21 Jun
1998
21 Jun
'98
6:21 p.m.
Below is a file in, for those who live behind firewalls with HTTP proxies that require authentication. An example is the Netscape Fasttrack proxy.
This is a pretty egregious hack, but it is good enough to allow you to use the 'update from network' facility to get your image current.
To use:
-In a workspace, evaluate (changing proxy name, port, user and password as required. You can find these values in the Preferences/Options for your browser):
HTTPSocket useProxyServerNamed: 'proxy.yourcompany.com' port: 8080. HTTPSocket proxyUser: 'yourid' password: 'yourpassword'.
-Update your image, or do other network functions.
-If you have any interest in security at all, evaluate:
HTTPSocket clearProxyUserPassword.
when you are done.
...Tom M
--
+---Tom Morgan ------------------------------ (tmorgan@acm.org) -----+
I Brooklyn Union Phone: 1 718 403 2427 I
I 1 MetroTech Center Fax: 1 718 488 1752 I
+---Brooklyn, New York 11201 USA ------------------------------------+
'From Squeak 2.0 of May 22, 1998 on 21 June 1998 at 10:44:01 am'!
"Change Set: HTTP
Date: 21 June 1998
Author: Tom Morgan
Additions and change to allow use of the HTTPSocket class
for people who live behind firewalls which demand credentials.
These changes were tested with the Netscape-FastTrack/2.01
proxy"!
SimpleClientSocket subclass: #HTTPSocket
instanceVariableNames: 'headerTokens '
classVariableNames: 'HTTPBlabEmail HTTPPort HTTPProxy HTTPProxyCredentials
ParamDelimiters '
poolDictionaries: ''
category: 'System-Network'!
!HTTPSocket class methodsFor: 'class initialization' stamp: 'TEM 6/21/1998 09:55'!
initialize
"HTTPSocket initialize"
ParamDelimiters _ ' ', CrLf.
HTTPPort _ 80.
HTTPProxy _ nil.
HTTPBlabEmail _ ''. " 'From: tedk@disney.com', CrLf "
HTTPProxyCredentials _ ''.
! !
!HTTPSocket class methodsFor: 'examples' stamp: 'TEM 6/21/1998 10:17'!
httpGet: url accept: mimeType
"Return the exact contents of a web object. Asks for the given MIME type. If
mimeType is nil, use 'text/html'. The parsed header is saved. Use a proxy
server if one has been registered. tk 7/23/97 17:12"
"Note: To fetch raw data, you can use the MIMI type 'application/octet-stream'."
| serverName serverAddr s header length bare page list firstData aStream
newURL |
Socket initializeNetwork.
bare _ (url asLowercase beginsWith: 'http://')
ifTrue: [url copyFrom: 8 to: url size]
ifFalse: [url].
"For now, may not put :80 or other port number in a url. Use setHTTPPort:"
serverName _ bare copyUpTo: $/.
page _ bare copyFrom: serverName size + 1 to: bare size.
page size = 0 ifTrue: [page _ '/'].
HTTPProxy ifNotNil: [
page _ 'http://', serverName, page. "put back together"
serverName _ HTTPProxy].
self retry: [serverAddr _ NetNameResolver addressForName: serverName timeout: 20.
serverAddr ~~ nil]
asking: 'Trouble resolving server name. Keep trying?'
ifGiveUp: [Socket deadServer: serverName.
^ 'Could not resolve the server named: ', serverName].
s _ HTTPSocket new.
s connectTo: serverAddr port: HTTPPort. "80 is normal"
(s waitForConnectionUntil: (self deadlineSecs: 30)) ifFalse: [
Socket deadServer: serverName. s destroy.
^ 'Server ',serverName,' is not responding'].
