New Zealand      w                             Wireless Application P t                             Wi l     A li ti Proto...
WAP: Internet for Mobile Devices                               Wireless Application Protocol but used synonymous to       ...
A WML Example                             <?xml version="1.0"?>                             <!DOCTYPE wml PUBLIC "-//WAPFO...
Challenges                               Internet technology was designed for desktop and larger                          ...
Device Comparison                                       Desktop          Laptop   Mobile                             CPUs ...
Network Comparison                                            Desktop   Laptop   Mobile                             Bandwi...
Main Goals of WAP                               Support a wide range of devices                               Enable devic...
Main Goals of WAP                               Provide an application model for wireless data services that              ...
A WML Example                             <?xml version="1.0"?>                             <!DOCTYPE wml PUBLIC "-//WAPFO...
WML Structure                               WML applications use a card and deck metaphor                               A ...
WML                              Unlike HTML WML is XML Why is this important?                                     HTML,  ...
Simple Web Architecture                                                    HTTP                                           ...
The WAP Architecture                                                                                   HTTP               ...
The WAP Workflow                             1.                             1    The user requests a URL through the WAP b...
New ZealandN                             WSP/WML Encoding                             WSP/WML encoding allows the informat...
The WAP Protocol Stack Revisited                                WAP Device                   WAP Gateway               Web...
Sample WAP Request I                             If-None-Match: "0-6f-3e6cf51a"                             Accept: image/...
Sample WAP Request II                             Accept: application/vnd.wap.coc,application/vnd.wap.wmlc; Type=4360, ima...
Sample WAP Request III                             Accept-Language: en                             Accept: application/vnd...
Sample WAP Request IV                             Accept: application/vnd.wap.wmlc, application/vnd.wap.wmlscriptc, text/h...
Sample WAP Request V                             Accept: text/css, text/x-vcard, text/x-vcalendar, image/gif, image/vnd.wa...
Sample WAP Request VI                             User-Agent: SonyEricssonP990i/R100 Mozilla/4.0 (compatible; MSIE 6.0; Sy...
Serving WAP Content                                File extension                   MIME Type                             ...
The WAP 2.0 Protocol Stack                               WAP Device                                              Web Serve...
Further Reading                               Wireless Application Protocol Architecture Specification                    ...
Resources                               Nokia Mobile Internet Toolkit. This includes a WAP browser and a                  ...
Exercises                               Write a WapEchoServer that echoes the received HTTP                               ...
Upcoming SlideShare
Loading in …5
×

Wap (1)

671 views

Published on

Published in: Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
671
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
14
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Wap (1)

  1. 1. New Zealand w Wireless Application P t Wi l A li ti Protocoll “The reports of my death are greatly exaggerated.”The University of Auckland U A
  2. 2. WAP: Internet for Mobile Devices Wireless Application Protocol but used synonymous to Protocol, Internet for mobile devices What HTML is to the Internet, WML to WAP What JavaScript™ is to the Internet, WML Script to WAP What HTTP is to the Internet, WSP to WAPN Zealand Wireless Session Protocol: HTTP/1.1 functionality and semantics in a compact binary encoding + extensionsNew WAP 2.0 allows HTTP across th wireless & I t 2 0 ll the i l t Internet domains. land ersity of AucklThe Unive
