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httpplus.lua 24.58 KB
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Wendal 提交于 2025-12-08 16:22 +08:00 . change: httpplus,优化等待逻辑和日志输出
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--[[
@module httpplus
@summary http库的补充
@version 1.0
@date 2023.11.23
@author wendal
@demo httpplus
@tag LUAT_USE_NETWORK
@usage
-- 本库支持的功能有:
-- 1. 大文件上传的问题,不限大小
-- 2. 任意长度的header设置
-- 3. 任意长度的body设置
-- 4. 鉴权URL自动识别
-- 5. body使用zbuff返回,可直接传输给uart等库
-- 与http库的差异
-- 1. 不支持文件下载
-- 2. 不支持fota
-- 支持 http 1.0 和 http 1.1, 不支持http2.0
-- 支持 GET/POST/PUT/DELETE/HEAD 等常用方法,也支持自定义method
-- 支持 HTTP 和 HTTPS 协议
-- 支持 IPv4 和 IPv6
-- 支持 HTTP 鉴权
-- 支持 multipart/form-data 上传文件和表单
-- 支持 application/x-www-form-urlencoded 上传表单
-- 支持 application/json 上传json数据
-- 支持 自定义 body 上传任意数据
-- 支持 自定义 headers
-- 支持 大文件上传,不限大小
-- 支持 zbuff 作为 body 上传和响应返回
-- 支持 bodyfile 直接把文件内容作为body上传
-- 支持 上传时使用自定义缓冲区, 2025.9.25 新增
]]
local httpplus = {}
local TAG = "httpplus"
local function http_opts_parse(opts)
if not opts then
log.error(TAG, "opts不能为nil")
return -100, "opts不能为nil"
end
if not opts.url or #opts.url < 5 then
log.error(TAG, "URL不存在或者太短了", url)
return -100, "URL不存在或者太短了"
end
if not opts.headers then
opts.headers = {}
end
if opts.debug or httpplus.debug then
if not opts.log then
opts.log = log.debug
end
else
opts.log = function()
-- log.info(TAG, "无日志")
end
end
-- 解析url
-- 先判断协议是否加密
local is_ssl = false
local tmp = ""
if opts.url:startsWith("https://") then
is_ssl = true
tmp = opts.url:sub(9)
elseif opts.url:startsWith("http://") then
tmp = opts.url:sub(8)
else
tmp = opts.url
end
-- log.info("http分解阶段1", is_ssl, tmp)
-- 然后判断host段
local uri = ""
local host = ""
local port = 0
if tmp:find("/") then
uri = tmp:sub((tmp:find("/"))) -- 注意find会返回多个值
tmp = tmp:sub(1, tmp:find("/") - 1)
else
uri = "/"
end
-- log.info("http分解阶段2", is_ssl, tmp, uri)
if tmp == nil or #tmp == 0 then
log.error(TAG, "非法的URL", url)
return -101, "非法的URL"
end
-- 有无鉴权信息
if tmp:find("@") then
local auth = tmp:sub(1, tmp:find("@") - 1)
if not opts.headers["Authorization"] then
opts.headers["Authorization"] = "Basic " .. auth:toBase64()
end
-- log.info("http鉴权信息", auth, opts.headers["Authorization"])
tmp = tmp:sub(tmp:find("@") + 1)
end
-- 解析端口
if tmp:find(":") then
host = tmp:sub(1, tmp:find(":") - 1)
port = tmp:sub(tmp:find(":") + 1)
port = tonumber(port)
else
host = tmp
end
if not port or port < 1 then
if is_ssl then
port = 443
else
port = 80
end
end
-- 收尾工作
if not opts.headers["Host"] then
opts.headers["Host"] = string.format("%s:%d", host, port)
end
-- Connection 必须关闭
opts.headers["Connection"] = "Close"
-- 复位一些变量,免得判断出错
opts.is_closed = nil
opts.body_len = 0
-- multipart需要boundary
local boundary = "------------------------16ef6e68ef" .. tostring(os.time())
opts.boundary = boundary
opts.mp = {}
if opts.files then
