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package ca.uhn.hl7v2.hoh.llp; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.nio.charset.Charset; |
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import ca.uhn.hl7v2.hoh.api.DecodeException; |
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import ca.uhn.hl7v2.hoh.api.IAuthorizationServerCallback; |
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import ca.uhn.hl7v2.hoh.encoder.AbstractHl7OverHttpDecoder; |
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import ca.uhn.hl7v2.hoh.encoder.Hl7OverHttpRequestDecoder; |
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import ca.uhn.hl7v2.hoh.encoder.Hl7OverHttpResponseDecoder; |
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import ca.uhn.hl7v2.hoh.encoder.NoMessageReceivedException; |
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import ca.uhn.hl7v2.hoh.sign.SignatureVerificationException; |
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import ca.uhn.hl7v2.hoh.util.HTTPUtils; |
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import ca.uhn.hl7v2.hoh.util.ServerRoleEnum; |
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import ca.uhn.hl7v2.llp.HL7Reader; |
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import ca.uhn.hl7v2.llp.LLPException; |
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class HohLlpReader implements HL7Reader { |
20 | 5 | private static final org.slf4j.Logger ourLog = org.slf4j.LoggerFactory.getLogger(HohLlpReader.class); |
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private InputStream myInputStream; |
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private Hl7OverHttpLowerLayerProtocol myProtocol; |
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private HohLlpWriter myWriter; |
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29 | 65 | public HohLlpReader(Hl7OverHttpLowerLayerProtocol theProtocol) { |
30 | 65 | myProtocol = theProtocol; |
31 | 65 | } |
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public void close() throws IOException { |
37 | 0 | myInputStream.close(); |
38 | 0 | } |
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public String getMessage() throws LLPException, IOException { |
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AbstractHl7OverHttpDecoder decoder; |
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43 | 165 | if (myProtocol.getRole() == ServerRoleEnum.CLIENT) { |
44 | 70 | decoder = new Hl7OverHttpResponseDecoder(); |
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} else { |
46 | 95 | Hl7OverHttpRequestDecoder requestDecoder = new Hl7OverHttpRequestDecoder(); |
47 | 95 | requestDecoder.setAuthorizationCallback(myProtocol.getAuthorizationServerCallback()); |
48 | 95 | decoder = requestDecoder; |
49 | 95 | decoder.setSigner(myProtocol.getSigner()); |
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} |
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try { |
54 | 165 | decoder.readHeadersAndContentsFromInputStreamAndDecode(myInputStream); |
55 | 0 | } catch (DecodeException e) { |
56 | 0 | if (myProtocol.getRole() == ServerRoleEnum.CLIENT) { |
57 | 0 | throw new LLPException("Failed to process response", e); |
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} else { |
59 | 0 | ourLog.info("Failed to read contents", e); |
60 | 0 | HTTPUtils.write400BadRequest(myWriter.getOutputStream(), e.getMessage()); |
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62 | 0 | myInputStream.close(); |
63 | 0 | myWriter.getOutputStream().close(); |
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65 | 0 | throw new LLPException("Failed to read message", e); |
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} |
67 | 30 | } catch (NoMessageReceivedException e) { |
68 | 30 | return null; |
69 | 0 | } catch (SignatureVerificationException e) { |
70 | 0 | throw new LLPException("Failed to verify message signature", e); |
71 | 70 | } |
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73 | 70 | if (myProtocol.getRole() == ServerRoleEnum.SERVER) { |
74 | 35 | Charset charset = decoder.getCharset(); |
75 | 35 | myWriter.setCharsetForNextMessage(charset); |
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77 | 35 | IAuthorizationServerCallback authorizationCallback = myProtocol.getAuthorizationServerCallback(); |
78 | 35 | if (authorizationCallback != null) { |
79 | 0 | boolean auth = authorizationCallback.authorize(decoder.getPath(), decoder.getUsername(), decoder.getPassword()); |
80 | 0 | if (!auth) { |
81 | 0 | HTTPUtils.write401Unauthorized(myWriter.getOutputStream()); |
82 | 0 | throw new LLPException("Authorization at URI[" + decoder.getPath() + "] failed for user[" + decoder.getUsername() + "]"); |
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} |
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} |
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} |
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87 | 70 | return decoder.getMessage(); |
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} |
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public void setInputStream(InputStream theInputStream) throws IOException { |
92 | 65 | myInputStream = theInputStream; |
93 | 65 | } |
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void setWriter(HohLlpWriter theWriter) { |
96 | 65 | myWriter = theWriter; |
97 | 65 | } |
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} |