I was wondering what is Corona’s enctype? since network.upload does not support multipart/form-data
need this so we can change our server’s enctype, I don’t have any clue where to start.
It doesn’t imply any encoding type. Can you not derive everything you need from the tutorial?
Rob
well here is my code
local function networkListener( event ) if ( event.isError ) then print( "Network error!" ) elseif ( event.phase == "ended" ) then print ( "Upload complete!" ) print( event.response.." " ) end end network.upload( "ourwebsite/uploads.php", "POST", networkListener, "jsonTest2.json", system.CachesDirectory, "application/json" )
Apparently I also created a web uploader with HTML, and it has this backend
\<?php // In PHP versions earlier than 4.1.0, $HTTP\_POST\_FILES should be used instead // of $\_FILES. $uploaddir = 'uploads/'; $uploadfile = $uploaddir . basename($\_FILES['userfile']['name']); echo '\<pre\>'; if (move\_uploaded\_file($\_FILES['userfile']['tmp\_name'], $uploadfile)) { echo "File is valid, and was successfully uploaded.\n"; } else { echo "Error!\n"; } echo 'Here is some more debugging info:'; print\_r($\_FILES); print "\</pre\>"; ?\>
with my corona code, I also referenced the php with this backend, meaning, my web backend for uploading is also the same with my mobile app backend.
The web is working pretty well but the app. It keeps on giving me error results. I found out that It doesn’t even detect my file.(tried to echo the filename in the php code).
if you want here is my a very short html code.
\<!-- The data encoding type, enctype, MUST be specified as below --\> \<form enctype="multipart/form-data" action="upload-json-map-data.php" method="POST"\> \<!-- MAX\_FILE\_SIZE must precede the file input field --\> \<input type="hidden" name="MAX\_FILE\_SIZE" value="30000" /\> \<!-- Name of input element determines name in $\_FILES array --\> Send this file: \<input name="userfile" type="file" /\> \<input type="submit" value="Send File" /\> \</form\>Please follow the tutorial: http://coronalabs.com/blog/2014/02/25/tutorial-uploading-files-demystified/
There was a block of code in the old community code that did multipart mime, but it’s not there any more. I happen to have a local copy. This is more complex and uses network.request not network.upload:
------------------------------------------------- -- -- 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 MultipartFormDataOkay Rob thanks bTW, been searching this, and it doesn’t seem to appear. also I’ve been studying your tutorial, and it seems to work, the way I wanted it to be
BTW can I add a json data in the network.upload? in its params.body, we also need to pass something in our server with the uploaded file.
Okay we’ve done something that I don’t know what the hecked happened here is my code
-- Sepcify the URL of the PHP script to upload to. Do this on your own server. -- Also define the method as "PUT". local url = "http://ourwebsite/upload-json-map-data.php" local method = "PUT" -- Set some reasonable parameters for the upload process: local params = { timeout = 60 -- progress = true, -- bodyType = "binary" } -- Specify what file to upload and where to upload it from. -- Also, set the MIME type of the file so that the server knows what to expect. local filename = "jsonTest2.json" local baseDirectory = system.ResourceDirectory local contentType = "application/json" --another option is "text/plain" local tests = {} tests.testname = "Test" local headers = {} headers.filename = filename params.headers = headers params.body = json.encode(tests) -- network.upload( url , method, uploadListener, params, filename, baseDirectory, contentType ) network.request(url, "POST", networkListener, params )
I managed to upload the file to our server and also we managed to input data to our database with the encoded json file.
with Rob’s demystified upload php script I added
$obj = file\_get\_contents('php://input'); // network request data $data = json\_decode($obj, true); $save\_filename = $data['testname']; include('config/connection.php');// database connection mysql\_query("UPDATE user\_assets SET user\_assets.map\_data = '$save\_filename' WHERE user\_assets.game\_user\_id = '1'");It worked but the json file’s content is equal to tests table data, so still not working
equal to tests table data, so still not working
what?
