Ziviso mubrowser rako - chii?

Vakawanda vanoshandisa Internet vari kushamisika: "ziviso imwe browser - chii?" Rinoratidza mumwe werudzii paindaneti, apo kukumbira kutengeserana anosarudza kuva nechepakati Server. Izvi akasiyana nevakomana inoenda data, apo kukumbira kuchinjwa ruzivo ndiye anosarudza mugamuchiri kana nemhosva.

Nokuti ziviso mabasa kazhinji kwakavakirwa mashoko zvaunofarira akaratidza pachine. Ndiro muenzaniso chipeto Bhuku. Client "anonyora kudaro" mashoko "migero" ake siyana akagovera nokuda Server. Pose kugutsikana itsva inowanikwa iri imwe nzira idzodzo, Server anotumira mashoko aya kwaari. Ziviso ari mubrowser dzimwe nguva emulates pokuongorora nzira, kunyanya ezvinhu umo mubvunzo chaiwo hazvibviri - somuenzaniso, pamusoro Websites ari chakakomba kuchengeteka policies kuti zvinoda kurambwa kuuya HTTP / S zvikumbiro.

musimboti oparesheni

Synchronous conferencing uye pakarepo mameseji anowanzoramba mienzaniso kuti akaita ziviso. Chii uye sei kushanda? Chat mashoko uye dzimwe nguva mafaira vari kusundwa kuti anoishandisa nokukurumidza ivo vakagamuchira ne mameseji basa. Both decentralized kuda-to-LVS uye centralized zvirongwa (zvakadai IRC kana XMPP) kubvumira "kungosunda" mafaira. Izvi zvinoreva kuti zita yatumira parura humboo kutapurirana pane wacho.

E-mail zvinogonawo kushanda pamwe ziviso - SMTP dzakati, chaizvoizvo, "kusunda". Kunyange zvakadaro, pakupedzisira "nhano" kubva tsamba Server pakombiyuta kazhinji anoita muedzo-dzakati akafanana POP3 kana IMAP. The IMAP dzakati inosanganisira usimbe-murayiro, izvo rinobvumira Server kuzivisa yeGmail.END_STRONG ane kuuya shoko. Chepakutanga Blackberry aiva akakurumbira mudziyo wokutanga, apo ziviso ave achishingaira kushanda mubrowser. Chii payo midziyo izvi - zvinogona kuonekwa e-mail (nokuti Wireless).

Chii asati?

Mumwe muenzaniso uri PointCast Network aizivikanwa kuma1990. Inopa nhau uye pamusika wemari Data. Zvino Netscape, uye chikumbira kubva Microsoft kuti nokusangana kuva-software kwavo neimwe shanduro Browser wavo, asi haana kumbobvira vafarirwa nevanhu, uye gare gare anyangarika chose. Browsers vakazoroorwa yakatsiva functionality ichi 2000s kuti RSS - magazini ino, apo pane zvakawanda yepamusoro ziviso ari mubrowser. Ndechipi date chipeto - anoziva ose muverengi vanyora.

Other pevara ziviso-chakabatsira padandemutande chikumbiro zvinosanganisira mashoko pamusika Data (vapfuwi mitengo), paIndaneti uye mameseji gadziriro (WebChat), Auktionen, online vachitamba uye mitambo, mitambo vachitamba, vachiongorora inonyaradza uye zvakafanana.

Ziviso pamusoro browser - kuti nhasi?

Ziviso Via IEFT uri nyore dzakati kuti anoshandisa HTTP / 2 kurwira Notifications pakarepo (nokuti kuuya foni mashoko). The dzakati rinobatanidza zvose-chaizvo nguva zviitiko panguva imwe chete, iyo rinobvumira zvimwe zvokufambisa kushandiswa samambure uye redhiyo pfuma. Mumwe-vanorega basa rinobatanidza zviitiko zvose nokuparadzira mafomu avo sezvo vakanga vava kuwanika. Izvi zvinoda mumwe chete chechikamu, nokudaro torega kutambisa nguva uye motokari.

Ziviso mubrowser rako - ndiko kubva waishandiswa pfungwa maonero?

HTTP-ziviso (aizivikanwawo kumhanyira HTTP) ndiye nomazviri nokutumira mashoko kubva Browser nokuda paWeb server. Rinogona kuitwa chero nzira dzakawanda. Kazhinji, paWeb server hakurevi kugumisa kubatana mushure chiziviso wakatumwa kuti nemhosva. PaWeb server anosiya kubatana rakavhurika, uye chiitiko munhu chiitiko chitsva (somuenzaniso, achichinja mashoko akatuma shoko) unoratidzwa pakarepo. Zvikasadaro, chiitiko chacho vachafanira tungamidzana kumusoro kusvikira rinotevera yeGmail.END_STRONG chikumbiro achatorwa.

Most padandemutande servers kupa chikamu ichi uchishandisa CGI (somuenzaniso, Non-parsed Header mumanyoro musi Apache). The dambudziko mashandiro nzira iyi ndiyo chinogumbura hutachiwana Coding. A muenzaniso chaiwo ndiwo ziviso kuti Browser "vakaroorana". Chii pamusoro panzvimbo iyi? Chokutanga ndechokuti mashoko pamusoro kuuya mashoko uye mavanga "Like".

dzimwe nzira

Chimwe mashandiro Rinobatanidzwa ne imwe mhando MIME, iyo inonzi multi-chinoumba kutsiviwa. Wakatanga dzinotaurwa 1995, Netscape, ari Browser "riri nhunzi" anochinja Gwaro pose itsva shanduro pamusoro Server achatorwa. Achiri kunotsigirwa Firefox, Opera, Safari, uye nhasi, asi kwete Internet Explorer. mashandiro Izvi zvinogona kureva HTML-magwaro uye nokuda kudirana mifananidzo Webcam zvikumbiro.

