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"""Functions for GitHub API requests."""
import getpass
import json
import os
import re
import sys
import requests
try:
import requests_cache
except ImportError:
print("no cache", file=sys.stderr)
else:
requests_cache.install_cache("gh_api", expire_after=3600)
# Keyring stores passwords by a 'username', but we're not storing a username and
# password
fake_username = 'ipython_tools'
class Obj(dict):
"""Dictionary with attribute access to names."""
def __getattr__(self, name):
try:
return self[name]
except KeyError as err:
raise AttributeError(name) from err
def __setattr__(self, name, val):
self[name] = val
token = None
def get_auth_token():
global token
if token is not None:
return token
try:
with open(os.path.join(os.path.expanduser('~'), '.ghoauth')) as f:
token, = f
return token
except Exception:
pass
import keyring
token = keyring.get_password('github', fake_username)
if token is not None:
return token
print("Please enter your github username and password. These are not "
"stored, only used to get an oAuth token. You can revoke this at "
"any time on GitHub.")
user = input("Username: ")
pw = getpass.getpass("Password: ")
auth_request = {
"scopes": [
"public_repo",
"gist"
],
"note": "IPython tools",
"note_url": "https://github.com/ipython/ipython/tree/master/tools",
}
response = requests.post('https://api.github.com/authorizations',
auth=(user, pw), data=json.dumps(auth_request))
response.raise_for_status()
token = json.loads(response.text)['token']
keyring.set_password('github', fake_username, token)
return token
def make_auth_header():
return {'Authorization': 'token ' + get_auth_token().replace("\n","")}
def post_issue_comment(project, num, body):
url = f'https://api.github.com/repos/{project}/issues/{num}/comments'
payload = json.dumps({'body': body})
requests.post(url, data=payload, headers=make_auth_header())
def post_gist(content, description='', filename='file', auth=False):
"""Post some text to a Gist, and return the URL."""
post_data = json.dumps({
"description": description,
"public": True,
"files": {
filename: {
"content": content
}
}
}).encode('utf-8')
headers = make_auth_header() if auth else {}
response = requests.post("https://api.github.com/gists", data=post_data, headers=headers)
response.raise_for_status()
response_data = json.loads(response.text)
return response_data['html_url']
def get_pull_request(project, num, auth=False):
"""Return the pull request info for a given PR number."""
url = f"https://api.github.com/repos/{project}/pulls/{num}"
if auth:
header = make_auth_header()
else:
header = None
print("fetching %s" % url, file=sys.stderr)
response = requests.get(url, headers=header)
response.raise_for_status()
return json.loads(response.text, object_hook=Obj)
def get_pull_request_files(project, num, auth=False):
"""get list of files in a pull request"""
url = f"https://api.github.com/repos/{project}/pulls/{num}/files"
if auth:
header = make_auth_header()
else:
header = None
return get_paged_request(url, headers=header)
element_pat = re.compile(r'<(.+?)>')
rel_pat = re.compile(r'rel=[\'"](\w+)[\'"]')
def get_paged_request(url, headers=None, **params):
"""get a full list, handling APIv3's paging"""
results = []
params.setdefault("per_page", 100)
while True:
if '?' in url:
params = None
print(f"fetching {url}", file=sys.stderr)
else:
print(f"fetching {url} with {params}", file=sys.stderr)
response = requests.get(url, headers=headers, params=params)
response.raise_for_status()
results.extend(response.json())
if 'next' in response.links:
url = response.links['next']['url']
else:
break
return results
def get_pulls_list(project, auth=False, **params):
"""get pull request list"""
params.setdefault("state", "closed")
url = f"https://api.github.com/repos/{project}/pulls"
if auth:
headers = make_auth_header()
else:
headers = None
pages = get_paged_request(url, headers=headers, **params)
return pages
def get_issues_list(project, auth=False, **params):
"""get issues list"""
params.setdefault("state", "closed")
url = f"https://api.github.com/repos/{project}/issues"
if auth:
headers = make_auth_header()
else:
headers = None
pages = get_paged_request(url, headers=headers, **params)
return pages
def get_milestones(project, auth=False, **params):
params.setdefault('state', 'all')
url = f"https://api.github.com/repos/{project}/milestones"
if auth:
headers = make_auth_header()
else:
headers = None
milestones = get_paged_request(url, headers=headers, **params)
return milestones
def get_milestone_id(project, milestone, auth=False, **params):
milestones = get_milestones(project, auth=auth, **params)
for mstone in milestones:
if mstone['title'] == milestone:
return mstone['number']
raise ValueError("milestone %s not found" % milestone)
def is_pull_request(issue):
"""Return True if the given issue is a pull request."""
