mirror of
https://github.com/go-gitea/gitea.git
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Implement http signatures support for the API (#17565)
Fixes #12338 This allows use to talk to the API with our ssh certificate (and/or ssh-agent) without needing to fetch an API key or tokens. It will just automatically work when users have added their ssh principal in gitea. This needs client code in tea Update: also support normal pubkeys ref: https://tools.ietf.org/html/draft-cavage-http-signatures Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: zeripath <art27@cantab.net> Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
parent
48be5e77e5
commit
e528e2b435
1
go.mod
1
go.mod
@ -29,6 +29,7 @@ require (
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github.com/go-chi/chi/v5 v5.0.7
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github.com/go-chi/chi/v5 v5.0.7
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github.com/go-chi/cors v1.2.1
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github.com/go-chi/cors v1.2.1
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github.com/go-enry/go-enry/v2 v2.8.2
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github.com/go-enry/go-enry/v2 v2.8.2
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github.com/go-fed/httpsig v1.1.0
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github.com/go-git/go-billy/v5 v5.3.1
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github.com/go-git/go-billy/v5 v5.3.1
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github.com/go-git/go-git/v5 v5.4.3-0.20210630082519-b4368b2a2ca4
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github.com/go-git/go-git/v5 v5.4.3-0.20210630082519-b4368b2a2ca4
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github.com/go-ldap/ldap/v3 v3.4.3
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github.com/go-ldap/ldap/v3 v3.4.3
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2
go.sum
2
go.sum
@ -468,6 +468,8 @@ github.com/go-enry/go-enry/v2 v2.8.2 h1:uiGmC+3K8sVd/6DOe2AOJEOihJdqda83nPyJNtMR
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github.com/go-enry/go-enry/v2 v2.8.2/go.mod h1:GVzIiAytiS5uT/QiuakK7TF1u4xDab87Y8V5EJRpsIQ=
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github.com/go-enry/go-enry/v2 v2.8.2/go.mod h1:GVzIiAytiS5uT/QiuakK7TF1u4xDab87Y8V5EJRpsIQ=
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github.com/go-enry/go-oniguruma v1.2.1 h1:k8aAMuJfMrqm/56SG2lV9Cfti6tC4x8673aHCcBk+eo=
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github.com/go-enry/go-oniguruma v1.2.1 h1:k8aAMuJfMrqm/56SG2lV9Cfti6tC4x8673aHCcBk+eo=
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github.com/go-enry/go-oniguruma v1.2.1/go.mod h1:bWDhYP+S6xZQgiRL7wlTScFYBe023B6ilRZbCAD5Hf4=
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github.com/go-enry/go-oniguruma v1.2.1/go.mod h1:bWDhYP+S6xZQgiRL7wlTScFYBe023B6ilRZbCAD5Hf4=
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github.com/go-fed/httpsig v1.1.0 h1:9M+hb0jkEICD8/cAiNqEB66R87tTINszBRTjwjQzWcI=
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github.com/go-fed/httpsig v1.1.0/go.mod h1:RCMrTZvN1bJYtofsG4rd5NaO5obxQ5xBkdiS7xsT7bM=
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github.com/go-git/gcfg v1.5.0 h1:Q5ViNfGF8zFgyJWPqYwA7qGFoMTEiBmdlkcfRmpIMa4=
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github.com/go-git/gcfg v1.5.0 h1:Q5ViNfGF8zFgyJWPqYwA7qGFoMTEiBmdlkcfRmpIMa4=
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github.com/go-git/gcfg v1.5.0/go.mod h1:5m20vg6GwYabIxaOonVkTdrILxQMpEShl1xiMF4ua+E=
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github.com/go-git/gcfg v1.5.0/go.mod h1:5m20vg6GwYabIxaOonVkTdrILxQMpEShl1xiMF4ua+E=
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github.com/go-git/go-billy/v5 v5.2.0/go.mod h1:pmpqyWchKfYfrkb/UVH4otLvyi/5gJlGI4Hb3ZqZ3W0=
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github.com/go-git/go-billy/v5 v5.2.0/go.mod h1:pmpqyWchKfYfrkb/UVH4otLvyi/5gJlGI4Hb3ZqZ3W0=
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137
integrations/api_httpsig_test.go
Normal file
137
integrations/api_httpsig_test.go
Normal file
@ -0,0 +1,137 @@
