IMAP yokugcina yokhuseleko

Ngenxa ukwanda kolwazi technology iba ngumbandela obalulekileyo ukhuseleko. Kwaye kufuneka ukuba sisebenze ngokusebenzisa kwiinkalo ezahlukeneyo ngokuphathelele kuphuhliso ezahlukeneyo. Apha, umzekelo, ukhuseleko IMAP - ntoni na? ethembekileyo kangakanani iProtokholi yoFikelelo kwiMiyalezo ye-Intanethi? Yeyiphi ukuba iadvanteji, yintoni iphuhlisa, yintoni le iinguqulelo ezahlukileyo kunye ndlela isebenza - oku ngokubalisa emfutshane imixholo nqaku, ngalo ngaba niqhawula ukuqalisa ngoku.

Yintoni IMAP?

ukhuseleko imbalelwano kubalulekile ngenxa yokuba isenokuba ulwazi oluxabisekileyo. Le protocol lisetyenziswa kwi umaleko isicelo ukubonelela ukufikelela kwi data ye-imeyili kuphela abo bantu kufuneka bafumane oko. Kuye kwasungulwa ngokusekelwe TCP kwaye usebenzisa iimfuno zabo 143 port. IMAP kuvumela umsebenzisi ukuba ukusebenza kunye Mail, apho ibekwe kwi umncedisi ethile engundoqo. Inkqubo esebenzisa lo protocol, wenza izenzo ayimfuneko ukwenzela ukunika uluvo lokuba yonke imbalelwano into kwikhompyutha lomsebenzisi. ingasetyenziswa Umqulu eliphezulu mithwalo umncedisi ezizodwa IMAP. Ukuphululwa oonobumba ayifuni iifayile transfer rhoqo ukuba uxhuluma, apho kukho imixholo. Kodwa oku kuphela protocol into esetyenziswa iinkonzo zeposi. Umzekelo, ukuba ukuthumela ukusetyenziswa umyalezo SMTP, njengoko iqela kuthunyelwa ukhuseleko IMAP siqinisekiso ngokupheleleyo. Kukho semngciphekweni ezaziwayo.

yoko IMAP protocol ndlela?

Kuye kuphuhliswa eyenye POP3. Yonke le nto yaqala ngenxa iintsilelo wamva. Ngoko ke, oko akuthethi ukuba izakhono zokulawula, siyashukuma, yaye zigcina imiyalezo kumncedisi. Oko kungenxa kweli IMAP protocol iye yaphuhliswa esifundisa ithuba lokufumana i-imeyili kwiindawo ezahlukeneyo ngokugcina data kwi kumncedisi wobekelo kude.

Izinto eziluncedo phezu POP3

Kwakutheni ukuze kusetyenziswe lo protocol? Isibakala sokuba linikeza IMAP ye-imeyile, ukongeza koku kungentla, kodwa kukho inani eziluncedo:

1. Musa uyeke de esebenzayo interface yomsebenzisi.
2. Imiyalezo ikotshelwa kuphela xa kukho iimfuno ezinxulumene ukusuka client.
3. Ngamana kanyekanye ukufikelela abantu abaliqela, ngamnye kubo uya kukwazi ukugcina umkhondo lonke utshintsho olwenzileyo.
4. Umxhamli uyakwazi ukuyila, ulungise, kwaye ukucima igama iibhokisi, kwaye ukuhambisa imiyalezo phakathi kwabo. Kwakhona, ukuba ngaba une IMAP lolwandiso 4 Access Uluhlu Control, unako utshintshe iimvume.
5. Unga ukulandelela ubume umyalezo (ilesiwe, kususiwe, wathumela impendulo, njalo njalo). iinkcukacha izenzo ezinjalo zibizwa ngokuba indwe kwaye zigcinwa kwi abancedisi.
6. Fumana imiyalezo lisoloko izakwenziwa kumncedisi kwaye kukho yindlela ecacileyo ukuze kwandiswe.

Imiyalezo kunye neziphumo zazo

IMAP inikeza umsebenzi zokhuseleko kuphela umyalezo, nabo Awudingi iipakethi kunye iiheader ezikhethekileyo. Ngamnye kubo iimpawu zayo. Baya singachazwa ngamnye okanye kunye nabanye. Okwangoku, kukho amathandathu iintlelo IMAP protocol, kodwa phantse kusoloko kusetyenziswa kuphela abokugqibela babo.

UID

umyalezo nganye ufumana ikhowudi bit-32. Ukuze oku wongezelela into ebonakalisayo eyahlukileyo. Bebonke bakha ulandelelwano bit-64, nto leyo efunekayo ukuchonga umyalezo. Nantso ukhuseleko IMAP. I kamva Kwathi, i ebaluleke ngakumbi kukuba UID. Le parameter lisetyenziswa ikhowudi impendulo xa ukhetha leposi. Akaphindi ukutshintsha ngexesha leseshoni okanye phakathi kwabo. Ukuba iimeko yobugcisa zifuna ukuhlela le parameter, i-UID kufuneka ibe ngaphezulu kuno ngaphambili. Isetyenziselwe ukudluliselwa data i IMAP port efanayo.