return bool(issue.get('pull_request', {}).get('html_url', None))
def get_authors(pr):
print("getting authors for #%i" % pr['number'], file=sys.stderr)
h = make_auth_header()
r = requests.get(pr['commits_url'], headers=h)
r.raise_for_status()
commits = r.json()
authors = []
for commit in commits:
author = commit['commit']['author']
authors.append(f"{author['name']} <{author['email']}>")
return authors
# encode_multipart_formdata is from urllib3.filepost
# The only change is to iter_fields, to enforce S3's required key ordering
def iter_fields(fields):
fields = fields.copy()
for key in [
'key', 'acl', 'Filename', 'success_action_status',
'AWSAccessKeyId', 'Policy', 'Signature', 'Content-Type', 'file']:
yield key, fields.pop(key)
yield from fields.items()
def encode_multipart_formdata(fields, boundary=None):
"""
Encode a dictionary of ``fields`` using the multipart/form-data mime format.
:param fields:
Dictionary of fields or list of (key, value) field tuples. The key is
treated as the field name, and the value as the body of the form-data
bytes. If the value is a tuple of two elements, then the first element
is treated as the filename of the form-data section.
Field names and filenames must be str.
:param boundary:
If not specified, then a random boundary will be generated using
:func:`mimetools.choose_boundary`.
"""
# copy requests imports in here:
from io import BytesIO
from requests.packages.urllib3.filepost import (
choose_boundary, writer, b, get_content_type
)
body = BytesIO()
if boundary is None:
boundary = choose_boundary()
for fieldname, value in iter_fields(fields):
body.write(b('--%s\r\n' % (boundary)))
if isinstance(value, tuple):
filename, data = value
writer(body).write('Content-Disposition: form-data; name="%s"; '
'filename="%s"\r\n' % (fieldname, filename))
body.write(b('Content-Type: %s\r\n\r\n' %
(get_content_type(filename))))
else:
data = value
writer(body).write('Content-Disposition: form-data; name="%s"\r\n'
% (fieldname))
body.write(b'Content-Type: text/plain\r\n\r\n')
if isinstance(data, int):
data = str(data) # Backwards compatibility
if isinstance(data, str):
writer(body).write(data)
else:
body.write(data)
body.write(b'\r\n')
body.write(b('--%s--\r\n' % (boundary)))
content_type = b('multipart/form-data; boundary=%s' % boundary)
return body.getvalue(), content_type
def post_download(project, filename, name=None, description=""):
"""Upload a file to the GitHub downloads area"""
if name is None:
name = os.path.basename(filename)
with open(filename, 'rb') as f:
filedata = f.read()
url = f"https://api.github.com/repos/{project}/downloads"
payload = json.dumps(dict(name=name, size=len(filedata),
description=description))
response = requests.post(url, data=payload, headers=make_auth_header())
response.raise_for_status()
reply = json.loads(response.content)
s3_url = reply['s3_url']
fields = dict(
key=reply['path'],
acl=reply['acl'],
success_action_status=201,
Filename=reply['name'],
AWSAccessKeyId=reply['accesskeyid'],
Policy=reply['policy'],
Signature=reply['signature'],
file=(reply['name'], filedata),
)
fields['Content-Type'] = reply['mime_type']
data, content_type = encode_multipart_formdata(fields)
s3r = requests.post(s3_url, data=data, headers={'Content-Type': content_type})
return s3r
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