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POC: simple HTTP server. Read a local file and download it from browser
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  1. POC: simple HTTP server. Read a local file and download it from browser
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    copied!<p>I'm working on a simple server that have to work with a browser. When I give it some command, it has to reply me with some html code so to reply my answer. For example I can see the list of the files of a folder etc. I can access my server using localhost:port/somecommand Now I'm working on donwloading a file from the local hard-disk. What I want to do is enter an url like localhost:port/download/filepath and make the browser download it. When I create the reply I put all things html need to understand that there is a file to download, and infact I have the classical pop-up window that ask me to download the file, but what I receive is bigger than the original file located to the hard-disk, and infact the file is corrupted. Here the code:</p> <p>This is the html I send back</p> <pre><code>HTTP/1.0 200 OK Date: Tue Apr 10 16:23:55 2012 Content-Type: application/octet-stream Content-Disposition: attachment; filename=mypic.jpg Content-Length: 2574359 //empty line here </code></pre> <p>(I followed <a href="http://www.ietf.org/rfc/rfc2183.txt" rel="nofollow"> The Content-Disposition Header Field text</a> )</p> <p>then I read from file and I send back html first and what I read from file then:</p> <pre><code>int file=open(name,O_RDONLY); void * data=malloc(buf.st_size+1); //buf.st_size is the correct file size size_t readed=read(file,data,buf.st_size); send(sd_current, html, DIRSIZE, 0); //html is a string containing what you I showed you send(sd_current, data, readed); </code></pre> <p>This result the file I can download using localhost:port/download/filepath to be bigger than original then corrupted, but I can't get rid of why. Can someone help me?</p>
 

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