  3. 3. A WML Example <?xml version="1.0"?> <!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.3//EN" "http://www wapforum org/DTD/wml13 dtd"> http://www.wapforum.org/DTD/wml13.dtd > <wml> wmlNew Zealand <card id="MainCard" title="My First WML Card"> <p>N <img src="hello.wbmp" alt="Hello"/> <br/> Hello World! <br/> land ersity of Auckl <a href="click.wml">Click Me here…</a><br/> </p> </card>The Unive </wml>
  4. 4. Challenges Internet technology was designed for desktop and larger computers and medium to high bandwidth, generally reliable data networks. Mass-market, hand-held wireless devices have a constrained computing environment compared to desktop computers.New ZealandN land ersity of AucklThe Unive
  5. 5. Device Comparison Desktop Laptop Mobile CPUs Powerful Less powerfulNew Zealand Memory Large Small Power Mains BatteryN Display Large Small Input Keyboard, Mice Keypad, stylus, land ersity of Auckl touch t hThe Unive
  6. 6. Network Comparison Desktop Laptop Mobile Bandwidth More LessNew Zealand Latency Less MoreN Connection Good Not so good stability land Availability y Good Less predictable p ersity of AucklThe Unive
  7. 7. Main Goals of WAP Support a wide range of devices Enable device personalization and customization, content delivery, delivery and content presentation presentation.New ZealandN land ersity of AucklThe Unive
  8. 8. Main Goals of WAP Provide an application model for wireless data services that utilizes the telephony, mobility, and other unique functions of wireless devices and networks. Leverage existing standards where possible, especially existing and evolving Internet standards.New ZealandN land ersity of AucklThe Unive
  9. 9. A WML Example <?xml version="1.0"?> <!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.3//EN" "http://www wapforum org/DTD/wml13 dtd"> http://www.wapforum.org/DTD/wml13.dtd > <wml> wmlNew Zealand <card id="MainCard" title="My First WML Card"> <p>N <img src="hello.wbmp" alt="Hello"/> <br/> Hello World! <br/> land ersity of Auckl <a href="click.wml">Click Me here…</a><br/> </p> </card>The Unive </wml>
  10. 10. WML Structure WML applications use a card and deck metaphor A user interaction is represented by a card, while a complete task is represented by a deck A deck is the smallest unit of WML a web server can send to a WAP browser, and it contains one or more cards ,New Zealand The browser displays one card at a timeN Card Card land Card ersity of Auckl CardThe Unive
  11. 11. WML Unlike HTML WML is XML Why is this important? HTML, XML. XHTML is XML Is this important? XML.New ZealandN land ersity of AucklThe Unive
  12. 12. Simple Web Architecture HTTP requestNew Zealand HTTP responseN Client/user Origin agent server land ersity of AucklThe Unive
  13. 13. The WAP Architecture HTTP WSP request requestNew Zealand WSP HTTP response p responseN WAP user WAP Origin agent gateway* server land INTERNET ersity of Auckl WIRELESS DOMAIN: WAP DOMAIN: Protocols InternetThe Unive Protocols * WAP 2.0 does not require the gateway, thus enabling the client to talk directly to the server.
  14. 14. The WAP Workflow 1. 1 The user requests a URL through the WAP browser 2. The browser passes the request to the WAP gateway using the WAP protocol 3. The WAP gateway creates a normal HTTP request for the URL and passes to the origin server server.New Zealand 4. The origin servers returns the (possibly WML) content of the URL to the WAP gateway. g yN 5. The WAP gateway encodes the HTTP headers and the content (where applicable) into binary format ( g ( pp ) y (e.g., land ersity of Auckl compiled WML), and transmits on to the WAP browser 6. The WAP browser displays the content (e.g. the firstThe Unive card of the deck)
  15. 15. New ZealandN WSP/WML Encoding WSP/WML encoding allows the information to be transferred in a narrow pipe (i.e. small bandwidth network) without adding extra land latency. y ersity of AucklThe Unive
  16. 16. The WAP Protocol Stack Revisited WAP Device WAP Gateway Web Server WAE WAE WSP WSP HTTP HTTP WTP WTP WTLS WTLS TLS (SSL) TLS (SSL)New Zealand WDP WDP TCP TCP Bearers Bearers IP IPN land ersity of AucklThe Unive WSP is essentially a binary-formatted tokenized version of HTTP designed to operate on low-bandwidth high-latency networks
