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lorax-composer: Return UnknownBlueprint errors when using deleted blueprints 

Reading a blueprint wasn't checking to see if it had been deleted so it
was returning the most recent commit before it had been deleted. This
allowed things like starting a compose with a blueprint that technically
doesn't exist.

One exception to this is the /changes/ route, it must be available so
that you can use the commit hash to undo a delete.

This also adds tests for the various operations.

Resolves: rhbz#1682113
(cherry picked from commit d32f477e0b)
This commit is contained in:
Brian C. Lane 2019-02-27 17:00:19 -08:00
parent 5c0f127b3c
commit 82aa9cdbc6
3 changed files with 143 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
src/pylorax/api/recipes.py
View File

@ -408,6 +408,9 @@ def read_recipe_commit(repo, branch, recipe_name, commit=None):
If no commit is passed the master:filename is returned, otherwise it will be
commit:filename
"""
if not repo_file_exists(repo, branch, recipe_filename(recipe_name)):
raise RecipeFileError("Unknown blueprint")
(_, recipe_toml) = read_commit(repo, branch, recipe_filename(recipe_name), commit)
return recipe_from_toml(recipe_toml)
@ -631,6 +634,9 @@ def tag_recipe_commit(repo, branch, recipe_name):
Uses tag_file_commit()
"""
if not repo_file_exists(repo, branch, recipe_filename(recipe_name)):
raise RecipeFileError("Unknown blueprint")
return tag_file_commit(repo, branch, recipe_filename(recipe_name))
def tag_file_commit(repo, branch, filename):
@ -920,3 +926,21 @@ def recipe_diff(old_recipe, new_recipe):
diffs.extend(diff_items("Group", old_recipe["groups"], new_recipe["groups"]))
return diffs
def repo_file_exists(repo, branch, filename):
"""Return True if the filename exists on the branch
:param repo: Open repository
:type repo: Git.Repository
:param branch: Branch name
:type branch: str
:param filename: Filename to check
:type filename: str
:returns: True if the filename exists on the HEAD of the branch, False otherwise.
:rtype: bool
"""
commit = head_commit(repo, branch).get_id().to_string()
commit_id = Git.OId.new_from_string(commit)
commit_obj = repo.lookup(commit_id, Git.Commit)
tree = commit_obj.get_tree()
return tree.get_by_name(filename) is not None

