{"id":92099,"date":"2020-08-22T19:42:21","date_gmt":"2020-08-22T17:42:21","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dlya-chrome-razvivaetsya-api-dlya-pryamyh-tcp-i-udp-kommunikaczij"},"modified":"2020-08-22T19:42:21","modified_gmt":"2020-08-22T17:42:21","slug":"dlya-chrome-razvivaetsya-api-dlya-pryamyh-tcp-i-udp-kommunikaczij","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/dlya-chrome-razvivaetsya-api-dlya-pryamyh-tcp-i-udp-kommunikaczij","title":{"rendered":"Chrome'ile arendatakse API-d otsesteks TCP ja UDP suhtlusteks.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Google masstoodangut<\/a><\/noindex> uue API rakendamine Chrome'is Raw Sockets<\/a><\/noindex>, v\u00f5imaldades veebirakendustel luua otseseid v\u00f5rgu\u00fchendusi TCP ja UDP protokollide abil. 2015. aastal tegi W3C konsortsium katse standardiseerida API «TCP ja UDP Socket<\/a><\/noindex>«, kuid t\u00f6\u00f6r\u00fchma osaliste vahel ei saavutatud konsensust ning selle API arendamine peatati.<\/p>\n

Uue API lisamise vajadus tuleneb v\u00f5imalusest suhelda v\u00f5rgu seadmetega, mis kasutavad oma protokolle, t\u00f6\u00f6tades TCP ja UDP peal ning ei toeta suhelda HTTPS-i v\u00f5i WebSockets'i kaudu. T\u00e4heldatakse, et Raw Sockets API t\u00e4iendab juba olemasolevaid madala taseme API-sid brauseris, nagu WebUSB, WebMIDI ja WebBluetooth, mis v\u00f5imaldavad suhelda kohalike seadmetega.<\/p>\n

API Raw Sockets turvalisuse negatiivsete m\u00f5jude v\u00e4ltimiseks lubab v\u00f5rgu\u00fchendusi ainult kasutaja n\u00f5usolekul ja piiratud loendiga lubatud hostidest. Kasutaja peab uue hostiga \u00fchenduse loomise esimest katset selgelt kinnitama. Spetsiaalse lipu abil saab kasutaja keelata operatsiooni kordusklientide kinnitamise v\u00e4ljundi korduvate \u00fchenduste jaoks sama hostiga. DDoS-r\u00fcnnakute v\u00e4ltimiseks on Raw Sockets kaudu tehtavate p\u00e4ringute intensiivsus piiratud ning p\u00e4ringute saatmine on v\u00f5imalik ainult p\u00e4rast kasutaja suhtlemist lehega. Kasutaja poolt mitteheakskiidetud hostidest saadud UDP-paketid j\u00e4\u00e4vad t\u00e4helepanuta ja ei j\u00f5ua veebirakendusse.<\/p>\n

Esialgne rakendus ei h\u00f5lma kuulamisportide loomist, kuid tulevikus ei v\u00e4listata sissetulevate \u00fchenduste vastuv\u00f5tmise k\u00f5nede v\u00f5imalust localhost'i v\u00f5i tuntud hostide nimekirja kaudu. Samuti mainitakse vajadust kaitsta 'DNS rebinding<\/a><\/noindex>» rakenduste eest (r\u00fcndaja v\u00f5ib DNS-i tasandil muuta IP-aadressi kasutaja heakskiidetud domeeninime jaoks ja p\u00e4\u00e4seda juurde muudele hostidele). Plaanis on blokeerida juurdep\u00e4\u00e4s domeenidele, mis lahendatakse 127.0.0.0\/8 ja intraneti v\u00f5rku (localhost'ile suunatud p\u00e4ringud plaanitakse lubada ainult siis, kui IP-aadress sisestatakse kinnituse vormis selgelt).<\/p>\n

Uue API rakendamisega kaasnevad riskide seas on m\u00e4rgitud selle v\u00f5imalik vastuv\u00f5tmatus teiste brauserite tootjate seas, mis v\u00f5ib p\u00f5hjustada \u00fchilduvusprobleeme. Mozilla Gecko'i ja WebKit'i mootorite arendajad on siiamaani moodustanud<\/a><\/noindex> oma seisukoha seoses Raw Sockets API v\u00f5imaliku rakendamisega, kuid Mozilla on varem juba pakkunud sarnast API-d<\/a><\/noindex>. Kui Raw Sockets API esimeses etapis kinnitatakse, plaanitakse see aktiveerida Chrome OS-is ja seej\u00e4rel pakkuda Chrome'i kasutajatele muudes s\u00fcsteemides.<\/p>\n

Veebiarendajad positiivselt<\/a><\/noindex> arvustasid uut API-d ja pakkusid palju uusi ideid selle kasutamiseks valdkondades, kus API XMLHttpRequest, WebSocket ja WebRTC ei ole piisavad (alates brauserikliendide loomisest SSH, RDP, IMAP, SMTP, IRC ja printimisprotokollide jaoks kuni hajutatud P2P-s\u00fcsteemide arendamiseni DHT (Distributed Hash Table), IPFS-i toe juurde ja IoT-seadmete spetsiifiliste protokollidega suhtlemiseni).<\/p>\n

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

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

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