Mercurial Hosting > nabble
diff src/nabble/utils/luan/Http.luan @ 0:7ecd1a4ef557
add content
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Thu, 21 Mar 2019 19:15:52 -0600 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/nabble/utils/luan/Http.luan Thu Mar 21 19:15:52 2019 -0600 @@ -0,0 +1,160 @@ +java() +local Luan = require "luan:Luan.luan" +local error = Luan.error +local ipairs = Luan.ipairs or error() +local pairs = Luan.pairs or error() +local set_metatable = Luan.set_metatable or error() +local type = Luan.type or error() +local Io = require "luan:Io.luan" +local Html = require "luan:Html.luan" +local url_encode = Html.url_encode or error() +local Table = require "luan:Table.luan" +local clear = Table.clear or error() +local Package = require "luan:Package.luan" +local String = require "luan:String.luan" +local matches = String.matches or error() +local Boot = require "luan:Boot.luan" +local HttpServicer = require "java:nabble.utils.luan.HttpServicer" +local IoLuan = require "java:luan.modules.IoLuan" + + +local Http = {} + +Http.version = "jetty" + +local function sent_error(_,_,_) + error "headers are not accessible after you start writing content" +end + +local sent_error_metatable = { __index=sent_error, __new_index=sent_error } + +function Http.sent_headers(headers) + clear(headers) + set_metatable(headers,sent_error_metatable) +end + + +local function new_common(this) + this = this or {} + this.headers = {} + return this +end + +local function to_list(input) + return type(input) == "table" and input or {input} +end + + +function Http.new_request(this) + this = new_common(this) + this.method = "GET" -- default + -- this.path + -- this.protocol + this.scheme = "http" -- default + this.port = 80 -- default + this.parameters = {} + this.cookies = {} + + function this.query_string() + local string_uri = Io.uri "string:" + local out = string_uri.text_writer() + local and_char = "" + for name, values in pairs(this.parameters) do + for _, value in ipairs(to_list(values)) do + out.write( and_char, url_encode(name), "=", url_encode(value) ) + and_char = "&" + end + end + out.close() + local s = string_uri.read_text() + return s ~= "" and s or nil + end + + function this.full_path() -- compatible with impl + local path = this.path + if this.method ~= "POST" then + local query = this.query_string() + if query ~= nil then + path = path.."?"..query + end + end + return path + end + + function this.url() + return this.scheme.."://"..this.headers["host"]..this.full_path() + end + + return this +end + +local STATUS = { + OK = 200 + MOVED_PERMANENTLY = 301 + -- add more as needed +} +Http.STATUS = STATUS + +function Http.new_response(this) + this = new_common(this) + this.status = STATUS.OK + if this.java ~= nil then + this.send_redirect = this.java.sendRedirect + this.send_error = this.java.sendError + + function this.set_cookie(name,value,attributes) + attributes = attributes or {} + attributes["Path"] = attributes["Path"] or "/" + HttpServicer.setCookie(Http.request.java,this.java,name,value,attributes) + end + + function this.set_persistent_cookie(name,value,attributes) + attributes = attributes or {} + attributes["Max-Age"] = "10000000" + this.set_cookie(name,value,attributes) + end + + function this.remove_cookie(name,attributes) + attributes = attributes or {} + attributes["Max-Age"] = "0" + this.set_cookie(name,"delete",attributes) + end + + function this.set() + HttpServicer.setResponse(this,this.java) + Http.sent_headers(this.headers) + end + + function this.text_writer() + this.java.setCharacterEncoding "UTF-8" + this.java.setContentType "text/html; charset=UTF-8" + this.set() + return Boot.text_writer(this.java.getWriter()) + end + + function this.binary_writer() + this.set() + return IoLuan.binaryWriter(this.java.getOutputStream()) + end + + function this.reset() + this.java.reset() + set_metatable(this.headers,nil) + end + end + return this +end + +-- request = new_request{} -- filled in by HttpServicer +-- response = new_response{} -- filled in by HttpServicer + + +function Http.uncache_site() + for k in pairs(Table.copy(Package.loaded)) do + if matches(k,"^site:") then + Package.loaded[k] = nil + end + end +end + +return Http