45
src/pylorax/api/v0.py
View File

@ -1007,7 +1007,7 @@ from pylorax.api.queue import queue_status, build_status, uuid_delete, uuid_stat
from pylorax.api.queue import uuid_tar, uuid_image, uuid_cancel, uuid_log
from pylorax.api.recipes import RecipeError, list_branch_files, read_recipe_commit, recipe_filename, list_commits
from pylorax.api.recipes import recipe_from_dict, recipe_from_toml, commit_recipe, delete_recipe, revert_recipe
from pylorax.api.recipes import tag_recipe_commit, recipe_diff
from pylorax.api.recipes import tag_recipe_commit, recipe_diff, RecipeFileError
from pylorax.api.regexes import VALID_API_STRING
from pylorax.api.workspace import workspace_read, workspace_write, workspace_delete
@ -1028,12 +1028,21 @@ def take_limits(iterable, offset, limit):
return iterable[offset:][:limit]
def blueprint_exists(api, branch, blueprint_name):
"""Return True if the blueprint exists
:param api: flask object
:type api: Flask
:param branch: Branch name
:type branch: str
:param recipe_name: Recipe name to read
:type recipe_name: str
"""
try:
with api.config["GITLOCK"].lock:
read_recipe_commit(api.config["GITLOCK"].repo, branch, blueprint_name)
return True
except RecipeError:
except (RecipeError, RecipeFileError):
return False
def v0_api(api):
@ -1092,6 +1101,10 @@ def v0_api(api):
try:
with api.config["GITLOCK"].lock:
git_blueprint = read_recipe_commit(api.config["GITLOCK"].repo, branch, blueprint_name)
except RecipeFileError as e:
# Adding an exception would be redundant, skip it
git_blueprint = None
log.error("(v0_blueprints_info) %s", str(e))
except Exception as e:
git_blueprint = None
exceptions.append(str(e))
@ -1150,20 +1163,19 @@ def v0_api(api):
errors = []
for blueprint_name in [n.strip() for n in blueprint_names.split(",")]:
filename = recipe_filename(blueprint_name)
if not blueprint_exists(api, branch, blueprint_name):
errors.append({"id": UNKNOWN_BLUEPRINT, "msg": "Unknown blueprint name: %s" % blueprint_name})
continue
try:
with api.config["GITLOCK"].lock:
commits = list_commits(api.config["GITLOCK"].repo, branch, filename)
limited_commits = take_limits(list_commits(api.config["GITLOCK"].repo, branch, filename), offset, limit)
except Exception as e:
errors.append({"id": BLUEPRINTS_ERROR, "msg": "%s: %s" % (blueprint_name, str(e))})
log.error("(v0_blueprints_changes) %s", str(e))
else:
blueprints.append({"name":blueprint_name, "changes":limited_commits, "total":len(commits)})
if commits:
limited_commits = take_limits(commits, offset, limit)
blueprints.append({"name":blueprint_name, "changes":limited_commits, "total":len(commits)})
else:
# no commits means there is no blueprint in the branch
errors.append({"id": UNKNOWN_BLUEPRINT, "msg": "%s" % blueprint_name})
blueprints = sorted(blueprints, key=lambda r: r["name"].lower())
@ -1312,6 +1324,9 @@ def v0_api(api):
try:
with api.config["GITLOCK"].lock:
tag_recipe_commit(api.config["GITLOCK"].repo, branch, blueprint_name)
except RecipeFileError as e:
log.error("(v0_blueprints_tag) %s", str(e))
return jsonify(status=False, errors=[{"id": UNKNOWN_BLUEPRINT, "msg": str(e)}]), 400
except Exception as e:
log.error("(v0_blueprints_tag) %s", str(e))
return jsonify(status=False, errors=[{"id": BLUEPRINTS_ERROR, "msg": str(e)}]), 400
@ -1336,6 +1351,9 @@ def v0_api(api):
if VALID_API_STRING.match(branch) is None:
return jsonify(status=False, errors=[{"id": INVALID_CHARS, "msg": "Invalid characters in branch argument"}]), 400
if not blueprint_exists(api, branch, blueprint_name):
return jsonify(status=False, errors=[{"id": UNKNOWN_BLUEPRINT, "msg": "Unknown blueprint name: %s" % blueprint_name}])
try:
if from_commit == "NEWEST":
with api.config["GITLOCK"].lock:
@ -1402,6 +1420,9 @@ def v0_api(api):
try:
with api.config["GITLOCK"].lock:
blueprint = read_recipe_commit(api.config["GITLOCK"].repo, branch, blueprint_name)
except RecipeFileError as e:
# adding an error here would be redundant, skip it
log.error("(v0_blueprints_freeze) %s", str(e))
except Exception as e:
errors.append({"id": BLUEPRINTS_ERROR, "msg": "%s: %s" % (blueprint_name, str(e))})
log.error("(v0_blueprints_freeze) %s", str(e))
@ -1462,6 +1483,9 @@ def v0_api(api):
try:
with api.config["GITLOCK"].lock:
blueprint = read_recipe_commit(api.config["GITLOCK"].repo, branch, blueprint_name)
except RecipeFileError as e:
# adding an error here would be redundant, skip it
log.error("(v0_blueprints_depsolve) %s", str(e))
except Exception as e:
errors.append({"id": BLUEPRINTS_ERROR, "msg": "%s: %s" % (blueprint_name, str(e))})
log.error("(v0_blueprints_depsolve) %s", str(e))
@ -1794,6 +1818,9 @@ def v0_api(api):
if VALID_API_STRING.match(blueprint_name) is None:
errors.append({"id": INVALID_CHARS, "msg": "Invalid characters in API path"})
if not blueprint_exists(api, branch, blueprint_name):
errors.append({"id": UNKNOWN_BLUEPRINT, "msg": "Unknown blueprint name: %s" % blueprint_name})
if errors:
return jsonify(status=False, errors=errors), 400

