Update 5 files

- /_tools/blogquine.py
- /_data/proxylist.yml
- /_layouts/default.html
- /deploy.sh
- /.readthedocs.yaml
master
mayx 2 hours ago
parent a89e95869e
commit 2036ee2c4f

@ -12,5 +12,5 @@ build:
- mkdir Mabbs
- curl -L -o Mabbs/README.md https://github.com/Mabbs/Mabbs/raw/main/README.md
- bundle exec jekyll build --destination $READTHEDOCS_OUTPUT/html
- tar czvf MayxBlog.tgz -C $READTHEDOCS_OUTPUT html
- mv MayxBlog.tgz $READTHEDOCS_OUTPUT/html
- python3 _tools/blogquine.py $READTHEDOCS_OUTPUT/html MayxBlog.7z
- mv MayxBlog.7z $READTHEDOCS_OUTPUT/html

@ -22,7 +22,6 @@ mirrors:
- https://mabbs.kinsta.page/
- https://mayx.codeberg.page/
- https://mayx.tildepages.org/
- https://mayx.pages.lain.la/
- https://mayx.4everland.app/
- https://mayx.readthedocs.io/
- https://mayx.sourceforge.io/

@ -98,7 +98,7 @@ layout: xslt_container
<li><a href="{{ site.github.tar_url }}">Download <strong>TAR Ball</strong></a></li>
<li><a href="{{ site.github.repository_url }}">View On <strong>GitHub</strong></a></li>
{% else %}
<li style="width: 270px; border-right: none;"><a href="/MayxBlog.tgz">Download <strong>TGZ File</strong></a></li>
<li style="width: 270px; border-right: none;"><a href="/MayxBlog.7z">Download <strong>7-Zip File</strong></a></li>
{% endif %}
</ul>
</header>

@ -0,0 +1,755 @@
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import argparse
import binascii
import lzma
import os
import struct
import sys
# ============================================================
# Part 1: 最小 LZMA1 range coder只做编码
#
# 设计目标:只实现 quine 构造需要的 tokenliteral / match / rep0-match /
# end-marker编码字节与历史内容无关track=False 时不维护输出历史),
# 这是"先算结构、后填数据"两阶段装配的基础。
# 参考Igor Pavlov 的 LZMA SDK (LzmaEnc.c / LzmaDec.c)。
# ============================================================
kNumBitModelTotalBits = 11
kBitModelTotal = 1 << kNumBitModelTotalBits # 2048
kNumMoveBits = 5
kTopValue = 1 << 24 # 0x1000000
kNumStates = 12
kNumLitStates = 7
kNumPosBitsMax = 4
kNumLenToPosStates = 4
kNumAlignBits = 4
kEndPosModelIndex = 14
kNumFullDistances = 1 << (kEndPosModelIndex >> 1) # 128
kMatchMinLen = 2
kNumLowLenBits = 3
kNumMidLenBits = 3
kNumHighLenBits = 8
kNumLowLenSymbols = 1 << kNumLowLenBits # 8
kNumMidLenSymbols = 1 << kNumMidLenBits # 8
kNumPosSlotBits = 6
PROB_INIT = kBitModelTotal >> 1 # 1024
class RangeEncoder:
"""LZMA 的区间编码器。low 是 64 位要容纳进位range 是 32 位。"""
def __init__(self):
self.low = 0
self.range = 0xFFFFFFFF
self.cache = 0
self.cache_size = 1 # 初值 1 -> 第一个输出字节恒为 0x00
self.buf = bytearray()
def _shift_low(self):
if (self.low & 0xFFFFFFFF) < 0xFF000000 or (self.low >> 32) != 0:
temp = self.cache
while True:
self.buf.append((temp + (self.low >> 32)) & 0xFF)
temp = 0xFF
self.cache_size -= 1
if self.cache_size == 0:
break
self.cache = (self.low >> 24) & 0xFF
self.cache_size += 1
# 注意C 里 `(UInt32)low << 8` 会截断回 32 位,必须照做,
# 否则 low 的高位会一直累积,进位位 (low>>32) 就不止 0/1 了。
self.low = ((self.low & 0xFFFFFFFF) << 8) & 0xFFFFFFFF
def encode_bit(self, probs, idx, bit):
p = probs[idx]