-- 强制设置为true
opts.multipart = true
end
-- 表单数据
if opts.forms then
if opts.multipart then
for kk, vv in pairs(opts.forms) do
local tmp = string.format("--%s\r\nContent-Disposition: form-data; name=\"%s\"\r\n\r\n", boundary, kk)
table.insert(opts.mp, {vv, tmp, "form"})
opts.body_len = opts.body_len + #tmp + #vv + 2
-- log.info("当前body长度", opts.body_len, "数据长度", #vv)
end
else
if not opts.headers["Content-Type"] then
opts.headers["Content-Type"] = "application/x-www-form-urlencoded;charset=UTF-8"
end
local buff = zbuff.create(120)
for kk, vv in pairs(opts.forms) do
buff:copy(nil, kk)
buff:copy(nil, "=")
buff:copy(nil, string.urlEncode(tostring(vv)))
buff:copy(nil, "&")
end
if buff:used() > 0 then
buff:del(-1, 1)
opts.body = buff
opts.body_len = buff:used()
opts.log(TAG, "普通表单", opts.body)
end
end
end
if opts.files then
-- 强制设置为true
opts.multipart = true
local contentType =
{
txt = "text/plain", -- 文本
jpg = "image/jpeg", -- JPG 格式图片
jpeg = "image/jpeg", -- JPEG 格式图片
png = "image/png", -- PNG 格式图片
gif = "image/gif", -- GIF 格式图片
html = "image/html", -- HTML
json = "application/json", -- JSON
mp4 = "video/mp4", -- MP4 格式视频
mp3 = "audio/mp3", -- MP3 格式音频
webm = "video/webm", -- WebM 格式视频
}
for kk, vv in pairs(opts.files) do
local ct = contentType[vv:match("%.(%w+)$")] or "application/octet-stream"
local fname = vv:match("[^%/]+%w$")
local tmp = string.format("--%s\r\nContent-Disposition: form-data; name=\"%s\"; filename=\"%s\"\r\nContent-Type: %s\r\n\r\n", boundary, kk, fname, ct)
-- log.info("文件传输头", tmp)
table.insert(opts.mp, {vv, tmp, "file"})
opts.body_len = opts.body_len + #tmp + io.fileSize(vv) + 2
-- log.info("当前body长度", opts.body_len, "文件长度", io.fileSize(vv), fname, ct)
end
end
-- 如果multipart模式
if opts.multipart then
-- 如果没主动设置body, 那么补个结尾
if not opts.body then
opts.body_len = opts.body_len + #boundary + 2 + 2 + 2
end
-- Content-Type没设置? 那就设置一下
if not opts.headers["Content-Type"] then
opts.headers["Content-Type"] = "multipart/form-data; boundary="..boundary
end
end
-- 直接设置bodyfile
if opts.bodyfile then
local fd = io.open(opts.bodyfile, "rb")
if not fd then
log.error("httpplus", "bodyfile失败,文件不存在", opts.bodyfile)
return -104, "bodyfile失败,文件不存在"
end
fd:close()
opts.body_len = io.fileSize(opts.bodyfile)
end
-- 有设置body, 而且没设置长度
if opts.body and (not opts.body_len or opts.body_len == 0) then
-- body是zbuff的情况
if type(opts.body) == "userdata" then
opts.body_len = opts.body:used()
-- body是json的情况
elseif type(opts.body) == "table" then
opts.body = json.encode(opts.body, "7f")
if opts.body then
opts.body_len = #opts.body
if not opts.headers["Content-Type"] then
opts.headers["Content-Type"] = "application/json;charset=UTF-8"
opts.log(TAG, "JSON", opts.body)
end
end
-- 其他情况就只能当文本了
else
opts.body = tostring(opts.body)
opts.body_len = #opts.body
end
end
-- 一定要设置Content-Length,而且强制覆盖客户自定义的值