Shouldn’t this be:
mysql_query(“UPDATE user_assets SET user_assets.map_data = '” . $save_filename. “’ WHERE user_assets.game_user_id = ‘1’”);
It doesn’t imply any encoding type. Can you not derive everything you need from the tutorial?
Rob
well here is my code
local function networkListener( event ) if ( event.isError ) then print( "Network error!" ) elseif ( event.phase == "ended" ) then print ( "Upload complete!" ) print( event.response.." " ) end end network.upload( "ourwebsite/uploads.php", "POST", networkListener, "jsonTest2.json", system.CachesDirectory, "application/json" )
Apparently I also created a web uploader with HTML, and it has this backend
\<?php // In PHP versions earlier than 4.1.0, $HTTP\_POST\_FILES should be used instead // of $\_FILES. $uploaddir = 'uploads/'; $uploadfile = $uploaddir . basename($\_FILES['userfile']['name']); echo '\<pre\>'; if (move\_uploaded\_file($\_FILES['userfile']['tmp\_name'], $uploadfile)) { echo "File is valid, and was successfully uploaded.\n"; } else { echo "Error!\n"; } echo 'Here is some more debugging info:'; print\_r($\_FILES); print "\</pre\>"; ?\>
with my corona code, I also referenced the php with this backend, meaning, my web backend for uploading is also the same with my mobile app backend.
The web is working pretty well but the app. It keeps on giving me error results. I found out that It doesn’t even detect my file.(tried to echo the filename in the php code).
if you want here is my a very short html code.
\<!-- The data encoding type, enctype, MUST be specified as below --\> \<form enctype="multipart/form-data" action="upload-json-map-data.php" method="POST"\> \<!-- MAX\_FILE\_SIZE must precede the file input field --\> \<input type="hidden" name="MAX\_FILE\_SIZE" value="30000" /\> \<!-- Name of input element determines name in $\_FILES array --\> Send this file: \<input name="userfile" type="file" /\> \<input type="submit" value="Send File" /\> \</form\>Please follow the tutorial: http://coronalabs.com/blog/2014/02/25/tutorial-uploading-files-demystified/
There was a block of code in the old community code that did multipart mime, but it’s not there any more. I happen to have a local copy. This is more complex and uses network.request not network.upload:
------------------------------------------------- -- -- 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 MultipartFormDataOkay Rob thanks bTW, been searching this, and it doesn’t seem to appear. also I’ve been studying your tutorial, and it seems to work, the way I wanted it to be
BTW can I add a json data in the network.upload? in its params.body, we also need to pass something in our server with the uploaded file.
Okay we’ve done something that I don’t know what the hecked happened here is my code
-- Sepcify the URL of the PHP script to upload to. Do this on your own server. -- Also define the method as "PUT". local url = "http://ourwebsite/upload-json-map-data.php" local method = "PUT" -- Set some reasonable parameters for the upload process: local params = { timeout = 60 -- progress = true, -- bodyType = "binary" } -- Specify what file to upload and where to upload it from. -- Also, set the MIME type of the file so that the server knows what to expect. local filename = "jsonTest2.json" local baseDirectory = system.ResourceDirectory local contentType = "application/json" --another option is "text/plain" local tests = {} tests.testname = "Test" local headers = {} headers.filename = filename params.headers = headers params.body = json.encode(tests) -- network.upload( url , method, uploadListener, params, filename, baseDirectory, contentType ) network.request(url, "POST", networkListener, params )
I managed to upload the file to our server and also we managed to input data to our database with the encoded json file.
with Rob’s demystified upload php script I added
$obj = file\_get\_contents('php://input'); // network request data $data = json\_decode($obj, true); $save\_filename = $data['testname']; include('config/connection.php');// database connection mysql\_query("UPDATE user\_assets SET user\_assets.map\_data = '$save\_filename' WHERE user\_assets.game\_user\_id = '1'");It worked but the json file’s content is equal to tests table data, so still not working
equal to tests table data, so still not working
what?