Inani lothotho inani umyalezo

Kuthathela mnye. Inani lomyalezo ngamnye okulandelayo incremented nge-1, njengoko kuthelekiswa engaphambili. An umahluko ebalulekileyo ukusuka yeposi ukuba uyakwazi ukutshintsha ngexesha uxhulumaniso leseshoni: umzekelo, xa ususa ngokupheleleyo imeyili.

yenarha Posts

Olu phawu ivela njenge uluhlu apho kukho unothi okanye ngaphezulu iimpawu ogama leyo zingqamene ngolwazi esisiseko. Iintlobo IMAP 4.1 ezimbini yenarha ziye zaziswa. Ukuze asebenze okwethutyana (ngexesha leseshoni), okanye ibe sisigxina. System ebizwa iflegi, igama apho ichazwe protocol incazelo. Bonke Kufuneka siqale \. Okwangoku akukho iindwe nkqubo ziye zachongwa:

1. \ NjengeBoniweyo - myalezo ufunde;
2. \ Iimpendulo - ukuthumela impendulo;
3. \ Kutshanje - umyalezo wabonakala ngexesha intlanganiso yangoku;
4. \ Draft - wamiswa njenge uyilo;
5. \ Umkhosi - umsebenzisi ayimakishileyo umyalezo ibalulekile;
6. \ Ususe - kude.

Umhla lwangaphakathi kunye nexesha umyalezo

Indlela ukuchaza apho kuza kufuneka ibe phakathi kwezi parameters? Ukuba umyalezo unikelwa ngokusebenzisa SMTP protocol, oko kuthathwe ixesha nomhla kwindawo yokugqibela. Ukuba usebenzisa i ikopi umyalelo, i parameters esetyenziswa yi kumthumeli. Uyakwazi zingacwangciswa kunye nexesha kunye nomhla - kuba oku ukusebenzisa i ufakelo umyalelo.

Iseva kunye client intetho

Xa usebenzisa unxibelelwano IMAP kwenzeka ngenxa ekusekeni umgaqo uhanjiselo-server. Ngoko ke, okokuqala zonke ngokwakhe uthumela imiyalelo, kwaye eyesibini ithumela idata Ziyacelwa kwakunye nolwazi malunga nokwenziwa kwesicelo. Yonke imiyalezo ngokohlobo umtya ukuba kukho nolandelelwano olulodwa. Ukwenziwa zonke iinkqubo iqala ngokusebenzisa amaqela client. Babona ngenxa ezizodwa isimaphambili isazisi (leyo isebenza umtya omfutshane exube), ekuthiwa inkampani. Iqela ngalinye inombolo yaso eyodwa.

Mhlawumbi iimeko ezimbini idatha ethunyelwe ngumxhasi, azikho ngokupheleleyo. Ngayo Lokuqala - ikuhluza inikwa kunye nekhowudi ukuba inani octets obakhoyo Troc ngaphambili uzimisele. Okwesibini - ifuna impendulo evela kwiseva. Kuzo zombini ezi meko, umxhasi ifumana isicelo koqhubekeko elo qela, ngokuyimfuneko iqala nale umlinganiswa njenge +. Kwimeko apho kufunyenwe uhlobo oluthile transfer kufuneka mayizaliswe data, kungenjalo kuya kuba lula ukuqala inkqubo entsha. Ukufunda, uhlalutyo, parameters ukhetho kunye ugqithiselo lweengcombolo iseva protocol lwenziwa yi the receiver. Xa igqityiwe inkqubo umyalelo, umxhasi sithunyelwa impendulo kwesi saziso. Ulwazi oko akubonisi ukuzaliswa imiyalelo enikwe kunye isimaphambili *. Ibizwa iimpendulo obungu-. Practice zokuthumela abancedisi data njenge njengempendulo kwisicelo client okanye ngenyathelo elilelayo. format yabo ezimeleyo isizathu sokuba ibithunyelwe.

Yaye yintoni na enokuthethwa iinkonzo ezithandwayo, ezifana Gmail? izilungiselelo IMAP abasebenzisi eziqhelekileyo azifumaneki, kodwa ungenza xa kuthunyelwa ileta kusetyenziswa client okhethekileyo. Kodwa oku nje hamba nje ukubhala.

Kwaye yintoni ngokwenene impendulo kuyimfuneko? Athi malunga impumelelo / ukungaphumeleli ulwazi. Impendulo lisoloko lisetyenziswa ukuba label efanayo umthengi uye wasebenzisa iqela kuphehlelelwa inkqubo. Ngoko ke kunokwenzeka transfer multithreading data, kwaye baya mazingabhidaniswa ngokwabo. iintlobo ezintathu impendulo evela kwiseva yayenzelwe ukucacisa le meko:

1. kwenziwe ngempumelelo.
2. Fail.
3. IMAP imposiso protocol (kwenzeka xa umyalelo engaziwayo uyasetyenziswa, okanye iseva amkele ukuba kukho ingxaki syntax).

Client osemqoka kukuba kufuneka uhlale salungiselela ukujongana nayo nayiphi na impendulo oza kuye. Ezi kufuneka ukuba ibhalwe ngendlela yokuba umthengi unako ukuzisebenzisa ngqo, ukuthumela umncedisi lenginginya ngokungeyomfuneko. Bona ngathi unako Gmail. izicwangciso IMAP ezinokulungiswa okanye kutshintshwe ngenxa iinkonzo mail isebenze ebanzi.

isiphelo

Le protocol yokhuseleko unako ukuphucula kakhulu ukuthembeka data, ize isiqinisekiso kakhulu ukuba umntu wesithathu akayi kuba nako ukufikelela kulwazi. Kodwa ke oku akuthethi ukuba umntu akakwazi ukufunda le ncwadi. Isecicini uhlala umncedisi, kwaye umsebenzisi ngenxa zokwazisa low malunga maqhinga amaqhinga uyakwenza kuzo zonke iinkcukacha eziyimfuneko ukuze bafumane iposi.