Unable to query RoleEnvironment with Windows Azure SDK for PHP - php

I have an issue with obtaining data from Windows Azure's runtime using the newest (at the time of writing) PHP SDK from Github. Here is a test I am running on one of our hosted services:
<?php
include 'WindowsAzure/WindowsAzure.php';
use \WindowsAzure\ServiceRuntime\RoleEnvironment;
use \WindowsAzure\ServiceRuntime\Internal\RoleEnvironmentNotAvailableException;
try {
echo RoleEnvironment::getDeploymentId();
}
catch (RoleEnvironmentNotAvailableException $Exception) {
die('Failed to find deployment id');
}
RoleEnvironmentNotAvailableException is always thrown. Looking at the source, it seems to try sending commands through a named pipe (\.\pipe\WindowsAzureRuntime). Do I need to specify something within my ServiceConfiguration.csdef/cscfg in order to have access to this named pipe?
Any advice would be most welcome!


Got confirmation from MS EMEA Developer Support that current SDK does not support this function. They suggested similar workaround to jonnu above - use the previous SDK's functionality for role environment / configuration settings.


The ServiceRuntime APIs run only on Cloud so if this code snippet runs on local machine it'll throw an exception as you've pointed out. Further, if you want to debug your ServiceRuntime code you've to deploy your service to WA then use remote desktop connection to access the cloud machine and debug your code.

Related

Problem with configuration of LiveQuery in Parseplatform

Hello i have installed Parse server and parse sdk for php on my Linux Centos Server.
Parse Dashboard: 1.3.3,
Server version: 4.3.0
I'm managing those db's using php code. This parser was installed by someone else. The thing is I'm not sure how to install LiveQuery for my server. I don't know if my version of server is good for this kind of operations. I found some solutions how to enable this feature, but there was something like "index.js" - in my file system it's app.js. Screen of file system
In app.js i added lines:
liveQuery: {
classNames: ["Test"] //List of classes to support for query subscritions
}
I've created class in my db named "Test", then i found solution i need to add
this line
liveQueryUrl: keyLiveQueryUrl, // Required if using LiveQuery
I don't really know how to get this key.
How can i check if LiveQuery works? It will be used by flutter code, but i'd like to check it first in PHP.

My problem has been solved in my other extended topic here.

PHP code working locally but not on Azure

I've implemented a mail delivery service using SparkPost for a website. The code looks like this:
require '/vendor/autoload.php';
use SparkPost\SparkPost; use GuzzleHttp\Client;
use Ivory\HttpAdapter\Guzzle6HttpAdapter;
$httpAdapter = new Guzzle6HttpAdapter(new Client());
$sparky = new SparkPost($httpAdapter, ['key'=>'...']);
[...]
[...]
$results = $sparky->transmission->send($mailarray);
It works just fine locally on WampServer, however when I deploy it to Azure it does not. I don't have access to Azure logs, but I managed to narrow down the problem to one line:
$sparky = new SparkPost($httpAdapter, ['key'=>'...']);
I simply get a 500 error without any other explanation. The weird thing is when I wrap it around a try/catch, I still don't get anything other than a blank screen and a 500 on the console. I suspect it has to do something with /autoload.php not being able to load something.
Any thoughts?

According the requirement of SparkPost lib on Github repo at https://github.com/SparkPost/php-sparkpost/blob/master/composer.json#L18, it need PHP version higher than 5.5. So you can modify the PHP version of your Azure Web Apps, please refer to https://azure.microsoft.com/en-us/documentation/articles/web-sites-php-configure/#how-to-change-the-built-in-php-version for detail steps.

