Make e-mail host configurable

src/PrayerTracker/Email.fs

@@ -2,10 +2,8 @@
 module PrayerTracker.Email
 
 open MailKit.Net.Smtp
-open MailKit.Security
 open Microsoft.Extensions.Localization
 open MimeKit
-open MimeKit.Text
 open PrayerTracker.Entities
 
 /// Parameters required to send an e-mail
@@ -35,11 +33,13 @@ type EmailOptions =
 /// The e-mail address from which e-mail is sent
 let private fromAddress = "prayer@bitbadger.solutions"
 
+open MailKit.Security
+open Microsoft.Extensions.Configuration
+
 /// Get an SMTP client connection
-// FIXME: make host configurable
+let getConnection (cfg : IConfiguration) = task {
-let getConnection () = task {
     let client = new SmtpClient ()
-    do! client.ConnectAsync ("127.0.0.1", 25, SecureSocketOptions.None)
+    do! client.ConnectAsync (cfg.GetConnectionString "SmtpServer", 25, SecureSocketOptions.None)
     return client
 }
       
@@ -51,6 +51,8 @@ let createMessage opts =
     msg.ReplyTo.Add (MailboxAddress (opts.Group.Preferences.EmailFromName, opts.Group.Preferences.EmailFromAddress))
     msg
 
+open MimeKit.Text
+
 /// Create an HTML-format e-mail message
 let createHtmlMessage opts =
     let bodyText =

src/PrayerTracker/PrayerRequest.fs

@@ -79,6 +79,8 @@ let edit reqId : HttpHandler = requireAccess [ User ] >=> fun next ctx -> task {
         | Result.Error e -> return! e
 }
 
+open Microsoft.Extensions.Configuration
+
 // GET /prayer-requests/email/[date]
 let email date : HttpHandler = requireAccess [ User ] >=> fun next ctx -> task {
     let  s          = ctx.Strings
@@ -86,7 +88,7 @@ let email date : HttpHandler = requireAccess [ User ] >=> fun next ctx -> task {
     let! list       = generateRequestList ctx listDate
     let  group      = ctx.Session.CurrentGroup.Value
     let! recipients = Members.forGroup group.Id
-    use! client     = Email.getConnection ()
+    use! client     = Email.getConnection (ctx.GetService<IConfiguration> ())
     do! Email.sendEmails
             {   Client        = client
                 Recipients    = recipients

src/PrayerTracker/SmallGroup.fs

@@ -245,6 +245,7 @@ let savePreferences : HttpHandler = requireAccess [ User ] >=> validateCsrf >=>
 
 open Giraffe.ViewEngine
 open PrayerTracker.Views.CommonFunctions
+open Microsoft.Extensions.Configuration
 
 // POST /small-group/announcement/send
 let sendAnnouncement : HttpHandler = requireAccess [ User ] >=> validateCsrf >=> fun next ctx -> task {
@@ -268,7 +269,7 @@ let sendAnnouncement : HttpHandler = requireAccess [ User ] >=> validateCsrf >=>
                 return users |> List.map (fun u -> { Member.empty with Name = u.Name; Email = u.Email })
             else return! Members.forGroup group.Id
         }
-        use! client = Email.getConnection ()
+        use! client = Email.getConnection (ctx.GetService<IConfiguration> ())
         do! Email.sendEmails
                 {   Client        = client
                     Recipients    = recipients