Today I implemented my first PHP Web Service and successfully used it by C# client or, more precisely, I created WCF service contract in C# and implemented it in PHP. A new option “singlewsdl” in WCF 4.5 helped me a lot. Using this option I generated the service description as a single WSDL-file without additional XSD-files containing the data contracts of the service. Then I uploaded this WSDL-file on my Web Server and written PHP code for all the methods of the service.
Author Archives: dmitriano
Integrating C# and PHP using XML-RPC and WCF
While investigating how to make C# and PHP interact with each other I run into an interesting extension of WCF Service Model for working over XML-RPC protocol. I played a bit with this extension and after fixing some bug in its source code I made it work with my little custom XML-RPC server implemented as Joomla XML-RPC plugin.
How to make PHP Web Service with NuSoap
While investigating how to create a Web Service in PHP I run into NuSoap library, that can generate WSDL based on some matadata describing Web Service method signatures and the data structures. I downloaded NuSoap library and found some trivial sample that started working after adding the highlighted line of code:
How to specify WPF control size in millimeters using XAML
The first thing that we need to do to use millimeters in XAML is to define simple Mm2PixelConverter class that performs the conversion from millimeter to pixels:
[ValueConversion(typeof(double), typeof(double))]
class Mm2PixelConverter : IValueConverter
{
#region IValueConverter Members
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
double mm = (double)value;
return WinUtil.Mm2Pixel(mm);
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
#endregion
}
How I fixed Nginx 502 Bad Gateway error
Today to my grate surprise I got “502 Bad Gateway” error while trying to open some specific URL on my web site:
I took a look at the Nginx log file located in /var/log/nginx/ directory on my machine and seen the following:
How to configure IIS to host an FTP site on Windows 7
Go to Control Panel->Programs and Features->Turn Windows features on or off, select FTP Service and IIS Management Console under Internet Information Services and press OK button:
Installing and configuring FTP server on Ubuntu
Install FTP server:
apt-get install proftpd
To jail all users in their home directories uncomment line
DefaultRoot ~
in /etc/proftpd/proftpd.conf. To jail all but one users modify this line as follows:
DefaultRoot ~ !<user1>
note that there is a space after ‘~’.
How I configured sendmail for PHP on Ubuntu Server 12.04
Preventing sendmail from been very slow
The first thing that I did after installing sendmail with
aptitude install sendmail
is I put “gate.localhost” (gate is my server name) to /etc/hosts so it looks like this:
127.0.0.1 localhost.localdomain localhost 127.0.1.1 gate.localhost gate # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters
With default /etc/hosts containing only “gate” and “localhost” sendmail hangs up for a while and writes to /var/log/mail.log the following message:
My unqualified host name (gate) unknown; sleeping for retry.
Painful bug with apache2-mpm-itk –Apache randomly returns 403 Forbidden
Today to my great surprise I notices that my Apache web server randomly returns 403 Forbidden HTTP error code to search engine robots. Yandex Search Engine reported that on my favorite website 263 pages are OK and 210 pages has 403 status and some other site has 394/139 pages respectively.
In Apache error logs I found the following messages:
Permission denied: /home/<site-name>/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable
as far as I see they appears whenever this 403 error is reported.
Oracle Database Cold Backup and Restore Script
In 2008 when I worked with some Oracle databases under Solaris and AIX, I spent some time to figure out how to make the database backup and restore and decided to use cold backup as the most straightforward method. As far as I remember, to backup the database I shutted down Oracle and then simply archive the database files using “zip” command. To restore the database I used the following shell script that extracts archived files and adjust some Oracle settings:
