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Add HTTP-POST binding support for IdP SingleSignOnService #116

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Add HTTP-POST binding support for IdP SingleSignOnService #116

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9eb5e32
Added support for the http post binding at the IdP Single Signon Service
Jun 10, 2017
8bfe16c
Update the properties file to reflect support for the HTTP-POST binding
Jul 15, 2017
94eb327
Add a content type and content length to this response. If not speci…
Nov 6, 2017
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2 changes: 1 addition & 1 deletion samples/java-saml-tookit-jspsample/src/main/resources/onelogin.saml.properties
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Original file line number Diff line number Diff line change
Expand Up @@ -58,7 +58,7 @@ onelogin.saml2.idp.single_sign_on_service.url =

# SAML protocol binding to be used when returning the <Response>
# message. Onelogin Toolkit supports for this endpoint the
# HTTP-Redirect binding only
# HTTP-Redirect and HTTP-POST bindings
onelogin.saml2.idp.single_sign_on_service.binding = urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect

# SLO endpoint info of the IdP.
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6 changes: 5 additions & 1 deletion toolkit/src/main/java/com/onelogin/saml2/Auth.java
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Expand Up @@ -292,7 +292,11 @@ public String login(String returnTo, Boolean forceAuthn, Boolean isPassive, Bool
if (!stay) {
LOGGER.debug("AuthNRequest sent to " + ssoUrl + " --> " + samlRequest);
}
return ServletUtils.sendRedirect(response, ssoUrl, parameters, stay);

if (Constants.BINDING_HTTP_POST.equals(settings.getIdpSingleSignOnServiceBinding()))
return ServletUtils.sendPost(response, ssoUrl, parameters, stay);
else // Anything else is assumed to be a redirect
return ServletUtils.sendRedirect(response, ssoUrl, parameters, stay);
}

/**
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19 changes: 19 additions & 0 deletions toolkit/src/main/java/com/onelogin/saml2/servlet/ServletUtils.java
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Expand Up @@ -9,6 +9,7 @@
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang3.StringEscapeUtils;
import org.apache.commons.lang3.StringUtils;

import com.onelogin.saml2.http.HttpRequest;
Expand Down Expand Up @@ -180,6 +181,24 @@ public static String sendRedirect(HttpServletResponse response, String location,
return target;
}

public static String sendPost(HttpServletResponse response, String location, Map<String, String> parameters, Boolean stay) throws IOException {
StringBuilder html = new StringBuilder();
html.append("<html>\n<head>\n<title>SAML Post</title>\n</head>\n")
.append("<body onload=\"document.getElementById('theform').submit();\">\n")
.append("<form id=\"theform\" action=\"").append(location).append("\" method=\"post\">\n");
for (String name : parameters.keySet()) {
String value = parameters.get(name);
html.append("<input type=\"hidden\" name=\"").append(name).append("\" value=\"").append(StringEscapeUtils.escapeHtml4(value)).append("\"/>\n");
}
html.append("</form>\n</body>\n</html>");
if (!stay) {
response.setContentType("text/html;charset=UTF-8");
response.setContentLength(html.toString().getBytes("UTF-8").length);
response.getWriter().write(html.toString());
}
return html.toString();
}

/**
* Redirect to location url
*
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