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// Copyright 2022 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package integrations
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import (
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"encoding/base64"
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"fmt"
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"net/http"
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"net/url"
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"testing"
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api "code.gitea.io/gitea/modules/structs"
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"github.com/go-fed/httpsig"
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"golang.org/x/crypto/ssh"
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)
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const (
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httpsigPrivateKey = `-----BEGIN OPENSSH PRIVATE KEY-----
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b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAABFwAAAAdzc2gtcn
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NhAAAAAwEAAQAAAQEAqjmQeb5Eb1xV7qbNf9ErQ0XRvKZWzUsLFhJzZz+Ab7q8WtPs91vQ
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fBiypw4i8OTG6WzDcgZaV8Ndxn7iHnIstdA1k89MVG4stydymmwmk9+mrCMNsu5OmdIy9F
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AZ61RDcKuf5VG2WKkmeK0VO+OMJIYfE1C6czNeJ6UAmcIOmhGxvjMI83XUO9n0ftwTwayp
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+XU5prvKx/fTvlPjbraPNU4OzwPjVLqXBzpoXYhBquPaZYFRVyvfFZLObYsmy+BrsxcloM
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l+9w4P0ATJ9njB7dRDL+RrN4uhhYSihqOK4w4vaiOj1+aA0eC0zXunEfLXfGIVQ/FhWcCy
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5f72mMiKnQAAA9AxSmzFMUpsxQAAAAdzc2gtcnNhAAABAQCqOZB5vkRvXFXups1/0StDRd
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G8plbNSwsWEnNnP4Bvurxa0+z3W9B8GLKnDiLw5MbpbMNyBlpXw13GfuIeciy10DWTz0xU
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biy3J3KabCaT36asIw2y7k6Z0jL0UBnrVENwq5/lUbZYqSZ4rRU744wkhh8TULpzM14npQ
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CZwg6aEbG+MwjzddQ72fR+3BPBrKn5dTmmu8rH99O+U+Nuto81Tg7PA+NUupcHOmhdiEGq
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49plgVFXK98Vks5tiybL4GuzFyWgyX73Dg/QBMn2eMHt1EMv5Gs3i6GFhKKGo4rjDi9qI6
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PX5oDR4LTNe6cR8td8YhVD8WFZwLLl/vaYyIqdAAAAAwEAAQAAAQBz+nyBNi2SYir6SxPA
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flcnoq5gBkUl4ndPNosCUbXEakpi5/mQHzJRGtK+F1efIYCVEdGoIsPy/90onNKbQ9dKmO
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2oI5kx/U7iCzJ+HCm8nqkEp21x+AP9scWdx+Wg/OxmG8j5iU7f4X+gwOyyvTqCuA78Lgia
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7Oi9wiJCoIEqXr6dRYGJzfASwKA2dj995HzATexleLSD5fQCmZTF+Vh5OQ5WmE+c53JdZS
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T3Plie/P/smgSWBtf1fWr6JL2+EBsqQsIK1Jo7r/7rxsz+ILoVfnneNQY4QSa9W+t6ZAI+
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caSA0Guv7vC92ewjlMVlwKa3XaEjMJb5sFlg1r6TYMwBAAAAgQDQwXvgSXNaSHIeH53/Ab
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t4BlNibtxK8vY8CZFloAKXkjrivKSlDAmQCM0twXOweX2ScPjE+XlSMV4AUsv/J6XHGHci
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W3+PGIBfc/fQRBpiyhzkoXYDVrlkSKHffCnAqTUQlYkhr0s7NkZpEeqPE0doAUs4dK3Iqb
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zdtz8e5BPXZwAAAIEA4U/JskIu5Oge8Is2OLOhlol0EJGw5JGodpFyhbMC+QYK9nYqy7wI
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a6mZ2EfOjjwIZD/+wYyulw6cRve4zXwgzUEXLIKp8/H3sYvJK2UMeP7y68sQFqGxbm6Rnh
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tyBBSaJQnOXVOFf9gqZGCyO/J0Illg3AXTuC8KS/cxwasC38EAAACBAMFo/6XQoR6E3ynj
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VBaz2SilWqQBixUyvcNz8LY73IIDCecoccRMFSEKhWtvlJijxvFbF9M8g9oKAVPuub4V5r
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CGmwVPEd5yt4C2iyV0PhLp1PA2/i42FpCSnHaz/EXSz6ncTZcOMMuDqUbgUUpQg4VSUDl9
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fhTNAzWwZoQ91aHdAAAAFHUwMDIyMTQ2QGljdHMtcC1ueC03AQIDBAUG
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-----END OPENSSH PRIVATE KEY-----`
