Include gl_project_path in API /internal/allowed response

This will enable us to track the human-readable project path with SSH
access in gitlab-shell. Currently the Gitaly logs will only show the
hashed storage and gl_repository path (e.g. project-1234).

changelogs/unreleased/sh-include-project-path-for-internal-api.yml

+---
+title: Include gl_project_path in API /internal/allowed response
+merge_request: 25314
+author:
+type: other

lib/api/helpers/internal_helpers.rb

@@ -81,6 +81,14 @@ module API
         Gitlab::GlRepository.gl_repository(project, wiki?)
       end
 
+      def gl_project_path
+        if wiki?
+          project.wiki.full_path
+        else
+          project.full_path
+        end
+      end
+
       # Return the repository depending on whether we want the wiki or the
       # regular repository
       def repository

lib/api/internal.rb

@@ -77,6 +77,7 @@ module API
         when ::Gitlab::GitAccessResult::Success
           payload = {
             gl_repository: gl_repository,
+            gl_project_path: gl_project_path,
             gl_id: Gitlab::GlId.gl_id(user),
             gl_username: user&.username,
             git_config_options: [],

spec/requests/api/internal_spec.rb

@@ -325,6 +325,7 @@ describe API::Internal do
           expect(response).to have_gitlab_http_status(200)
           expect(json_response["status"]).to be_truthy
           expect(json_response["repository_path"]).to eq('/')
+          expect(json_response["gl_project_path"]).to eq(project.wiki.full_path)
           expect(json_response["gl_repository"]).to eq("wiki-#{project.id}")
           expect(user.reload.last_activity_on).to be_nil
         end
@@ -337,6 +338,7 @@ describe API::Internal do
           expect(response).to have_gitlab_http_status(200)
           expect(json_response["status"]).to be_truthy
           expect(json_response["repository_path"]).to eq('/')
+          expect(json_response["gl_project_path"]).to eq(project.wiki.full_path)
           expect(json_response["gl_repository"]).to eq("wiki-#{project.id}")
           expect(user.reload.last_activity_on).to eql(Date.today)
         end
@@ -350,6 +352,7 @@ describe API::Internal do
           expect(json_response["status"]).to be_truthy
           expect(json_response["repository_path"]).to eq('/')
           expect(json_response["gl_repository"]).to eq("project-#{project.id}")
+          expect(json_response["gl_project_path"]).to eq(project.full_path)
           expect(json_response["gitaly"]).not_to be_nil
           expect(json_response["gitaly"]["repository"]).not_to be_nil
           expect(json_response["gitaly"]["repository"]["storage_name"]).to eq(project.repository.gitaly_repository.storage_name)
@@ -369,6 +372,7 @@ describe API::Internal do
             expect(json_response["status"]).to be_truthy
             expect(json_response["repository_path"]).to eq('/')
             expect(json_response["gl_repository"]).to eq("project-#{project.id}")
+            expect(json_response["gl_project_path"]).to eq(project.full_path)
             expect(json_response["gitaly"]).not_to be_nil
             expect(json_response["gitaly"]["repository"]).not_to be_nil
             expect(json_response["gitaly"]["repository"]["storage_name"]).to eq(project.repository.gitaly_repository.storage_name)