How to OpenWebConfiguration with physical path?
I have a win form that creates a site in IIS7. One function needs to open the web.config file and make a few updates. (connection string, smtp, impersonation)
However I do not have the virtual path, just the phy开发者_JAVA百科sical path.
Is there any way I can still use WebConfigurationManager?
I need to use it's ability to find section and read/write.
System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration
You will have to map the physicalPath to a virtualPath. Here is how you would do that.
using System.Web.Configuration; //Reference the System.Web DLL (project needs to be using .Net 4.0 full, not client framework)
public static Configuration OpenConfigFile(string configPath)
{
var configFile = new FileInfo(configPath);
var vdm = new VirtualDirectoryMapping(configFile.DirectoryName, true, configFile.Name);
var wcfm = new WebConfigurationFileMap();
wcfm.VirtualDirectories.Add("/", vdm);
return WebConfigurationManager.OpenMappedWebConfiguration(wcfm, "/");
}
Vadim's answer worked great on our dev server, but bombed out on our live server with the following message:
System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values. Parameter name: site
To correct this, I found another overload for WebConfigurationManager.OpenMappedWebConfiguration
that takes the IIS website name as the third parameter. The result is as follows:
public static Configuration OpenConfigFile(string configPath)
{
var configFile = new FileInfo(configPath);
var vdm = new VirtualDirectoryMapping(configFile.DirectoryName, true, configFile.Name);
var wcfm = new WebConfigurationFileMap();
wcfm.VirtualDirectories.Add("/", vdm);
return WebConfigurationManager.OpenMappedWebConfiguration(wcfm, "/", "iis_website_name");
}
Vadim's answer was exactly what I needed, but I came across the same issue as Kieth, and his solution did the trick!
I thought I'd add though, that the IIS Website name can be retrieved by calling:
System.Web.Hosting.HostingEnvironment.ApplicationHost.GetSiteName();
Also, cjbarth's code included a tidy solution for those testing in environments where the location of wwwroot and Web.config can vary:
System.Web.HttpContext.Current.Server.MapPath("~");
So with these in mind another slight improvement on Vadim's function would read:
public static Configuration GetWebConfig() {
var webConfigFile = new FileInfo("Web.config");
var wwwRootPath = HttpContext.Current.Server.MapPath("~");
var vdm = new VirtualDirectoryMapping(wwwRootPath, true, webConfigFile.Name);
var wcfm = new WebConfigurationFileMap();
wcfm.VirtualDirectories.Add("/", vdm);
var siteName = HostingEnvironment.ApplicationHost.GetSiteName();
return WebConfigurationManager.OpenMappedWebConfiguration(wcfm, "/", siteName);
}
I ended up using Powershell.
$file = "D:\Applications\XXX\Private\XXX\XXXX\web.config"
$configurationAssembly = "System.Configuration, Version=4.0.0.0, Culture=Neutral, PublicKeyToken=b03f5f7f11d50a3a"
[Void] [Reflection.Assembly]::Load($configurationAssembly)
$filepath = New-Object System.Configuration.ExeConfigurationFileMap
$filepath.ExeConfigFileName = $file
$configuration = [System.Configuration.ConfigurationManager]::OpenMappedExeConfiguration($filepath,0)
$section = $configuration.GetSection("appSettings")
Write-Host "Set the Protection Provider"
if (-not $section.SectionInformation.IsProtected)
{
$section.SectionInformation.ProtectSection("DataProtectionConfigurationProvider")
$configuration.Save()
}
Building on Vadim's answer, I found what he wrote didn't exactly work for my situation, so I used this instead:
Dim connectionSettings As New ConnectionStringSettings("mySQLite", ConnectionStringHelper.MyConnectionString)
Dim dummyVirtualPath As String = "/MyApp"
Dim virtualDirMap = New VirtualDirectoryMapping(Server.MapPath("~"), True)
Dim webConfigFileMap = New WebConfigurationFileMap()
webConfigFileMap.VirtualDirectories.Add(dummyVirtualPath, virtualDirMap)
Dim mappedConfigFile = WebConfigurationManager.OpenMappedWebConfiguration(webConfigFileMap, dummyVirtualPath)
Dim config As System.Configuration.Configuration = mappedConfigFile WebConfigurationManager.OpenWebConfiguration(Server.MapPath("~") & "/")
Dim csSection As ConnectionStringsSection = config.ConnectionStrings
If csSection.ConnectionStrings("mySQLite") IsNot Nothing AndAlso csSection.ConnectionStrings("mySQLite").ConnectionString <> connectionSettings.ConnectionString Then
csSection.ConnectionStrings("mySQLite").ConnectionString = connectionSettings.ConnectionString
config.Save()
ConfigurationManager.RefreshSection(csSection.SectionInformation.Name)
End If
In case anyone else is trying what I'm trying and finds this, the purpose of my doing this was to get SimpleMembershipProvider
, which inherits from ExtendedMembershipProvider
, to work with SQLite. To do that, I created the tables manually per this link: SimpleMembershipProvider in MVC4, and then used this command in my Global.asax
file's Application_Start
routine:
WebSecurity.InitializeDatabaseConnection(ConnectionStringHelper.MyConnectionString, "System.Data.SQLite", "Users", "UserID", "Email", False)
Which it turns out didn't require me to actually re-write my web.config file at all. (There were also a lot of web.config changes I had to do, but that is even more out of the scope of this question.)
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