Call method from out-of-process COM component using PHP on Azure

I've written a simple PHP script which instantiates a COM object for an out-of-process (i.e. exe file) COM component and uses it to call a COM method that the component exposes. This COM method very simply quadruples the number passed as the first argument, returning the result in the second argument (passed by reference). The script shown below works successfully on my local development machine on WampServer 2.0 (Apache 2.2.11 / PHP 5.3.1). The COM component is a Win32 executable built using Delphi.
<?php
// ensure no time limit is imposed
set_time_limit(0);
// show all errors, warnings and notices whilst developing
error_reporting(E_ALL);
$numIn = 3;
$numOut = new VARIANT(1, VT_I4);
echo '----- BEFORE ---------' . '<br>';
echo 'NumIn: ' . $numIn . '<br>';
echo 'NumOut: ' . $numOut . '<br>';
echo '----------------------' . '<br>';
$oleapp = new COM("OleAutomationFeasibilityModel.Automation") or die ("Could not initialise feasibility model object.");
echo '<br />COM object created version = ' . $oleapp->Version . '<br /><br />';
$oleapp->CalculateWithVariants($numIn, $numOut);
unset($oleapp);
echo '----- AFTER ---------' . '<br>';
echo 'NumIn: ' . $numIn . '<br>';
echo 'NumOut: ' . $numOut . '<br>';
echo '----------------------' . '<br>';
?>
Note: as I understand it, one can only pass a parameter by reference to a COM method using a VARIANT type, as common data types like integers and strings won't work (see http://www.php.net/manual/en/ref.com.php#45038).
I then created and deployed an Azure Web Role (Cloud Service) with a startup script that registers the COM component successfully i.e. the appropriate registry keys appeared in the registry. To further confirm that the COM component could be interacted with, I used RDP to connect to the cloud service instance and installed Microsoft Access Runtime 2010 as I have an Access application that provides a GUI to test the methods of the COM component. I was able to run this application and successfully interacted with the COM component, using it to pass an integer to the CalculateWithVariants method and the expected quadrupled result was returned. So, I've established that the COM component is installed and can be interacted with on the Azure cloud service instance.
Next I included the above PHP script in the Web Role and deployed it on Azure. Unfortunately, calling the script from a browser results in an HTTP Error 500 (Internal Server Error) and I'm struggling to find out why. If I comment out all lines referencing $oleapp, I still get the same error. If I additionally comment out the line that instantiates a variant object, no error occurs. If I reinstate the line which instantiates the COM object and the line below it, I receive no error message but the only text echoed is from the lines preceding the COM object creation line i.e. the call to the Version method fails. So it appears to be struggling with the variant object creation and the COM object creation.
I'm a bit stuck in terms of how to resolve this issue. I would therefore be very grateful if anyone has any pointers as to a way forward.
UPDATE 1
I decided to try a different course of action on the Azure platform by...
creating an Azure Virtual Machine with a Windows Server 2008 R2 OS
installing WampServer 2.2E (Apache 2.2.22 / PHP 5.3.13 / MySQL
5.5.24) in the VM as a quick and easy way to test whether this approach would work
copying the above PHP script into the WampServer "www directory"
launching WampServer
selecting the "Put Online" option from the WampServer Menu (accessed by left-clicking the WampServer icon in the Windows Taskbar Notification area)
creating an "Inbound Rule" for the VM firewall to allow connections to port 80
...and thankfully the script ran successfully!
Ideally, I would still like to get this working as an Azure cloud service as it shouldn't be necessary for me to maintain the PHP installation in a full VM.
UPDATE 2
I tried restarting the cloud service, then remotely connecting to an instance of the cloud service and looking in the Application Event Viewer. I saw that WMI logged 1 error during startup:
Event filter with query "SELECT * FROM __InstanceModificationEvent WITHIN 60
WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99"
could not be reactivated in namespace "//./root/CIMV2" because of error 0x80041003
Events cannot be delivered through this filter until the problem is corrected.
I then ran the above script a couple of times and rechecked the Application Event Viewer but nothing had been logged.
I also checked the IIS logs and the Azure log, startup-tasks-log and startup-tasks-error-log files to no avail.

