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Re: [naviserver-devel] Running TCLWS on NaviServer
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From: Claudio P. <cla...@gm...> - 2017-01-02 17:45:13
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Thank You very much Wolfgang,
the redirect was killing me; now it works perfectly fine.
Claudio
2017-01-02 16:54 GMT+01:00 Wolfgang Winkler <
wol...@di...>:
> We have a different setup. A simple example, as we use tclws, would be:
>
>
> proc ::WS::AOLserver::call_op {when why} {
> # {{{
>
> ::WS::AOLserver::Init
> ::WS::AOLserver::Return
>
>
> # return and stop all filters
> return -return_code return filter_break
> # }}}
> }
>
>
> proc ::WS::AOLserver::InitEchoSoapURLs {service host port service_desc} {
>
> if { ![nsv_exists init soap::${service}::init_done] } {
>
> nsv_set init soap::${service}::init_done 1
>
> # register the service in tclws
> ::WS::Server::Service -mode aolserver -prefix "/SOAP/${service}"
> -service $service -description $service_desc -host $host -ports $port
> # register a filter for the ops (doc, op, wsdl)
> ad_register_filter -priority 400 preauth * /SOAP/${service}/*
> ::WS::AOLserver::call_op
>
> # Define any special types
> ::WS::Utils::ServiceTypeDef Server $service echoReply {
> echoBack {type string}
> echoTS {type dateTime}
> }
>
> # Define the operations available
> ::WS::Server::ServiceProc $service \
> {
> SimpleEcho {type string comment {Requested Echo}}
> } {
> TestString {type string comment {The text to echo back}}
> } { Echo a string back } {
> return [list SimpleEchoResult $TestString]
> }
>
> }
>
> }
>
>
> set service "echo"
> set host "localhost:8080"
> set port "8080"
> set desc "Echo Service"
>
> ::WS::AOLserver::InitEchoSoapURLs $service $host $port $desc
>
> I've simpliefied the code a bit, so it should run on any naviserver
> installation, except for the ad_register_filter call. I haven't testet this
> simplified code, so expect some typos. But I think you'll get the general
> idea.
>
> This is all sourced at startup. The filter catches all requests to the
> service, an internal redirect is not necessary.
>
> Wolfgang
>
> Am 2017-01-02 um 16:06 schrieb Claudio Pasolini:
>
> Thanks Gustaf and Wolfgang.
>
> I modified the proc ::WS::AOLserver::Return as per Gustaf suggestion, but
> I have not yet succeeded executing the sample EchoWebService.
>
> To reduce the complexity I modified the call to the service so as to make
> a single call to the SimpleEcho method. Executing the script
> CallEchoWebService I receive a screen with the correct results, but looking
> at the error.log it seems that the calls to ::WS::AOLserver::Return be
> duplicated and finally I get an error complaining that the connection is
> already closed.
>
> Here is an excerpt of the error log.
>
> [02/Jan/2017:15:37:13][3409.7fa0d5398700][-conn:oacs-5-9:4-] Notice:
> WS::AOLserver::Redirect: from '{} tclws ws echoexample wsdl' to
> '/tclws/ws/echoexample/index.tcl'
> [02/Jan/2017:15:37:13][3409.7fa0d5398700][-conn:oacs-5-9:4-] Notice:
> ...entering ::WS::AOLserver::Return requestType=wsdl
> [02/Jan/2017:15:37:13][3409.7fa0d5398700][-conn:oacs-5-9:4-] Notice:
> ... calling ::WS::Server::generateWsdl
> [02/Jan/2017:15:37:13][3409.7fa0d5398700][-conn:oacs-5-9:4-] Notice:
> ...entering ::WS::AOLserver::Return requestType=wsdl
> [02/Jan/2017:15:37:13][3409.7fa0d5398700][-conn:oacs-5-9:4-] Notice:
> ... calling ::WS::Server::generateWsdl
> [02/Jan/2017:15:37:13][3409.7fa0d5499700][-conn:oacs-5-9:3-] Notice:
> Calling SimpleEcho via DoCalls!
> [02/Jan/2017:15:37:13][3409.7fa0d5398700][-conn:oacs-5-9:4-] Notice:
> WS::AOLserver::Redirect: from '{} tclws ws echoexample op' to
> '/tclws/ws/echoexample/index.tcl'
> [02/Jan/2017:15:37:13][3409.7fa0d5398700][-conn:oacs-5-9:4-] Notice:
> ...entering ::WS::AOLserver::Return requestType=op
> [02/Jan/2017:15:37:13][3409.7fa0d5398700][-conn:oacs-5-9:4-] Notice:
> ...::WS::AOLserver::Return calling ::WS::Server::callOperation
> service=echoexample sock=nosock
> [02/Jan/2017:15:37:13][3409.7fa0d5398700][-conn:oacs-5-9:4-] Notice:
> ...entering ::WS::AOLserver::Return requestType=op
> [02/Jan/2017:15:37:13][3409.7fa0d5499700][-conn:oacs-5-9:3-] Notice:
> Received: {SimpleEchoResult {This is a test}}
> [02/Jan/2017:15:37:13][3409.7fa0d5398700][-conn:oacs-5-9:4-] Error:
> connection already closed, can't get content
> while executing
> "ns_conn content"
> (procedure "ns_getcontent" line 75)
> invoked from within
> "ns_getcontent -as_file false -binary false"
> ("uplevel" body line 37)
> invoked from within
> "uplevel 1 {
>
> set sock nosock
>
> ns_log notice "\n...entering ::WS::AOLserver::Return
> requestType=$requestType"
> switch -exact -- $requestType {
>
> ..."
