PlantUML Web Server

@startuml
start
if (status is 302?) then (yes)
  :put request back into the queue;
  -> enter connection validation;
  partition ConnectionValidator {
    repeat :start validation;
      if (validationRetryCount < 5) then (yes)
        #aaeeff:validationRetryCount ++;
        #aaeeff:Reset successCounter and failCounter;
        :<b>send request to status.php;
        :redirectionDepth = 0;
        while (status is 302 and redirectionDepth < 5) is (yes)
          :follow redirect;
          :redirectionDepth ++;
        endwhile (no)
        if (status is 200) then (yes)
          if (valid content) then (yes)
            #palegreen:successCounter ++;
          else (no)
            #pink:failCounter ++;
          endif
        else (no)
          #pink:failCounter ++;
        endif
        :<b>send authenticated request to WebDAV endpoint;
        if (status is 200) then (yes)
          if (valid content) then (yes)
            #palegreen:successCounter ++;
          else (no)
            #pink:failCounter ++;
          endif
        else (no)
          if (status is 401) then (yes)
            #aaeeff:trigger auth refresh;
          else (no)
          endif
          #pink:failCounter ++;
        endif
      else (no)
        :stop validation &\npause connection;
        :alert user;
        ->User presses Retry;
        :reset validationRetryCount;
        :re-start validation;
        end
      endif
    repeat while (successCounter >= failCounter) is (no);
    -> yes;
  }
  :resend queued request;
else (no)
endif
:handle response;
@enduml

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