Make gitea serv use api/internal (#4886)

* Start to move to internal/private

* Add GetPublicKeyByID

* Add HasDeployKey

* Add private.UpdateDeployKeyUpdated

* Add private.GetUserByKeyID

* Add private.AccessLevel

* Add private.CheckUnitUser

* Fix mistakes I made

* Some cleaning + moving code to separate files

* Fix error handling

* Remove useless error handling for setup

* lint: fix comment on exported func

* fix copyright header

* Fix order of args

3 files changed, 173 insertions, 12 deletions

diff --git a/modules/private/branch.go b/modules/private/branch.go
index fed66d29ff..cadbf6c88c 100644
--- a/modules/private/branch.go
+++ b/modules/private/branch.go
@@ -33,7 +33,7 @@ func GetProtectedBranchBy(repoID int64, branchName string) (*models.ProtectedBra
 
 	// All 2XX status codes are accepted and others will return an error
 	if resp.StatusCode/100 != 2 {
-		return nil, fmt.Errorf("Failed to update public key: %s", decodeJSONError(resp).Err)
+		return nil, fmt.Errorf("Failed to get protected branch: %s", decodeJSONError(resp).Err)
 	}
 
 	return &branch, nil
diff --git a/modules/private/internal.go b/modules/private/internal.go
index ac2fe56b87..f4ac1c515a 100644
--- a/modules/private/internal.go
+++ b/modules/private/internal.go
@@ -11,6 +11,7 @@ import (
 	"net"
 	"net/http"
 
+	"code.gitea.io/gitea/models"
 	"code.gitea.io/gitea/modules/httplib"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
@@ -49,22 +50,66 @@ func newInternalRequest(url, method string) *httplib.Request {
 	return req
 }
 
-// UpdatePublicKeyUpdated update publick key updates
-func UpdatePublicKeyUpdated(keyID int64) error {
-	// Ask for running deliver hook and test pull request tasks.
-	reqURL := setting.LocalURL + fmt.Sprintf("api/internal/ssh/%d/update", keyID)
-	log.GitLogger.Trace("UpdatePublicKeyUpdated: %s", reqURL)
+// CheckUnitUser check whether user could visit the unit of this repository
+func CheckUnitUser(userID, repoID int64, isAdmin bool, unitType models.UnitType) (bool, error) {
+	reqURL := setting.LocalURL + fmt.Sprintf("api/internal/repositories/%d/user/%d/checkunituser?isAdmin=%t&unitType=%d", repoID, userID, isAdmin, unitType)
+	log.GitLogger.Trace("AccessLevel: %s", reqURL)
 
-	resp, err := newInternalRequest(reqURL, "POST").Response()
+	resp, err := newInternalRequest(reqURL, "GET").Response()
 	if err != nil {
-		return err
+		return false, err
 	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode == 200 {
+		return true, nil
+	}
+	return false, nil
+}
+
+// AccessLevel returns the Access a user has to a repository. Will return NoneAccess if the
+// user does not have access.
+func AccessLevel(userID, repoID int64) (*models.AccessMode, error) {
+	reqURL := setting.LocalURL + fmt.Sprintf("api/internal/repositories/%d/user/%d/accesslevel", repoID, userID)
+	log.GitLogger.Trace("AccessLevel: %s", reqURL)
 
+	resp, err := newInternalRequest(reqURL, "GET").Response()
+	if err != nil {
+		return nil, err
+	}
 	defer resp.Body.Close()
 
