Problem with CURLSMultiMBS

  1. 5 days ago

    Beatrix W

    Nov 8 Pre-Release Testers, Third Party Store Europe (Germany)
    Edited 5 days ago

    I'm downloading external images for emails with CURLSMultiMBS. I found some very special url which gives an error.

    Main code:

    dim theCurl as new CURLSMBS
    theCurl.CollectHeaderData = true
    theCurl.CollectOutputData = true
    theCurl.OptionTimeOut = 5
    theCurl.OptionURL = URL
    theCurl.OptionFollowLocation = true
    theCurl.OptionMaxRedirs = 3
    theCurl.OptionSSLVerifyHost = 2 // verify server
    theCurl.OptionSSLVerifyPeer = 1 // proofs certificate is authentic
    
    dim cacert as FolderItem = TPSF.Resources
    if cacert <> Nil and cacert.Exists then cacert = cacert.Child("cacert.pem")
    if cacert <> Nil and cacert.Exists then
      theCurl.SetPathCAInfo cacert
    end if
    
    if not Multi.AddCURL(theCurl) then Break

    The url is an embedded Google Charts one:

    http://sendgrid.com/wf/image?url=http%3A%2F%2Fchart.apis.google.com%2Fchart%3Fchxt%3Dx%2Cy%26cht%3Dlc%26chd%3Dt%3A35%2C46%2C40%2C39%2C52%2C40%2C36%7C0%2C0%2C0%2C0%2C0%2C0%2C0%7C0%2C0%2C0%2C0%2C0%2C0%2C0%7C0%2C0%2C0%2C0%2C0%2C0%2C0%7C0%2C0%2C0%2C0%2C0%2C0%2C0%26chco%3Dff0000%2C00ff00%2C0000ff%2Cff00ff%2C00ffff%26chs%3D700x300%26chxl%3D0%3A%7C31%7C01%7C02%7C03%7C04%7C05%7C06%7C1%3A%7C0%7C26%7C52%26chdl%3DRequests%7CSpam%2BReports%7CBounces%7COpens%7CClicks%26chds%3D0%2C52

    The result is:

    <!DOCTYPE html>
    <html lang=en>
    <meta charset=utf-8>
    <meta name=viewport content="initial-scale=1, minimum-scale=1, width=device-width">
    <title>Error 400 (Bad Request)!!1</title>
    <style>
    *{margin:0;padding:0}html,code{font:15px/22px arial,sans-serif}html{background:#fff;color:#222;padding:15px}body{margin:7% auto 0;max-width:390px;min-height:180px;padding:30px 0 15px}* > body{background:url(//www.google.com/images/errors/robot.png) 100% 5px no-repeat;padding-right:205px}p{margin:11px 0 22px;overflow:hidden}ins{color:#777;text-decoration:none}a img{border:0}@media screen and (max-width:772px){body{background:none;margin-top:0;max-width:none;padding-right:0}}#logo{background:url(//www.google.com/images/branding/googlelogo/1x/googlelogo_color_150x54dp.png) no-repeat;margin-left:-5px}@media only screen and (min-resolution:192dpi){#logo{background:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) no-repeat 0% 0%/100% 100%;-moz-border-image:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) 0}}@media only screen and (-webkit-min-device-pixel-ratio:2){#logo{background:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) no-repeat;-webkit-background-size:100% 100%}}#logo{display:inline-block;height:54px;width:150px}
    </style>
    <a href=//www.google.com/><span id=logo aria-label=Google></span></a>
    <p><b>400.</b> <ins>That’s an error.</ins>
    <p>Your client has issued a malformed or illegal request. <ins>That’s all we know.</ins>

    AppleMail and Safari can download the image. How do I fix the error?

  2. Christian S

    Nov 8 Pre-Release Testers, Xojo Pro, XDC Speakers, Third Party Store Germany

    so they check for headers?
    like an user agent string?

  3. Beatrix W

    Nov 8 Pre-Release Testers, Third Party Store Europe (Germany)

    Haven't a clue what Google checks. Is this the already turned-off Image Chart API? It's rather strange that this still works fine.

or Sign Up to reply!