"{ Encoding: utf8 }"

"{ Package: 'stx:goodies/monticello' }"

"{ NameSpace: Smalltalk }"

MCFileBasedRepository subclass:#MCHttpRepository

	instanceVariableNames:'location user password readerCache'

	classVariableNames:''

	poolDictionaries:''

	category:'SCM-Monticello-RemoteRepositories'

!

!MCHttpRepository class methodsFor:'documentation'!

documentation

"

    I am general http repository for monticello.

    I support the general protocol for listing files in a remote repository.

"

! !

!MCHttpRepository class methodsFor:'initialization'!

clearPasswords

	self allSubInstancesDo: [:ea | ea password: ''].

! !

!MCHttpRepository class methodsFor:'instance creation'!

basicFromUrl: aZnUrl

	^ aZnUrl hasUsername

		ifFalse: [ self location: aZnUrl location ]

		ifTrue: [ (self repositoryClassFor: aZnUrl location) new

				location: aZnUrl location;

				user: aZnUrl username;

				password: aZnUrl password;

				yourself  ]

!

location: location

	^ MCServerRegistry uniqueInstance 

		repositoryAt: location credentialsDo: [ :username :password |

			(self repositoryClassFor: location) new

				location: location;

				user: username;

				password: password;

				yourself ]

!

location: location user: user password: password

	^ self new

		location: location;

		user: user;

		password: password

!

pharoInboxRepository

	^ self location: 'http://smalltalkhub.com/mc/Pharo/Pharo60Inbox/main'.

!

pharoRepository

	^ self location: 'http://smalltalkhub.com/mc/Pharo/Pharo60/main'.

!

project: aProjectIdentifier

	^ self location: self baseURL, aProjectIdentifier

!

repositoryClassFor: location

	MCHttpRepository subclassesDo: [ :subclass | 

		(subclass isResponsibleFor: location)

			ifTrue: [ ^ subclass ]].

	^ MCHttpRepository

! !

!MCHttpRepository class methodsFor:'*Komitter-Models'!

pharoLocations

	"Answer the locations for both pharo and pharo inbox repositories.

	No commit should actually be pushed directly there"

	^ #('http://smalltalkhub.com/mc/Pharo/Pharo60/main' 

		'http://smalltalkhub.com/mc/Pharo/Pharo60/main/' 

		'http://smalltalkhub.com/mc/Pharo/Pharo60Inbox/main'

		'http://smalltalkhub.com/mc/Pharo/Pharo60Inbox/main/'

		'http://smalltalkhub.com/mc/Pharo/Pharo50Inbox/main'

		'http://smalltalkhub.com/mc/Pharo/Pharo50Inbox/main/')

! !

!MCHttpRepository class methodsFor:'*MonticelloGUI'!

fillInTheBlankRequest

	^ 'HTTP Repository:'

!

morphicConfigure

	^ self fillInTheBlankConfigure

! !

!MCHttpRepository class methodsFor:'accessing'!

baseURL

	^ ''

!

urlSchemes

	^ #(http https)

! !

!MCHttpRepository class methodsFor:'queries'!

creationTemplate

	^self creationTemplateLocation: 'http://www.squeaksource.com/'

		user: 'squeak'

		password: 'squeak'

!

creationTemplateLocation: location user: user password: password

        ^

self name,'

        location: %1

        user: %2

        password: %3' 

            bindWith: location storeString 

            with: user storeString

            with: password storeString

    "Modified: / 16-09-2010 / 14:34:12 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 26-08-2018 / 14:28:47 / Claus Gittinger"

!

description

	^ 'HTTP'

! !

!MCHttpRepository class methodsFor:'testing'!

isResponsibleFor: aURLString

	"Override in subclasses to enable custom instances for certain URLs"

	^ true

! !

!MCHttpRepository methodsFor:'*Komitter-Models'!

isPrivatePharoRepository

	^ self class pharoLocations includes: self location

!

isRemote

	^ self isPrivatePharoRepository not

!

koRemote

	^ KomitHttpRemote new

		remote: self;

		yourself

! !

!MCHttpRepository methodsFor:'*metacello-mc'!

asRepositorySpecFor: aMetacelloMCProject

	^(aMetacelloMCProject repositorySpec)

		description:  self description;

	 	type: 'http';

		yourself

! !

!MCHttpRepository methodsFor:'accessing'!

credentials

	^ MCServerCredentials user: self user password: self password

!

credentials: mcServerCredentials

	self user: mcServerCredentials username.

	self password: mcServerCredentials password.

!

location

      ^location 

!

location: aUrlString

	location := aUrlString

!

locationWithTrailingSlash

        ^ (self location endsWith: '/')

                ifTrue: [self location]

                ifFalse: [self location, '/']

    "Modified: / 26-08-2018 / 16:16:22 / Claus Gittinger"

!

password

        self userAndPasswordFromSettingsDo: [:usr :pwd | ^pwd].

        self user isEmpty ifTrue: [^password ? ''].

        [password isEmpty] whileTrue: [

                | answer dialog |

                dialog := UIManager isNil ifTrue:[Dialog] ifFalse:[ UIManager default ].

                "Give the user a chance to change the login"

                answer := dialog request: 'User name for ' translated, String cr, self location

                        initialAnswer: self user.

                answer isEmpty

                        ifTrue: [^password]

                        ifFalse: [self user: answer].

                password := UIManager default requestPassword: 'Password for' translated, ' "', self user, '" ', 'at ' translated, String cr, self location.

        ].

        ^ password

    "Modified: / 26-08-2018 / 16:16:29 / Claus Gittinger"

!

password: passwordString

	password := passwordString

!

project

	"Return a project name"

	^ (self location splitOn: $/) last

!

user

	self userAndPasswordFromSettingsDo: [:usr :pwd | ^usr].

	"not in settings"

	^user

!

user: userString

	user := userString

! !

!MCHttpRepository methodsFor:'actions'!

parseFileNamesFromStream: aStream

	| names fullName |

	names := OrderedCollection new.

	[aStream atEnd] whileFalse:

		[[aStream upTo: $<. {$a. $A. nil} includes: aStream next] whileFalse.

		aStream upTo: $".

		aStream atEnd ifFalse: [

			fullName := aStream upTo: $".

			names add: fullName urlDecoded ]].

	^ names

!

retryOnCredentialRequest: aBlock

	aBlock	on: MCPermissionDenied do: [ :error | |credentials| 

		credentials := MCCredentialsRequest 

							signalUrl: self location

							username: self user

							password: self password.

		credentials 

			ifNotNil: [ 

				self credentials: credentials.

				^ self retryOnCredentialRequest: aBlock ]]

!

urlForFileNamed: aString

	^ self locationWithTrailingSlash, aString urlEncoded

! !

!MCHttpRepository methodsFor:'displaying'!

displayString

    ^ self location

    "Created: / 14-09-2010 / 23:20:23 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 26-08-2018 / 16:15:38 / Claus Gittinger"

! !

!MCHttpRepository methodsFor:'i/o'!

cacheRawVersionNamed: aString stream: contents

	"directly forward the contents to the cache repository. 

	this avoids and unnecessary serialization step"

	MCCacheRepository uniqueInstance 

		writeStreamForFileNamed: aString 

		replace: true 

		do: [ :s| s nextPutAll: contents ]

!

displayProgress: label during: workBlock

        | nextUpdateTime |

        Smalltalk isSmalltalkX ifTrue:[

            workBlock value.

        ].

        nextUpdateTime := 0.

        ^UIManager default displayProgress: label 

                from: 0.0 to: 1.0 during:[:bar|

                        [workBlock value] on: HTTPProgress do:[:ex|

                                (ex total == nil or: [ex amount == nil]) ifFalse:[

                                        (nextUpdateTime < Time millisecondClockValue 

                                                or:[ex total = ex amount]) ifTrue:[

                                                        bar current: ex amount asFloat / ex total asFloat.

                                                        nextUpdateTime := Time millisecondClockValue + 100.

                                        ].

                                ].

                                ex resume.

                        ]

                ].

    "Modified: / 26-08-2018 / 14:57:19 / Claus Gittinger"

!

handleUnsuccessfulResponse: aZnResponse

	(#(403 401) includes: aZnResponse code)

		ifTrue: [ MCPermissionDenied signalFor: self ].

	Error signal: 'Could not save version.'

!

loadAllFileNames

        | client response |

        self displayProgress: 'Loading all file names from ', self description during: [

            Smalltalk isSmalltalkX ifTrue:[

                response := HTTPInterface 

                                get: self locationWithTrailingSlash, '?C=M;O=D' 

                                userName: self user 

                                password: self password.

                response responseCode ~= 200 ifTrue: [

                    self error:('Could not access "',self location,'" (',response response asString,')')

                ].