Transcript cr; show: serverName; cr.
s sendCommand: 'GET ', page, ' HTTP/1.0', CrLf,
(mimeType ifNotNil: ['ACCEPT: ', mimeType, CrLf] ifNil: ['']),
'ACCEPT: text/html', CrLf, "Always accept plain text"
HTTPProxyCredentials, CrLf,
HTTPBlabEmail, "may be empty"
'User-Agent: Squeak 1.31',
CrLf. "blank line"
list _ s getResponseUpTo: CrLf, CrLf. "list = header, CrLf, CrLf, beginningOfData"
header _ list at: 1.
Transcript show: page; cr; show: header; cr.
firstData _ list at: 3.
"Find the length"
length _ s contentsLength: header. "saves the headerTokens"
length ifNil: [
(newURL _ s redirect) ifNotNil: [
s destroy.
^ self httpGet: newURL accept: mimeType].
Transcript cr; show: 'Some kind of Error'.
s destroy. ^ header].
aStream _ s getRestOfBuffer: firstData totalLength: length.
s destroy. "Always OK to destroy!!"
^ aStream "String with just the data"! !
!HTTPSocket class methodsFor: 'examples' stamp: 'TEM 6/21/1998 10:31'!
proxyUserTestingComment
"Set and clear proxy authentication credentials"
" HTTPSocket clearProxyUserPassword.
HTTPSocket useProxyServerNamed: 'proxy.yourdomain.com' port: 8080.
HTTPSocket proxyUser: 'tmorgan' password: 'xxxxxxxx'"
" HTTPSocket stopUsingProxyServer "
! !
!HTTPSocket class methodsFor: 'proxy settings' stamp: 'TEM 6/21/1998 09:57'!
clearProxyUserPassword
"Atonement for an ugly hack that stores your proxy password
in your image. This clears the userid and password"
HTTPProxyCredentials _ ''.
! !
!HTTPSocket class methodsFor: 'proxy settings' stamp: 'TEM 6/21/1998 10:23'!
proxyUser: userName password: password
"Store HTTP 1.0 basic authentication credentials
Note: this is an ugly hack that stores your password
in your image. It's just enought to get you going
if you use a firewall that requires authentication"
| ss bb |
ss _ ReadWriteStream on: (String new: 16).
ss nextPutAll: userName,':',password.
bb _ Base64MimeConverter mimeEncode: ss.
HTTPProxyCredentials _ 'Proxy-Authorization: Basic ', (bb contents).
! !
!HTTPSocket class methodsFor: 'proxy settings' stamp: 'TEM 6/21/1998 10:25'!
stopUsingProxyServer
"Stop directing HTTP request through a proxy server."
self clearProxyUserPassword.
HTTPProxy _ nil.
HTTPPort _ 80.
! !
HTTPSocket initialize!
'From Squeak 2.0 of May 22, 1998 on 21 June 1998 at 10:44:01 am'!
"Change Set: HTTP
Date: 21 June 1998
Author: Tom Morgan
Additions and change to allow use of the HTTPSocket class
for people who live behind firewalls which demand credentials.
These changes were tested with the Netscape-FastTrack/2.01
proxy"!
SimpleClientSocket subclass: #HTTPSocket
instanceVariableNames: 'headerTokens '
classVariableNames: 'HTTPBlabEmail HTTPPort HTTPProxy HTTPProxyCredentials ParamDelimiters '
poolDictionaries: ''
category: 'System-Network'!
!HTTPSocket class methodsFor: 'class initialization' stamp: 'TEM 6/21/1998 09:55'!
initialize
"HTTPSocket initialize"
ParamDelimiters _ ' ', CrLf.
HTTPPort _ 80.
HTTPProxy _ nil.
HTTPBlabEmail _ ''. " 'From: tedk@disney.com', CrLf "
HTTPProxyCredentials _ ''.
! !
!HTTPSocket class methodsFor: 'examples' stamp: 'TEM 6/21/1998 10:17'!
httpGet: url accept: mimeType
"Return the exact contents of a web object. Asks for the given MIME type. If mimeType is nil, use 'text/html'. The parsed header is saved. Use a proxy server if one has been registered. tk 7/23/97 17:12"
"Note: To fetch raw data, you can use the MIMI type 'application/octet-stream'."
| serverName serverAddr s header length bare page list firstData aStream newURL |
Socket initializeNetwork.
bare _ (url asLowercase beginsWith: 'http://')
ifTrue: [url copyFrom: 8 to: url size]
ifFalse: [url].