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httpsigCertificate = `ssh-rsa-cert-v01@openssh.com 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`
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)
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func TestHTTPSigPubKey(t *testing.T) {
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// Add our public key to user1
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defer prepareTestEnv(t)()
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session := loginUser(t, "user1")
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token := url.QueryEscape(getTokenForLoggedInUser(t, session))
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keysURL := fmt.Sprintf("/api/v1/user/keys?token=%s", token)
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keyType := "ssh-rsa"
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keyContent := "AAAAB3NzaC1yc2EAAAADAQABAAABAQCqOZB5vkRvXFXups1/0StDRdG8plbNSwsWEnNnP4Bvurxa0+z3W9B8GLKnDiLw5MbpbMNyBlpXw13GfuIeciy10DWTz0xUbiy3J3KabCaT36asIw2y7k6Z0jL0UBnrVENwq5/lUbZYqSZ4rRU744wkhh8TULpzM14npQCZwg6aEbG+MwjzddQ72fR+3BPBrKn5dTmmu8rH99O+U+Nuto81Tg7PA+NUupcHOmhdiEGq49plgVFXK98Vks5tiybL4GuzFyWgyX73Dg/QBMn2eMHt1EMv5Gs3i6GFhKKGo4rjDi9qI6PX5oDR4LTNe6cR8td8YhVD8WFZwLLl/vaYyIqd"
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rawKeyBody := api.CreateKeyOption{
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Title: "test-key",
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Key: keyType + " " + keyContent,
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}
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req := NewRequestWithJSON(t, "POST", keysURL, rawKeyBody)
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session.MakeRequest(t, req, http.StatusCreated)
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// parse our private key and create the httpsig request
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sshSigner, _ := ssh.ParsePrivateKey([]byte(httpsigPrivateKey))
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keyID := ssh.FingerprintSHA256(sshSigner.PublicKey())
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// create the request
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req = NewRequest(t, "GET", "/api/v1/admin/users")
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signer, _, err := httpsig.NewSSHSigner(sshSigner, httpsig.DigestSha512, []string{httpsig.RequestTarget, "(created)", "(expires)"}, httpsig.Signature, 10)
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if err != nil {
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t.Fatal(err)
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}
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// sign the request
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err = signer.SignRequest(keyID, req, nil)
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if err != nil {
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t.Fatal(err)
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}
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// make the request
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MakeRequest(t, req, http.StatusOK)
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}
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func TestHTTPSigCert(t *testing.T) {
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// Add our public key to user1
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defer prepareTestEnv(t)()
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session := loginUser(t, "user1")
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csrf := GetCSRF(t, session, "/user/settings/keys")
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req := NewRequestWithValues(t, "POST", "/user/settings/keys", map[string]string{
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"_csrf": csrf,
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"content": "user1",
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"title": "principal",
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"type": "principal",
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})
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session.MakeRequest(t, req, http.StatusSeeOther)
