木逸辰
36 lines
954 B
Lua
36 lines
954 B
Lua
local uuid = require "resty.jit-uuid"
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local cjson = require "cjson"
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uuid.seed()
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local file_dir = ngx.var.tmp_file_dir
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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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local data = req_body["data"]
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local combined = file_dir .. "/" .. uuid.generate_v4() .. ".jpeg";
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local len = table.getn(data)
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local origin = {}
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for i = 1, len do
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origin[i] = file_dir .. "/" .. data[i] .. " "
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end
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-- linux
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local magick = "/usr/local/ImageMagick/bin/magick"
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local tmp = io.open(magick,"r")
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if tmp == nil then
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-- mac os
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magick = "/usr/local/bin/magick"
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else
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io.close(tmp)
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end
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local result, _, code = os.execute(magick .. " convert -append " .. table.concat(origin, " ") .. " " .. combined)
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if result and code == 0 then
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local file = io.open(combined)
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local content = file:read("*all")
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file:close()
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os.remove(combined)
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ngx.say(content)
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else
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ngx.status = 500
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ngx.say("image combine failed.")
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end |