WHATWG Web Applications 1.0 rinosanganisira mashandiro kuti ndehwokuti kushandura zviri nemhosva. Iye yave kuzivikanwa kubva September 1, 2006, apo Opera padandemutande Browser chinozoiswa ino experimental itsva rinonzi Server-SentEvents. Ari parizvino kwezvipimo sechikamu HTML5. In nzira iyi, iyo Server anoshandisa kuramba HTTP kubatana, zvichiguma mhinduro nguva dzose inoramba "akazaruka" (kureva, kubva Server hakumboperi response), zvinobudirira "achivanyengedza" mubrowser rako. Saka, kushanda nguva dzose inoramba iri vene muoti, mushure peji wakadziura zvakazara. The Server ipapo nguva anotuma snippets pamusoro JavaScript kuti dzifambirane peji zvirimo, nokudaro oita ziviso. Tichishandisa nzira iyi, iyo yeGmail.END_STRONG hakudi Java applets kana zvimwe chivhariso-dzi kuchengeta pachena kubatana kuti Server - the yeGmail.END_STRONG rwoga anopiwa ziviso pamusoro pezviitiko itsva kuuya kubva Server. Zvisinei, mumwe chikuru zvakaipira nzira iyi, ndiyo kushaya kuzvidzora maererano nenguva Browser Server. Updating peji iri nguva dzose kwakakodzera kana pane timeout papeji rakashama.

date ndangariro

nomusoro chidobi pacharo hakusi ziviso akakodzera. It chete kunoita kuti kutevedza ziviso mashandiro ari mhoteredzo hazvibviri. Somuenzaniso, uri yakawandirwa kuchengeteka policies nzvimbo kuti zvinoda kuramba kubva kuuya HTTP / S zvikumbiro. Hazvibviri ziviso ari mubrowser (ndiko kuti, uye sei akunoita - ona pamusoro). Panyaya iyi, kuti nemhosva anokumbira mashoko sezvinonyatsoita ari kuipa mubvunzo, asi nokuda zvomurayiro Server havagoni kudavira pakarepo. Kana Server asina ruzivo chero itsva nemhosva kana chikumbiro vakagamuchira - pane kuva kutumira usina mhinduro, chikumbiro anoramba rakavhurika, kudzamara mashoko matsva. Kamwe mashoko akadaro anowanika, pakarepo anotuma HTTP / S pakupindurwa nemhosva, nekuzadzisa rakavhurika kubatana.

Pashure pokugamuchira mutengi kazhinji pakarepo anozivisa chikumbiro chimwe Server mhinduro. Nokudaro, avhareji nguva mhinduro kunonoka (nguva pakati apo mashoko rinova kuwanikwa, uye inotevera yeGmail.END_STRONG chikumbiro) chokuita pakasvika zvikumbiro, izvozvo Kwabviswa.

XML Chigadziko

Ziviso mubrowser rako, kushanda tichibatsirwa nzira iyi, kushandiswa CBOX nemamwe chikumbira Maturo. It anoshandisa XML Chigadziko zvinhu chete-Pixel mafaira AdobeFlash. Pasi kudzorwa yeGmail.END_STRONG JavaScript anovamba TCP kubatana kune unidirectional nodes pamusoro Server. Chikumbiro ichi nyaya anoramba unread, panzvimbo, kuti raiva pedyo nebundu anotuma yeGmail.END_STRONG rakasiyana nemamwe identifier pakarepo. chinhu HTTP chikumbiro chakaitwa ipapo paWeb server, iro rine manzwirwa identifier. The dandemutande Chikumbiro anogona zvino ape shoko yakanyorerwa nemhosva pamusoro yomunharaunda inowanikwa ataure Server, izvo transmits navo Via Flash. Kunakisa nzira ichi ndechokuti anoshandisa dzinongoitika asymmetry ari kuverenga-nyora.

Izvi ndizvo akawanda web-kwakavakirwa mafomu, kusanganisira dzevakurukuri, uye, sezvo zvakaguma dzinovimbisa kumusoro kunyatsoshanda. Sezvo asinganzwisisi kugamuchira mashoko pamusoro ichibviswa nezvigadziko zvadzo, Server hauna kunodiwa kutsvaka outbound TCP kubatana, izvo zvinoita zvibvire pakagadzwa ezviuru mawa kubatana. Saka pane ziviso ari mubrowser pamusoro "Vaunodzidza navo" mune zvimwe pamabasa Site.

Available ziviso Services

Nyaya iyi inowanika pamusoro mabasa akawanda anotsigira yekunwa yeimwe. Sezvo kare akataura, ziviso ari browser - ndiwo mukana wokugamuchira mashoko pakarepo uye Notifications pasina reloading peji,. Services, apo basa iri rinowanikwa, zvinosanganisira:

• Apple ziviso Service.
• Google Cloud mameseji.
• "Vaunodzidza navo".
• Facebook.
• Xtremepush.
• Amazon SNS.