I got uploading working with a code that Rob supplied in this thread http://forums.coronalabs.com/topic/54109-corona-sdk-upload-enctype/ … The problem is now that the file is corrupt. Its uploaded and inserted into Wordpress media librarry and recognised as a jpeg but it has some 100Kb of added data. I think this is because of the encoding in the code. Could anybody help with removing the encoding from the code? Im trying it out but is unable to remove encoding from function “MultipartFormData:addFile(name, path, mimeType, remoteFileName)” whiteout breaking the code. Here is the code.
------------------------------------------------- -- -- class\_MultipartFormData.lua -- Author: Brill Pappin, Sixgreen Labs Inc. -- -- Generates multipart form-data for http POST calls that require it. -- -- Caution: -- In Corona SDK you have to set a string as the body, which means that the -- entire POST needs to be encoded as a string, including any files you attach. -- Needless to say, if the file you are sending is large, it''s going to use -- up all your available memory! -- -- Example: --[[local MultipartFormData = require("class\_MultipartFormData") local multipart = MultipartFormData.new() multipart:addHeader("Customer-Header", "Custom Header Value") multipart:addField("myFieldName","myFieldValue") multipart:addField("banana","yellow") multipart:addFile("myfile", system.pathForFile( "myfile.jpg", system.DocumentsDirectory ), "image/jpeg", "myfile.jpg") local params = {} params.body = multipart:getBody() -- Must call getBody() first! params.headers = multipart:getHeaders() -- Headers not valid until getBody() is called. local function networkListener( event ) if ( event.isError ) then print( "Network error!") else print ( "RESPONSE: " .. event.response ) end end network.request( "http://www.example.com", "POST", networkListener, params)]] ------------------------------------------------- local crypto = require("crypto") local ltn12 = require("ltn12") local mime = require("mime") MultipartFormData = {} local MultipartFormData\_mt = { \_\_index = MultipartFormData } function MultipartFormData.new() -- The constructor local newBoundary = "MPFD-"..crypto.digest( crypto.sha1, "MultipartFormData"..tostring(object)..tostring(os.time())..tostring(os.clock()), false ) local object = { isClass = true, boundary = newBoundary, headers = {}, elements = {}, } object.headers["MIME-Version"] = "1.0" return setmetatable( object, MultipartFormData\_mt ) end function MultipartFormData:getBody() local src = {} -- always need two CRLF's as the beginning table.insert(src, ltn12.source.chain(ltn12.source.string("\n\n"), mime.normalize())) for i = 1, #self.elements do local el = self.elements[i] if el then if el.intent == "field" then local elData = { "--"..self.boundary.."\n", "content-disposition: form-data; name=\"", el.name, "\"\n\n", el.value, "\n" } local elBody = table.concat(elData) table.insert(src, ltn12.source.chain(ltn12.source.string(elBody), mime.normalize())) elseif el.intent == "file" then local elData = { "--"..self.boundary.."\n", "content-disposition: form-data; name=\"", el.name, "\"; filename=\"", el.filename, "\"\n", "Content-Type: ", el.mimetype, "\n", "Content-Transfer-Encoding: ", el.encoding, "\n\n", } local elHeader = table.concat(elData) local elFile = io.open( el.path, "rb" ) assert(elFile) local fileSource = ltn12.source.cat( ltn12.source.chain(ltn12.source.string(elHeader), mime.normalize()), ltn12.source.chain( ltn12.source.file(elFile), ltn12.filter.chain( mime.encode(el.encoding), mime.wrap() ) ), ltn12.source.chain(ltn12.source.string("\n"), mime.normalize()) ) table.insert(src, fileSource) end end end -- always need to end the body table.insert(src, ltn12.source.chain(ltn12.source.string("\n--"..self.boundary.."--\n"), mime.normalize())) local source = ltn12.source.empty() for i = 1, #src do source = ltn12.source.cat(source, src[i]) end local sink, data = ltn12.sink.table() ltn12.pump.all(source,sink) local body = table.concat(data) -- update the headers we now know how to add based on the multipart data we just generated. self.headers["Content-Type"] = "multipart/form-data; boundary="..self.boundary self.headers["Content-Length"] = string.len(body) -- must be total length of body return body end function MultipartFormData:getHeaders() assert(self.headers["Content-Type"]) assert(self.headers["Content-Length"]) return self.headers end function MultipartFormData:addHeader(name, value) self.headers[name] = value end function MultipartFormData:setBoundry(string) self.boundary = string end function MultipartFormData:addField(name, value) self:add("field", name, value) end function MultipartFormData:addFile(name, path, mimeType, remoteFileName) -- For Corona, we can really only use base64 as a simple binary -- won't work with their network.request method. local element = {intent="file", name=name, path=path, mimetype = mimeType, filename = remoteFileName, encoding = "base64"} self:addElement(element) end function MultipartFormData:add(intent, name, value) local element = {intent=intent, name=name, value=value} self:addElement(element) end function MultipartFormData:addElement(element) table.insert(self.elements, element) end function MultipartFormData:toString() return "MultipartFormData [elementCount:"..tostring(#self.elements)..", headerCount:"..tostring(#self.headers).."]" end return MultipartFormData
And this is my function
local MultipartFormData = require("class\_MultipartFormData") local filename = tostring(postDataTable.fileName) print( filename ) local multipart = MultipartFormData.new() multipart:addHeader("Authorization", authHeader) --multipart:addField("file","test.jpg") --multipart:addField("banana","yellow") multipart:addFile("file", system.pathForFile( "myfile.jpg", system.TemporaryDirectory ), "image/jpeg", filename) local params = {} params.body = multipart:getBody() -- Must call getBody() first! params.headers = multipart:getHeaders() -- Headers not valid until getBody() is called. local function networkListener( event ) if ( event.isError ) then print( "Network error!") else print ( "RESPONSE: " .. event.response ) end end network.request( "http://www.teamhokuspokus.com/bin/wp-json/media", "POST", networkListener, params)
