{"id":87101,"date":"2020-07-03T19:42:00","date_gmt":"2020-07-03T17:42:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/najdena-prichina-problem-dehydrated-s-acme-serverami-otlichnymi-ot-letsencrypt"},"modified":"2020-07-03T19:42:00","modified_gmt":"2020-07-03T17:42:00","slug":"najdena-prichina-problem-dehydrated-s-acme-serverami-otlichnymi-ot-letsencrypt","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/najdena-prichina-problem-dehydrated-s-acme-serverami-otlichnymi-ot-letsencrypt","title":{"rendered":"Trovata la causa dei problemi di dehydrated con i server ACME diversi da LetsEncrypt","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Sebastian Krause ha identificato<\/a><\/noindex> l'origine di una strana incompatibilit\u00e0 con il servizio Bypass<\/a><\/noindex> di uno script dehydrated<\/a><\/noindex>, utilizzato per automatizzare l'ottenimento di certificati TLS tramite il protocollo ACME. Con Bypass funzionano sia il client di riferimento che uacme, ma non dehydrated (in effetti, ha funzionato anche con alcuni workaround, ma esclusivamente in modalit\u00e0 dns-1).<\/p>\n

La causa si \u00e8 rivelata banale: invece di analizzare correttamente la risposta in formato JSON, l'autore dehydrated ha sfruttato una specifica caratteristica del formato di output di JSON fornito dal servizio Let's Encrypt e ha eseguito l'analisi tramite espressioni regolari. Tuttavia, Bypass restituisce un JSON minificato e non ben formattato, e quello utilizzato regolare<\/a><\/noindex> non ha funzionato. L'approccio indicato non esclude la possibilit\u00e0 di problemi anche con LetsEncrypt, poich\u00e9 questo servizio potrebbe modificare in futuro senza preavviso il formato di output, rimanendo per\u00f2 all'interno del protocollo ufficiale.<\/p>\n

Durante la discussione del problema \u00e8 stato suggerito di utilizzare un parser JSON esterno, come json_pp<\/a><\/noindex> o jq<\/a><\/noindex> (aggiungere nel pipe 'jq -r \" .authorizations | .[] \"' per un'analisi corretta).
\nLo svantaggio di questo approccio \u00e8 la confusione dell'idea di dotarsi di strumenti minimi e facilmente verificabili, oltre ai problemi con la gestione degli errori.<\/p>\n

L'autore del progetto dehydrated (il progetto \u00e8 recentemente stato venduto<\/a><\/noindex> alla societ\u00e0 Apilayer GmbH) ha accolto<\/a><\/noindex>, sebbene l'analisi JSON sia un grosso problema, non considera una buona idea aggiungere parser esterni, poich\u00e9 uno dei principali vantaggi dello script \u00e8 l'assenza di dipendenze esterne. Attualmente \u00e8 occupato, ma spera di dedicare attenzione alla risoluzione del problema nei prossimi giorni. Tra i piani c'\u00e8 la rielaborazione del parser JSON o l'integrazione di un parser gi\u00e0 pronto in shell \u2014 JSON.sh<\/a><\/noindex>.<\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

Sebastian Krause \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u043b \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u0441\u0442\u0440\u0430\u043d\u043d\u043e\u0439 \u043d\u0435\u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u0438 \u0441 \u0441\u0435\u0440\u0432\u0438\u0441\u043e\u043c Bypass \u0441\u043a\u0440\u0438\u043f\u0442\u0430 dehydrated, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u0434\u043b\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f TLS-\u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0432 \u043f\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0443 ACME. \u0421 Bypass \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0442 \u0438 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u044b\u0439 \u043a\u043b\u0438\u0435\u043d\u0442, \u0438 uacme, \u043d\u043e \u043d\u0435 dehydrated 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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-87101","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47 Trovata la causa dei problemi di dehydrated con i server ACME diversi da LetsEncrypt | ProHoster","description":"Sebastian Krause ha identificato l'origine di una strana incompatibilit\u00e0 con il 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