bound = (self.range >> kNumBitModelTotalBits) * p
if bit == 0:
self.range = bound
probs[idx] = p + ((kBitModelTotal - p) >> kNumMoveBits)
else:
self.low += bound
self.range -= bound
probs[idx] = p - (p >> kNumMoveBits)
while self.range < kTopValue:
self.range = (self.range << 8) & 0xFFFFFFFF
self._shift_low()
def encode_direct_bits(self, value, num_bits):
for i in range(num_bits - 1, -1, -1):
self.range >>= 1
if (value >> i) & 1:
self.low += self.range
while self.range < kTopValue:
self.range = (self.range << 8) & 0xFFFFFFFF
self._shift_low()
def bittree_encode(self, probs, off, num_bits, symbol):
"""普通位树MSB 优先,节点下标从 1 开始。"""
m = 1
for i in range(num_bits - 1, -1, -1):
bit = (symbol >> i) & 1
self.encode_bit(probs, off + m, bit)
m = (m << 1) | bit
def bittree_reverse_encode(self, probs, off, num_bits, symbol):
"""反向位树LSB 优先,用于 SpecPos / Align。"""
m = 1
for i in range(num_bits):
bit = symbol & 1
symbol >>= 1
self.encode_bit(probs, off + m, bit)
m = (m << 1) | bit
def finish(self):
for _ in range(5):
self._shift_low()
return bytes(self.buf)
def _pos_slot_and_bits(d):
"""把 0 基距离 d (=真实距离-1) 拆成 (posSlot, 低位数, 低位值)。"""
if d < 4:
return d, 0, 0
# posSlot >= 4 时numDirectBits=(slot>>1)-1, base=(2|(slot&1))<<numDirectBits
for slot in range(4, 64):
n = (slot >> 1) - 1
base = (2 | (slot & 1)) << n
if d < base + (1 << n):
return slot, n, d - base
raise ValueError("distance too large: %d" % d)
class LzmaEncoder:
def __init__(self, lc=3, lp=0, pb=2, track=False):
"""
track=True 时维护输出假历史literal/match 复制内容用于一般用途
quine 构造用 track=Falsematch 的编码字节只取决于 (dist,len,pos)
与历史内容无关可跳过 37MB 级假历史的逐字节复制
"""
self.lc, self.lp, self.pb = lc, lp, pb
self.track = track
self.pos_mask = (1 << pb) - 1
self.lp_mask = (1 << lp) - 1
self.rc = RangeEncoder()
self.pos = 0 # 已输出字节数
self.state = 0
self.prev_byte = 0
self.reps = [0, 0, 0, 0] # rep0..rep3存的是 0 基距离
self.out = bytearray()
# 概率模型
n = PROB_INIT
self.p_is_match = [n] * (kNumStates << kNumPosBitsMax)
self.p_is_rep = [n] * kNumStates
self.p_is_rep_g0 = [n] * kNumStates
self.p_is_rep_g1 = [n] * kNumStates
self.p_is_rep_g2 = [n] * kNumStates
self.p_rep0_long = [n] * (kNumStates << kNumPosBitsMax)
self.p_pos_slot = [n] * (kNumLenToPosStates << kNumPosSlotBits)
self.p_spec_pos = [n] * (kNumFullDistances - kEndPosModelIndex) # 114
self.p_align = [n] * (1 << kNumAlignBits)
self.p_len_choice = [n] * 2
self.p_len_low = [n] * (16 * kNumLowLenSymbols)
self.p_len_mid = [n] * (16 * kNumMidLenSymbols)
self.p_len_high = [n] * (1 << kNumHighLenBits)
self.p_rep_len_choice = [n] * 2
self.p_rep_len_low = [n] * (16 * kNumLowLenSymbols)
self.p_rep_len_mid = [n] * (16 * kNumMidLenSymbols)
self.p_rep_len_high = [n] * (1 << kNumHighLenBits)
self.p_lit = [n] * (0x300 << (lc + lp))
# ---------- 内部 ----------
@property
def pos_state(self):
return self.pos & self.pos_mask
def _encode_len(self, choice, low, mid, high, length):
"""choice 是 2 元素数组choice[0]=choice 位choice[1]=choice2 位。"""
ps = self.pos_state
l = length - kMatchMinLen
if l < kNumLowLenSymbols:
self.rc.encode_bit(choice, 0, 0)