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pkcert, _, _, _, err := ssh.ParseAuthorizedKey([]byte(httpsigCertificate))
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if err != nil {
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t.Fatal(err)
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}
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// parse our private key and create the httpsig request
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sshSigner, _ := ssh.ParsePrivateKey([]byte(httpsigPrivateKey))
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keyID := "gitea"
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|
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// create our certificate signer using the ssh signer and our certificate
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certSigner, err := ssh.NewCertSigner(pkcert.(*ssh.Certificate), sshSigner)
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if err != nil {
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t.Fatal(err)
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|
}
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|
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// create the request
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req = NewRequest(t, "GET", "/api/v1/admin/users")
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|
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// add our cert to the request
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certString := base64.RawStdEncoding.EncodeToString(pkcert.(*ssh.Certificate).Marshal())
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req.Header.Add("x-ssh-certificate", certString)
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|
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signer, _, err := httpsig.NewSSHSigner(certSigner, httpsig.DigestSha512, []string{httpsig.RequestTarget, "(created)", "(expires)", "x-ssh-certificate"}, httpsig.Signature, 10)
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|
if err != nil {
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|
t.Fatal(err)
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|
}
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|
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// sign the request
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err = signer.SignRequest(keyID, req, nil)
|
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|
if err != nil {
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|
t.Fatal(err)
|
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|
}
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// make the request
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|
MakeRequest(t, req, http.StatusOK)
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|
}
|
@ -49,6 +49,7 @@ OFFLINE_MODE = false
|
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LFS_JWT_SECRET = Tv_MjmZuHqpIY6GFl12ebgkRAMt4RlWt0v4EHKSXO0w
|
LFS_JWT_SECRET = Tv_MjmZuHqpIY6GFl12ebgkRAMt4RlWt0v4EHKSXO0w
|
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APP_DATA_PATH = integrations/gitea-integration-mssql/data
|
APP_DATA_PATH = integrations/gitea-integration-mssql/data
|
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BUILTIN_SSH_SERVER_USER = git
|
BUILTIN_SSH_SERVER_USER = git
|
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|
SSH_TRUSTED_USER_CA_KEYS = ssh-rsa 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|
|
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[attachment]
|
[attachment]
|
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PATH = integrations/gitea-integration-mssql/data/attachments
|
PATH = integrations/gitea-integration-mssql/data/attachments
|
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|
@ -51,6 +51,7 @@ OFFLINE_MODE = false
|
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|
|
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LFS_START_SERVER = true
|
LFS_START_SERVER = true
|
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LFS_JWT_SECRET = Tv_MjmZuHqpIY6GFl12ebgkRAMt4RlWt0v4EHKSXO0w
|
LFS_JWT_SECRET = Tv_MjmZuHqpIY6GFl12ebgkRAMt4RlWt0v4EHKSXO0w
|
||||||
