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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.

(cherry picked from commit 08b4383e3f)
This commit is contained in:
Rémi Verschelde 2021-05-14 11:19:04 +02:00
parent fac2e5dc67
commit a00ef0d27b
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GPG key ID: C3336907360768E1
1 changed files with 10 additions and 7 deletions
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core/SCsub
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@ -14,25 +14,28 @@ 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"
if "SCRIPT_AES256_ENCRYPTION_KEY" in os.environ:
e = os.environ["SCRIPT_AES256_ENCRYPTION_KEY"]
txt = ""
key = os.environ["SCRIPT_AES256_ENCRYPTION_KEY"]
ec_valid = True
if len(e) != 64:
if len(key) != 64:
ec_valid = False
else:
txt = ""
for i in range(len(e) >> 1):
if i > 0:
txt += ","
txts = "0x" + e[i * 2 : i * 2 + 2]
txts = "0x" + key[i * 2 : i * 2 + 2]
try:
int(txts, 16)
except Exception:
ec_valid = False
txt += txts
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("Invalid AES256 encryption key, not 64 bits hex: " + e)
print("Error: Invalid AES256 encryption key, not 64 hexadecimal characters: '" + key + "'.")
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
with open("script_encryption_key.gen.cpp", "w") as f: