openresty 整合阿里云 oss

目前阿里云官方并未提供lua版的sdk，在网上找了几个，感觉不是很理想，于是自己造了一个轮子，目前还是一个单车的轮子，只实现了部分功能，不过也能用了

废话不多说上代码

local oss = require "resty.oss"

local oss_config = {
    accessKey      =   "your accessKey";
    secretKey      =   "your secretKey";
    bucket      =   "your bucket",
    endpoint    =   "your oss endpoint" -- 例如：oss-cn-qingdao.aliyuncs.com
}

local client = oss.new(oss_config)
local url = client:put_object("123", "text/html", "123.json")
ngx.say(url)
client:delete_object('123.json')

client:put_bucket('test-bucket123')
client:put_bucket_acl('test-bucket123', 'private')
client:put_bucket_acl('test-bucket123', 'public-read')
client:delete_bucket('test-bucket123')

上面的例子是直接上传文件并指定内容，文件类型，文件名

真实场景，可能是客户端上传一个文件，然后在nginx获取到文件的内容，文件类型，然后自动生成一个文件名，再调用上面的put_object方法进行上传

文件上传模块可以用lua-resty-upload来处理

lua代码参考:

local upload = require "resty.upload"
local oss = require "resty.oss"

-- 获取上传的文件
function readFile()
    local chunk_size = 4096
    local form, err = upload:new(chunk_size)
    form:set_timeout(20000)
    local file = {}
    if not err then
        while true do
            local typ, res, err2 = form:read()
            if not typ then
                err = err2
                print("failed to read: ", err2)
                break
            end
            if typ == 'header' and res[1] == 'Content-Disposition' then
                local filename = string.match(res[2], 'filename="(.*)"')
                file.name = filename
            end
            if typ == 'header' and res[1] == 'Content-Type' then
                file['type'] = res[2]
            end
            if typ == 'body' and file then
                file[typ] = (file[typ] or '') .. res
            end
            if typ == "eof" then
                break
            end
        end
    end
    return file, err
end

local file, err = readFile()

local oss_config = {
    accessKey      =   "your accessKey";
    secretKey      =   "your secretKey";
    bucket      =   "your bucket",
    endpoint    =   "your oss endpoint" -- 例如：oss-cn-qingdao.aliyuncs.com
}

local client = oss.new(oss_config)
local url = client:put_object(file.body, file.type, file.name)
ngx.say(url)

前端代码参考

已实现方法

• put_object        上传文件

• delete_object     删除文件

• put_bucket        创建bucket

• put_bucket_acl    修改bucket权限

• delete_bucket     删除bucket

代码已上传github，连接：https://github.com/362228416/lua-resty-oss

更多openresty lua相关内容可以点击这里获取