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SCons: Abort if SCRIPT_AES256_ENCRYPTION_KEY is invalid

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Helps users figure out that something is wrong if they did define this
environment variable and it turns out being ignored.
This commit is contained in:
Rémi Verschelde 2021-05-14 11:19:04 +02:00
parent 99626d5b57
commit 08b4383e3f
No known key found for this signature in database
GPG Key ID: C3336907360768E1
1 changed files with 10 additions and 7 deletions
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core/SCsub
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@ -12,25 +12,28 @@ import os
txt = "0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0" txt = "0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0"
if "SCRIPT_AES256_ENCRYPTION_KEY" in os.environ: if "SCRIPT_AES256_ENCRYPTION_KEY" in os.environ:
e = os.environ["SCRIPT_AES256_ENCRYPTION_KEY"] key = os.environ["SCRIPT_AES256_ENCRYPTION_KEY"]
txt = ""
ec_valid = True ec_valid = True
if len(e) != 64: if len(key) != 64:
ec_valid = False ec_valid = False
else: else:
txt = ""
for i in range(len(e) >> 1): for i in range(len(e) >> 1):
if i > 0: if i > 0:
txt += "," txt += ","
txts = "0x" + e[i * 2 : i * 2 + 2] txts = "0x" + key[i * 2 : i * 2 + 2]
try: try:
int(txts, 16) int(txts, 16)
except Exception: except Exception:
ec_valid = False ec_valid = False
txt += txts txt += txts
if not ec_valid: if not ec_valid:
txt = "0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0" print("Error: Invalid AES256 encryption key, not 64 hexadecimal characters: '" + key + "'.")
print("Invalid AES256 encryption key, not 64 bits hex: " + e) print(
"Unset 'SCRIPT_AES256_ENCRYPTION_KEY' in your environment "
"or make sure that it contains exactly 64 hexadecimal characters."
)
Exit(255)
# NOTE: It is safe to generate this file here, since this is still executed serially # NOTE: It is safe to generate this file here, since this is still executed serially
with open("script_encryption_key.gen.cpp", "w") as f: with open("script_encryption_key.gen.cpp", "w") as f: