pharo: Update the conversion code

PetitParser has a PPContext in newer versions but the GST code
is older and doesn't have it. Provide an alternative impl.

Provide >>#do: for the SIPVia for Pharo to print the data

Avoid importing MIMERWStream as it is dead in Pharo

Makefile

@@ -8,12 +8,14 @@ CONVERT_RULES = -r'Osmo.LogManager->LogManager' \
                 -r'Osmo.TimerScheduler->TimerScheduler' \
 		-r'Osmo.OsmoUDPSocket->OsmoUDPSocket' \
                 -r'Sockets.StreamSocket->SocketStream' \
+		-r'Osmo.SIPParser->SIPParser' \
 		-r'DateTime->DateAndTime' \
 		-r'Character nl->Character lf' \
 		-r'(Duration milliseconds: ``@args1) -> (Duration milliSeconds: ``@args1)' \
 		-r'PP.PPCompositeParser->PPCompositeParser' \
 		-r'PP.PPCompositeParserTest->PPCompositeParserTest' \
 		-r'PP.PPPredicateObjectParser->PPPredicateObjectParser' \
+		-r'PP.PPCharSetPredicate->PPCharSetPredicate' \
 		-r'Osmo.MessageBuffer->MessageBuffer' \
 		-r'SystemExceptions.NotFound->NotFound' \
 		-r'(``@object substrings: ``@args1)->(``@object subStrings: ``@args1)' \
@@ -27,23 +29,61 @@ CONVERT_RULES = -r'Osmo.LogManager->LogManager' \
 #		-r'(``@object => ``@args1)->(``@object ==> ``@args1)'
 
 GRAMMAR = \
-	grammar/SIPGrammar.st grammar/SIPGrammarTest.st
+	grammar/SIPQuotedStringParser.st \
+	grammar/SIPGrammar.st grammar/SIPGrammarTest.st \
+	grammar/SIPQuotedStringParserTest.st
 
 
 CALLAGENT = \
 	callagent/Base64MimeConverter.st \
+	callagent/Extensions.st \
 	callagent/SIPLogArea.st \
 	callagent/SIPDialog.st \
-	callagent/SIPParams.st \
-	callagent/SIPParser.st \
-	callagent/SIPRandom.st \
-	callagent/SIPRequests.st \
+	callagent/misc/SIPBase64.st \
+	callagent/misc/SIPRandomHelper.st \
+	callagent/misc/SIPURandom.st \
+	callagent/parameters/Extensions.st \
+	callagent/parameters/SIPParam.st \
+	callagent/parameters/SIPGenericParam.st \
+	callagent/parameters/SIPCSeq.st \
+	callagent/parameters/SIPToFromParam.st \
+	callagent/parameters/SIPVia.st \
+	callagent/requests/SIPRequest.st \
+	callagent/requests/SIPACKRequest.st \
+	callagent/requests/SIPByeRequest.st \
+	callagent/requests/SIPCancelRequest.st \
+	callagent/requests/SIPInviteRequest.st \
+	callagent/requests/SIPOptionsRequest.st \
+	callagent/requests/SIPRegisterRequest.st \
+	callagent/parser/Extensions.st \
+	callagent/parser/SIPParser.st \
 	callagent/SIPResponse.st \
-	callagent/SIPTransactions.st \
-	callagent/SIPCallAgent.st \
-	callagent/SIPCall.st \
-	callagent/SIPParserTest.st \
-	callagent/Tests.st
+	callagent/SIPIdentity.st \
+	callagent/transactions/SIPTransaction.st \
+	callagent/transactions/SIPByeTransaction.st \
+	callagent/transactions/SIPInviteTransaction.st \
+	callagent/transactions/SIPRegisterTransaction.st \
+	callagent/useragent/Extensions.st \
+	callagent/useragent/SIPUserAgentBase.st \
+	callagent/useragent/SIPUserAgent.st \
+	callagent/session/Extensions.st \
+	callagent/session/SIPSessionBase.st \
+	callagent/session/SIPCallBase.st \
+	callagent/session/SIPCall.st \
+	callagent/session/SIPIncomingCall.st \
+	callagent/transport/SIPTransport.st \
+	callagent/transport/SIPUdpTransport.st \
+	callagent/authorization/SIPDigest.st \
+	callagent/authorization/SIPAuthorization.st \
+	callagent/authorization/SIPProxyAuthorization.st \
+	callagent/tests/SIPParserTest.st \
+	callagent/tests/Tests.st \
+	callagent/tests/SIPCallAgentTest.st \
+	callagent/tests/SIPDigestTest.st \
+	callagent/tests/SIPTransportMock.st \
+	callagent/tests/SIPRegisterTransactionTest.st \
+	callagent/tests/SIPInviteTest.st \
+	callagent/tests/SIPBase64Test.st
 
 PHARO_COMPAT = pharo-porting/compat_for_pharo.st
 PHARO_CHANGES = pharo-porting/changes_for_pharo.st
@@ -54,6 +94,8 @@ all:
 
 convert:
 	$(GST_CONVERT) $(CONVERT_RULES) -F squeak -f gst \
+		-C-MIMERWStream \
+		-C-MimeConverter \
 		-o fileout.st $(PHARO_COMPAT) \
 		$(GRAMMAR) $(CALLAGENT) \
 		$(PHARO_CHANGES)

callagent/parameters/SIPParam.st

@@ -29,5 +29,9 @@ Object subclass: SIPParam [
     nextPutAllOn: astream [
         ^ data nextPutAllOn: astream
     ]
+
+    do: ablock [
+        ^ data do: ablock
+    ]
 ]
 

pharo-porting/changes_for_pharo.st

@@ -2,33 +2,104 @@
 SIPURandom class extend [
     nextByte [
         <category: 'random'>
-        | file |
-	"Pharo has a weird kind of stream support"
-
-        file := (FileStream readOnlyFileNamed: '/dev/urandom')
-		    binary; yourself.
-        [
-            ^ file next value.
-        ] ensure: [
-            file close.
-        ]
+        ^(RAND rand: 1) first.
     ]
 
     nextInt [
         <category: 'random'>
-        | file |
-        file := (FileStream readOnlyFileNamed: '/dev/urandom')
-		    binary; yourself.
-        [
-            | data |
-            data := ByteArray new: 4.
-            1 to: data size do: [:each |
-                data at: each put: file next value.
-            ].
-
-            ^ data uintAt: 1
-        ] ensure: [
-            file close.
-        ]
+        ^(RAND rand: 4) asInteger
+    ]
+]
+
+SIPUserAgentBase class extend [
+    generateCSeq [
+        <category: 'helper'>
+        "For pharo just use the random we have"
+        ^(RAND rand: 4) asInteger abs
+    ]
+]
+
+SIPQuotedStringParser extend [
+    skipWhitespace: aStream [
+        [aStream atEnd] whileFalse:  [
+            | c |
+            c := aStream uncheckedPeek.
+            c = Character tab ifTrue: [aStream next].
+            c = Character space ifTrue: [aStream next].
+            ^self
+        ]
+    ]
+
+
+    parseOn: aContext [
+        | memento startPosition result |
+        startPosition := aContext position.
+        memento := aContext remember.
+
+        "Skip whitespace"
+        self skipWhitespace: aContext.
+
+        "Check for the opening space"
+        aContext atEnd ifTrue: [
+            result := PPFailure message: 'No space for opening quote' context: aContext.
+            aContext restore: memento.
+            ^result].
+
+        aContext uncheckedPeek = $" ifFalse: [
+            result := PPFailure message: 'No opening quote' context: aContext.
+            aContext restore: memento.
+            ^result].
+
+        aContext skip: 1.
+        result := self parseToClosingQuote: aContext.
+        result isPetitFailure ifTrue: [
+            aContext restore: memento].
+        ^result
+    ]
+
+    parseToClosingQuote: aStream [
+        | text inQuote finish parsed |
+        text := WriteStream on: String new.
+        inQuote := false.
+        parsed := false.
+        finish := aStream atEnd.
+        [finish] whileFalse: ["Did we have an escape?"
+
+            inQuote
+                ifTrue: [
+                    "TODO: Check if that is a valid sequence"
+
+                    text nextPut: aStream next.
+                    inQuote := false.
+                    finish := aStream atEnd]
+                ifFalse: [
+                    | c |
+                    c := aStream uncheckedPeek.
+                    c = $"
+                        ifTrue: [
+                            aStream skip: 1.
+                            parsed := true.
+                            ^text contents]
+                        ifFalse: [
+                            c = $\ ifTrue: [inQuote := true].
+                    text nextPut: c.
+                    aStream skip: 1.
+                    finish := aStream atEnd]]].
+        ^PPFailure message: 'Expected closing quote' context: aStream
+    ]
+]
+
+Base64LikeConverter class extend [
+
+    mimeEncode: aStream [
+	"Return a ReadWriteStream of characters.  The data of aStream is encoded as 65 innocuous characters.  (See class comment). 3 bytes in aStream goes to 4 bytes in output."
+
+	| me |
+	me := self new dataStream: aStream.
+	me 
+	    mimeStream: (ReadWriteStream on: (String new: (aStream size + 20) * 4 // 3)).
+	me mimeEncode.
+	me mimeStream position: 0.
+	^me mimeStream
     ]
 ]