How to authenticate with NTLM when using Microsoft.Graph?
We're using the Microsoft.Graph package to connect to our Exchange 2016 Graph v2.0 API. I'm trying to find out how to create an IAuthenticationProvider to authenticate requests. I'm doing this inside an ASP.NET Core application, using c#.
When opening urls (e.g. https://outlook.example.org/api/v2.0/me/calendars) in Chrome we get a dialog to authenticate with username and password, and if I inspect the requests with Fiddler I can see that NTLM is negotiated for authentication.
So I suppose I need to construct an IAuthenticationProvider that supports NTLM, but it's unclear to me how to do so. I tried
Googling for a solutioin, but found no relevant results.- Understanding how NTLM works but that doesn't help much.
Any help on NTLM authentication with Microsoft.Graph?
PS. I'd need a solution that's cross-platform, so it can also run Linux, Mac, and Windows.
As a footnote, I tried to make sure it is really an authentication issue I'd be having, by creating a new project with RestSharp and xUnit, and wrote this test:
[Fact]
public void DoStuff()
{
var client = new RestSharp.RestClient("https://outlook.example.org/api/v2.0")
{
Authenticator = new NtlmAuthenticator("username", "password"),
};
var response = client.Execute<dynamic>(new RestRequest("/me/calendars"));
Assert.NotNull(response.Data);
}
This test passes and the debugger shows me that response.Data contains sensible stuff. So with this setup the NTLM stuff does work. (Don't think I can reuse the RestSharp NTLM authenticator since it uses WebRequest under the hood, whereas the Graph SDK seems to use HttpClient?)
c# .net-core microsoft-graph ntlm
asked Nov 23 '18 at 13:35
Jeroen
35.5k23121194
add a comment |
We're using the Microsoft.Graph package to connect to our Exchange 2016 Graph v2.0 API. I'm trying to find out how to create an IAuthenticationProvider to authenticate requests. I'm doing this inside an ASP.NET Core application, using c#.
When opening urls (e.g. https://outlook.example.org/api/v2.0/me/calendars) in Chrome we get a dialog to authenticate with username and password, and if I inspect the requests with Fiddler I can see that NTLM is negotiated for authentication.
So I suppose I need to construct an IAuthenticationProvider that supports NTLM, but it's unclear to me how to do so. I tried
Googling for a solutioin, but found no relevant results.- Understanding how NTLM works but that doesn't help much.
Any help on NTLM authentication with Microsoft.Graph?
PS. I'd need a solution that's cross-platform, so it can also run Linux, Mac, and Windows.
As a footnote, I tried to make sure it is really an authentication issue I'd be having, by creating a new project with RestSharp and xUnit, and wrote this test:
[Fact]
public void DoStuff()
{
var client = new RestSharp.RestClient("https://outlook.example.org/api/v2.0")
{
Authenticator = new NtlmAuthenticator("username", "password"),
};
var response = client.Execute<dynamic>(new RestRequest("/me/calendars"));
Assert.NotNull(response.Data);
}
This test passes and the debugger shows me that response.Data contains sensible stuff. So with this setup the NTLM stuff does work. (Don't think I can reuse the RestSharp NTLM authenticator since it uses WebRequest under the hood, whereas the Graph SDK seems to use HttpClient?)
c# .net-core microsoft-graph ntlm
asked Nov 23 '18 at 13:35
Jeroen
35.5k23121194
add a comment |
We're using the Microsoft.Graph package to connect to our Exchange 2016 Graph v2.0 API. I'm trying to find out how to create an IAuthenticationProvider to authenticate requests. I'm doing this inside an ASP.NET Core application, using c#.
When opening urls (e.g. https://outlook.example.org/api/v2.0/me/calendars) in Chrome we get a dialog to authenticate with username and password, and if I inspect the requests with Fiddler I can see that NTLM is negotiated for authentication.
So I suppose I need to construct an IAuthenticationProvider that supports NTLM, but it's unclear to me how to do so. I tried
Googling for a solutioin, but found no relevant results.- Understanding how NTLM works but that doesn't help much.
Any help on NTLM authentication with Microsoft.Graph?
PS. I'd need a solution that's cross-platform, so it can also run Linux, Mac, and Windows.
As a footnote, I tried to make sure it is really an authentication issue I'd be having, by creating a new project with RestSharp and xUnit, and wrote this test:
[Fact]
public void DoStuff()
{
var client = new RestSharp.RestClient("https://outlook.example.org/api/v2.0")
{
Authenticator = new NtlmAuthenticator("username", "password"),
};
var response = client.Execute<dynamic>(new RestRequest("/me/calendars"));
Assert.NotNull(response.Data);
}
This test passes and the debugger shows me that response.Data contains sensible stuff. So with this setup the NTLM stuff does work. (Don't think I can reuse the RestSharp NTLM authenticator since it uses WebRequest under the hood, whereas the Graph SDK seems to use HttpClient?)
c# .net-core microsoft-graph ntlm
asked Nov 23 '18 at 13:35
Jeroen
35.5k23121194
We're using the Microsoft.Graph package to connect to our Exchange 2016 Graph v2.0 API. I'm trying to find out how to create an IAuthenticationProvider to authenticate requests. I'm doing this inside an ASP.NET Core application, using c#.
When opening urls (e.g. https://outlook.example.org/api/v2.0/me/calendars) in Chrome we get a dialog to authenticate with username and password, and if I inspect the requests with Fiddler I can see that NTLM is negotiated for authentication.
So I suppose I need to construct an IAuthenticationProvider that supports NTLM, but it's unclear to me how to do so. I tried
Googling for a solutioin, but found no relevant results.- Understanding how NTLM works but that doesn't help much.
Any help on NTLM authentication with Microsoft.Graph?
PS. I'd need a solution that's cross-platform, so it can also run Linux, Mac, and Windows.
As a footnote, I tried to make sure it is really an authentication issue I'd be having, by creating a new project with RestSharp and xUnit, and wrote this test:
[Fact]
public void DoStuff()
{
var client = new RestSharp.RestClient("https://outlook.example.org/api/v2.0")
{
Authenticator = new NtlmAuthenticator("username", "password"),
};
var response = client.Execute<dynamic>(new RestRequest("/me/calendars"));
Assert.NotNull(response.Data);
}
This test passes and the debugger shows me that response.Data contains sensible stuff. So with this setup the NTLM stuff does work. (Don't think I can reuse the RestSharp NTLM authenticator since it uses WebRequest under the hood, whereas the Graph SDK seems to use HttpClient?)
c# .net-core microsoft-graph ntlm
c# .net-core microsoft-graph ntlm
asked Nov 23 '18 at 13:35
Jeroen
35.5k23121194
asked Nov 23 '18 at 13:35
Jeroen
35.5k23121194
edited Nov 23 '18 at 14:59
asked Nov 23 '18 at 13:35
Jeroen
35.5k23121194
asked Nov 23 '18 at 13:35
Jeroen
35.5k23121194
asked Nov 23 '18 at 13:35
Jeroen
35.5k23121194
35.5k23121194
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53447721%2fhow-to-authenticate-with-ntlm-when-using-microsoft-graph%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53447721%2fhow-to-authenticate-with-ntlm-when-using-microsoft-graph%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
