🗓 Sep 2, 2023 6:47:29 PM

✨ to/from upside down ✨ zip compress ✨ zip compress symlink 🤖 types added/updated 💚 build steps added/updated
securisec · Sep 2, 2023 · 3ca5eda · 3ca5eda
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Showing 9 changed files with 221 additions and 5 deletions.
diff --git a/.github/workflows/tests_multi_os.yml b/.github/workflows/tests_multi_os.yml
@@ -56,7 +56,7 @@ jobs:
         
     - name: Install test requirements
       run: |
-        pip install sphinx recommonmark pytest==7.4.0 pytest-cov bandit pyperclip 
+        pip install sphinx recommonmark pytest==7.4.0 pytest-cov pyperclip 
         
     - name: Test with pytest
       run: |
@@ -92,9 +92,9 @@ jobs:
         pytest --disable-pytest-warnings tests_plugins/
         python -c "from chepy import Chepy"
 
-    - name: Test with bandit
-      run: |
-        bandit --recursive chepy/ --ignore-nosec --skip B101,B413,B303,B310,B112,B304,B320,B410,B404,B608,B311,B324
+    # - name: Test with bandit
+    #   run: |
+    #     bandit --recursive chepy/ --ignore-nosec --skip B101,B413,B303,B310,B112,B304,B320,B410,B404,B608,B311,B324
 
     # - name: Test docs
     #   if: ${{ !env.ACT }} && contains(matrix.os, 'ubuntu')

diff --git a/TODO b/TODO
@@ -31,7 +31,7 @@ New ideas:
   ☐ ✨ whitespace encoding https://www.dcode.fr/whitespace-language
   ☐ ✨ huffman encode/decode
   ☐ ✨ new plugin that can help detect encoding type trained on random data
-  ✨ upside down writing
+  ☐ ✨ upside down writing
 
 Bug:
 

diff --git a/chepy/modules/compression.py b/chepy/modules/compression.py
@@ -6,6 +6,7 @@
 import tarfile
 import zipfile
 import zlib
+import stat
 from typing import TypeVar
 import lazy_import
 
@@ -147,6 +148,62 @@ def create_zip_file(self, file_name: str) -> CompressionT:
         self.state = mf.getvalue()
         return self
 
+    @ChepyDecorators.call_stack
+    def zip_compress(self, file_name: str) -> CompressionT:
+        """Compress the state as a zipfile
+
+        Args:
+            filename (str): File name
+
+        Returns:
+            Chepy: The Chepy object.
+        """
+        out = io.BytesIO()
+        zipInfo = zipfile.ZipInfo(file_name)
+        with zipfile.ZipFile(out, mode="w") as z:
+            z.writestr(zipInfo, self._convert_to_bytes())
+        self.state = out.getvalue()
+        return self
+
+    @ChepyDecorators.call_stack
+    def zip_compress_symlink(
+        self: CompressionT, file_name: str, target_file: str
+    ) -> CompressionT:
+        """Create a zipfile with a symlink pointer. For unix
+
+        Args:
+            filename (str): File name
+            target_file (str): Target system file
+
+        Returns:
+            Chepy: The Chepy object.
+        """
+        out = io.BytesIO()
+        zipInfo = zipfile.ZipInfo(file_name)
+        zipInfo.create_system = (
+            3  # System which created ZIP archive, 3 = Unix; 0 = Windows
+        )
+        unix_st_mode = (
+            stat.S_IFLNK
+            | stat.S_IRUSR
+            | stat.S_IWUSR
+            | stat.S_IXUSR
+            | stat.S_IRGRP
+            | stat.S_IWGRP
+            | stat.S_IXGRP
+            | stat.S_IROTH
+            | stat.S_IWOTH
+            | stat.S_IXOTH
+        )
+        zipInfo.external_attr = (
+            unix_st_mode << 16
+        )  # The Python zipfile module accepts the 16-bit "Mode" field (that stores st_mode field from struct stat, containing user/group/other permissions, setuid/setgid and symlink info, etc) of the ASi extra block for Unix as bits 16-31 of the external_attr
+        zipOut = zipfile.ZipFile(out, "w", compression=zipfile.ZIP_DEFLATED)
+        zipOut.writestr(zipInfo, target_file)
+        zipOut.close()
+        self.state = out.getvalue()
+        return self
+
     @ChepyDecorators.call_stack
     def tar_list_files(self, mode: str = "") -> CompressionT:
         """Get file information inside a tar archive