-- opts.body_len = opts.body_len or 0
opts.headers["Content-Length"] = tostring(opts.body_len or 0)
-- 如果没设置method, 自动补齐
if not opts.method or #opts.method == 0 then
if opts.body_len > 0 then
opts.method = "POST"
else
opts.method = "GET"
end
else
-- 确保一定是大写字母
opts.method = opts.method:upper()
end
if opts.debug then
opts.log(TAG, is_ssl, host, port, uri, json.encode(opts.headers))
end
-- 把剩余的属性设置好
opts.host = host
opts.port = port
opts.uri = uri
opts.is_ssl = is_ssl
if not opts.timeout or opts.timeout == 0 then
opts.timeout = 30
end
return -- 成功完成,不需要返回值
end
local function zbuff_find(buff, str)
-- log.info("zbuff查找", buff:used(), #str)
if buff:used() < #str then
return
end
local maxoff = buff:used()
maxoff = maxoff - #str
local tmp = zbuff.create(#str)
tmp:write(str)
-- log.info("tmp数据", tmp:query():toHex())
for i = 0, maxoff, 1 do
local flag = true
for j = 0, #str - 1, 1 do
-- log.info("对比", i, j, string.char(buff[i+j]):toHex(), string.char(tmp[j]):toHex(), buff[i+j] ~= tmp[j])
if buff[i+j] ~= tmp[j] then
flag = false
break
end
end
if flag then
return i
end
end
end
local function resp_parse(opts)
-- log.info("这里--------")
local header_offset = zbuff_find(opts.rx_buff, "\r\n\r\n")
-- log.info("头部偏移量", header_offset)
if not header_offset then
log.warn(TAG, "没有检测到http响应头部,非法响应")
opts.resp_code = -198
return
end
local state_line_offset = zbuff_find(opts.rx_buff, "\r\n")
local state_line = opts.rx_buff:query(0, state_line_offset)
local tmp = state_line:split(" ")
if not tmp or #tmp < 2 then
log.warn(TAG, "非法的响应行", state_line)
opts.resp_code = -197
return
end
local code = tonumber(tmp[2])
if not code then
log.warn(TAG, "非法的响应码", tmp[2])
opts.resp_code = -196
return
end
opts.resp_code = code
opts.resp = {
headers = {}
}
opts.log(TAG, "state code", code)
-- TODO 解析header和body
opts.rx_buff:del(0, state_line_offset + 2)
-- opts.log(TAG, "剩余的响应体", opts.rx_buff:query())
-- 解析headers
while 1 do
local offset = zbuff_find(opts.rx_buff, "\r\n")
if not offset then
log.warn(TAG, "不合法的剩余headers", opts.rx_buff:query())
break
end
if offset == 0 then
-- header的最后一个空行
opts.rx_buff:del(0, 2)
break
end
local line = opts.rx_buff:query(0, offset)
opts.rx_buff:del(0, offset + 2)
local tmp2 = line:split(":")
opts.log(TAG, tmp2[1]:trim(), tmp2[2]:trim())
opts.resp.headers[tmp2[1]:trim()] = tmp2[2]:trim()
end
-- if opts.resp_code < 299 then
-- 解析body
-- 有Content-Length就好办
if opts.resp.headers["Content-Length"] then
opts.log(TAG, "有Content-Length", opts.resp.headers["Content-Length"])
opts.resp.body = opts.rx_buff
elseif opts.resp.headers["Transfer-Encoding"] == "chunked" then
-- log.info(TAG, "数据是chunked编码", opts.rx_buff[0], opts.rx_buff[1])
-- log.info(TAG, "数据是chunked编码", opts.rx_buff:query(0, 4):toHex())
local coffset = 0
local crun = true
while crun and coffset < opts.rx_buff:used() do
-- 从当前offset读取长度, 长度总不会超过8字节吧?
