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POPHP Curl - Validate and Fetch .csv file efficiently. How?
 

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  1. POPHP Curl - Validate and Fetch .csv file efficiently. How?
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    <p>I'm very weak in curl functions. I have a script which does hourly routines to update files among networked sites. </p> <p>I have three concerns:</p> <ol> <li>Efficiency </li> <li>Accuracy </li> <li>Security</li> </ol> <p>Having tested it in some length, <strong>it will grab the 404's and save them as csv files</strong>, and then the validation afterward deletes them. But it would be better to reject a non-csv file flat out...even if its disguised as a .csv for malicious purposes. </p> <p>On that note, I will be saving them to a special folder. Is there any way to hide executable (malicious) code in them? I figured I would keep this directory non-executable to ensure safety.</p> <p>Here is the code: </p> <pre><code>//check file exists first: if ( !$fp = curl_init( $url ) ) return 'Symbiocard not found at this address ('.$url.'). Please upload manually.'; $ch = curl_init( $url ); curl_setopt( $ch, CURLOPT_NOBODY, 0 ); curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1 ); curl_setopt( $ch, CURLOPT_BINARYTRANSFER, 1 ); $raw = curl_exec( $ch ); curl_close( $ch ); if ( file_exists( $newfile ) ) { unlink( $newfile ); } //file_exists( $newfile ) $fp = fopen( $newfile, 'x' ); fwrite( $fp, $raw ); fclose( $fp ); $required_fields = array( 'symbiostock_site', 'admin_email', 'symbiostock_version' ); </code></pre> <p>I didn't past my validation / file writing code simply because I'd like to filter it on the CURL level. </p> <p><strong>THE QUESTION: How do I limit curl to only communicate with a genuine csv file (not a 404 or any other document at the supposed .csv location).</strong></p>
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    1. USOrangeman555
    1. USOrangeman555
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      1. POPHP Curl - Validate and Fetch .csv file efficiently. How?
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    1. COWhat exactly is the question ?
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      1. USBaba
    2. COHAHA! Silly me. Let me update the post with a more clear question :D
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      1. USOrangeman555
 

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