|
SSH_TRUSTED_USER_CA_KEYS = ssh-rsa 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
|
||||||
|
|
||||||
[lfs]
|
[lfs]
|
||||||
MINIO_BASE_PATH = lfs/
|
MINIO_BASE_PATH = lfs/
|
||||||
|
@ -49,6 +49,7 @@ OFFLINE_MODE = false
|
|||||||
LFS_JWT_SECRET = Tv_MjmZuHqpIY6GFl12ebgkRAMt4RlWt0v4EHKSXO0w
|
LFS_JWT_SECRET = Tv_MjmZuHqpIY6GFl12ebgkRAMt4RlWt0v4EHKSXO0w
|
||||||
APP_DATA_PATH = integrations/gitea-integration-mysql8/data
|
APP_DATA_PATH = integrations/gitea-integration-mysql8/data
|
||||||
BUILTIN_SSH_SERVER_USER = git
|
BUILTIN_SSH_SERVER_USER = git
|
||||||
|
SSH_TRUSTED_USER_CA_KEYS = ssh-rsa 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
|
||||||
|
|
||||||
[attachment]
|
[attachment]
|
||||||
PATH = integrations/gitea-integration-mysql8/data/attachments
|
PATH = integrations/gitea-integration-mysql8/data/attachments
|
||||||
|
@ -50,6 +50,7 @@ OFFLINE_MODE = false
|
|||||||
LFS_JWT_SECRET = Tv_MjmZuHqpIY6GFl12ebgkRAMt4RlWt0v4EHKSXO0w
|
LFS_JWT_SECRET = Tv_MjmZuHqpIY6GFl12ebgkRAMt4RlWt0v4EHKSXO0w
|
||||||
APP_DATA_PATH = integrations/gitea-integration-pgsql/data
|
APP_DATA_PATH = integrations/gitea-integration-pgsql/data
|
||||||
BUILTIN_SSH_SERVER_USER = git
|
BUILTIN_SSH_SERVER_USER = git
|
||||||
|
SSH_TRUSTED_USER_CA_KEYS = ssh-rsa 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
|
||||||
|
|
||||||
[attachment]
|
[attachment]
|
||||||
PATH = integrations/gitea-integration-pgsql/data/attachments
|
PATH = integrations/gitea-integration-pgsql/data/attachments
|
||||||
|
@ -46,6 +46,7 @@ LFS_JWT_SECRET = Tv_MjmZuHqpIY6GFl12ebgkRAMt4RlWt0v4EHKSXO0w
|
|||||||
APP_DATA_PATH = integrations/gitea-integration-sqlite/data
|
APP_DATA_PATH = integrations/gitea-integration-sqlite/data
|
||||||
ENABLE_GZIP = true
|
ENABLE_GZIP = true
|
||||||
BUILTIN_SSH_SERVER_USER = git
|
BUILTIN_SSH_SERVER_USER = git
|
||||||
|
SSH_TRUSTED_USER_CA_KEYS = ssh-rsa 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
|
||||||
|
|
||||||
[attachment]
|
[attachment]
|
||||||
PATH = integrations/gitea-integration-sqlite/data/attachments
|
PATH = integrations/gitea-integration-sqlite/data/attachments
|
||||||
|
@ -188,8 +188,9 @@ func publicKeyHandler(ctx ssh.Context, key ssh.PublicKey) bool {
|
|||||||
|
|
||||||
c := &gossh.CertChecker{
|
c := &gossh.CertChecker{
|
||||||
IsUserAuthority: func(auth gossh.PublicKey) bool {
|
IsUserAuthority: func(auth gossh.PublicKey) bool {
|
||||||
|
marshaled := auth.Marshal()
|
||||||
for _, k := range setting.SSH.TrustedUserCAKeysParsed {
|
for _, k := range setting.SSH.TrustedUserCAKeysParsed {
|
||||||
if bytes.Equal(auth.Marshal(), k.Marshal()) {
|
if bytes.Equal(marshaled, k.Marshal()) {
|
||||||
return true
|
return true
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
@ -592,6 +592,7 @@ func bind(obj interface{}) http.HandlerFunc {
|
|||||||
func buildAuthGroup() *auth.Group {
|
func buildAuthGroup() *auth.Group {
|
||||||
group := auth.NewGroup(
|
group := auth.NewGroup(
|
||||||
&auth.OAuth2{},
|
&auth.OAuth2{},
|
||||||
|
&auth.HTTPSign{},
|
||||||
&auth.Basic{}, // FIXME: this should be removed once we don't allow basic auth in API
|
&auth.Basic{}, // FIXME: this should be removed once we don't allow basic auth in API
|
||||||
)
|
)
|
||||||
if setting.Service.EnableReverseProxyAuth {
|
if setting.Service.EnableReverseProxyAuth {
|
||||||
|
217
services/auth/httpsign.go
Normal file
217
services/auth/httpsign.go
Normal file
@ -0,0 +1,217 @@
|
|||||||
|
// Copyright 2021 The Gitea Authors. All rights reserved.
|
||||||
|
// Use of this source code is governed by a MIT-style
|
||||||
|
// license that can be found in the LICENSE file.
|
||||||
|
|
||||||
|
package auth
|
||||||
|
|
||||||
|
import (
|
||||||
|
"bytes"
|
||||||
|
"encoding/base64"
|
||||||
|
"errors"
|
||||||
|
"fmt"
|
||||||
|
"net/http"
|
||||||
|
"strings"
|
||||||
|
|
||||||
|
asymkey_model "code.gitea.io/gitea/models/asymkey"
|
||||||
|
user_model "code.gitea.io/gitea/models/user"
|
||||||
|
"code.gitea.io/gitea/modules/log"
|
||||||
|
"code.gitea.io/gitea/modules/setting"
|
||||||
|
|
||||||
|
"github.com/go-fed/httpsig"
|
||||||
|
"golang.org/x/crypto/ssh"
|
||||||
|
)
|
||||||
|
|
||||||
|
// Ensure the struct implements the interface.
