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View Code? Open in Web Editor NEWA reverse engineering tool for decompiling and disassembling the React Native Hermes bytecode
License: GNU Affero General Public License v3.0
A reverse engineering tool for decompiling and disassembling the React Native Hermes bytecode
License: GNU Affero General Public License v3.0
Hello,
I wanted to reach out and make you aware of a typo I noticed in the file README.md:
Line 74 in 7444ad2
The folder which holds the decompilation tools is currently "decompilation", not "decompiler". As such, the command could be updated as follows:
~/hermes-dec/decompilation/hbc_decompiler.py assets/index.android.bundle /tmp/my_output_file.js
A very small issue overall, but I figured it may be worth bringing up.
Thank you, and I appreciate the hard work spent developing this tool!
Add This ASAP!
Or tell a method how to recompile after edit ...
v90
Logs:
[...]
Address 256941: Line 17179891934 - Column 38654917786 - Statement 445715
Address 256946: Line 17179891934 - Column 38654917784 - Statement 445715
Address 256946: Line 19327375581 - Column 38654917789 - Statement 445715
Address 256926: Line 19327375581 - Column 42949885084 - Statement 445715
Address 256940: Line 19327375581 - Column 42949885115 - Statement 445715
Traceback (most recent call last):
File "/home/kali/.local/bin/hbc-file-parser", line 8, in <module>
sys.exit(main())
^^^^^^
File "/home/kali/.local/share/pipx/venvs/hermes-dec/lib/python3.11/site-packages/hermes_dec/parsers/hbc_file_parser.py", line 915, in main
print_debug_info(hbc_reader.sources_data_storage)
File "/home/kali/.local/share/pipx/venvs/hermes-dec/lib/python3.11/site-packages/hermes_dec/parsers/debug_info_parser.py", line 64, in print_debug_info
current_statement += statement_delta
TypeError: unsupported operand type(s) for +=: 'int' and 'NoneType'
Hello developers,
I would like to know if you have any option to return the code to index.android.boundle after changes in the hasm file ?
There's No Option To Re Assemble & Recompiler
Fix This
Tried hbctool to reassemble
Error:
assert os.path.exists(f"{path}/metadata.json"), f"metadata.json not found."
AssertionError: metadata.json not found
The Not
opcode should use the !
operator, meanwhile it uses the -
operator
hermes-dec/src/decompilation/pass2_transform_code.py
Lines 489 to 490 in 2bd5073
When u add Reassembler option? Or Tell A Method How To Reassemble? ๐ฅฒ
This disassembler function better than HBC TOOL.
The full error message is UnicodeEncodeError: 'charmap' codec can't encode character '\u2502' in position 68: character maps to <undefined>
which happens while printing instructions. As from the readme, you tested on the same version and it seems you have it worked. Any suggestions?
I've run ~/hermes-dec/parsers/hbc_file_parser.py file.js.hbc
and it seems, it always returns the following error
File "~/hermes-dec/parsers/hbc_file_parser.py", line 807, in <module>
hbc_reader.read_whole_file(file_descriptor)
File "~/hermes-dec/parsers/hbc_file_parser.py", line 763, in read_whole_file
self.read_header_from_buffer() # Defines self.header
File "~/hermes-dec/parsers/hbc_file_parser.py", line 488, in read_header_from_buffer
assert sha1(file_data[:-SHA1_NUM_BYTES]).digest() == file_data[-SHA1_NUM_BYTES:]
AssertionError
find
confirms it is Hermes JavaScript bytecode, version 90
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