After giving up on solving this last year. I made another concerted effort to resolve it this week and succeeded!
I basically needed to (a) enable the php_com_dotnet.dll to allow use of COM and VARIANT classes, and (b) grant default Local Activation permission to IIS_IUSRS to allow access to the COM component. I've listed the detailed steps I took below...
Add a folder called php in the web role's bin folder
As of PHP 5.3.15 / 5.4.5, in order to use the COM and VARIANT
classes, the php_com_dotnet.dll needs to be enabled inside of
php.ini. Previous versions of PHP enabled these extensions by
default (source: http://www.php.net/manual/en/com.installation.php). In
the php folder, create a php.ini file containing only the following
lines...
[COM_DOT_NET]
extension=php_com_dotnet.dll
Create a SetDCOMPermission.reg file in the bin folder which contains the following content, to grant default Local Activation permission to IIS_IUSRS...
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\OLE]
"DefaultLaunchPermission"=hex(3):01,00,04,80,74,00,00,00,84,00,00,00,00,00,\
00,00,14,00,00,00,02,00,60,00,04,00,00,00,00,00,14,00,1F,00,00,00,01,01,00,\
00,00,00,00,05,12,00,00,00,00,00,18,00,1F,00,00,00,01,02,00,00,00,00,00,05,\
20,00,00,00,20,02,00,00,00,00,18,00,0B,00,00,00,01,02,00,00,00,00,00,05,20,\
00,00,00,38,02,00,00,00,00,14,00,1F,00,00,00,01,01,00,00,00,00,00,05,04,00,\
00,00,01,02,00,00,00,00,00,05,20,00,00,00,20,02,00,00,01,02,00,00,00,00,00,\
05,20,00,00,00,20,02,00,00
I don't know if the above registry change will work for everyone, so the process I used is documented here (it essentially involved using a program called RegFromApp to record the changes made to the registry when granting default Local Activation permissions for IIS_IUSRS in COM Security and to save the registry changes as a .reg file into the web role's bin folder).
Copy and paste the out-of-process COM component (OleAutomationFeasibilityModel.exe file) into the bin folder
Create a RegisterOleAutomationFeasibilityModel.cmd file in the bin folder to register the COM component and set the necessary permissions to launch it...
chcp 1252>NUL
OleAutomationFeasibilityModel.exe /regserver
regedit.exe /s SetDCOMPermission.reg
exit /b 0
In the ServiceDefinition.csdef file, insert a reference to the .cmd file immediately before the closing Startup tag...
<Task commandLine="RegisterOleAutomationFeasibilityModel.cmd" executionContext="elevated" />
Publish the web role
Hope that helps someone in a similar situation!

Azure for PHP: "ServiceDefinition.rd" does not exist in Service directory "ServiceDefinition.csx"

I am trying to deploy PHP app with Windows Azure Command Line tool for PHP, but unable to make .cspkg and i'm getting this error:
Runtime Exception: 0: Default document “ServiceDefinition.rd” does not exist in Service directory “ServiceDefinition.csx”!
Error: Unexpected Exit
I have following link for guidelines
http://azurephp.interoperabilitybridges.com/articles/deploying-your-first-php-application-with-the-windows-azure-command-line-tools-for-php

The documentation you are using is OLD and had several issues in past so I would suggest using the latest supported way to create PHP application in Windows Azure:
Download new PHP SDK for Windows Azure which is tested with Windows Azure SDK 1.6. You can download the new PHP SDK from the link below:
http://phpazure.codeplex.com/
Follow the documentation as described here:
http://phpazure.codeplex.com/documentation

Try to use –phpRuntime=”C:\Program Files\PHP\v5.3″ instead of –phpRuntime=”C:\Program Files\PHP”.
i had the some error look here may be you find a solution for your problem :
http://marvelley.com/2011/03/03/24-hours-of-windows/

SoapClient: faultcode WSDL

When I try to use SoapClient:
try {
$client = new SoapClient('http://someurl/somefile.wsdl');
} catch (SoapFault $e) {
var_dump($e);
}
I have catch error with:
["faultstring"] => "SOAP-ERROR: Parsing WSDL: Couldn't load from 'http://someurl/somefile.wsdl' : failed to load external entity "http://someurl/somefile.wsdl"
["faultcode"] => "WSDL"
I can manually download http://someurl/somefile.wsdl and can file_get_contents for this file. I try to use it before on different computer and it worked. Possible problem with php or apache settings..
ArchLinux with last updates for php and apache. I tried to enable all php extensions.

Were you able to get wsdl using file_get_contents() in browser?
I had similar issue recently in Archlinux with same faultstring, no matter what wsdl file was used. The same code was working without any problem on other Archlinux machine and Windows XP box.
After some research, it came out that problem arose only when I tried to access the page in browser - script accessed from command line worked as expected. Then I changed the script to download the wsdl file directly, using aforementioned file_get_contents() - it gave me a warning "php_network_getaddresses: getaddrinfo failed: Name or service not known".
Few tutorials (on SO, or this one: http://albertech.net/2011/05/fix-php_network_getaddresses-getaddrinfo-failed-name-or-service-not-known/ ) later I haven't fought off the problem yet. But then I discovered what introduced the issues: I had been running NetworkManager since the installation of Arch (to better handle wireless), and few weeks later I've added mysqld and httpd as last to DAEMONS section in rc.conf - it seems this broke DNS resolution for apache.
Having two solutions (go back to starting servers manually or try other network manager) I've switched to wicd and haven't run into the issue again.

Categories