self.rc.bittree_encode(low, ps << kNumLowLenBits, kNumLowLenBits, l)
else:
self.rc.encode_bit(choice, 0, 1)
l -= kNumLowLenSymbols
if l < kNumMidLenSymbols:
self.rc.encode_bit(choice, 1, 0)
self.rc.bittree_encode(mid, ps << kNumMidLenBits, kNumMidLenBits, l)
else:
self.rc.encode_bit(choice, 1, 1)
self.rc.bittree_encode(high, 0, kNumHighLenBits, l - kNumMidLenSymbols)
def _copy_out(self, dist, length):
"""track=True 时把 match 的输出复制进假历史。"""
src = len(self.out) - dist
for i in range(length):
self.out.append(self.out[src + i])
self.prev_byte = self.out[-1]
# ---------- 对外 token ----------
def literal(self, b):
if self.state >= kNumLitStates:
raise NotImplementedError("matched-literal 未实现quine 构造不需要)")
# 每个符号先编 isMatch 位0 表示这是 literal
ps = self.pos_state
self.rc.encode_bit(self.p_is_match, (self.state << kNumPosBitsMax) + ps, 0)
lit_state = ((self.pos & self.lp_mask) << self.lc) + (self.prev_byte >> (8 - self.lc))
self.rc.bittree_encode(self.p_lit, lit_state * 0x300, 8, b)
self.out.append(b)
self.prev_byte = b
self.pos += 1
# UpdateState_Literal
if self.state <= 3:
self.state = 0
elif self.state <= 9:
self.state -= 3
else:
self.state -= 6
def _write_dist(self, dist, lts):
d = dist - 1
slot, n, low_bits = _pos_slot_and_bits(d)
self.rc.bittree_encode(self.p_pos_slot, lts << kNumPosSlotBits,
kNumPosSlotBits, slot)
if slot >= 4:
if slot < kEndPosModelIndex:
base = (2 | (slot & 1)) << n
off = base - slot - 1
self.rc.bittree_reverse_encode(self.p_spec_pos, off, n, low_bits)
else:
self.rc.encode_direct_bits(low_bits >> kNumAlignBits, n - kNumAlignBits)
self.rc.bittree_reverse_encode(self.p_align, 0, kNumAlignBits,
low_bits & ((1 << kNumAlignBits) - 1))
return d
def match(self, dist, length):
assert kMatchMinLen <= length <= 273, length
ps = self.pos_state
self.rc.encode_bit(self.p_is_match, (self.state << kNumPosBitsMax) + ps, 1)
self.rc.encode_bit(self.p_is_rep, self.state, 0) # 非 rep
lts = min(length - kMatchMinLen, kNumLenToPosStates - 1)
self._encode_len(self.p_len_choice,
self.p_len_low, self.p_len_mid, self.p_len_high, length)
d = self._write_dist(dist, lts)
# 状态与 rep 链更新
self.state = 7 if self.state < kNumLitStates else 10
self.reps[3], self.reps[2], self.reps[1], self.reps[0] = \
self.reps[2], self.reps[1], self.reps[0], d
if self.track:
self._copy_out(dist, length)
self.pos += length
def rep_match(self, length, rep_idx=0):
assert kMatchMinLen <= length <= 273, length
ps = self.pos_state
self.rc.encode_bit(self.p_is_match, (self.state << kNumPosBitsMax) + ps, 1)
self.rc.encode_bit(self.p_is_rep, self.state, 1)
if rep_idx == 0:
self.rc.encode_bit(self.p_is_rep_g0, self.state, 0)
self.rc.encode_bit(self.p_rep0_long, (self.state << kNumPosBitsMax) + ps, 1)
else:
self.rc.encode_bit(self.p_is_rep_g0, self.state, 1)
if rep_idx == 1:
self.rc.encode_bit(self.p_is_rep_g1, self.state, 0)
else:
self.rc.encode_bit(self.p_is_rep_g1, self.state, 1)
self.rc.encode_bit(self.p_is_rep_g2, self.state, 0 if rep_idx == 2 else 1)
if rep_idx == 3:
self.reps[3] = self.reps[2]
