{"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\/sk\/blog\/news\/najdena-prichina-problem-dehydrated-s-acme-serverami-otlichnymi-ot-letsencrypt","title":{"rendered":"N\u00e1jden\u00e1 pr\u00ed\u010dina probl\u00e9mov dehydrated s ACME servermi, in\u00fdmi ako LetsEncrypt","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Sebastian Krause ur\u010dil<\/a><\/noindex> zdroj zvl\u00e1\u0161tnej nekompatibility so slu\u017ebou Ob\u00eds\u0165<\/a><\/noindex> skript dehydrated<\/a><\/noindex>, ktor\u00fd sa pou\u017e\u00edva na automatiz\u00e1ciu z\u00edskavania TLS certifik\u00e1tov pomocou protokolu ACME. S Bypass funguj\u00fa aj referen\u010dn\u00fd klient a uacme, ale nie dehydrated (presnej\u0161ie, ten tie\u017e s niektor\u00fdmi obch\u00e1dzkami fungoval, ale v\u00fdhradne v re\u017eime dns-1).<\/p>\n

Pr\u00ed\u010dina sa uk\u00e1zala by\u0165 trivi\u00e1lna: namiesto toho, aby autor dehydrated skuto\u010dne spracoval odpove\u010f vo form\u00e1te JSON, pou\u017eil \u0161pecifick\u00fa vlastnos\u0165 form\u00e1tovania konkr\u00e9tneho JSON v\u00fdstupu od slu\u017eby Let’s Encrypt a vykonal spracovanie pomocou regul\u00e1rneho v\u00fdrazu. Ale Bypass vracia nie pekne naform\u00e1tovan\u00fd, ale minifikovan\u00fd JSON, a pou\u017eit\u00fd regul\u00e1rny v\u00fdraz<\/a><\/noindex> nefungoval. Uveden\u00fd pr\u00edstup nevylu\u010duje vznik probl\u00e9mov aj s LetsEncrypt, ak t\u00e1to slu\u017eba v bud\u00facnosti bez varovania zmen\u00ed form\u00e1t v\u00fdstupu, pri\u010dom zostane v r\u00e1mci ofici\u00e1lneho protokolu.<\/p>\n

Pri diskusii o probl\u00e9me bolo navrhnut\u00e9 pou\u017ei\u0165 extern\u00fd JSON parser, ako napr\u00edklad json_pp<\/a><\/noindex> alebo jq<\/a><\/noindex> (prida\u0165 do pipe ‘jq -r «.authorizations | .[]»‘ pre spr\u00e1vne spracovanie).
\nNev\u00fdhodou tak\u00e9ho pr\u00edstupu je rozmazanie my\u0161lienky ob\u00eds\u0165 sa minim\u00e1lnymi a \u013eahko overite\u013en\u00fdmi prostriedkami, ako aj probl\u00e9my s spracovan\u00edm ch\u00fdb.<\/p>\n

Autor projektu dehydrated (projekt bol ned\u00e1vno predan\u00fd<\/a><\/noindex> spolo\u010dnosti Apilayer GmbH) s\u00fahlasil<\/a><\/noindex>, \u017ee spracovanie JSON je ve\u013ek\u00fd probl\u00e9m, ale neprid\u00e1va\u0165 extern\u00e9 parsery nepova\u017euje za dobr\u00fd n\u00e1pad, preto\u017ee jednou z k\u013e\u00fa\u010dov\u00fdch prednost\u00ed skriptu je absencia z\u00e1vislosti na extern\u00fdch komponentoch. V s\u00fa\u010dasnosti je zanepr\u00e1zdnen\u00fd, ale d\u00fafa, \u017ee sa v najbli\u017e\u0161\u00edch nieko\u013ek\u00fdch d\u0148och bude m\u00f4c\u0165 venova\u0165 rie\u0161eniu probl\u00e9mu. V pl\u00e1ne m\u00e1 prepracovanie parseru JSON alebo integr\u00e1ciu hotov\u00e9ho parsera v jazyku shell — JSON.sh<\/a><\/noindex>.<\/p>\n

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

Zdroj: 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 (\u0442\u043e\u0447\u043d\u0435\u0435, \u043e\u043d \u0442\u043e\u0436\u0435 \u0441 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u043c\u0438 \u043e\u0431\u0445\u043e\u0434\u043d\u044b\u043c\u0438 \u043c\u0430\u043d\u0451\u0432\u0440\u0430\u043c\u0438 \u0437\u0430\u0440\u0430\u0431\u043e\u0442\u0430\u043b, \u043d\u043e \u0438\u0441\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 dns-1). \u041f\u0440\u0438\u0447\u0438\u043d\u0430 \u043e\u043a\u0430\u0437\u0430\u043b\u0430\u0441\u044c \u0431\u0430\u043d\u0430\u043b\u044c\u043d\u0430: \u0432\u043c\u0435\u0441\u0442\u043e \u0442\u043e\u0433\u043e \u0447\u0442\u043e\u0431\u044b \u0440\u0430\u0437\u0431\u0438\u0440\u0430\u0442\u044c \u043e\u0442\u0432\u0435\u0442 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 JSON \u043f\u043e […]<\/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\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\udd47N\u00e1jden\u00e1 pr\u00ed\u010dina probl\u00e9mov dehydrated so ACME servermi, ktor\u00e9 nie s\u00fa LetsEncrypt | ProHoster","description":"Sebastian Krause ur\u010dil zdroj zvl\u00e1\u0161tnej nekompatibility so 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