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<p class="MsoNormal"><span lang="EN-US">Hello.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Is it possible to login to IDP 3.2.1 (=get shib_idp_session) without sending username/password, only by sending some HTTP header (REMOTE_USER)? If yes, how?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">When there is in my idp.properties "idp.authn.flows= Password"
</span>(and the client is my browser, or my Java program), <span lang="EN-US">everything works fine. When I change it to "idp.authn.flows=RemoteUser", I received SAMLResponse with Status "AuthnFailed":<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:normal;text-autospace:none"><span style="font-size:8.0pt;font-family:Consolas;color:#3F7F5F"><saml2p:Status></span><span style="font-size:8.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:normal;text-autospace:none"><span style="font-size:8.0pt;font-family:Consolas;color:#3F7F5F"> <saml2p:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Requester"></span><span style="font-size:8.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:normal;text-autospace:none"><span style="font-size:8.0pt;font-family:Consolas;color:#3F7F5F"> <saml2p:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:AuthnFailed"/></span><span style="font-size:8.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:normal;text-autospace:none"><span style="font-size:8.0pt;font-family:Consolas;color:#3F7F5F"> </saml2p:StatusCode></span><span style="font-size:8.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:normal;text-autospace:none"><span style="font-size:8.0pt;font-family:Consolas;color:#3F7F5F"> <saml2p:StatusMessage>authn</saml2p:StatusMessage></span><span style="font-size:8.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;line-height:106%;font-family:Consolas;color:#3F7F5F"></saml2p:Status></span><span lang="EN-US" style="font-size:8.0pt;line-height:106%"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">There is in idp-process.log:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">2016-08-31 17:34:08,081 - INFO [net.shibboleth.idp.authn.impl.SelectAuthenticationFlow:130] - Profile Action SelectAuthenticationFlow: Moving incomplete flow authn/RemoteUser to intermediate set<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">2016-08-31 17:34:08,082 - ERROR [net.shibboleth.idp.authn.impl.SelectAuthenticationFlow:296] - Profile Action SelectAuthenticationFlow: No potential flows left to choose from, authentication will fail<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">When I am trying to authenticate by HTTP header REMOTE_USER, I use my browser with Fiddler proxy (with option Rules > Automatic breakpoints > Before Request and I add manually HTTP header "REMOTE_USER: rchrenko" to every
request) or I use my Java program, which do the same.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">My IDP is installed on Tomcat 8.5.3. Tomcat performs no authentication for "/idp" context.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you,<o:p></o:p></p>
<p class="MsoNormal">Roman<o:p></o:p></p>
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