self.reps[2] = self.reps[1]
self.reps[1] = self.reps[0]
self.reps[0] = self.reps[rep_idx]
self._encode_len(self.p_rep_len_choice,
self.p_rep_len_low, self.p_rep_len_mid, self.p_rep_len_high, length)
dist = self.reps[0] + 1
self.state = 8 if self.state < kNumLitStates else 11
if self.track:
self._copy_out(dist, length)
self.pos += length
def end(self):
"""LZMA 结束标记:编码一个 0 基距离为 0xFFFFFFFF 的 match。"""
ps = self.pos_state
self.rc.encode_bit(self.p_is_match, (self.state << kNumPosBitsMax) + ps, 1)
self.rc.encode_bit(self.p_is_rep, self.state, 0)
self._encode_len(self.p_len_choice,
self.p_len_low, self.p_len_mid, self.p_len_high, kMatchMinLen)
self._write_dist(0x100000000, 0)
self.state = 7 if self.state < kNumLitStates else 10
def finish(self):
return self.rc.finish()
# ============================================================
# Part 2: 7z 格式原语
# ============================================================
SIG = b"7z\xbc\xaf'\x1c"
VER = b"\x00\x04"
MAX_MATCH = 273 # LZMA1 单个 match 长度上限
def crc32(b, v=0):
return binascii.crc32(b, v) & 0xFFFFFFFF
def varint(v):
"""7z UINT64 变长编码:首字节高位连续 n 个 1 + 值的 (7-n) 个高位,再跟 n 字节 LE。"""
if v < 0x80:
return bytes([v])
for n in range(1, 9):
if v < (1 << (8 * n + 7 - n)):
break
else:
raise ValueError("varint too big")
first = ((0xFF << (8 - n)) & 0xFF) | ((v >> (8 * n)) & ((1 << (7 - n)) - 1))
return bytes([first]) + (v & ((1 << (8 * n)) - 1)).to_bytes(n, "little")
def store_hdr(payload_len, first=False):
"""LZMA2 uncompressed chunk 头3 字节,大端 size-1"""
assert 1 <= payload_len <= 65536
return bytes([0x01 if first else 0x02]) + (payload_len - 1).to_bytes(2, "big")
def matches_for(dist, total):
"""dist 固定、总长 total 的 token 序列:首个 match + 后续 rep0。
长度按 273 上限切分并避开"只剩 1 字节"rep0 最小长度为 2"""
assert total >= 2
toks = []
first = min(MAX_MATCH, total)
if total - first == 1:
first -= 1
toks.append(("m", dist, first))
total -= first
while total > 0:
l = min(MAX_MATCH, total)
if total - l == 1:
l -= 1
toks.append(("r0", l))
total -= l
return toks
# ============================================================
# Part 3: 多文件 7z quine 构造器
# ============================================================
PROPS_BYTE = 0x5D # lc=3, lp=0, pb=2
CHUNK = 65536 # LZMA2 单 chunk 解压上限
SEED_NOTE = ("\nMayx's Blog!").encode("utf-8")
def dict_prop_for(maxdist):
"""选最小的 LZMA2 dict prop 使字典 >= maxdist。"""
for p in range(41):
if (2 | (p & 1)) << (p // 2 + 11) >= maxdist:
return p, (2 | (p & 1)) << (p // 2 + 11)
raise ValueError("distance too large")
def lzma_chunk(tokens, out_pos):
"""编一个 LZMA chunk0xC0: state+props reset无 dict reset无 end marker
match token 的编码字节只取决于 (dist,len,pos)与历史内容无关track=False"""
enc = LzmaEncoder()
enc.pos = out_pos
total = 0
for t in tokens:
if t[0] == "m":
enc.match(t[1], t[2])
total += t[2]
else:
enc.rep_match(t[1], 0)
total += t[1]
data = enc.finish()
assert total - 1 < 65536 and len(data) - 1 < 65536
hdr = bytes([0xC0]) + (total - 1).to_bytes(2, "big") + \
(len(data) - 1).to_bytes(2, "big") + bytes([PROPS_BYTE])
return hdr + data, total
class BlogQuine:
