xcat-core/perl-xCAT/xCAT/hpoa.pm
2012-09-22 16:20:24 +00:00

375 lines
11 KiB
Perl

#
# © Copyright 2009 Hewlett-Packard Development Company, L.P.
# EPL license http://www.eclipse.org/legal/epl-v10.html
#
## API for talking to HP Onboard Administrator
## NOTE:
## All parameters are passed by name!
## For example:
## hpoa->new(oaAddress => '16.129.49.209');
package xCAT::hpoa;
use strict;
#use SOAP::Lite; # hpblade.pm requires SOAP::Lite before requiring hpoa.pm, so we can check for SOAP::Lite dynamically
use vars qw(@ISA);
@ISA = qw(SOAP::Lite);
# Constructor
# Input: oaAddress, the IP address of the OA
# Output: SOAP::SOM object (SOAP response)
sub new {
my $class = shift;
return $class if ref $class;
my $self = $class->SUPER::new();
my %args = @_;
die "oaAddress is a required parameter"
unless defined $args{oaAddress};
# Some info we'll need
$self->{HPOA_HOST} = $args{oaAddress}; # OA IP address
$self->{HPOA_KEY} = undef; # oaSessionKey returned by userLogIn
$self->{HPOA_SECURITY_XML} = undef; # key placed in proper XML
$self->{HPOA_SECURITY_HEADER} = undef; # XML translated to SOAP::Header obj
bless($self, $class);
# We contact the OA via this URL:
my $proxy = "https://". $self->{HPOA_HOST} . ":443/hpoa";
# One of the cool things about SOAP::Lite is that almost every
# method returns $self. This allows you to string together
# as many calls as you need, like this:
$self
# keep the XML formatted for human readability, in case
# we ever have to look at it (unlikely)
-> readable(1)
# Need to tell SOAP about some namespaces. I don't know if they
# are all necessary or not, but I got them from the hpoa.wsdl
-> ns("http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd", "wsu")
-> ns('http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd', "wsse")
-> ns('http://www.w3.org/2001/XMLSchema-instance', 'xsi')
-> ns('http://www.w3.org/2003/05/soap-encoding', 'SOAP-ENC')
-> ns('http://www.w3.org/2003/05/soap-envelope', 'SOAP-ENV')
-> ns('http://www.w3.org/2001/XMLSchema', 'xsd')
-> default_ns("hpoa.xsd", "hpoa")
# Inform SOAP of the OA URL
-> proxy($proxy);
return $self;
}
# Method: call
# Input: method and a hash of method's input params (see below)
# Output: SOAP::SOM object (SOAP response)
#
# All methods in the OA API end up getting called by this routine,
# even though the user invokes them directly using the method name.
# For example, code that looks like this:
# $hpoa->userLogIn(username=>$name, password=>$pass)
# results in this call:
# $hpoa->call('userLogIn', username=>$name, password=>$pass)
sub call {
my ($self, $method, %args) = @_;
#
# Each item of %args is of the form:
# ($name => $value).
#
# $value is usually a scalar and SOAP::Lite infers a type.
#
# If the value needs to be explicitly typed, the $value should be a
# reference to an array of the form:
# [ $scalar, $type ]
# This should work for any parameter that you want to explicitly
# type, but for some reason the OA was not having any of it the
# last time I tried.
#
# If the method calls for an array of values, the $value should be
# a reference to an array of the form:
# [ $itemName, $itemArrayRef, $itemType ]
#
# If the method calls for more complicated structure, the $value
# should be a reference to a hash of the form:
# { name1 => value1, name2 => value2 ... }
# The values can themselves be scalars, array refs or hash refs,
# which will themselves be processed recursively.
#
# Put the params in a form SOAP likes.
my @soapargs = ();
while (my ($k, $v) = each %args) {
push @soapargs, $self->process_args($k, $v);
}
# This is required if there are no params, otherwise SOAP::Lite
# makes an XML construct that the OA doesn't like.
@soapargs = SOAP::Data->type('xml'=> undef)
unless @soapargs;
# Add the security header if it's not the login method.
# I'm hoping that the header will be ignored by the few methods
# that don't require security.
push (@soapargs, $self->{HPOA_SECURITY_HEADER})
unless ($method eq 'userLogIn') || !defined $self->{HPOA_SECURITY_HEADER};
# Make sure we're using the correct version of SOAP, but
# don't mess up packages that use a different version.
my $version = xCAT::hpoa->soapversion();
xCAT::hpoa->soapversion('1.2');
# Call the method and put the response in $r
my $r = $self->SUPER::call($method, @soapargs);
# Reset the SOAP version
xCAT::hpoa->soapversion($version);
# If this was the login method and it was successful, then extract
# the session key and remember it for subsequent calls.
if ($method eq 'userLogIn' && !$r->fault) {
my $key = $r->result()->{oaSessionKey};
# Got this XML code from the HP Insight Onboard Administrator SOAP
# Interface Guide 0.9.7
my $xml = '
<wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" SOAP-ENV:mustUnderstand="true">
<hpoa:HpOaSessionKeyToken xmlns:hpoa="hpoa.xsd">
<hpoa:oaSessionKey>'
. $key .