> (procedure "::WS::AOLserver::Return" line 3)
> invoked from within
> "::WS::AOLserver::Return"
>
>
> I don't understand why this is happening.
>
> Wolfgang: did You modify the proc ::ws_aolserver_redirect replacing
> ns_rewriteurl with ns_internalredirect?
>
> Best regards.
>
> Claudio
>
> 2017-01-02 13:34 GMT+01:00 Wolfgang Winkler <wolfgang.winkler@digital-
> concepts.com>:
>
>> Hi Claudio!
>>
>> I can confirm what Gustaf wrote below. We are using our own
>> initialization routine, which is similar to the one provided by the tclws
>> package. We have our own logging facilities, wo we don't need the log
>> package:
>>
>> namespace eval ::WS::AOLserver {
>> if {![info exists wsVersion]} {
>> variable wsVersion [package require WS::Server]
>> }
>> #if {![info exists logVersion]} {
>> # variable logVersion [package require log]
>> #}
>> }
>>
>> For returning values, we use exactly the line from Gustaf:
>>
>> set data(query) [ns_getcontent -as_file false -binary false]
>>
>> This is handy for REST interfaces as well.
>>
>> regards,
>>
>> Wolfgang
>>
>>
>>
>> Am 2016-12-31 um 17:51 schrieb Gustaf Neumann:
>>
>> Am 30.12.16 um 19:00 schrieb Claudio Pasolini:
>>
>> Hi all,
>>
>> I'm in the process of upgrading several OpenACS instances and migrating
>> them from AolServer 4.5 to the latest NaviServer.
>>
>> One of the instances makes use of TCLWS for bulding a couple of SOAP web
>> services and I'm having trouble to make it work.
>>
>> Here are the first problems encountered:
>>
>> - ns_ictl doesn't support the 'package' argument. I replaced the
>> command
>> ns_ictl package require log
>> with
>> ns_ictl trace allocate {package require log}
>>
>> probably, using "package require log" will be sufficient as well.
>>
>>
>> - but I'm not sure about eventual side effects.
>> - In a proc called by ns_register_filter preauth I replaced ns_rewrite
>> with ns_internalredirect but I observed a strange behaviour.
>> ns_register_filter invokes the proc passing one argument, but
>> actually the proc receives two, prehauth being added.
>>
>> you are probably referring to the old module "nsredirect". Calling
>> ns_internalredirect should be fine.
>>
>> Yes, there is a difference between the calling conventions in AOLserver
>> and NaviServer:
>> NaviServer tells the developer the stage, at which the proc was invoked
>> (the same proc
>> might be registered for multiple states (such as "preauth", "postauth" or
>> "trace"). This
>> difference is as well handled in e.g. OpenACS since 10+ years.
>>
>>
>> - I stumbled in the same problem posted by Wolfgang Winkler
>> Error: can't set "xsltSchemaDom": var is read-only
>> and solved it thanks to Gustaf tip.
>>
>> should not happen in recent versions of NaviServer
>>
>>
>> - Calling the sample EchoWebService I get a strange error
>> Error: invalid length: 779
>> executing the command
>> ns_conn copy 0 $length $fp
>>
>> this comes probably from this section:
>> https://github.com/bovine/tclws/blob/master/AOLserver.tcl#L82
>>
>> I would think that you can replace the section "Get POSTed data"
>> by something like:
>>
>> set data(query) [ns_getcontent -as_file false -binary false]
>>
>> This has at least the following advantages
>> - less hacky
>> - works for http and https
>> - works also when spooling post data
>>
>> all the best
>> -gn
>>
>>
>> I wonder if someone (Wolfgang?) having already a production site running
>> TCLWS with NaviServer could suggest me how to proceed.
>>
>> Happy New Year!
>>
>> Claudio
>>
>>
>> ------------------------------------------------------------------------------
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>> _______________________________________________
>> naviserver-devel mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/naviserver-devel
>>
>> --
>> Univ.Prof. Dr. Gustaf Neumann
>> WU Vienna
>> Institute of Information Systems and New Media
>> Welthandelsplatz 1, A-1020 Vienna, Austria
>>
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>>
>> --
>>
>> *Wolfgang Winkler* Geschäftsführung wol...@di...
>> mobil +43.699.19971172 <+43%20699%2019971172> dc:*büro* digital concepts
>> Novak Winkler OG Software & Design Landstraße 68, 5. Stock, 4020 Linz
>> www.digital-concepts.com tel +43.732.997117.72 tel +43.699.1997117.2
>> Firmenbuchnummer: 192003h Firmenbuchgericht: Landesgericht Linz
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>
> ------------------------------------------------------------------------------
> Check out the vibrant tech community on one of the world's most
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> _______________________________________________
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>
> --
>
> *Wolfgang Winkler* Geschäftsführung wol...@di...
> mobil +43.699.19971172 <+43%20699%2019971172> dc:*büro* digital concepts
> Novak Winkler OG Software & Design Landstraße 68, 5. Stock, 4020 Linz
> www.digital-concepts.com tel +43.732.997117.72 tel +43.699.1997117.2
> Firmenbuchnummer: 192003h Firmenbuchgericht: Landesgericht Linz
>
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