def __init__(self, root, quine_name="MayxBlog.7z", seed_name="_quine_seed.bin"):
self.quine_name = quine_name
self.seed_name = seed_name
# walk_entries: walk 顺序(父先子后、同级 dirs 在前)的 (rel, is_dir)。
# 子流顺序 = 非空条目在此列表中的顺序,必须自始至终保持同一顺序。
self.walk_entries = []
self.files = [] # (relpath, data bytes),顺序 = walk_entries 中文件序
for dirpath, dirnames, filenames in os.walk(root):
dirnames.sort()
for dn in dirnames:
rel = os.path.relpath(os.path.join(dirpath, dn), root)
self.walk_entries.append((rel.replace(os.sep, "/"), True))
for fn in sorted(filenames):
p = os.path.join(dirpath, fn)
rel = os.path.relpath(p, root).replace(os.sep, "/")
with open(p, "rb") as fp:
data = fp.read()
self.walk_entries.append((rel.replace(os.sep, "/"), False))
self.files.append((rel.replace(os.sep, "/"), data))
self.dirs = [r for r, isd in self.walk_entries if isd]
self.content = b"".join(data for _, data in self.files)
def entries(self):
ent = [{"name": self.seed_name, "dir": False}]
ent += [{"name": r, "dir": isd} for r, isd in self.walk_entries]
ent.append({"name": self.quine_name, "dir": False})
return ent
# ---------- 7z header ----------
def build_header(self, n, total, d, entries, sub_sizes):
n_sub = len(sub_sizes)
N = len(entries)
h = bytearray()
h += b"\x01\x04" # kHeader, kMainStreamsInfo
h += b"\x06" + varint(0) + varint(1) + b"\x09" + varint(n) + b"\x00" # PackInfo
h += b"\x07" # UnpackInfo
h += b"\x0b" + varint(1) + b"\x00" # kFolder: 1, local
h += varint(1) + b"\x21\x21" + varint(1) + bytes([self.dict_prop])
h += b"\x0c" + varint(d + total) # kCodersUnpackSize
h += b"\x00" # end UnpackInfo
h += b"\x08" # SubStreamsInfo
h += b"\x0d" + varint(n_sub) # 子流数
h += b"\x09" + b"".join(varint(s) for s in sub_sizes[:-1]) # 前 n_sub-1 个大小
h += b"\x0a" + b"\x01" # kCRC: AllDefined
crc_base = len(h)
h += b"\x00" * (4 * n_sub) # CRC 槽quine 的待定点)
h += b"\x00\x00" # end SSI, end MainStreamsInfo
h += b"\x05" + varint(N) # FilesInfo
bits = bytearray((N + 7) // 8) # kEmptyStream 位域MSB 优先)
for i, e in enumerate(entries):
if e["dir"]:
bits[i // 8] |= 1 << (7 - i % 8)
h += b"\x0e" + varint(len(bits)) + bytes(bits)
names = bytearray(b"\x00") # kName: external=0
for e in entries:
names += e["name"].encode("utf-16-le") + b"\x00\x00"
h += b"\x11" + varint(len(names)) + bytes(names)
attrs = b"".join(struct.pack("<I", 0x10 if e["dir"] else 0x20)
for e in entries)
h += b"\x15" + varint(2 + len(attrs)) + b"\x01\x00" + attrs # kAttributes
h += b"\x00\x00" # end FilesInfo, end Header
return bytes(h), crc_base
# ---------- 结构计算 ----------
def layout(self, d_seed, maxdist_hint):
content_len = len(self.content)
d = d_seed + content_len
# C1 链k 个 uncompressed chunk载荷总长 d+35
Ls = []
rem = d + 35
while rem > CHUNK:
Ls.append(CHUNK)
rem -= CHUNK
Ls.append(rem)
assert Ls[-1] >= 2, "末 chunk 载荷 %d 太小,调整 d_seed" % Ls[-1]
k = len(Ls)
hdrA = store_hdr(CHUNK, first=False) # 0x02 FF FF
hdrB = store_hdr(Ls[-1], first=False) # 末 chunk 头(可能与 A 相同)
self.dict_prop, dict_size = dict_prop_for(maxdist_hint)
