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api.py
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api.py
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""" Views for simple api calls that return json data """
import logging
import posixpath
from contextlib import closing
from io import BytesIO
from urllib.request import urlopen
# pylint: disable=E0611
from paste.httpheaders import CACHE_CONTROL, CONTENT_DISPOSITION
# pylint: enable=E0611
from pyramid.httpexceptions import HTTPBadRequest, HTTPForbidden, HTTPNotFound
from pyramid.security import NO_PERMISSION_REQUIRED
from pyramid.view import view_config
from pyramid_duh import addslash, argify
from pypicloud.route import (
APIPackageFileResource,
APIPackageResource,
APIPackagingResource,
APIResource,
)
from pypicloud.util import normalize_name
from .login import handle_register_request
LOG = logging.getLogger(__name__)
@view_config(
context=APIPackagingResource, request_method="GET", subpath=(), renderer="json"
)
@addslash
@argify
def all_packages(request, verbose=False):
"""List all packages"""
if verbose:
packages = request.db.summary()
else:
packages = request.db.distinct()
i = 0
while i < len(packages):
package = packages[i]
name = package if isinstance(package, str) else package["name"]
if not request.access.has_permission(name, "read"):
del packages[i]
continue
i += 1
return {"packages": packages}
@view_config(
context=APIPackageResource,
request_method="GET",
subpath=(),
renderer="json",
permission="read",
)
@addslash
def package_versions(context, request):
"""List all unique package versions"""
normalized_name = normalize_name(context.name)
versions = request.db.all(normalized_name)
return {
"packages": versions,
"write": request.access.has_permission(normalized_name, "write"),
}
def fetch_dist(request, url, name, version, summary, requires_python):
"""Fetch a Distribution and upload it to the storage backend"""
filename = posixpath.basename(url)
handle = urlopen(url)
with closing(handle):
data = handle.read()
# TODO: digest validation
return (
request.db.upload(
filename, BytesIO(data), name, version, summary, requires_python
),
data,
)
@view_config(context=APIPackageFileResource, request_method="GET", permission="read")
def download_package(context, request):
"""Download package, or redirect to the download link"""
package = request.db.fetch(context.filename)
if not package:
if request.registry.fallback != "cache":
return HTTPNotFound()
if not request.access.can_update_cache():
return request.forbid()
# If we are caching pypi, download the package from pypi and save it
releases = request.locator.get_releases(context.name)
dist = None
for release in releases:
if posixpath.basename(release["url"]) == context.filename:
dist = release
break
if dist is None:
return HTTPNotFound()
LOG.info("Caching %s from %s", context.filename, request.fallback_simple)
package, data = fetch_dist(
request,
dist["url"],
dist["name"],
dist["version"],
dist["summary"],
dist["requires_python"],
)
disp = CONTENT_DISPOSITION.tuples(filename=package.filename)
request.response.headers.update(disp)
cache_control = CACHE_CONTROL.tuples(
public=True, max_age=request.registry.package_max_age
)
request.response.headers.update(cache_control)
request.response.body = data
request.response.content_type = "application/octet-stream"
return request.response
if request.registry.stream_files:
with request.db.storage.open(package) as data:
request.response.body = data.read()
disp = CONTENT_DISPOSITION.tuples(filename=package.filename)
request.response.headers.update(disp)
cache = CACHE_CONTROL.tuples(
public=True, max_age=request.registry.package_max_age
)
request.response.headers.update(cache)
request.response.content_type = "application/octet-stream"
return request.response
response = request.db.download_response(package)
return response
@view_config(
context=APIPackageFileResource,
request_method="POST",
subpath=(),
renderer="json",
permission="write",
)
@argify
def upload_package(context, request, content, summary=None, requires_python=None):
"""Upload a package"""
try:
return request.db.upload(
content.filename,
content.file,
name=context.name,
summary=summary,
requires_python=requires_python,
)
except ValueError as e: # pragma: no cover
return HTTPBadRequest(*e.args)
@view_config(
context=APIPackageFileResource,
request_method="DELETE",
subpath=(),
permission="write",
)
def delete_package(context, request):
"""Delete a package"""
package = request.db.fetch(context.filename)
if package is None:
return HTTPBadRequest("Could not find %s" % context.filename)
request.db.delete(package)
return request.response
@view_config(
context=APIResource,
name="user",
request_method="PUT",
subpath=("username/*"),
renderer="json",
permission=NO_PERMISSION_REQUIRED,
)
@argify
def register(request, password):
"""Register a user"""
username = request.named_subpaths["username"]
return handle_register_request(request, username, password)
@view_config(
context=APIResource,
name="user",
subpath=("password"),
request_method="POST",
permission="login",
)
@argify
def change_password(request, old_password, new_password):
"""Change a user's password"""
if not request.access.verify_user(request.authenticated_userid, old_password):
return HTTPForbidden()
request.access.edit_user_password(request.authenticated_userid, new_password)
return request.response