88
tests/pylorax/test_server.py
View File

@ -221,13 +221,11 @@ class ServerTestCase(unittest.TestCase):
def test_03_blueprints_info_none(self):
"""Test the /api/v0/blueprints/info route with an unknown blueprint"""
info_dict_3 = {"changes":[],
"errors":[{"id": UNKNOWN_BLUEPRINT, "msg": "missing-blueprint: No commits for missing-blueprint.toml on the master branch."}],
"blueprints":[]
}
resp = self.server.get("/api/v0/blueprints/info/missing-blueprint")
data = json.loads(resp.data)
self.assertEqual(data, info_dict_3)
self.assertNotEqual(data, None)
self.assertTrue(len(data["errors"]) > 0)
self.assertEqual(data["errors"][0]["id"], "UnknownBlueprint")
def test_04_blueprints_changes(self):
"""Test the /api/v0/blueprints/changes route"""
@ -418,6 +416,21 @@ class ServerTestCase(unittest.TestCase):
# Make sure the workspace file is gone
self.assertEqual(os.path.exists(joinpaths(self.repo_dir, "git/workspace/master/example-glusterfs.toml")), False)
# This has to run after the above test
def test_10_blueprints_delete_2(self):
"""Test running a compose with the deleted blueprint"""
# Trying to start a compose with a deleted blueprint should fail
test_compose = {"blueprint_name": "example-glusterfs",
"compose_type": "tar",
"branch": "master"}
resp = self.server.post("/api/v0/compose?test=2",
data=json.dumps(test_compose),
content_type="application/json")
data = json.loads(resp.data)
self.assertNotEqual(data, None)
self.assertEqual(data["status"], False, "Compose of deleted blueprint did not fail: %s" % data)
def test_11_blueprints_undo(self):
"""Test POST /api/v0/blueprints/undo/<blueprint_name>/<commit>"""
resp = self.server.get("/api/v0/blueprints/changes/example-glusterfs")
@ -1473,6 +1486,71 @@ class ServerTestCase(unittest.TestCase):
resp = self.server.get("/api/v0/compose/log/" + UTF8_TEST_STRING)
self.assertInputError(resp)
# A series of tests for dealing with deleted blueprints
def test_deleted_bp_00_setup(self):
"""Setup a deleted blueprint for use in the tests"""
# Start by creating a new blueprint for this series of tests and then
# deleting it.
test_blueprint = {"description": "A blueprint that has been deleted",
"name":"deleted-blueprint",
"version": "0.0.1",
"modules":[{"name":"glusterfs", "version":"5.*"},
{"name":"glusterfs-cli", "version":"5.*"}],
"packages":[{"name":"samba", "version":"4.*.*"},
{"name":"tmux", "version":"2.8"}],
"groups": []}
resp = self.server.post("/api/v0/blueprints/new",
data=json.dumps(test_blueprint),
content_type="application/json")
data = json.loads(resp.data)
self.assertEqual(data, {"status":True})
resp = self.server.delete("/api/v0/blueprints/delete/deleted-blueprint")
data = json.loads(resp.data)
self.assertEqual(data, {"status":True})
def test_deleted_bp_01_show(self):
"""Test blueprint show with deleted blueprint"""
resp = self.server.get("/api/v0/blueprints/info/deleted-blueprint")
data = json.loads(resp.data)
self.assertNotEqual(data, None)
self.assertTrue(len(data["errors"]) > 0)
self.assertEqual(data["errors"][0]["id"], "UnknownBlueprint")
def test_deleted_bp_02_depsolve(self):
"""Test blueprint depsolve with deleted blueprint"""
resp = self.server.get("/api/v0/blueprints/depsolve/deleted-blueprint")
data = json.loads(resp.data)
self.assertNotEqual(data, None)
self.assertTrue(len(data["errors"]) > 0)
self.assertEqual(data["errors"][0]["id"], "UnknownBlueprint")
def test_deleted_bp_03_diff(self):
"""Test blueprint diff with deleted blueprint"""
resp = self.server.get("/api/v0/blueprints/diff/deleted-blueprint/NEWEST/WORKSPACE")
data = json.loads(resp.data)
self.assertNotEqual(data, None)
self.assertTrue(len(data["errors"]) > 0)
self.assertEqual(data["status"], False)
self.assertEqual(data["errors"][0]["id"], "UnknownBlueprint")
def test_deleted_bp_04_freeze(self):
"""Test blueprint freeze with deleted blueprint"""
resp = self.server.get("/api/v0/blueprints/freeze/deleted-blueprint")
data = json.loads(resp.data)
self.assertNotEqual(data, None)
self.assertTrue(len(data["errors"]) > 0)
self.assertEqual(data["errors"][0]["id"], "UnknownBlueprint")
def test_deleted_bp_05_tag(self):
"""Test blueprint tag with deleted blueprint"""
resp = self.server.post("/api/v0/blueprints/tag/deleted-blueprint")
data = json.loads(resp.data)
self.assertNotEqual(data, None)
self.assertTrue(len(data["errors"]) > 0)
self.assertEqual(data["errors"][0]["id"], "UnknownBlueprint")
@contextmanager
def in_tempdir(prefix='tmp'):
"""Execute a block of code with chdir in a temporary location"""