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dami
2025-12-06 14:04:12 +08:00
parent 9b86a6ee33
commit 47102edfef
5 changed files with 59 additions and 15 deletions
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plugins/openresty/resty/obf/obf_v1.lua → plugins/openresty/resty/obf/bak/obf_v1.lua
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plugins/openresty/resty/obf/obf_v2.lua → plugins/openresty/resty/obf/bak/obf_v2.lua
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plugins/openresty/resty/obf/obf_v3.lua → plugins/openresty/resty/obf/bak/obf_v3.lua
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plugins/openresty/resty/obf/tpl_v2.lua → plugins/openresty/resty/obf/bak/tpl_v2.lua
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plugins/openresty/resty/obf/obf.lua
+59 -15
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@@ -15,7 +15,7 @@ local resty_str = require "resty.string"
local random = require "resty.random"
local lrucache = require "resty.lrucache"
local util = require "resty.obf.util"
local obf_cache = lrucache.new(4096)
local obf_cache = nil
local find = string.find
local byte = string.byte
@@ -106,18 +106,44 @@ function _M.obf_html()
if not ctx.obf_buffer then
ctx.obf_buffer = {}
ctx.obf_size = 0
ctx.obf_passthrough = false
end
if chunk and chunk ~= "" then
ctx.obf_buffer[#ctx.obf_buffer + 1] = chunk
ngx.arg[1] = nil
if ctx.obf_passthrough then
ngx.arg[1] = chunk
else
ctx.obf_buffer[#ctx.obf_buffer + 1] = chunk
ctx.obf_size = ctx.obf_size + #chunk
local sl = ngx.var.obf_skip_large
if sl then
local n = tonumber(sl) or 0
if n > 0 and ctx.obf_size > n then
ctx.obf_passthrough = true
ngx.arg[1] = table.concat(ctx.obf_buffer)
ctx.obf_buffer = nil
return
end
end
ngx.arg[1] = nil
end
end
if eof then
if ctx.obf_passthrough then
return
end
local prof = ngx.var.obf_prof
local t_all0 = ngx.now()
local content = table.concat(ctx.obf_buffer)
if find(content_type, "text/html") then
if find(content_type, "text/html", 1, true) then
if not obf_cache then
local entries = tonumber(ngx.var.obf_cache_entries) or 1024
obf_cache = lrucache.new(entries)
end
local var_rand = ngx.var.obf_rand
local var_b64 = ngx.var.obf_uint8_b64
local var_skip_large = ngx.var.obf_skip_large or ""
@@ -125,6 +151,9 @@ function _M.obf_html()
local cache_key = _M.get_cache_key()..html_debug..tostring(var_rand)..tostring(var_b64)..tostring(var_skip_large)..tostring(var_skip_small)
local cached = obf_cache and obf_cache:get(cache_key)
if cached then
if prof == "true" then
log(ngx.ERR, log_fmt("obf_prof cache_hit=1 size=%d total_ms=%.2f", #cached, (ngx.now()-t_all0)*1000))
end
ngx.arg[1] = cached
ctx.obf_buffer = nil
return
@@ -134,38 +163,53 @@ function _M.obf_html()
if var_skip then
local n = tonumber(var_skip) or 0
if n > 0 and #content > n then
ngx.arg[1] = content
ctx.obf_buffer = nil
return
end
end
local var_skip_s = ngx.var.obf_skip_small
if var_skip_s then
local ns = tonumber(var_skip_s) or 0
if ns > 0 and #content < ns then
if prof == "true" then
log(ngx.ERR, log_fmt("obf_prof skip_large=1 size=%d total_ms=%.2f", #content, (ngx.now()-t_all0)*1000))
end
ngx.arg[1] = content
ctx.obf_buffer = nil
return
end
end
local t_enc0 = ngx.now()
local content,key,iv,tag = _M.obf_encode(content)
local t_enc1 = ngx.now()
local t_ser0 = ngx.now()
local content_data = util.to_uint8array(content or "")
local iv_data = util.to_uint8array(iv or "")
local tag_data = util.to_uint8array(tag or "")
local key_data = util.to_uint8array(key or "")
local t_ser1 = ngx.now()
local t_tpl0 = ngx.now()
local html_data = tpl.content(content_data, iv_data, tag_data, key_data,html_debug)
html_data = util.obf_add_data(html_data)
local t_tpl1 = ngx.now()
if not (ngx.var.obf_rand == "false") then
local t_add0 = ngx.now()
html_data = util.obf_add_data(html_data)
local t_add1 = ngx.now()
if prof == "true" then
log(ngx.ERR, log_fmt("obf_prof add_ms=%.2f", (t_add1-t_add0)*1000))
end
end
local max_item = tonumber(ngx.var.obf_cache_item_max) or 0
if obf_cache then
obf_cache:set(cache_key, html_data, cache_timeout)
if max_item <= 0 or #html_data <= max_item then
obf_cache:set(cache_key, html_data, cache_timeout)
end
end
if prof == "true" then
log(ngx.ERR, log_fmt("obf_prof size=%d enc_ms=%.2f ser_ms=%.2f tpl_ms=%.2f total_ms=%.2f", #content, (t_enc1-t_enc0)*1000, (t_ser1-t_ser0)*1000, (t_tpl1-t_tpl0)*1000, (ngx.now()-t_all0)*1000))
end
ngx.arg[1] = html_data
end
ctx.obf_buffer = nil
ctx.obf_size = nil
ctx.obf_passthrough = nil
end
end