"For now, may not put :80 or other port number in a url. Use setHTTPPort:"
serverName _ bare copyUpTo: $/.
page _ bare copyFrom: serverName size + 1 to: bare size.
page size = 0 ifTrue: [page _ '/'].
HTTPProxy ifNotNil: [
page _ 'http://', serverName, page. "put back together"
serverName _ HTTPProxy].
self retry: [serverAddr _ NetNameResolver addressForName: serverName timeout: 20.
serverAddr ~~ nil]
asking: 'Trouble resolving server name. Keep trying?'
ifGiveUp: [Socket deadServer: serverName.
^ 'Could not resolve the server named: ', serverName].
s _ HTTPSocket new.
s connectTo: serverAddr port: HTTPPort. "80 is normal"
(s waitForConnectionUntil: (self deadlineSecs: 30)) ifFalse: [
Socket deadServer: serverName. s destroy.
^ 'Server ',serverName,' is not responding'].
Transcript cr; show: serverName; cr.
s sendCommand: 'GET ', page, ' HTTP/1.0', CrLf,
(mimeType ifNotNil: ['ACCEPT: ', mimeType, CrLf] ifNil: ['']),
'ACCEPT: text/html', CrLf, "Always accept plain text"
HTTPProxyCredentials, CrLf,
HTTPBlabEmail, "may be empty"
'User-Agent: Squeak 1.31',
CrLf. "blank line"
list _ s getResponseUpTo: CrLf, CrLf. "list = header, CrLf, CrLf, beginningOfData"
header _ list at: 1.
Transcript show: page; cr; show: header; cr.
firstData _ list at: 3.
"Find the length"
length _ s contentsLength: header. "saves the headerTokens"
length ifNil: [
(newURL _ s redirect) ifNotNil: [
s destroy.
^ self httpGet: newURL accept: mimeType].
Transcript cr; show: 'Some kind of Error'.
s destroy. ^ header].
aStream _ s getRestOfBuffer: firstData totalLength: length.
s destroy. "Always OK to destroy!!"
^ aStream "String with just the data"! !
!HTTPSocket class methodsFor: 'examples' stamp: 'TEM 6/21/1998 10:31'!
proxyUserTestingComment
"Set and clear proxy authentication credentials"
" HTTPSocket clearProxyUserPassword.
HTTPSocket useProxyServerNamed: 'proxy.yourdomain.com' port: 8080.
HTTPSocket proxyUser: 'tmorgan' password: 'xxxxxxxx'"
" HTTPSocket stopUsingProxyServer "
! !
!HTTPSocket class methodsFor: 'proxy settings' stamp: 'TEM 6/21/1998 09:57'!
clearProxyUserPassword
"Atonement for an ugly hack that stores your proxy password
in your image. This clears the userid and password"
HTTPProxyCredentials _ ''.
! !
!HTTPSocket class methodsFor: 'proxy settings' stamp: 'TEM 6/21/1998 10:23'!
proxyUser: userName password: password
"Store HTTP 1.0 basic authentication credentials
Note: this is an ugly hack that stores your password
in your image. It's just enought to get you going
if you use a firewall that requires authentication"
| ss bb |
ss _ ReadWriteStream on: (String new: 16).
ss nextPutAll: userName,':',password.
bb _ Base64MimeConverter mimeEncode: ss.
HTTPProxyCredentials _ 'Proxy-Authorization: Basic ', (bb contents).
! !
!HTTPSocket class methodsFor: 'proxy settings' stamp: 'TEM 6/21/1998 10:25'!
stopUsingProxyServer
"Stop directing HTTP request through a proxy server."
self clearProxyUserPassword.
HTTPProxy _ nil.
HTTPPort _ 80.
! !
HTTPSocket initialize!
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Tom Morgan