  17. 17. Sample WAP Request I If-None-Match: "0-6f-3e6cf51a" Accept: image/gif, text/x-vCalendar, image/vnd.wap.wbmp, application/vnd.wap.wmlscriptc, text/x-vCard, application/vnd.wap.wmlc, application/vnd.wap.wbxml, text/vnd.wap.wml, text/vnd.wap.wmlscript, text/vnd wap wmlscript text/plain Accept-Language: en Accept-Charset: US-ASCII, ISO-8859-1, UTF-8, ISO-10646-UCS-2 p profile: http://wap.sonyericssonmobile.com/UAprof/T200.xml p p y pNew Zealand User-Agent: SonyEricssonT200/R101 bearer-indication: 0 accept-application: 1,2N X-Nokia-CONNECTION_MODE: X Nokia CONNECTION MODE: CMODE X-Nokia-BEARER: GPRS X-Nokia-gateway-id: NAWG/3.1/Build52 land Via: WTP/1.1 Vodafone wap FTC ( p (Nokia WAP Gateway 3.1/ECD9/3.1.52), 1.1 vlsp1:9010 y ) p ersity of Auckl (squid/2.5.STABLE3) X-Forwarded-For: 172.27.9.3The Unive
  18. 18. Sample WAP Request II Accept: application/vnd.wap.coc,application/vnd.wap.wmlc; Type=4360, image/gif, p pp p , pp p ; yp , g g , application/vnd.phonecom.im,application/*, application/vnd.wap.slc,application/vnd.wap.sic, application/vnd.wap.multipart.related,application/vnd.phonecom.mmc-wbxml; Type=4364, audio/iMelody, text/x-vCalendar, application/octet-stream, audio/midi, application/vnd.wap.multipart.mixed, application/vnd.wap.wmlc; Level=1.3, application/vnd.openwave.pp,image/vnd.wap.wbmp, pp p ; , pp p pp, g p p, application/vnd.wap.wmlscriptc, application/vnd.uplanet.bearer-choice-wbxml, application/vnd.wap.wmlc; Type=1108,text/x-vCard, application/x-up-device, application/vnd.phonecom.mmc-wbxml, image/vnd.wap.wbmp; Type=0, application/vnd.wap.wmlc, application/vnd.wap.wmlc; Type=4365, text/vnd.wap.wml, text/vnd.wap.co, text/vnd.wap.wmlscript, text/x-wap-wta-wml, text/vnd.wap.sl, p , p , p p, p , p ,New Zealand text/vnd.wap.si, text/vnd.wap.connectivity-xml, text/vnd.wap.channel, text/vnd.wap.co, text/vnd.wap.sl, text/vnd.wap.si, text/vnd.wap.wmlscript, text/plain, text/vnd.wap.wml, text/plain User-Agent: Alcatel-BG3/1.0 UP.Browser/5.0.3.3.11 Accept-Language: en p g gN Accept-Charset: UTF-8 profile: http://www-ccpp-mpd.alcatel.com/files/ALCATEL-BG3_1.0.rdf X-Nokia-CONNECTION_MODE: CMODE land X-Nokia-BEARER: GPRS ersity of Auckl X-Nokia-gateway-id: NAWG/3.1/Build52 Via: WTP/1.1 Vodafone wap LDV (Nokia WAP Gateway 3.1/ECD9/3.1.52), 1.1 vlsp1:9010 (squid/2.5.STABLE3) X-Forwarded-For: 172.26.9.3The Unive
  19. 19. Sample WAP Request III Accept-Language: en Accept: application/vnd.wap.xhtml+xml, application/vnd.wap.wml, application/xhtml+xml, multipart/mixed, application/vnd.wap.multipart.mixed, image/gif, */*, text/x-vcard, text/x- vcalendar, image/vnd.wap.wbmp vcalendar image/vnd wap wbmp Accept-Charset: utf-8, utf-16, iso-8859-1, iso-10646-ucs-2, Shift_JIS User-Agent: SonyEricssonV600i/R2K Browser/SEMC-Browser/4.2 Profile/MIDP-2.0 Configuration/CLDC-1.1 gNew Zealand x-wap-profile: "http://wap.sonyericsson.com/UAprof/V600iR101-3G.xml" Content-Length: 0 X-Nokia-CONNECTION_MODE: TCPN X-Nokia-BEARER: X Nokia BEARER: GPRS X-Nokia-gateway-id: NWG/4.1/Build89 Via: WTP/1.1 Vodafone wap2FTC (Nokia WAP Gateway 4.1/CD13/4.1.89), 1.1 vlsp1:9010 land ( q (squid/2.5.STABLE10) ) ersity of Auckl X-Forwarded-For: 172.27.71.132The Unive
  20. 20. Sample WAP Request IV Accept: application/vnd.wap.wmlc, application/vnd.wap.wmlscriptc, text/html, text/css, application/xhtml+xml, application/vnd.wap.xhtml+xml, application/vnd.wap.multipart.related, application/vnd.wap.multipart.mixed, multipart/mixed, application/vnd.wap.sic, application/vnd.oma.drm.message, application/vnd.phonecom.mmc-wbxml, application/motorola- pp g , pp p , pp mmstemplate, image/gif, image/bmp, image/vnd.wap.wbmp, image/png, image/jpeg, image/ems.userdefined.picture, image/ems.userdefined.animation, image/ems.predefined.animation, audio/bas, audio/imelody, audio/mid, audio/midi, audio/mp3, audio/mpeg, audio/mpeg3, audio/mpg, audio/x-mp3, audio/x-mpeg, audio/x-mpeg3, audio/x-mpg, audio/x-wav, audio/wav, audio/amr, audio/3gpp, p , p g, p g , pg, , , , gpp,New Zealand