'</hpoa:oaSessionKey>
</hpoa:HpOaSessionKeyToken>
</wsse:Security>';
$self->{HPOA_KEY} = $key;
$self->{HPOA_SECURITY_XML} = $xml;
$self->{HPOA_SECURITY_HEADER} = SOAP::Header->type('xml' => $xml);
}
# Return the response
return $r;
}
## Create the correct SOAP::Data structure for the given args
## $n is the argument name
## $v is the value and can be of the following 4 forms:
## $scalar
## - A scalar value. No further processing takes place.
## Produces: <name>value</name>
## [ $scalar, $type ]
## - An array ref containing a scalar value and type. No further
## will take place.
## Produces: <name type=aType>value</name>
## [ $itemName, $aref, $type ]
## - An array ref containing the name for the elements, the elements
## themselves in an array ref, and the type for the elements. The
## elements themselves can be processed.
## Produces: <name>
## <item type=aType>value1</item>
## <item type=aType>value2</item>
## </name>
## { $n1 => $v1, $n2 => $v2 ... }
## - A hash ref containing name value pairs that can themselves
## be processed.
## Produces: <name>
## <n1>v1</n1>
## <n2>v2</n2>
## </name>
sub process_args {
my ($self, $n, $v, $t) = @_;
print "process args: $n => $v\n" if 0;
if (!ref $v) { # untyped scalar
print "\nUNTYPED SCALAR: $n => $v\n" if 0;
return SOAP::Data->new(name => $n, value => $v, type => '');
}
if (ref $v eq 'HASH') { # structure
my ($nn, $vv, @ar);
while (($nn, $vv) = each %$v) {
print "\nSTRUCTURE $n: $nn => $vv\n" if 0;
unshift @ar, $self->process_args($nn, $vv);
}
return SOAP::Data->name($n => \SOAP::Data->value(@ar));
}
if (ref $v eq 'ARRAY') {
if (scalar @$v == 2) { # typed scalar
my ($value, $type) = @$v;
print "\nTYPED SCALAR: $n => $value ($type)\n" if 0;
return SOAP::Data->new(name => $n, value => $value, type => $type);
}
# Else an array of values
my ($itemName, $aref, $type) = @$v;
my (@ar, $item);
foreach $item (@$aref) {
if (ref $item eq 'HASH') {
print "\nSUB STRUCTURE $n: $itemName => $item ($type)\n" if 0;
unshift @ar, $self->process_args("$itemName", $item);
} else {
print "\nARRAY $n: $itemName => $item ($type)\n" if 0;
unshift @ar, $self->process_args($itemName, [$item, $type]);
}
}
return SOAP::Data->name($n => \SOAP::Data->value(@ar));
}
die "Unexpected input parameter value: $n => $v\n";
}
###
### Special fault info for OAs
###
# The OA uses it's own fault data structures. The simple
# fault methods provided by SOAP::Lite are usually undef.
# The OA's fault data looks like this:
# {
# 'Detail' => {
# 'faultInfo' => {
# 'operationName' => 'userLogIn',
# 'errorText' => 'The user could not be authenticated.',
# 'errorCode' => '150',
# 'errorType' => 'USER_REQUEST'
# }
# },
# 'Reason' => {
# 'Text' => 'User Request Error'
# },
# 'Code' => {
# 'Value' => 'SOAP-ENV:Sender'
# }
#}
#
# In your code, you should generally check that $response->fault
# is defined, then print $response->oaErrorMessage.
# If you know the codes, you can act on $response->oaErrorCode
#
# The OA's fault structure
sub SOAP::SOM::oaFaultInfo {
my ($self, @args) = @_;
return $self->fault->{Detail}->{faultInfo}
if (defined $self->fault &&
defined $self->fault->{Detail} &&
defined $self->fault->{Detail}->{faultInfo});
return undef;
}
# The name of the method producing the fault
sub SOAP::SOM::oaOperationName {
my ($self, @args) = @_;
my $oafi = $self->oaFaultInfo;
return $oafi->{operationName}
if defined $oafi &&
defined $oafi->{operationName};
return undef;
}
# Text of the OA fault
sub SOAP::SOM::oaErrorText {
my ($self, @args) = @_;
my $oafi = $self->oaFaultInfo;
return $oafi->{errorText}
if defined $oafi &&
defined $oafi->{errorText};
return undef;
}
# Numeric code of the OA fault
sub SOAP::SOM::oaErrorCode {
my ($self, @args) = @_;
my $oafi = $self->oaFaultInfo;
if (defined $oafi) {
return $oafi->{errorCode}
if defined $oafi->{errorCode};
return $oafi->{internalErrorCode}
if defined $oafi->{internalErrorCode};
}
return undef;
}
# Bay Number of the OA fault
sub SOAP::SOM::oaOperationBayNumber {
my ($self, @args) = @_;
my $oafi = $self->oaFaultInfo;
return $oafi->{operationBayNumber}
if defined $oafi &&
defined $oafi->{operationBayNumber};
return undef;
}
# Sometimes there's extra fault information
# (Haven't seen any yet!)
sub SOAP::SOM::oaExtraFaultData {
my ($self, @args) = @_;
my $oafi = $self->oaFaultInfo;
return $oafi->{extraData}
if defined $oafi &&
defined $oafi->{extraData};
return undef;
}
# Nicely formatted error message for human consumption.
# Tries to use the oaErrorText and oaErrorCode, if defined,
# else uses the reason text.
sub SOAP::SOM::oaErrorMessage {
my ($self, @args) = @_;
my $errorText = $self->oaErrorText;
# Reason text is either an error message from SOAP (as when
# the method or argument doesn't exist), or it's a formatted
# form of the faultInfo->errorType enumeration.
my $reasonText = $self->fault->{Reason}->{Text};
return $reasonText
unless defined $errorText;
my $operationName = $self->oaOperationName;
my $operationBay = $self->oaOperationBayNumber;
my $errorCode = $self->oaErrorCode;
my $extraData = $self->oaExtraFaultData;
my $operation = "'$operationName' call";
$operation .= " on bay $operationBay"
if $operationBay;
my $completeText =
"$reasonText $errorCode during $operation: $errorText";
$completeText .= "\n\t$extraData" if $extraData;
return $completeText;
}
1;