local flag = true
-- local coffset = zbuff_find(opts.rx_buff, "\r\n")
-- if not coffset then
-- end
for i = 1, 8, 1 do
if opts.rx_buff[coffset+i] == 0x0D and opts.rx_buff[coffset+i+1] == 0x0A then
local ctmp = opts.rx_buff:query(coffset, i)
-- opts.log(TAG, "chunked分片长度", ctmp, ctmp:toHex())
local clen = tonumber(ctmp, 16)
-- opts.log(TAG, "chunked分片长度2", clen)
if clen == nil or clen == 0 then
-- 末尾了
opts.rx_buff:resize(coffset)
crun = false
else
-- 先删除chunked块
opts.rx_buff:del(coffset, i+2)
coffset = coffset + clen
end
flag = false
break
end
end
-- 肯定能搜到chunked
if flag then
log.error("非法的chunked块")
break
end
end
opts.resp.body = opts.rx_buff
end
-- end
-- 清空rx_buff
opts.rx_buff = nil
-- 完结散花
end
-- socket 回调函数
local function http_socket_cb(opts, event)
opts.log(TAG, "tcp.event", string.format("%08X", event))
if event == socket.ON_LINE then
-- TCP链接已建立, 那就可以上行了
-- opts.state = "ON_LINE"
sys.publish(opts.topic)
elseif event == socket.TX_OK then
-- 数据传输完成, 如果是文件上传就需要这个消息
-- opts.state = "TX_OK"
sys.publish(opts.topic)
elseif event == socket.EVENT then
-- 收到数据或者链接断开了, 这里总需要读取一次才知道
local succ, data_len = socket.rx(opts.netc, opts.rx_buff)
if succ and data_len > 0 then
opts.log(TAG, "收到数据", data_len, "总长", #opts.rx_buff)
-- opts.log(TAG, "数据", opts.rx_buff:query())
else
if not opts.is_closed then
opts.log(TAG, "服务器已经断开了连接或接收出错")
opts.is_closed = true
sys.publish(opts.topic)
end
end
elseif event == socket.CLOSED then
log.info(TAG, "连接已关闭")
opts.is_closed = true
sys.publish(opts.topic)
end
end
local function http_exec(opts)
local fail_check = true
local netc = socket.create(opts.adapter, function(sc, event)
if opts.netc then
return http_socket_cb(opts, event)
end
end)
if not netc then
log.error(TAG, "创建socket失败了!!")
return -102
end
opts.netc = netc
opts.rx_buff = zbuff.create(1024)
opts.topic = tostring(netc)
socket.config(netc, nil,nil, opts.is_ssl)
if opts.debug_socket then
socket.debug(netc, true)
end
if not socket.connect(netc, opts.host, opts.port, opts.try_ipv6) then
log.warn(TAG, "调用socket.connect返回错误了")
return -103, "调用socket.connect返回错误了"
end
local ret = sys.waitUntil(opts.topic, 5000)
if ret == false then
log.warn(TAG, "建立连接超时了!!!")
return -104, "建立连接超时了!!!"