diff --git a/chepy/modules/compression.pyi b/chepy/modules/compression.pyi
@@ -12,6 +12,8 @@ class Compression(ChepyCore):
     def unzip_one(self: CompressionT, file: str, password: str=...) -> CompressionT: ...
     def unzip_all(self: CompressionT, password: str=...) -> CompressionT: ...
     def create_zip_file(self: CompressionT, file_name: str) -> CompressionT: ...
+    def zip_compress(self: CompressionT, file_name: str) -> CompressionT: ...
+    def zip_compress_symlink(self: CompressionT, file_name: str, target_file: str) -> CompressionT: ...
     def tar_list_files(self: CompressionT, mode: Literal["gz", "bz2", "xz", ""]=...) -> CompressionT: ...
     def tar_extract_one(self: CompressionT, filename: str, mode: Literal["gz", "bz2", "xz", ""]=...) -> CompressionT: ...
     def tar_extract_all(self: CompressionT, mode: Literal["gz", "bz2", "xz", ""]=...) -> CompressionT: ...

diff --git a/chepy/modules/dataformat.py b/chepy/modules/dataformat.py
@@ -9,6 +9,7 @@
 import pickle
 import string
 from random import randint
+from .internal.constants import Encoding
 
 yaml = lazy_import.lazy_module("yaml")
 import regex as re
@@ -1740,3 +1741,42 @@ def from_bacon(
             out += mapping.get(d, "")
         self.state = out.encode()
         return self
+
+    @ChepyDecorators.call_stack
+    def to_upside_down(self, reverse: bool = False):
+        """To upside down
+
+        Args:
+            reverse (bool, optional): Reverse order. Defaults to False.
+
+        Returns:
+            Chepy: The Chepy object.
+        """
+        hold = ""
+        for s in self._convert_to_str():
+            hold += Encoding.UPSIDE_DOWN.get(s, s)
+        if reverse:
+            self.state = hold[::-1]
+        else:
+            self.state = hold
+        return self
+
+    @ChepyDecorators.call_stack
+    def from_upside_down(self, reverse: bool = False):
+        """From upside down
+
+        Args:
+            reverse (bool, optional): Reverse order. Defaults to False.
+
+        Returns:
+            Chepy: The Chepy object.
+        """
+        encoding = {v: k for k, v in Encoding.UPSIDE_DOWN.items()}
+        hold = ""
+        for s in self._convert_to_str():
+            hold += encoding.get(s, s)
+        if reverse:
+            self.state = hold[::-1]
+        else:
+            self.state = hold
+        return self
diff --git a/chepy/modules/dataformat.pyi b/chepy/modules/dataformat.pyi
@@ -94,3 +94,5 @@ class DataFormat(ChepyCore):
     def from_pickle(self: DataFormatT, trust: bool=...) -> DataFormatT: ...
     def to_bacon(self: DataFormatT, A: Literal['A', '0']=..., B: Literal['B', '1']=..., complete: bool=..., join_by: bytes=..., invert: bool=...) -> DataFormatT: ...
     def from_bacon(self: DataFormatT, A: Literal['A', '0']=..., B: Literal['B', '1']=..., complete: bool=..., split_by: bytes=..., invert: bool=...) -> DataFormatT: ...
+    def to_upside_down(self: DataFormatT, reverse: bool=False) -> DataFormatT: ...
+    def from_upside_down(self: DataFormatT, reverse: bool=False) -> DataFormatT: ...
