missing base into your ODB so the indexer can fix the pack */
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cl_git_pass(git_odb_write(&id, odb, base_obj, base_obj_len, GIT_OBJECT_BLOB));
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git_oid_fromstr(&should_id, "e68fe8129b546b101aee9510c5328e7f21ca1d18");
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cl_assert_equal_oid(&should_id, &id);
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cl_git_pass(git_indexer_new(&idx, ".", 0, odb, NULL));
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cl_git_pass(git_indexer_append(
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idx, corrupt_thin_pack, corrupt_thin_pack_len, &stats));
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cl_git_fail(git_indexer_commit(idx, &stats));
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cl_assert(git_error_last() != NULL);
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cl_assert_equal_i(git_error_last()->klass, GIT_ERROR_ZLIB);
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git_indexer_free(idx);
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git_odb_free(odb);
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git_repository_free(repo);
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}
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void test_pack_indexer__incomplete_pack_fails_with_strict(void)
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{
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git_indexer_options opts = GIT_INDEXER_OPTIONS_INIT;
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git_indexer *idx = 0;
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git_transfer_progress stats = { 0 };
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opts.verify = 1;
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cl_git_pass(git_indexer_new(&idx, ".", 0, NULL, &opts));
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cl_git_pass(git_indexer_append(
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idx, incomplete_pack, incomplete_pack_len, &stats));
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cl_git_fail(git_indexer_commit(idx, &stats));
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cl_assert_equal_i(stats.total_objects, 2);
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cl_assert_equal_i(stats.received_objects, 2);
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cl_assert_equal_i(stats.indexed_objects, 2);
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git_indexer_free(idx);
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}
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void test_pack_indexer__out_of_order_with_connectivity_checks(void)
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{
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git_indexer_options opts = GIT_INDEXER_OPTIONS_INIT;
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git_indexer *idx = 0;
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git_transfer_progress stats = { 0 };
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opts.verify = 1;
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cl_git_pass(git_indexer_new(&idx, ".", 0, NULL, &opts));
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cl_git_pass(git_indexer_append(
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idx, out_of_order_pack, out_of_order_pack_len, &stats));
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cl_git_pass(git_indexer_commit(idx, &stats));
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cl_assert_equal_i(stats.total_objects, 3);
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cl_assert_equal_i(stats.received_objects, 3);
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cl_assert_equal_i(stats.indexed_objects, 3);
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git_indexer_free(idx);
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}
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static int find_tmp_file_recurs(void *opaque, git_buf *path)
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{
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int error = 0;
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git_buf *first_tmp_file = opaque;
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struct stat st;
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if ((error = p_lstat_posixly(path->ptr, &st)) < 0)
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return error;
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if (S_ISDIR(st.st_mode))
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return git_path_direach(path, 0, find_tmp_file_recurs, opaque);
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/* This is the template that's used in git_futils_mktmp. */
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if (strstr(git_buf_cstr(path), "_git2_") != NULL)
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return git_buf_sets(first_tmp_file, git_buf_cstr(path));
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return 0;
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}
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void test_pack_indexer__no_tmp_files(void)
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{
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git_indexer *idx = NULL;
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git_buf path = GIT_BUF_INIT;
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git_buf first_tmp_file = GIT_BUF_INIT;
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/* Precondition: there are no temporary files. */
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cl_git_pass(git_buf_sets(&path, clar_sandbox_path()));
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cl_git_pass(find_tmp_file_recurs(&first_tmp_file, &path));
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git_buf_dispose(&path);
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cl_assert(git_buf_len(&first_tmp_file) == 0);
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cl_git_pass(git_indexer_new(&idx, ".", 0, NULL, NULL));
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git_indexer_free(idx);
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cl_git_pass(git_buf_sets(&path, clar_sandbox_path()));
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cl_git_pass(find_tmp_file_recurs(&first_tmp_file, &path));
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git_buf_dispose(&path);
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cl_assert(git_buf_len(&first_tmp_file) == 0);
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git_buf_dispose(&first_tmp_file);
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}
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