# 子流大小quine 的 total 在迭代后填seed, 各文件, quine
file_sizes = [len(data) for _, data in self.files]
T, h = 100, 100
for _ in range(30):
chunks = []
o, f = 0, 32
S = 0
for j, L in enumerate(Ls): # C1a..C1k
chunks.append({"kind": "store", "foff": f, "size": 3 + L,
"ooff": o, "olen": L, "first": j == 0,
"c1": True, "S": S})
o += L
f += 3 + L
S += L
assert o == d + 35
# repro复现 file[35 : 32+3k+d+35) = pay0 hdr1 pay1 ... hdr(k-1) pay(k-1)
S = 0
for j, L in enumerate(Ls):
if j > 0:
# chunk j 的 3 字节头:从 seed 开头样本复制
srcpos = 0 if (j < k - 1 or L == CHUNK) else 3
dist_h = (d + 35 + S + 3 * (j - 1)) - srcpos
hb, hu = lzma_chunk([("m", dist_h, 3)], o)
assert hu == 3
chunks.append({"kind": "lzma", "foff": f, "size": len(hb),
"ooff": o, "olen": hu, "bytes": hb})
o += hu
f += len(hb)
# chunk j 的载荷:从 W[S:S+L) 复制
cb, cu = lzma_chunk(matches_for(d + 35 + 3 * j, L), o)
assert cu == L
chunks.append({"kind": "lzma", "foff": f, "size": len(cb),
"ooff": o, "olen": cu, "bytes": cb})
o += cu
f += len(cb)
S += L
# gears: store(x)+copy(x) 把 slip 压到 <=16
while f - (o - d) > 16:
s = f - (o - d)
x = min(s + 3, CHUNK)
chunks.append({"kind": "store", "foff": f, "size": 3 + x,
"ooff": o, "olen": x})
o += x
f += 3 + x
cb, cu = lzma_chunk(matches_for(x, x), o)
chunks.append({"kind": "lzma", "foff": f, "size": len(cb),
"ooff": o, "olen": cu, "bytes": cb})
o += cu
f += len(cb)
# jump: 单 match 从 W[6:6+y)seed 里的种植串)复制,使 slip = -3
s = f - (o - d)
y = s + 17
for _ in range(10):
jb, ju = lzma_chunk([("m", o - 6, y)], o)
y2 = s + 3 + len(jb)
if y2 == y:
break
y = y2
assert ju == y and y2 == y, "jump 不动点失败"
assert y + 6 <= d_seed, "种植串 %d+6 超过 seed %d" % (y, d_seed)
chunks.append({"kind": "lzma", "foff": f, "size": len(jb),
"ooff": o, "olen": ju, "bytes": jb, "jump": True})
o += ju
f += len(jb)
# gadget: 真空 store(T) + match(T,T) + 结束标记
assert f == (o - d) - 3, "slip=%d 应为 -3" % (f - (o - d))
chunks.append({"kind": "store", "foff": f, "size": 3 + T,
"ooff": o, "olen": T, "vac": True})
f += 3 + T
o += T
gb, gu = lzma_chunk(matches_for(T, T), o)
assert gu == T
chunks.append({"kind": "lzma", "foff": f, "size": len(gb),
"ooff": o, "olen": gu, "bytes": gb, "gmatch": True})
f += len(gb)
o += gu
# LZMA2 流结束标记0x007z t 需要它确认流完整结束
chunks.append({"kind": "term", "foff": f, "size": 1,
"ooff": o, "olen": 0, "bytes": b"\x00"})
f += 1
n = f - 32
total = f + h
sub_sizes = [d_seed] + file_sizes + [total]
entries = self.entries()
hdr, crc_base = self.build_header(n, total, d, entries, sub_sizes)
h_new = len(hdr)
T_new = len(gb) + 1 + h_new
if T_new == T and h_new == h:
assert o == d + f + h, "输出终点 %d != d+total %d" % (o, d + f + h)
return {"d": d, "d_seed": d_seed, "k": k, "Ls": Ls,
"chunks": chunks, "header": hdr, "crc_base": crc_base,
"n": n, "total": f + h, "T": T, "h": h,
"hdrA": hdrA, "hdrB": hdrB, "jump_y": y,
"n_sub": len(sub_sizes), "sub_sizes": sub_sizes,
"entries": entries, "dict_size": dict_size}
T, h = T_new, h_new
raise RuntimeError("layout 不收敛")
# ---------- 装配 ----------
def assemble(self, lay):
F = bytearray(lay["total"])
d, T, h = lay["d"], lay["T"], lay["h"]