end
-- 首先是头部
local line = string.format("%s %s HTTP/1.1\r\n", opts.method:upper(), opts.uri)
-- opts.log(TAG, line)
socket.tx(netc, line)
for k, v in pairs(opts.headers) do
line = string.format("%s: %s\r\n", k, v)
socket.tx(netc, line)
end
line = "\r\n"
socket.tx(netc, line)
-- 然后是body
local rbody = ""
local write_counter = 0
local fbuf = nil
if (opts.mp and #opts.mp > 0) or opts.bodyfile or (opts.body and type(opts.body) == "userdata" and opts.body:used() > 4*1024) then
if opts.upload_file_buff then
fbuf = opts.upload_file_buff
else
if hmeta and hmeta.chip and hmeta.chip() == "EC718HM" then
fbuf = zbuff.create(1024 * 128, 0, zbuff.HEAP_PSRAM) -- 718hm可以128k的,放手去用
elseif hmeta and hmeta.chip and hmeta.chip() == "EC718PM" then
fbuf = zbuff.create(1024 * 64, 0, zbuff.HEAP_PSRAM) -- Air8101/7258可以128k的,放手去用
elseif hmeta and hmeta.chip and hmeta.chip() == "BK7258" then
fbuf = zbuff.create(1024 * 128, 0, zbuff.HEAP_PSRAM) -- Air8101/7258可以128k的,放手去用
else
fbuf = zbuff.create(1024 * 24, 0, zbuff.HEAP_PSRAM) -- 其他模组就是小的用吧
end
end
if fbuf == nil then
fbuf = zbuff.create(1024 * 8, 0, zbuff.HEAP_PSRAM) -- 创建一个小的,作为防御
if fbuf == nil then
fbuf = zbuff.create(1500, 0, zbuff.HEAP_PSRAM) -- 创建一个最小的,最后防御
end
end
opts.log(TAG, "上传使用缓冲区", fbuf:len())
end
if opts.mp and #opts.mp > 0 then
opts.log(TAG, "执行mulitpart上传模式")
for k, v in pairs(opts.mp) do
fail_check = socket.tx(netc, v[2])
write_counter = write_counter + #v[2]
if v[3] == "file" then
-- log.info("写入文件数据头", v[2])
local fd = io.open(v[1], "rb")
-- log.info("写入文件数据", v[1])
if fd then
local total = 0
while not opts.is_closed do
fbuf:seek(0)
local ok, flen = fd:fill(fbuf)
if not ok or flen <= 0 then
break
end
fbuf:seek(flen)
opts.log(TAG, "写入文件数据", "长度", flen, "总计", total)
if socket.tx(netc, fbuf) == false then
log.warn(TAG, "socket.tx返回错误了, 传送失败!!!!")
fail_check = false
break
end
write_counter = write_counter + flen
-- 注意, 这里要等待TX_OK事件
sys.waitUntil(opts.topic, 1000)
end
fd:close()
end
else
socket.tx(netc, v[1])
write_counter = write_counter + #v[1]
end
socket.tx(netc, "\r\n")
write_counter = write_counter + 2
end
-- rbody = rbody .. "--" .. opts.boundary .. "--\r\n"
socket.tx(netc, "--")
socket.tx(netc, opts.boundary)
socket.tx(netc, "--\r\n")
write_counter = write_counter + #opts.boundary + 2 + 2 + 2
elseif opts.bodyfile then
local fd = io.open(opts.bodyfile, "rb")
-- log.info("写入文件数据", v[1])
if fd then
local total = 0
while not opts.is_closed do
fbuf:seek(0)
local ok, flen = fd:fill(fbuf)
if not ok or flen <= 0 then
break
end
fbuf:seek(flen)
total = total + flen
opts.log(TAG, "写入文件数据", "长度", flen, "总计", total)
if socket.tx(netc, fbuf) == false then
log.warn(TAG, "socket.tx返回错误了, 传送失败!!!!")
fail_check = false
break
end
write_counter = write_counter + flen
-- 注意, 这里要等待TX_OK事件
sys.waitUntil(opts.topic, 1000)
end
fd:close()
end
elseif opts.body then
if type(opts.body) == "string" and #opts.body > 0 then
socket.tx(netc, opts.body)
write_counter = write_counter + #opts.body
elseif type(opts.body) == "userdata" then
opts.log(TAG, "使用zbuff上传数据", opts.body:used())
write_counter = write_counter + opts.body:used()
if opts.body:used() <= 4*1024 then
fail_check = socket.tx(netc, opts.body)
else
local offset = 0
local tmpbuff = opts.body
local tsize = tmpbuff:used()
while offset < tsize do
-- TODO 应该使用fbuf来做缓冲区,而不是toStr
opts.log(TAG, "body(zbuff)分段写入", offset, tsize)
fbuf:seek(0)
if tsize - offset > fbuf:len() then
fbuf:copy(0, tmpbuff, offset, fbuf:len())
fbuf:seek(fbuf:len())
if socket.tx(netc, fbuf) == false then
log.warn(TAG, "socket.tx返回错误了, 传送失败!!!!")