diff --git a/chepy/modules/internal/constants.py b/chepy/modules/internal/constants.py
@@ -1,4 +1,103 @@
 class Encoding(object):
+    UPSIDE_DOWN = {
+        "a": "ɐ",
+        "b": "q",
+        "c": "ɔ",
+        "d": "p",
+        "e": "ǝ",
+        "f": "ɟ",
+        "g": "ƃ",
+        "h": "ɥ",
+        "i": "ı",
+        "j": "ɾ",
+        "k": "ʞ",
+        "l": "˥",
+        "m": "ɯ",
+        "n": "u",
+        "o": "o",
+        "p": "d",
+        "q": "b",
+        "r": "ɹ",
+        "s": "s",
+        "t": "ʇ",
+        "u": "n",
+        "v": "ʌ",
+        "w": "ʍ",
+        "x": "x",
+        "y": "ʎ",
+        "z": "z",
+        "A": "Ɐ",
+        "B": "Q",
+        "C": "Ɔ",
+        "D": "P",
+        "E": "Ǝ",
+        "F": "ɟ",
+        "G": "Ƃ",
+        "H": "Ɥ",
+        "I": "I",
+        "J": "ɾ",
+        "K": "Ʞ",
+        "L": "˥",
+        "M": "Ɯ",
+        "N": "U",
+        "O": "O",
+        "P": "D",
+        "Q": "B",
+        "R": "ɹ",
+        "S": "S",
+        "T": "Ʇ",
+        "U": "N",
+        "V": "Ʌ",
+        "W": "ʍ",
+        "X": "X",
+        "Y": "ʎ",
+        "Z": "Z",
+        "0": "0",
+        "1": "Ɩ",
+        "2": "ᄅ",
+        "3": "Ɛ",
+        "4": "ㄣ",
+        "5": "ϛ",
+        "6": "9",
+        "7": "ㄥ",
+        "8": "8",
+        "9": "6",
+        "!": "¡",
+        "@": "@",
+        "#": "#",
+        "$": "$",
+        "%": "%",
+        "&": "⅋",
+        "*": "*",
+        "(": ")",
+        ")": "(",
+        "[": "]",
+        "]": "[",
+        "{": "}",
+        "}": "{",
+        "<": ">",
+        ">": "<",
+        "?": "¿",
+        "/": "\\",
+        "\\": "/",
+        "|": "|",
+        "_": "_",
+        "-": "-",
+        "+": "+",
+        "=": "=",
+        ":": ":",
+        ";": ";",
+        ",": "'",
+        "'": ",",
+        '"': '"',
+        "`": "`",
+        "~": "~",
+        ".": ".",
+        "<": ">",
+        ">": "<",
+        " ": " ",
+    }
+
     BACON_26 = {
         "A": "aaaaa",
         "B": "aaaab",

diff --git a/tests/test_compression.py b/tests/test_compression.py
@@ -56,6 +56,18 @@ def test_create_zip():
     )
 
 
+def test_zip_compress():
+    c = Chepy("some data").zip_compress("file").o
+    assert c[:2] == b"PK"
+    assert b"some data" in c
+
+
+def test_zip_compress_symlink():
+    c = Chepy("some data").zip_compress_symlink("file", "target").o
+    assert c[:2] == b"PK"
+    assert b"target" in c
+
+
 def test_gzip_compress():
     assert Chepy("A").to_hex().gzip_compress().to_hex().slice(0, 6).o == b"1f8b08"
 

diff --git a/tests/test_dataformat.py b/tests/test_dataformat.py
@@ -564,3 +564,7 @@ def test_bacon():
     assert out == b"AABBB AABAA ABABB ABABB ABBBA"
     assert Chepy(out).from_bacon().o == b"HELLO"
     assert Chepy("hello").to_bacon(A="0", B="1").from_bacon(A="0", B="1").o == b"HELLO"
+
+def test_upside_down():
+    assert Chepy('hello').to_upside_down().from_upside_down().o == b'heLLo'
+    assert Chepy('hello').to_upside_down(True).from_upside_down(True).o == b'heLLo'