video/mp4, video/3gpp, application/mtf, application/vnd.oma.drm.message, application/vnd.oma.drm.rights+xml, text/x-vcard, text/x-vcalendar, text/uri-list, text/vnd.sun.j2me.app- descriptor, application/java-archive, application/octet-stream, application/vnd.wap.mms-message, text/plain, text/vnd.wap.wmlscript, text/vnd.wap.wml p , p p, pN accept-application: 2,4 Accept-Charset: UTF-8 User-Agent: MOT-V600i/0E.65.23R MIB/2.2.1 Profile/MIDP-2.0 Configuration/CLDC-1.0 land Accept-Language: en p g g ersity of Auckl X-Nokia-CONNECTION_MODE: CMODE X-Nokia-BEARER: GPRS X-Nokia-gateway-id: NWG/4.1/Build89 Via: WTP/1.1 Vodafone wap2LDV ( p (Nokia WAP Gateway 4.1/CD13/4.1.89), 1.1 vlsp1:9010 y ) pThe Unive (squid/2.5.STABLE10) X-Forwarded-For: 172.26.71.132
  21. 21. Sample WAP Request V Accept: text/css, text/x-vcard, text/x-vcalendar, image/gif, image/vnd.wap.wbmp Accept-Charset: ISO-8859-1, US-ASCII, UTF-8; q=0.8, ISO-10646-UCS-2; q=0.6 Accept-Language: en Cookie2: $Version "1" $Version="1" Accept-Encoding: gzip, deflate User-Agent: Nokia6822/2.0 (4.48) Profile/MIDP-2.0 Configuration/CLDC-1.1 x-wap-profile: "http://nds1.nds.nokia.com/uaprof/N6822r100.xml" pp p pNew Zealand Content-Length: 0 X-Nokia-CONNECTION_MODE: TCP X-Nokia-BEARER: GPRSN X-Nokia-gateway-id: NWG/4 1/Build89 X Nokia gateway id: NWG/4.1/Build89 Via: WTP/1.1 Vodafone wap2FTC (Nokia WAP Gateway 4.1/CD13/4.1.89), 1.1 vlsp1:9010 (squid/2.5.STABLE10) land X-Forwarded-For: 172.27.71.132 ersity of AucklThe Unive
  22. 22. Sample WAP Request VI User-Agent: SonyEricssonP990i/R100 Mozilla/4.0 (compatible; MSIE 6.0; Symbian OS; 306) Opera 8.60 [en] Accept: text/html, application/xml, application/xhtml+xml, multipart/mixed, image/png, image/jpeg, image/gif, image/x-xbitmap, */* text/x vcard text/x-vcalendar, image/jpeg image/gif image/x xbitmap */*, text/x-vcard, text/x vcalendar image/vnd.wap.wbmp Accept-Charset: windows-1252, utf-8, utf-16, iso-8859-1;q=0.6, *;q=0.1 Accept-Encoding: deflate, gzip, x-gzip, identity, *;q=0 p g , g p, g p, y, ;qNew Zealand Pragma: no-cache X-Wap-Profile: "http://wap.sonyericsson.com/UAProf/P990iR100.xml" Content-Length: 0N X-Nokia-CONNECTION_MODE: X Nokia CONNECTION MODE: TCP X-Nokia-BEARER: GPRS X-Nokia-gateway-id: NWG/4.1/Build89 land Via: WTP/1.1 Vodafone wap2FTC ( p (Nokia WAP Gateway 4.1/CD13/4.1.89), 1.1 vlsp1:9010 y ) p ersity of Auckl (squid/2.5.STABLE10) X-Forwarded-For: 172.27.71.132The Unive
  23. 23. Serving WAP Content File extension MIME Type wml text/vnd.wap.wml wmls text/vnd.wap.wmlscript wmlc l application/vnd.wap.wmlc li ti / d lNew Zealand wmlsc application/vnd.wap.wmlscriptcN wbmp image/vnd.wap.wbmp land ersity of Auckl When the server sees these file extensions, it sets the Content-Type entity header to the corresponding MIME type type.The Unive
  24. 24. The WAP 2.0 Protocol Stack WAP Device Web Server WAE WAP Gateway WAE HTTP HTTP HTTP HTTP TLS (SSL) TLS (SSL) TLS (SSL) TLS (SSL) TCP TCP TCP TCPNew Zealand IP IP IP IPN WIRELESS DOMAIN WIRED DOMAIN land ersity of Auckl WAP 2.0 provides support for both WAP 2.0 and WAP 1.x stacks. The two stacks would operate independently; i.e., there won’t be anyThe Unive mixing and matching of protocols in accomplishing an end-to-end transaction.
  25. 25. Further Reading Wireless Application Protocol Architecture Specification Specification. www.WAPForum.org. Wireless Application Environment Defined Media Type Specification. WAP overview on Wikipedia: pNew Zealand http://en.wikipedia.org/wiki/WAPN land ersity of AucklThe Unive
  26. 26. Resources Nokia Mobile Internet Toolkit. This includes a WAP browser and a Toolkit WAP Gateway simulator. Sony Ericsson WAP browser emulator for T68. y OpenWave SDK. This includes an OpenWave WAP browser. SlowView. A free image viewer that supports WBMP images.New ZealandN land ersity of AucklThe Unive
  27. 27. Exercises Write a WapEchoServer that echoes the received HTTP request back to the client. If you have a WAP-capable phone, study the headers it sends. WAP capable Describe the setup required to capture the headers. You want to capture the headers Nokia mobile browser simulator sends to an arbitrary WAP site How can you do it with the site.New Zealand WapEchoServer?N land ersity of AucklThe Unive

×