fail_check = false
break
end
offset = offset + fbuf:len()
sys.waitUntil(opts.topic, 1000)
else
fbuf:copy(0, tmpbuff, offset, tsize - offset)
fbuf:seek(tsize - offset)
fail_check = socket.tx(netc, fbuf)
break
end
end
end
end
end
-- log.info("写入长度", "期望", opts.body_len, "实际", write_counter)
-- log.info("hex", rbody)
if not fail_check then
log.warn(TAG, "发送数据失败, 终止请求")
opts.resp_code = -199
return
end
-- 处理响应信息
while not opts.is_closed and opts.timeout > 0 do
log.info(TAG, "等待服务器完成响应")
sys.waitUntil(opts.topic, 1000)
opts.timeout = opts.timeout - 1
end
log.info(TAG, "服务器已完成响应,开始解析响应")
resp_parse(opts)
-- log.info("执行完成", "返回结果")
end
--[[
执行HTTP请求
@api httpplus.request(opts)
@table 请求参数,是一个table,最起码得有url属性
@return int 响应码,服务器返回的状态码>=100, 若本地检测到错误,会返回<0的值
@return 服务器正常响应时返回结果, 否则是错误信息或者nil
@usage
-- 请求参数介绍
local opts = {
url = "https://httpbin.air32.cn/abc", -- 必选, 目标URL
method = "POST", -- 可选,默认GET, 如果有body,files,forms参数,会设置成POST
headers = {}, -- 可选,自定义的额外header
files = {}, -- 可选,键值对的形式,文件上传,若存在本参数,会强制以multipart/form-data形式上传
forms = {}, -- 可选,键值对的形式,表单参数,若存在本参数,如果不存在files,按application/x-www-form-urlencoded上传
body = "abc=123",-- 可选,自定义body参数, 字符串/zbuff/table均可, 但不能与files和forms同时存在
debug = false, -- 可选,打开调试日志,默认false
try_ipv6 = false, -- 可选,是否优先尝试ipv6地址,默认是false
adapter = nil, -- 可选,网络适配器编号, 默认是自动选
timeout = 30, -- 可选,读取服务器响应的超时时间,单位秒,默认30
bodyfile = "xxx", -- 可选,直接把文件内容作为body上传, 优先级高于body参数
upload_file_buff = zbuff.create(1024*64) -- 可选,上传时使用的缓冲区,默认会根据型号创建一个buff
}
local code, resp = httpplus.request({url="https://httpbin.air32.cn/get"})
log.info("http", code)
-- 返回值resp的说明
-- 情况1, code >= 100 时, resp会是个table, 包含2个元素
if code >= 100 then
-- headers, 是个table
log.info("http", "headers", json.encode(resp.headers))
-- body, 是个zbuff
-- 通过query函数可以转为lua的string
log.info("http", "headers", resp.body:query())
-- 也可以通过uart.tx等支持zbuff的函数转发出去
-- uart.tx(1, resp.body)
end
-- 情况2, code < 0 时, resp会是个错误信息字符串
-- 对upload_file_buff参数的说明
-- 1. 如果上传的文件比较大,建议传入这个参数,避免每次都创建和销毁缓冲区
-- 2. 如果不传入这个参数,本库会根据不同的模组型号创建一个合适的缓冲区
-- 3. 多个同时执行的httpplus请求,不可以共用同一个缓冲区
]]
function httpplus.request(opts)
-- 参数解析
local ret = http_opts_parse(opts)
if ret then
return ret
end
-- 执行请求
local ret, msg = pcall(http_exec, opts)
if opts.netc then
-- 清理连接
if not opts.is_closed then
socket.close(opts.netc)
end
socket.release(opts.netc)
opts.netc = nil
end
-- 处理响应或错误
if not ret then
log.error(TAG, msg)
return -199, msg
end
return opts.resp_code, opts.resp
end
return httpplus
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https://gitee.com/openLuat/LuatOS.git
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