d_seed = lay["d_seed"]
hoff = lay["total"] - h
# pass A: sig + 所有非 payload 字节
F[0:6] = SIG
F[6:8] = VER
struct.pack_into("<Q", F, 12, lay["n"]) # NextHeaderOffset
struct.pack_into("<Q", F, 20, h) # NextHeaderSize
jump_c = vac_c = None
for c in lay["chunks"]:
if c["kind"] == "store":
F[c["foff"]:c["foff"] + 3] = store_hdr(c["olen"],
first=c.get("first", False))
if c.get("vac"):
vac_c = c
else:
F[c["foff"]:c["foff"] + c["size"]] = c["bytes"]
if c.get("jump"):
jump_c = c
F[hoff:hoff + h] = lay["header"]
assert jump_c and vac_c
# pass B: seed = hdrA ‖ hdrB ‖ 种植串 ‖ 填充
y = lay["jump_y"]
plant = bytes(F[jump_c["ooff"] - d: jump_c["ooff"] - d + y])
seed = bytearray(d_seed)
seed[0:3] = lay["hdrA"]
seed[3:6] = lay["hdrB"]
seed[6:6 + y] = plant
pad = (SEED_NOTE * (d_seed // len(SEED_NOTE) + 2))[:d_seed - 6 - y]
seed[6 + y:] = pad
# pass C: 各 store 的 payload
P = bytes(seed) + self.content + bytes(F[0:35]) # = W[0:d+35)
assert len(P) == d + 35
for c in lay["chunks"]:
if c["kind"] != "store":
continue
ooff, olen = c["ooff"], c["olen"]
if c.get("c1"):
F[c["foff"] + 3:c["foff"] + 3 + olen] = P[c["S"]:c["S"] + olen]
elif c.get("vac"):
fo = ooff - d
F[fo:fo + olen] = F[fo + olen:fo + 2 * olen]
else:
fo = ooff - d
F[c["foff"] + 3:c["foff"] + 3 + olen] = F[fo:fo + olen]
return F, bytes(seed)
# ---------- CRC 定点96x96 GF(2) ----------
def solve_crc(self, F, lay, seed):
T, h, d = lay["T"], lay["h"], lay["d"]
k, n_sub, crc_base = lay["k"], lay["n_sub"], lay["crc_base"]
hoff = lay["total"] - h
vout_f = lay["total"] - 2 * T
hcopy = vout_f + (T - h)
# 已知 CRCseed + 各文件quine 的是未知量 D
known = [crc32(seed)] + [crc32(data) for _, data in self.files]
assert len(known) == n_sub - 1
for i, e in enumerate(known):
struct.pack_into("<I", F, hoff + crc_base + 4 * i, e)
struct.pack_into("<I", F, hcopy + crc_base + 4 * i, e)
# 未知量 D N S各出现两处
dpos = crc_base + 4 * (n_sub - 1)
ncopy = 32 + 3 * k + d # C1k 载荷里 F[0:35) 副本起点
groups = [[hoff + dpos, hcopy + dpos],
[28, ncopy + 28],
[8, ncopy + 8]]
Fv = memoryview(F)
def targets():
return (crc32(Fv),
crc32(Fv[hoff:hoff + h]),
crc32(Fv[12:32]))
base = targets()
basevec = base[0] | (base[1] << 32) | (base[2] << 64)
cols = []
for g in range(3):
for kb in range(32):
poss = [p + kb // 8 for p in groups[g]]
bb = kb % 8
for p in poss:
F[p] ^= (1 << bb)
t = targets()
for p in poss:
F[p] ^= (1 << bb)
cols.append((t[0] ^ base[0]) | ((t[1] ^ base[1]) << 32)
| ((t[2] ^ base[2]) << 64))
# (I+A) x = basevec方程 i: x_i ^ sum_j A[i][j] x_j = base_i
eqs = []
for i in range(96):
coeff = 0
for j in range(96):
if (cols[j] >> i) & 1:
coeff |= 1 << j
coeff ^= 1 << i # 对角元 = 1 ^ A[i][i]
eqs.append([coeff, (basevec >> i) & 1])
for j in range(96):
p = next((i for i in range(j, 96) if (eqs[i][0] >> j) & 1), None)
if p is None:
raise RuntimeError("GF(2) 奇异 @bit%d" % j)
eqs[j], eqs[p] = eqs[p], eqs[j]
for i in range(96):
if i != j and ((eqs[i][0] >> j) & 1):
eqs[i][0] ^= eqs[j][0]
eqs[i][1] ^= eqs[j][1]
x = 0
for i in range(96):
assert eqs[i][0] == (1 << i)
if eqs[i][1]:
x |= 1 << i
vals = [x & 0xFFFFFFFF, (x >> 32) & 0xFFFFFFFF, (x >> 64) & 0xFFFFFFFF]
for g in range(3):
for p in groups[g]:
F[p:p + 4] = struct.pack("<I", vals[g])
t = targets()
assert t == tuple(vals), "CRC 定点失败: %s != %s" % (t, vals)
return vals, known
def build(self, maxdist_hint=None):
if maxdist_hint is None:
# 最大距离 ~ jump 的 dist ≈ 2d + repro/gear 余量
maxdist_hint = 2 * (len(self.content) + 128) + (1 << 21)
d_seed = 64
last_err = None
for _ in range(80):
d = d_seed + len(self.content)
if (d + 35) % CHUNK == 1: # L_k = 1 无法编 match
d_seed += 1
continue
try:
lay = self.layout(d_seed, maxdist_hint)
F, seed = self.assemble(lay)
crcs, known = self.solve_crc(F, lay, seed)
return bytes(F), lay, seed, (crcs, known)
except (RuntimeError, AssertionError) as e:
last_err = e
d_seed += 1
raise RuntimeError("build 多次失败: %s" % last_err)
def verify(F, lay, seed, files, quine_name):
"""解码 LZMA2 流并逐文件校验。"""
d, d_seed = lay["d"], lay["d_seed"]
dec = lzma.LZMADecompressor(
format=lzma.FORMAT_RAW,
filters=[{"id": lzma.FILTER_LZMA2, "dict_size": lay["dict_size"]}])
W = dec.decompress(F[32:32 + lay["n"]])
assert len(W) == d + len(F), "|W|=%d 期望 %d" % (len(W), d + len(F))
ok = True
if W[:d_seed] != seed:
print("[verify] seed 不匹配")
ok = False
pos = d_seed
for rel, data in files:
if W[pos:pos + len(data)] != data:
print("[verify] 文件不匹配:", rel)
ok = False
pos += len(data)
assert pos == d
if W[d:] != F:
print("[verify] quine 自复制不匹配")
ok = False
print("[verify] 自解码: |W|=%d, seed/文件/quine 全部匹配: %s" % (len(W), ok))
return ok
def main():
ap = argparse.ArgumentParser(description="多文件 7z quine 生成器")
ap.add_argument("srcdir")
ap.add_argument("output")
ap.add_argument("--quine-name", default=None,
help="归档内 quine 文件名(默认 = output 的文件名)")
ap.add_argument("--seed-name", default=".this_is_mayx_blog")
ap.add_argument("--quine-dir", default="",
help="quine 在归档内所在的目录(如 public默认根目录")
args = ap.parse_args()
quine_name = args.quine_name or os.path.basename(args.output)
if args.quine_dir:
# 归档内路径用 / 分隔(与 walk 收集的目录条目一致)
quine_dir = args.quine_dir.strip("/")
quine_name = quine_dir + "/" + quine_name
bq = BlogQuine(args.srcdir, quine_name=quine_name, seed_name=args.seed_name)
print("[blogquine] %d 个文件, %d 个目录, 内容 %d 字节"
% (len(bq.files), len(bq.dirs), len(bq.content)))
F, lay, seed, (crcs, known) = bq.build()
with open(args.output, "wb") as fp:
fp.write(F)
print("[blogquine] written %s: %d 字节 (d=%d, k=%d chunks, n=%d, h=%d, T=%d)"
% (args.output, len(F), lay["d"], lay["k"], lay["n"], lay["h"], lay["T"]))
print("[blogquine] CRC 定点: D(quine)=%08x N(hdr)=%08x S(sig)=%08x" % tuple(crcs))
ok = verify(F, lay, seed, bq.files, quine_name)
sys.exit(0 if ok else 1)
if __name__ == "__main__":
main()

@ -2,5 +2,5 @@
mkdir Mabbs
curl -L -o Mabbs/README.md https://github.com/Mabbs/Mabbs/raw/main/README.md
bundle exec jekyll build -d public
tar czvf MayxBlog.tgz public/
mv MayxBlog.tgz public/
python3 _tools/blogquine.py public MayxBlog.7z
mv MayxBlog.7z public/

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