From bdde70ae5b4ce272946f1b7bcad3fcc1581f4bdc Mon Sep 17 00:00:00 2001
From: Gianni Ceccarelli <gianni.ceccarelli@broadbean.com>
Date: Thu, 22 Jun 2023 09:31:31 +0100
Subject: handles new claws encryption

---
 lib/Config/ClawsMail/Password.pm | 113 ---------------------------------------
 1 file changed, 113 deletions(-)
 delete mode 100644 lib/Config/ClawsMail/Password.pm

(limited to 'lib/Config/ClawsMail/Password.pm')

diff --git a/lib/Config/ClawsMail/Password.pm b/lib/Config/ClawsMail/Password.pm
deleted file mode 100644
index ec6f8af..0000000
--- a/lib/Config/ClawsMail/Password.pm
+++ /dev/null
@@ -1,113 +0,0 @@
-package Config::ClawsMail::Password;
-use strict;
-use warnings;
-# VERSION
-use Config::ClawsMail::Password::Inline 'C';
-use MIME::Base64;
-use namespace::clean -except => [qw(decrypt_password)];
-
-# ABSTRACT: Claws-Mail password decrypter
-
-sub cleartext_password {
-    my ($password) = @_;
-    return decrypt_password(decode_base64($password));
-}
-
-1;
-
-__DATA__
-__C__
-#include <memory.h>
-
-#define PASSCRYPT_KEY "passkey0"
-unsigned char crypt_cfb_iv[64];
-int crypt_cfb_blocksize = 8;	/* 8 for DES */
-
-static void crypt_unpack(unsigned char *a) {
-    int i, j;
-
-    for (i = 7; i >= 0; --i)
-        for (j = 7; j >= 0; --j)
-            a[(i << 3) + j] = (a[i] & (0x80 >> j)) != 0;
-}
-
-static void crypt_cfb_xor(
-    unsigned char *to,
-    const unsigned char *from,
-    unsigned len) {
-    unsigned i;
-    unsigned j;
-    unsigned char c;
-
-    for (i = 0; i < len; i++) {
-        c = 0;
-        for (j = 0; j < 8; j++)
-            c = (c << 1) | *from++;
-        *to++ ^= c;
-    }
-}
-
-static void crypt_cfb_shift(
-    unsigned char *to,
-    const unsigned char *from,
-    unsigned len) {
-    unsigned i;
-    unsigned j;
-    unsigned k;
-
-    if (len < crypt_cfb_blocksize) {
-        i = len * 8;
-        j = crypt_cfb_blocksize * 8;
-        for (k = i; k < j; k++) {
-            to[0] = to[i];
-            ++to;
-        }
-    }
-
-    for (i = 0; i < len; i++) {
-        j = *from++;
-        for (k = 0x80; k; k >>= 1)
-            *to++ = ((j & k) != 0);
-    }
-}
-
-static void crypt_cfb_buf(
-    const char key[8],
-    unsigned char *buf,
-    unsigned len,
-    unsigned chunksize,
-    int decrypt) {
-    unsigned char temp[64];
-
-    memcpy(temp, key, 8);
-    crypt_unpack(temp);
-    setkey((const char *) temp);
-    memset(temp, 0, sizeof(temp));
-
-    memset(crypt_cfb_iv, 0, sizeof(crypt_cfb_iv));
-
-    if (chunksize > crypt_cfb_blocksize)
-        chunksize = crypt_cfb_blocksize;
-
-    while (len) {
-        memcpy(temp, crypt_cfb_iv, sizeof(temp));
-        encrypt((char *) temp, 0);
-        if (chunksize > len)
-            chunksize = len;
-        if (decrypt)
-            crypt_cfb_shift(crypt_cfb_iv, buf, chunksize);
-        crypt_cfb_xor((unsigned char *) buf, temp, chunksize);
-        if (!decrypt)
-            crypt_cfb_shift(crypt_cfb_iv, buf, chunksize);
-        len -= chunksize;
-        buf += chunksize;
-    }
-}
-
-SV* decrypt_password(SV* password) {
-    size_t len = sv_len(password);
-    char *tmp = (char*)malloc(len);
-    memcpy(tmp,SvPVbyte(password,len),len);
-    crypt_cfb_buf(PASSCRYPT_KEY, tmp, len, 1, 1 );
-    return newSVpvn(tmp,len);
-}
-- 
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