            ] ifFalse:[    

                client := self httpClient.

                client

                        ifFail: [ :exception | 

                                (exception className beginsWith: 'Zn')

                                        ifTrue: [ MCRepositoryError signal: 'Could not access ', self location, ': ', exception printString ]

                                        ifFalse: [ exception pass ] ];

                        url: self locationWithTrailingSlash;

                        queryAt: 'C' put: 'M;O=D';      "legacy that some servers maybe expect"

                        get.

                self assertNonBinaryResponse: client response 

            ].

        ].

        ^ self parseFileNamesFromStream: client contents readStream

    "Modified: / 26-08-2018 / 16:16:11 / Claus Gittinger"

! !

!MCHttpRepository methodsFor:'private'!

asCreationTemplate

        ^self class creationTemplateLocation: self location user: user password: password

    "Modified: / 26-08-2018 / 16:15:28 / Claus Gittinger"

!

assertBinaryResponse: response 

	response contentType isBinary ifFalse: [ 

		MCRepositoryError signal: 'Expected a binary response instead of ', response contentType printString ].

!

assertNonBinaryResponse: response 

    Smalltalk isSmalltalkX ifTrue:[

        response contentType = 'text/plain' ifFalse:[

            Error "MCRepositoryError" signal: 'Did not expect a binary response but got ', response contentType printString 

        ]. 

        ^ self.

    ].    

    response contentType isBinary ifTrue: [ 

        MCRepositoryError signal: 'Did not expect a binary response but got ', response contentType printString 

    ].

    "Modified: / 26-08-2018 / 15:02:39 / Claus Gittinger"

!

entityStreamContents: aBlock

	"Generate output in a buffer because we need the length"

	| stream |

	stream := RWBinaryOrTextStream on: String new.

	aBlock value: stream.

	stream reset.

	^ (ZnStreamingEntity type: ZnMimeType applicationOctetStream)

		stream: stream;

		contentLength: stream size;

		yourself

!

httpClient

	"Return a new, specifically configured instance of the HTTP client for internal use.

	Note how we request GZIP compression and will signal progress."

	^ ZnClient new

		systemPolicy;

		beOneShot;

		username: self user password: self password;

		signalProgress: true;

		yourself

!

userAndPasswordFromSettingsDo: aBlock

        "The mcSettings file in ExternalSettings preferenceDirectory should contain entries for each account:

                account1: *myhost.mydomain* user:password

                account2: *otherhost.mydomain/somerep* dXNlcjpwYXNzd29yZA==

        That is it must start with 'account', followed by anything to distinguish accounts, and a colon. Then comes a match expression for the repository url, and after a space the user:password string.

        To not have the clear text password on your disc, you can base64 encode it:

                        (Base64MimeConverter mimeEncode: 'user:password' readStream) contents

        "

        | entry userAndPassword |

        Settings ifNotNil: [

                Settings keysAndValuesDo: [:key :value |

                        (key asLowercase beginsWith: 'account') ifTrue: [

                                entry := value findTokens: '     '.

                                (entry first match: self location) ifTrue: [

                                        userAndPassword := entry second.

                                        (userAndPassword includes: $:) ifFalse: [

                                                userAndPassword := (Base64MimeConverter mimeDecodeToChars: userAndPassword readStream) contents].

                                        userAndPassword := userAndPassword findTokens: $:.

                                        ^aBlock value: userAndPassword first 

                                                value: userAndPassword second 

                                        ]

                        ]

                ]

        ].

        ^nil

    "Modified: / 26-08-2018 / 16:16:02 / Claus Gittinger"

!

versionReaderForFileNamed: aString

	readerCache ifNil: [readerCache := Dictionary new].

	^ readerCache at: aString ifAbsent:

		[self resizeCache: readerCache.

		super versionReaderForFileNamed: aString do:

			[:r |

			r ifNotNil: [readerCache at: aString put: r]]]

!

versionReaderForFileNamed: aString do: aBlock

    "Modified: / 14-09-2010 / 19:39:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!MCHttpRepository methodsFor:'required'!

allFileNames

        | response |

        response := HTTPInterface 

                        get: self locationWithTrailingSlash, '?C=M;O=D' 

                        userName: self user 

                        password: self password.

        response responseCode ~= 200 

            ifTrue: [self error:('Could not access "',self location,'" (',response response asString,')')].

        ^ self parseFileNamesFromStream: response data readStream

    "Modified: / 14-09-2010 / 19:16:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 07-09-2011 / 12:34:23 / cg"

    "Modified: / 26-08-2018 / 16:15:24 / Claus Gittinger"

!

description

        ^ self location

    "Modified: / 26-08-2018 / 16:15:33 / Claus Gittinger"

!

flushCache

	super flushCache.

	readerCache := nil.

!