November 2012
Intermediate to advanced
888 pages
54h 46m
Polish
Content preview from Ruby. Receptury
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14.16. Pisanie skryptów CGI
Podziękowania dla Chetana Patila
Problem
Chcemy uruchomić kod Ruby za pośrednictwem serwera WWW, bez konieczności jego specjalnej konfiguracji.
Rozwiązanie
Większość serwerów WWW obsługuje skrypty CGI, które bez trudu można pisać w języku Ruby. Poniżej zamieszczono prosty skrypt CGI, który wywołuje uniksowe polecenie ps, przetwarza jego wyniki i wyświetla listę działających procesów w postaci dokumentu HTML[97]. Każdy, kto ma dostęp do serwera WWW, może następnie przeglądać listę procesów działających w systemie.
#!/usr/bin/ruby # ps.cgi processes = %x{ps aux}.collect do |proc| '<tr><td>' + proc.split(/\s+/, 11).join('</td><td>') + '</td></tr>' end puts 'Content-Type: text/html' # W tym miejscu można zwrócić ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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