|
||||||
|
var (
|
||||||
|
_ Method = &HTTPSign{}
|
||||||
|
_ Named = &HTTPSign{}
|
||||||
|
)
|
||||||
|
|
||||||
|
// HTTPSign implements the Auth interface and authenticates requests (API requests
|
||||||
|
// only) by looking for http signature data in the "Signature" header.
|
||||||
|
// more information can be found on https://github.com/go-fed/httpsig
|
||||||
|
type HTTPSign struct{}
|
||||||
|
|
||||||
|
// Name represents the name of auth method
|
||||||
|
func (h *HTTPSign) Name() string {
|
||||||
|
return "httpsign"
|
||||||
|
}
|
||||||
|
|
||||||
|
// Verify extracts and validates HTTPsign from the Signature header of the request and returns
|
||||||
|
// the corresponding user object on successful validation.
|
||||||
|
// Returns nil if header is empty or validation fails.
|
||||||
|
func (h *HTTPSign) Verify(req *http.Request, w http.ResponseWriter, store DataStore, sess SessionStore) *user_model.User {
|
||||||
|
sigHead := req.Header.Get("Signature")
|
||||||
|
if len(sigHead) == 0 {
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
var (
|
||||||
|
publicKey *asymkey_model.PublicKey
|
||||||
|
err error
|
||||||
|
)
|
||||||
|
|
||||||
|
if len(req.Header.Get("X-Ssh-Certificate")) != 0 {
|
||||||
|
// Handle Signature signed by SSH certificates
|
||||||
|
if len(setting.SSH.TrustedUserCAKeys) == 0 {
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
publicKey, err = VerifyCert(req)
|
||||||
|
if err != nil {
|
||||||
|
log.Debug("VerifyCert on request from %s: failed: %v", req.RemoteAddr, err)
|
||||||
|
log.Warn("Failed authentication attempt from %s", req.RemoteAddr)
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
// Handle Signature signed by Public Key
|
||||||
|
publicKey, err = VerifyPubKey(req)
|
||||||
|
if err != nil {
|
||||||
|
log.Debug("VerifyPubKey on request from %s: failed: %v", req.RemoteAddr, err)
|
||||||
|
log.Warn("Failed authentication attempt from %s", req.RemoteAddr)
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
u, err := user_model.GetUserByID(publicKey.OwnerID)
|
||||||
|
if err != nil {
|
||||||
|
log.Error("GetUserByID: %v", err)
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
store.GetData()["IsApiToken"] = true
|
||||||
|
|
||||||
|
log.Trace("HTTP Sign: Logged in user %-v", u)
|
||||||
|
|
||||||
|
return u
|
||||||
|
}
|
||||||
|
|
||||||
|
func VerifyPubKey(r *http.Request) (*asymkey_model.PublicKey, error) {
|
||||||
|
verifier, err := httpsig.NewVerifier(r)
|
||||||
|
if err != nil {
|
||||||
|
return nil, fmt.Errorf("httpsig.NewVerifier failed: %s", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
keyID := verifier.KeyId()
|
||||||
|
|
||||||
|
publicKeys, err := asymkey_model.SearchPublicKey(0, keyID)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
if len(publicKeys) == 0 {
|
||||||
|
return nil, fmt.Errorf("no public key found for keyid %s", keyID)
|
||||||
|
}
|
||||||
|
|
||||||
|
sshPublicKey, _, _, _, err := ssh.ParseAuthorizedKey([]byte(publicKeys[0].Content))
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
if err := doVerify(verifier, []ssh.PublicKey{sshPublicKey}); err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
return publicKeys[0], nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// VerifyCert verifies the validity of the ssh certificate and returns the publickey of the signer
|
||||||
|
// We verify that the certificate is signed with the correct CA
|
||||||
|
// We verify that the http request is signed with the private key (of the public key mentioned in the certificate)
|
||||||
|
func VerifyCert(r *http.Request) (*asymkey_model.PublicKey, error) {
|
||||||
|
// Get our certificate from the header
|
||||||
|
