Zn Tuesday 22 May 12 Zn Pharo Conference May 2012 Sven Van - - PowerPoint PPT Presentation

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Zn Tuesday 22 May 12 Zn Pharo Conference May 2012 Sven Van - - PowerPoint PPT Presentation

Feb 20, 2024 179 likes •709 views

Zn Tuesday 22 May 12 Zn Pharo Conference May 2012 Sven Van Caekenberghe Tuesday 22 May 12 Zinc HTTP Components Tuesday 22 May 12 started Sept 2010 included in Pharo 1.3, 1.4, 2.0 Tuesday 22 May 12 WWW HTTP Tuesday 22 May 12 [ | ]

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Zn

Tuesday 22 May 12
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Zn

Pharo Conference May 2012 Sven Van Caekenberghe

Tuesday 22 May 12
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Zinc

HTTP

Components

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started Sept 2010 included in Pharo 1.3, 1.4, 2.0

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HTTP WWW

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[ | ]

Understandability

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HTTP

Framework

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Client / Server

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Request Response Client Server

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Model

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ZnRequest ZnResponse ZnClient ZnServer

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ZnRequest

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ZnRequest

ZnRequestLine ZnHeaders ZnEntity

ZnMessage

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ZnRequest

ZnRequestLine ZnHeaders

ZnMessage

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ZnRequest

ZnRequestLine Verb URI ZnHeaders key:value * ZnEntity type/length/content

ZnMessage

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ZnResponse

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ZnRespone

ZnStatusLine ZnHeaders ZnEntity

ZnMessage

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ZnResponse

ZnStatusLine ZnHeaders

ZnMessage

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ZnResponse

ZnStatusLine Code Reason ZnHeaders key:value * ZnEntity type/length/content

ZnMessage

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example

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ZnClient new get: ‘http://zn.stfx.eu/zn/small.html’.

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ZnRequest

GET /zn/small.html HTTP/1.1 Host: zn.stfx.eu User-Agent: Zinc...

ZnMessage

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ZnResponse

HTTP/1.1 200 OK Date: Tue, 08 May.. Server: Zinc... text/html, 113B <html>...</html>

ZnMessage

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Framework

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Core

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Zinc-HTTP-Core

  • ZnMessage
  • ZnRequest
  • ZnResponse
  • ZnHeaders
  • ZnRequestLine
  • ZnStatusLine
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Zinc-HTTP-Core

  • ZnEntity
  • ZnStringEntity
  • ZnByteArrayEntity
  • ZnStreamingEntity
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Zinc-HTTP-Core

  • ZnEntity
  • ZnMultiPartFormDataEntity
  • ZnApplicationFormUrlEncodedEntity
  • ZnMimePart
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Support

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Zinc-HTTP-Support

  • ZnUrl
  • ZnMimeType
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Zinc-HTTP-Support

  • Networking
  • Authentication & Authorization
  • Sessions, Cookies
  • Constants, Parameters, Settings
  • Utils
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Streaming

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Zinc-HTTP-Streaming

  • Binary IO
  • Bivalent Output
  • Character Encoding/Decoding
  • Chunked, Gzip Transfer
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Exceptions

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Zinc-HTTP-Exceptions

  • Protocol specific
  • Implementation Limits
  • Parsing Errors
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Logging

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Zinc-HTTP-Logging

  • Announcement based
  • Destinations
  • Transcript
  • File
  • Stdout
  • Memory
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Client

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Zinc-HTTP-Client-Server

  • ZnClient
  • build requests
  • execute requests
  • process responses
  • manage state
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Correct HTTP Client Use

  • ZnClient offers
  • URI construction
  • error handling
  • retry management
  • response handling
  • accept/content-type matching
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MCHttpRepository>>allFileNames | index | self displayProgress: 'Updating ', self description during: [ index := ZnClient new systemPolicy; beOneShot; signalProgress: true; accept: ZnMimeType text; ifFail: [ :exception | self error: 'Could not access ', location, ': ', exception printString ]; url: self locationWithTrailingSlash; queryAt: 'C' put: 'M;O=D'; username: self user password: self password; get ]. ^ self parseFileNamesFromStream: index readStream

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Smalltalk HTTP Scripting

  • ZnClient does
  • streaming downloads & uploads
  • follows redirects
  • write/read content representations
  • proxies, cookies, sessions
  • authentication, login, ...
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Server

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Zinc-HTTP-Client-Server

  • ZnServer
  • run protocol
  • infrastructure
  • delegate #handleRequest:
  • delegate #authenticateRequest:do:
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Zinc-HTTP-Client-Server

  • ZnServer
  • ZnDefaultServerDelegate
  • ZnStaticFileServerDelegate
  • ZnMonticelloServerDelegate
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Seaside

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ZnZincServerAdaptor default in/for Pharo

complete Seaside3 functionality efficient binary data transfer

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Documentation

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Zn Paper / PBE2 Chapter Class / Method Comments 220+ Unit & Functional Tests QA = CI + IDE + Production

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http://zn.stfx.eu

Zinc HTTP Components

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Zn

May the source be with you

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Zn

Tuesday 22 May 12