Title: Fix base directory while extracting insecure TAR files
Author: albertvillanova (MEMBER)
State: closed
Created: 2023-01-23T08:57:40Z

This PR fixes the extraction of insecure TAR files by changing the base path against which TAR members are compared:
- from: "."
- to: `output_path`

This PR also adds tests for extracting insecure TAR files.

Related to:
- #5441
- #5452

@stas00 please note this PR addresses just one of the issues you pointed out: the use of the cwd by the extractor. The other issues (actionable error messages, raise instead of log error) should be addressed in other PRs.

Comments:
_The documentation is not available anymore as the PR was closed or merged._

<details>
<summary>Show benchmarks</summary>

PyArrow==6.0.0

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.008215 / 0.011353 (-0.003138) | 0.004510 / 0.011008 (-0.006498) | 0.099270 / 0.038508 (0.060761) | 0.028682 / 0.023109 (0.005573) | 0.332726 / 0.275898 (0.056827) | 0.371025 / 0.323480 (0.047545) | 0.006665 / 0.007986 (-0.001320) | 0.003329 / 0.004328 (-0.001000) | 0.078509 / 0.004250 (0.074259) | 0.032388 / 0.037052 (-0.004664) | 0.348540 / 0.258489 (0.090051) | 0.382212 / 0.293841 (0.088371) | 0.033307 / 0.128546 (-0.095239) | 0.011642 / 0.075646 (-0.064004) | 0.322573 / 0.419271 (-0.096699) | 0.041297 / 0.043533 (-0.002236) | 0.322710 / 0.255139 (0.067571) | 0.361593 / 0.283200 (0.078394) | 0.082276 / 0.141683 (-0.059407) | 1.481932 / 1.452155 (0.029777) | 1.531677 / 1.492716 (0.038961) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.194964 / 0.018006 (0.176958) | 0.406002 / 0.000490 (0.405512) | 0.001015 / 0.000200 (0.000815) | 0.000075 / 0.000054 (0.000021) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.023317 / 0.037411 (-0.014095) | 0.097231 / 0.014526 (0.082705) | 0.103898 / 0.176557 (-0.072659) | 0.139864 / 0.737135 (-0.597271) | 0.106785 / 0.296338 (-0.189554) |

### Benchmark: benchmark_iterating.json

| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.419036 / 0.215209 (0.203827) | 4.193985 / 2.077655 (2.116330) | 1.879069 / 1.504120 (0.374949) | 1.675384 / 1.541195 (0.134190) | 1.696225 / 1.468490 (0.227735) | 0.695257 / 4.584777 (-3.889520) | 3.437971 / 3.745712 (-0.307741) | 2.656037 / 5.269862 (-2.613824) | 1.463320 / 4.565676 (-3.102356) | 0.082575 / 0.424275 (-0.341700) | 0.012593 / 0.007607 (0.004986) | 0.526643 / 0.226044 (0.300599) | 5.278366 / 2.268929 (3.009437) | 2.288106 / 55.444624 (-53.156518) | 1.954875 / 6.876477 (-4.921602) | 1.950641 / 2.142072 (-0.191431) | 0.808289 / 4.805227 (-3.996938) | 0.148790 / 6.500664 (-6.351875) | 0.064775 / 0.075469 (-0.010694) |

### Benchmark: benchmark_map_filter.json

| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.215219 / 1.841788 (-0.626569) | 13.551467 / 8.074308 (5.477159) | 13.841547 / 10.191392 (3.650155) | 0.153610 / 0.680424 (-0.526814) | 0.028308 / 0.534201 (-0.505893) | 0.397087 / 0.579283 (-0.182196) | 0.401724 / 0.434364 (-0.032640) | 0.458042 / 0.540337 (-0.082296) | 0.544955 / 1.386936 (-0.841981) |

</details>
PyArrow==latest

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.006321 / 0.011353 (-0.005032) | 0.004336 / 0.011008 (-0.006673) | 0.097196 / 0.038508 (0.058688) | 0.026933 / 0.023109 (0.003824) | 0.416520 / 0.275898 (0.140622) | 0.450703 / 0.323480 (0.127223) | 0.004831 / 0.007986 (-0.003155) | 0.003252 / 0.004328 (-0.001076) | 0.074981 / 0.004250 (0.070730) | 0.036136 / 0.037052 (-0.000917) | 0.423166 / 0.258489 (0.164677) | 0.460936 / 0.293841 (0.167095) | 0.031859 / 0.128546 (-0.096687) | 0.011500 / 0.075646 (-0.064146) | 0.318197 / 0.419271 (-0.101074) | 0.041472 / 0.043533 (-0.002061) | 0.419227 / 0.255139 (0.164088) | 0.444712 / 0.283200 (0.161512) | 0.088841 / 0.141683 (-0.052841) | 1.497237 / 1.452155 (0.045083) | 1.572111 / 1.492716 (0.079395) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.239261 / 0.018006 (0.221255) | 0.400358 / 0.000490 (0.399868) | 0.003460 / 0.000200 (0.003261) | 0.000078 / 0.000054 (0.000024) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.024016 / 0.037411 (-0.013395) | 0.098414 / 0.014526 (0.083888) | 0.107220 / 0.176557 (-0.069337) | 0.143538 / 0.737135 (-0.593598) | 0.108607 / 0.296338 (-0.187731) |

### Benchmark: benchmark_iterating.json

| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.473896 / 0.215209 (0.258687) | 4.740386 / 2.077655 (2.662731) | 2.458046 / 1.504120 (0.953926) | 2.260895 / 1.541195 (0.719700) | 2.280218 / 1.468490 (0.811728) | 0.694843 / 4.584777 (-3.889934) | 3.349795 / 3.745712 (-0.395917) | 1.846970 / 5.269862 (-3.422892) | 1.151481 / 4.565676 (-3.414195) | 0.082054 / 0.424275 (-0.342221) | 0.012664 / 0.007607 (0.005057) | 0.573400 / 0.226044 (0.347355) | 5.750648 / 2.268929 (3.481720) | 2.904257 / 55.444624 (-52.540367) | 2.555181 / 6.876477 (-4.321295) | 2.595830 / 2.142072 (0.453758) | 0.799580 / 4.805227 (-4.005647) | 0.151088 / 6.500664 (-6.349576) | 0.066639 / 0.075469 (-0.008831) |

### Benchmark: benchmark_map_filter.json

| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.251413 / 1.841788 (-0.590375) | 13.743368 / 8.074308 (5.669060) | 13.808729 / 10.191392 (3.617337) | 0.144765 / 0.680424 (-0.535659) | 0.016606 / 0.534201 (-0.517594) | 0.376503 / 0.579283 (-0.202780) | 0.381510 / 0.434364 (-0.052854) | 0.440295 / 0.540337 (-0.100043) | 0.524248 / 1.386936 (-0.862688) |

</details>
</details>

![](https://cml.dev/watermark.png#eea1226779993687845da5ecd264cf047e46a128 "CML watermark")


Thanks a lot, @albertvillanova - I validated that your fix solves the original problem!