#lua-http

[daurnimator]

lua-http v0.4 released

Heads up to everyone, I made a small release of lua-http yesterday.

lua-http is a library that hopes to provide all HTTP operations you should ever need. In addition to all the low-level parsing and serialising operations you might expect, lua-http provides high level interfaces for writing your own HTTP server or performing HTTP requests.

This was a minor release 2 years on from 0.3 that fixes a few easy bugs and improves Lua 5.4 support. Notable inclusions in this release:

Support multiple elliptic curves under OpenSSL 1.1.1+ (#150)

Improve support for Lua 5.4 (not longer require bit library to be installed) (#180)

Ignore delayed RST_STREAM frames in HTTP 2 (#145)

Links:

Release page: https://github.com/daurnimator/lua-http/releases/tag/v0.4

Homepage: https://daurnimator.github.io/lua-http/

Documentation: https://daurnimator.github.io/lua-http/0.4

[daurnimator]

lua-http v0.2 released

I'm happy to announce the second release of lua-http.

lua-http is a library that hopes to provide all HTTP operations you should ever need. In addition to all the low-level parsing and serialising operations you might expect, lua-http provides high level interfaces for writing your own HTTP server or performing HTTP requests.

This is mostly a bugfix release. Included in this release:

Remove broken http.server .client_timeout option (replaced with .connection_setup_timeout)

Fix http1 pipelining locks

Miscellaneous http2 fixes

HTTP 2 streams no longer have to be used in order of creation

No longer raise decode errors in hpack module

Fix hpack:lookup_index() to treat static entries without values as empty string

Fix HTTP 1 client in locales with non-"." decimal separator

Add h1_stream.max_header_lines property to prevent infinite list of headers

New .bind option for requests and http.client module

Links:

Release page: https://github.com/daurnimator/lua-http/releases/tag/v0.2

Homepage: https://daurnimator.github.io/lua-http/

Documentation: https://daurnimator.github.io/lua-http/0.2

[daurnimator]

Migrating from luasocket to lua-http

I saw https://github.com/brunoos/luasec/issues/72#issuecomment-205328635 and couldn't resist writing the linked code to use lua-http instead.

As the code was originally using luasocket's http interface, it was straightforward to convert it to lua-http's http.compat.socket module. This compatability interface provides the same API as luasocket's socket.http and luasec's ssl.https modules.

local http = require "http.compat.socket" -- require "socket.http" local https = http -- require "ssl.https" local ltn12 = require "ltn12" local string_sub = string.sub local table_concat = table.concat local function make_request(url, timeout) http.TIMEOUT = timeout http.USERAGENT = "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.97 Safari/537.36" local b, c, h, s local tbody = {} local https_opt = { url = url, protocol = "tlsv1", verify = "none", headers = { ["Accept"] = "*/*", ["Accept-Language"] = "sk;q=0.8,en-US,en;q=0.6,cs;q=0.4", ["Accept-Charset"] = "UTF-8;q=0.8,*;q=0.7", }, sink = ltn12.sink.table(tbody), redirect = false, } local http_opt = { url = url, headers = { ["Accept"] = "*/*", ["Accept-Language"] = "sk;q=0.8,en-US,en;q=0.6,cs;q=0.4", ["Accept-Charset"] = "UTF-8;q=0.8,*;q=0.7", }, sink = ltn12.sink.table(tbody), redirect = false, } if string_sub(url, 1, 5) ~= "https" then _, c, h, s = http.request(http_opt) else _, c, h, s = https.request(https_opt) end -- make headers keys lowercase if h ~= nil then local h_tmp = {} for k, v in pairs(h) do h_tmp[k:lower()] = v end h = h_tmp end -- concat body parts b = table_concat(tbody) return {body = b, code = c, headers = h, status = s} end

However, this function can be rewritten much more nicely using the http.request module.

local http_req = require "http.request" local h1_reason_phrases = require "http.h1_reason_phrases" local function make_request(url, timeout) local r = http_req.new_from_uri(url) r.headers:upsert("useragent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.97 Safari/537.36") r.headers:upsert("accept", "*/*") r.headers:upsert("accept-language", "sk;q=0.8,en-US,en;q=0.6,cs;q=0.4") r.headers:upsert("accept-charset", "UTF-8;q=0.8,*;q=0.7") r.follow_redirects = false local headers, stream = r:go(timeout) if headers == nil then return nil, stream end local b, err = stream:get_body_as_string(timeout) -- XXX: use a deadline instead of a timeout? stream:shutdown() -- shutdown ASAP to free resources if b == nil then return nil, err end local c = headers:get(":status") local s = h1_reason_phrases[c] -- look up reason phrase for code c = tonumber(c, 10) or c -- the code might not be numeric -- convert from headers object to unordered table of key/value pairs local h = {} for name in headers:each() do if name ~= ":status" and h[name] == nil then h[name] = headers:get_comma_separated(name) end end return {body = b, code = c, headers = h, status = s} end

If the user has the flexibility to change the API of their make_request function, they may wish to use the lua-http http.headers object directly instead of transforming it to code + table of header name => value pairs.

[daurnimator]

Lua lib to send SMS with Telstra's SMS API

Wrote a lua library wrapper around the Telstra SMS API.

[daurnimator]

lua-http - HTTP Client for Lua

Over the last few weeks, I've been working on new lua library in my free time.

Announcing: "lua-http".

It's a fresh take on a http library for lua. Designed it with HTTP2 in mind from the start, it caters for both clients and servers.

All network operations are non-blocking, yet also work outside of a coroutine. This allows for lua-http to be used in any lua project, application or script.