Curl - How can I get the filename when browser does, but Curl doesnt? [closed]

Question

I'm trying to perform a simple download. I'm actually using a longer loop and getting the URLs from a filelist, but that's besides the point, since I encounter the error on normal singular Curl query either way, so I'll keep it as simple as possible.

When I try to download one of the files like that:

curl "https://steamuserimages-a.akamaihd.net/ugc/1834659595661927431/A2B68B782314829F6BE9DA4034B144DFFD604887/" -O

I get the following result:

curl: Remote file name has no length!
curl: (23) Failed writing received data to disk/application

However, if I copypaste this link into my Edge browser and just try to save the file, when downloading, a name pops up: 15608770555178647552_screenshots_20220310005322_1.jpg

How can I force Curl to get this name? What am I missing?

I'm using Windows 10 and the basic Command Prompt (cmd.exe).

Answer 1

unfortunately, as of writing, curl doesn't support UTF-8 filenames in Content-Disposition (see https://github.com/curl/curl/issues/1888 ), meaning you'll have to parse it out yourself.. if you have php-cli installed (see https://windows.php.net/ ), you could do

echo https://steamuserimages-a.akamaihd.net/ugc/1834659595661927431/A2B68B782314829F6BE9DA4034B144DFFD604887/ | php -r "if(0)var_dump(stream_get_contents(STDIN)); $ch=curl_init();$name='';curl_setopt_array($ch,array(CURLOPT_RETURNTRANSFER=>1,CURLOPT_HEADERFUNCTION=>function($ch,string $h)use(&$name):int{$pos=strpos($h,'filename*=UTF-8');if($pos!==false){$name=trim(substr($h,$pos+17,-3));}else{if(0)var_dump($h);} return strlen($h);},CURLOPT_URL=>trim(stream_get_contents(STDIN)) ));$bin=curl_exec($ch);file_put_contents($name,$bin);"

... but good luck doing that with just curl/cmd.exe..

Answer 2

Combine -O and -J

Try

curl -O -J "https://steamuserimages-a.akamaihd.net/ugc/1834659595661927431/A2B68B782314829F6BE9DA4034B144DFFD604887/"

If not told otherwise, curl writes the received data to stdout. It can be instructed to instead save that data into a local file, using the -o, --output or -O, --remote-name options. If curl is given multiple URLs to transfer on the command line, it similarly needs multiple options for where to save them.

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