Code Duplication    Length = 4-4 lines in 4 locations

src/Httprequest.php 4 locations

@@ 693-696 (lines=4) @@
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        switch ( $this->authenticationMethod ) {
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            case 'BASIC':
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                curl_setopt($this->ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
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                curl_setopt($this->ch, CURLOPT_USERPWD, $this->user.":".$this->pass); 
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                break;
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            case 'DIGEST':
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                curl_setopt($this->ch, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
@@ 698-701 (lines=4) @@
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                curl_setopt($this->ch, CURLOPT_USERPWD, $this->user.":".$this->pass); 
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                break;
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            case 'DIGEST':
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                curl_setopt($this->ch, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
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                curl_setopt($this->ch, CURLOPT_USERPWD, $this->user.":".$this->pass); 
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                break;
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            case 'SPNEGO':
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                curl_setopt($this->ch, CURLOPT_HTTPAUTH, CURLAUTH_GSSNEGOTIATE);
@@ 703-706 (lines=4) @@
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                curl_setopt($this->ch, CURLOPT_USERPWD, $this->user.":".$this->pass); 
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                break;
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            case 'SPNEGO':
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                curl_setopt($this->ch, CURLOPT_HTTPAUTH, CURLAUTH_GSSNEGOTIATE);
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                curl_setopt($this->ch, CURLOPT_USERPWD, $this->user.":".$this->pass); 
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                break;
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            case 'NTLM':
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                curl_setopt($this->ch, CURLOPT_HTTPAUTH, CURLAUTH_NTLM);
@@ 708-711 (lines=4) @@
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                curl_setopt($this->ch, CURLOPT_USERPWD, $this->user.":".$this->pass); 
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                break;
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            case 'NTLM':
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                curl_setopt($this->ch, CURLOPT_HTTPAUTH, CURLAUTH_NTLM);
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                curl_setopt($this->ch, CURLOPT_USERPWD, $this->user.":".$this->pass); 
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                break;
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        }
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