bcert, err := base64.RawStdEncoding.DecodeString(r.Header.Get("x-ssh-certificate"))
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
pk, err := ssh.ParsePublicKey(bcert)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check if it's really a ssh certificate
|
||||||
|
cert, ok := pk.(*ssh.Certificate)
|
||||||
|
if !ok {
|
||||||
|
return nil, fmt.Errorf("no certificate found")
|
||||||
|
}
|
||||||
|
|
||||||
|
c := &ssh.CertChecker{
|
||||||
|
IsUserAuthority: func(auth ssh.PublicKey) bool {
|
||||||
|
marshaled := auth.Marshal()
|
||||||
|
|
||||||
|
for _, k := range setting.SSH.TrustedUserCAKeysParsed {
|
||||||
|
if bytes.Equal(marshaled, k.Marshal()) {
|
||||||
|
return true
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return false
|
||||||
|
},
|
||||||
|
}
|
||||||
|
|
||||||
|
// check the CA of the cert
|
||||||
|
if !c.IsUserAuthority(cert.SignatureKey) {
|
||||||
|
return nil, fmt.Errorf("CA check failed")
|
||||||
|
}
|
||||||
|
|
||||||
|
// Create a verifier
|
||||||
|
verifier, err := httpsig.NewVerifier(r)
|
||||||
|
if err != nil {
|
||||||
|
return nil, fmt.Errorf("httpsig.NewVerifier failed: %s", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// now verify that this request was signed with the private key that matches the certificate public key
|
||||||
|
if err := doVerify(verifier, []ssh.PublicKey{cert.Key}); err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
// Now for each of the certificate valid principals
|
||||||
|
for _, principal := range cert.ValidPrincipals {
|
||||||
|
// Look in the db for the public key
|
||||||
|
publicKey, err := asymkey_model.SearchPublicKeyByContentExact(r.Context(), principal)
|
||||||
|
if asymkey_model.IsErrKeyNotExist(err) {
|
||||||
|
// No public key matches this principal - try the next principal
|
||||||
|
continue
|
||||||
|
} else if err != nil {
|
||||||
|
// this error will be a db error therefore we can't solve this and we should abort
|
||||||
|
log.Error("SearchPublicKeyByContentExact: %v", err)
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
// Validate the cert for this principal
|
||||||
|
if err := c.CheckCert(principal, cert); err != nil {
|
||||||
|
// however, because principal is a member of ValidPrincipals - if this fails then the certificate itself is invalid
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
// OK we have a public key for a principal matching a valid certificate whose key has signed this request.
|
||||||
|
return publicKey, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// No public key matching a principal in the certificate is registered in gitea
|
||||||
|
return nil, fmt.Errorf("no valid principal found")
|
||||||
|
}
|
||||||
|
|
||||||
|
// doVerify iterates across the provided public keys attempting the verify the current request against each key in turn
|
||||||
|
func doVerify(verifier httpsig.Verifier, sshPublicKeys []ssh.PublicKey) error {
|
||||||
|
for _, publicKey := range sshPublicKeys {
|
||||||
|
cryptoPubkey := publicKey.(ssh.CryptoPublicKey).CryptoPublicKey()
|
||||||
|
|
||||||
|
var algos []httpsig.Algorithm
|
||||||
|
|
||||||
|
switch {
|
||||||
|
case strings.HasPrefix(publicKey.Type(), "ssh-ed25519"):
|
||||||
|
algos = []httpsig.Algorithm{httpsig.ED25519}
|
||||||
|
case strings.HasPrefix(publicKey.Type(), "ssh-rsa"):
|
||||||
|
algos = []httpsig.Algorithm{httpsig.RSA_SHA1, httpsig.RSA_SHA256, httpsig.RSA_SHA512}
|
||||||
|
}
|
||||||
|
for _, algo := range algos {
|
||||||
|
if err := verifier.Verify(cryptoPubkey, algo); err == nil {
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return errors.New("verification failed")
|
||||||
|
}
|
Loading…
Reference in New Issue
Block a user