I would like to know how to use the HTML DOM FileUpload object in a client webpage to upload a file from the file system of the client computer to my embedded server. The HTML code to present the file selection dialog on the client webpage is easy and works great:
<input title="Click to choose an image file" type="file" id="fileselect_img" />
But once the file has been selected how is the transfer to my embedded server started and how is my server notified of the incomming data so I can write a function to receive it? I should mention that my embedded server is running on a small 32bit PowerPC processor with an RTOS that provides me with a limited http server. I can serve up web pages and perform cgi function calls but thats about it.
I require this in order to allow a client computer to upload a binary, firmware update file to my embedded server which it will use to update it's application code. Thanks in advance for any helpful suggestions. ~Tim
~Tim
Related
I know this question has been asked a lot of times already but unfortunately none of the answers have helped me. I want to upload an image file to my remote Web server (Apache). In my Excel cell, I have the file path of an image and want to use VBA to upload that file to a remote server.
I can't use any 3rd party tool in conjunction (like WinSCP), because that will make my product not very "portable-friendly". I was fine with Windows FTP, but it doesn't seems to be supporting passive mode and hence I also can't use that.
There are some threads which used IE to upload the file, and some which I believe are uploading via POST request by reading file in binary mode.
I want to replicate something similar to uploading files via HTTP POST on a website.
I have designed a jmeter script to download PDF using 'Save response to a file' listener.It is working when I executed in local both in GUI and non GUI mode and the PDF is downloaded.But when im trying to run the same script in Distributed remote testing using client(windows 7) and server(windows 7) on the same subnet,unknown and plain files are getting downloaded instead of the the PDF file.
I have given folder path of the server in the Listener.Is there any other way to download the actual PDF instead of those unknown file.
thanks in advance :)
In distributed testing, jmeter uses StrippedBatch mode which strips response data when sending response to controller.
So you need to switch mode to One that does not strip like Standard:
https://github.com/apache/jmeter/blob/trunk/bin/jmeter.properties#L758
So add to user.properties:
mode=Standard
See also:
http://jmeter.apache.org/usermanual/remote-test.html
Paragraph 15.4
Can a pdf file or a doc/docx file be opened in a browser? I have a link which when clicked opens up the document as such in pdf and in MS word. But is it possible to open them in browser using Coldfusion?
thanks in advance
ColdFusion has little to do with how they are opened in the browser. That depends on how the user's browser is configured. If it is configured to open in a standalone app, then it will do so, if it is configured to open in the browser then it will do that. You have some influence if you are serving the file via ColdFusion using the <cfcontent> tag, but since you have provided no code or any explanation of how you are serving these files I will assume you are just doing something like pdf which will just load the file in the browser and the browser determines whether to download it or view it directly.
If you are using <cfcontent> to serve the file then you can also use <cfheader> and send the file as either inline or an attachment which can help tell the browser how it should load it. That said, it is still up to the browser's configuration.
Something like:
<cfheader name="Content-Type" value="application/pdf" />
<cfheader name="Content-Disposition" value="inline;filename=mypdf.pdf;" />
<cfcontent type="application/pdf" reset="true" variable="#myPDFBinary#" />
would serve a PDF binary, telling the browser to load it inline, which should, if properly configured, open the PDF in the browser.
This is not something that ColdFusion can address. This has to do with the particular web browser being used and what related software a user has installed locally.
If the user has a browser that supports PDF natively (e.g. Chrome) or they have the Adobe Acrobat browser plugin installed, then the PDF will open in the browser. Otherwise, it will open in the Acrobat program or any program they have that can view PDF documents. There is no MS Word plugin for browsers, so the browser will always try to open a .doc file in MS Word (if they have it installed) or any other program they have that can read that type of file.
I have made an exe program using vb.net but I want to make a webpage on which that exe is embedded.
Like the way this site has done.
You already have the source code for your VB.NET application, the path of least resistance is to factor out the desired functionality into a library DLL. Your web server presumably runs Windows and so will probably have ASP.NET capability. Just reference the DLL in your ASP.NET project and call into that instead.
My advice is don't make a rod for your own back by creating your own CGI binaries:
With a CGI application you'll have to generate all of the response headers and markup by yourself, you'll also have to parse any inbound headers, cookies etc yourself. It's a lot of work to replicate functionality already present in ASP.NET
Enabling CGI executables on your web server increases the risk of a security compromise, either through a mistake in your VB.NET executable, or because via some other vector an attacker has been able to upload a malicious executable and run that.
Im building an AIR application using the HTML/JS SDK.
I can include scripts and stylesheets as long as they are in the same folder as my website, but no remote content fetched from the Internet can be included ! No remote scripts, neither from jquery nor from google... I put <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> and nothing happens ! It is the case for every file, not only this one.
Have you ever run into this issue ? In the AIR documentation they seem to present us with big mashups and remote inclusions all the time, still it won't work for me !
You can definitely do this in AIR, but you need to work around the security restrictions as by default you can't do this from the first frame that is loaded. Thankfully it's not too hard.
You need to create an iframe in your main html page (e.g. index.html) and load all of your content into this. Your main html page then acts as a controller of sorts allowing you to call methods which require enhanced security permissions (file system etc..), while any code loaded into the iframe is allowed to load external media and scripts and also allowed to use JavaScript eval and other methods which are otherwise blocked in the main frame of the application.
You can read about it here http://help.adobe.com/en_US/AIR/1.5/devappshtml/WS5b3ccc516d4fbf351e63e3d118666ade46-7f08.html#WS5b3ccc516d4fbf351e63e3d118666ade46-7f07
Read the full page so you understand the concept, but pay particular attention to the sandboxRoot and documentRoot attributes when you are setting up the iframe.