105 lines
3.0 KiB
Lua
105 lines
3.0 KiB
Lua
-- 指定模块引用目录，否则无法加载同目录下的其他文件
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--package.path = package.path .. ';/usr/local/opt/openresty/nginx/scripts/?.lua';
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package.path = package.path .. ';<SCRIPT_PATH>/?.lua';
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-- Requires
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local uuid = require("lib.my_uuid")
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local cjson = require "cjson"
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local pl = require "pl.pretty"
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local http = require "resty.http"
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local verify = require('lib.jwt_verify')
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local get_wx_media = require("lib.wx_download")
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-- Verify token
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local httpc = http:new()
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local authHeader = ngx.req.get_headers().Authorization
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local sudoerToken = ngx.req.get_headers().HtySudoerToken
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verify(httpc, authHeader, sudoerToken)
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--uuid.seed()
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-- Get ngx var
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local file_dir = ngx.var.tmp_file_dir
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-- Read request body
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ngx.req.read_body()
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local req_body = cjson.decode(ngx.req.get_body_data())
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ngx.log(ngx.INFO, 'REQ_BODY -> ', ngx.req.get_body_data())
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local images = req_body["payload"]["images"]
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local image_origin = req_body["payload"]["image_origin"]
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-- Judge payload image origin
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if image_origin == "WX" then
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ngx.log(ngx.INFO, "IMAGE ORIGIN -> ", image_origin)
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elseif image_origin == "LOCAL" then
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ngx.log(ngx.INFO, "IMAGE ORIGIN -> ", image_origin)
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else
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image_origin = "LOCAL"
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ngx.log(ngx.INFO, "IMAGE ORIGIN default to LOCAL")
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end
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-- Judge payload images para length
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local len = table.getn(images)
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if len == 0 then
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ngx.status = 500
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ngx.log(ngx.ERR, "No images to combine!")
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return ;
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end
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-- If combine images from WX
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local wx_download_images = {}
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if image_origin == "WX" then
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for i = 1, len do
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ngx.log(ngx.INFO, "DOWNLOAD WX URL -> ", images[i])
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wx_download_images[i] = get_wx_media(httpc, images[i], cjson, pl);
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end
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end
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-- Prepare combined file name and path
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local combined_uuid = uuid.uuid()
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local output_filename = combined_uuid .. ".jpeg";
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local output_filepath = file_dir .. "/" .. output_filename
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local origin = {}
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-- 从 nginx 变量取
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local convert = ngx.var.convert
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if not convert then
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ngx.status = 500
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ngx.log(ngx.ERR, "ImageMagick NOT FOUND.")
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return
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end
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for i = 1, len do
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local incoming
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if image_origin == "WX" then
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ngx.log(ngx.INFO, "DOWNLOAD WX FILE -> ", wx_download_images[i])
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incoming = wx_download_images[i]
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elseif image_origin == "LOCAL" then
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ngx.log(ngx.INFO, "LOCAL FILE -> ", images[i])
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incoming = file_dir .. "/" .. images[i]
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else
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ngx.status = 400
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ngx.log(ngx.ERR, "COMBINE REQUEST PAYLOAD IMAGES ORIGIN NOT FOUND.")
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return
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end
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origin[i] = incoming .. ".png "
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local cmd = convert .. " -resize 642x1389 -strip -quality 75% " .. incoming .. " " .. origin[i]
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ngx.log(ngx.INFO, 'CMD RESIZE -> ', cmd)
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local handle = io.popen(cmd)
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local result = handle:read("*a")
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ngx.log(ngx.INFO, 'CMD RESIZE -> RESULT ', pl.dump(result))
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handle:close()
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end
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local cmd = convert .. " -append " .. table.concat(origin, " ") .. " " .. output_filepath
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ngx.log(ngx.INFO, 'CMD APPEND -> ', cmd)
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io.popen(cmd)
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ngx.say(output_filename)
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