-	// All 2XX status codes are accepted and others will return an error
-	if resp.StatusCode/100 != 2 {
-		return fmt.Errorf("Failed to update public key: %s", decodeJSONError(resp).Err)
+	if resp.StatusCode != 200 {
+		return nil, fmt.Errorf("Failed to get user access level: %s", decodeJSONError(resp).Err)
+	}
+
+	var a models.AccessMode
+	if err := json.NewDecoder(resp.Body).Decode(&a); err != nil {
+		return nil, err
 	}
-	return nil
+
+	return &a, nil
+}
+
+// GetRepositoryByOwnerAndName returns the repository by given ownername and reponame.
+func GetRepositoryByOwnerAndName(ownerName, repoName string) (*models.Repository, error) {
+	reqURL := setting.LocalURL + fmt.Sprintf("api/internal/repo/%s/%s", ownerName, repoName)
+	log.GitLogger.Trace("GetRepositoryByOwnerAndName: %s", reqURL)
+
+	resp, err := newInternalRequest(reqURL, "GET").Response()
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return nil, fmt.Errorf("Failed to get repository: %s", decodeJSONError(resp).Err)
+	}
+
+	var repo models.Repository
+	if err := json.NewDecoder(resp.Body).Decode(&repo); err != nil {
+		return nil, err
+	}
+
+	return &repo, nil
 }
diff --git a/modules/private/key.go b/modules/private/key.go
new file mode 100644
index 0000000000..86d0a730d1
--- /dev/null
+++ b/modules/private/key.go
@@ -0,0 +1,116 @@
+// Copyright 2018 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 private
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// UpdateDeployKeyUpdated update deploy key updates
+func UpdateDeployKeyUpdated(keyID int64, repoID int64) error {
+	reqURL := setting.LocalURL + fmt.Sprintf("api/internal/repositories/%d/keys/%d/update", repoID, keyID)
+	log.GitLogger.Trace("UpdateDeployKeyUpdated: %s", reqURL)
+
+	resp, err := newInternalRequest(reqURL, "POST").Response()
+	if err != nil {
+		return err
+	}
+
+	defer resp.Body.Close()
+
+	// All 2XX status codes are accepted and others will return an error
+	if resp.StatusCode/100 != 2 {
+		return fmt.Errorf("Failed to update deploy key: %s", decodeJSONError(resp).Err)
+	}
+	return nil
+}
+
+// HasDeployKey check if repo has deploy key
+func HasDeployKey(keyID, repoID int64) (bool, error) {
+	reqURL := setting.LocalURL + fmt.Sprintf("api/internal/repositories/%d/has-keys/%d", repoID, keyID)
+	log.GitLogger.Trace("HasDeployKey: %s", reqURL)
+
+	resp, err := newInternalRequest(reqURL, "GET").Response()
+	if err != nil {
+		return false, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode == 200 {
+		return true, nil
+	}
+	return false, nil
+}
+
+// GetPublicKeyByID  get public ssh key by his ID
+func GetPublicKeyByID(keyID int64) (*models.PublicKey, error) {
+	reqURL := setting.LocalURL + fmt.Sprintf("api/internal/ssh/%d", keyID)
+	log.GitLogger.Trace("GetPublicKeyByID: %s", reqURL)
+
+	resp, err := newInternalRequest(reqURL, "GET").Response()
+	if err != nil {
+		return nil, err
+	}
+
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return nil, fmt.Errorf("Failed to get repository: %s", decodeJSONError(resp).Err)
+	}
+
+	var pKey models.PublicKey
+	if err := json.NewDecoder(resp.Body).Decode(&pKey); err != nil {
+		return nil, err
+	}
+	return &pKey, nil
+}
+
+// GetUserByKeyID get user attached to key
+func GetUserByKeyID(keyID int64) (*models.User, error) {
+	reqURL := setting.LocalURL + fmt.Sprintf("api/internal/ssh/%d/user", keyID)
+	log.GitLogger.Trace("GetUserByKeyID: %s", reqURL)
+
+	resp, err := newInternalRequest(reqURL, "GET").Response()
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return nil, fmt.Errorf("Failed to get user: %s", decodeJSONError(resp).Err)
+	}
+
+	var user models.User
+	if err := json.NewDecoder(resp.Body).Decode(&user); err != nil {
+		return nil, err
+	}
+
+	return &user, nil
+}
+
+// UpdatePublicKeyUpdated update public key updates
+func UpdatePublicKeyUpdated(keyID int64) error {
+	// Ask for running deliver hook and test pull request tasks.
+	reqURL := setting.LocalURL + fmt.Sprintf("api/internal/ssh/%d/update", keyID)
+	log.GitLogger.Trace("UpdatePublicKeyUpdated: %s", reqURL)
+
+	resp, err := newInternalRequest(reqURL, "POST").Response()
+	if err != nil {
+		return err
+	}
+
+	defer resp.Body.Close()
+
+	// All 2XX status codes are accepted and others will return an error
+	if resp.StatusCode/100 != 2 {
+		return fmt.Errorf("Failed to update public key: %s", decodeJSONError(resp).Err)
+	}
+	return nil
+}