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from __future__ import absolute_import, division, print_function 

import os 

import json 

import logging 

import re 

 

import requests 

from requests.utils import urlparse 

 

import appr 

from appr.auth import ApprAuth 

from appr.config import ApprConfig 

from appr.discovery import discover_sources, ishosted 

 

logger = logging.getLogger(__name__) 

DEFAULT_REGISTRY = 'http://localhost:5000' 

DEFAULT_PREFIX = "/cnr" 

 

 

class ApprClient(object): 

def __init__(self, endpoint=DEFAULT_REGISTRY, auth=None, config=None, requests_verify=True): 

if not auth: 

auth = ApprAuth() 

if not config: 

config = ApprConfig() 

self.auth = auth 

self.config = config 

self.endpoint = self._configure_endpoint(endpoint) 

self.host = self.endpoint.geturl() 

self._headers = { 

'Content-Type': 'application/json', 

'User-Agent': "apprpy-cli/%s" % appr.__version__ 

} 

 

if 'APPR_CA_BUNDLES' in os.environ: 

requests_verify = os.environ['APPR_CA_BUNDLES'] 

if requests_verify is None: 

requests_verify = True 

self.verify = requests_verify 

 

def _url(self, path): 

return self.endpoint.geturl() + path 

 

def auth_token(self): 

""" return the Authorization bearer """ 

return self.auth.token(self.host) 

 

def _configure_endpoint(self, endpoint): 

if endpoint is None: 

endpoint = DEFAULT_REGISTRY 

alias = self.config.get_registry_alias(endpoint) 

if alias: 

endpoint = alias 

if not re.match("https?://", endpoint): 

if endpoint.startswith("localhost"): 

scheme = "http://" 

else: 

scheme = "https://" 

endpoint = scheme + endpoint 

return urlparse(endpoint + DEFAULT_PREFIX) 

 

@property 

def headers(self): 

token = self.auth_token() 

headers = {} 

headers.update(self._headers) 

if token is not None: 

headers['Authorization'] = token 

return headers 

 

def version(self): 

path = "/version" 

resp = requests.get(self._url(path), headers=self.headers, verify=self.verify) 

resp.raise_for_status() 

return resp.json() 

 

def show_package(self, package, version, media_type=None): 

path = "/api/v1/packages/%s" % (package) 

if version and version != 'default': 

path = path + "/%s" % version 

params = {} 

if media_type: 

params["media_type"] = media_type 

resp = requests.get(self._url(path), params=params, headers=self.headers, verify=self.verify) 

resp.raise_for_status() 

return resp.json() 

 

def _get_pull_url(self, package, version_parts, media_type): 

if media_type is None: 

raise ValueError("media-type is not set") 

 

organization, name = package.split("/") 

if version_parts['key'] == "digest": 

digest = version_parts['value'] 

url = "/api/v1/packages/%s/%s/blobs/sha256/%s" % (organization, name, digest) 

elif version_parts['key'] == "channel": 

chan_name = version_parts['value'] 

channel = self.show_channels(package, chan_name) 

version = channel['current'] 

url = "/api/v1/packages/%s/%s/%s/%s/pull" % (organization, name, version, media_type) 

elif version_parts['key'] == "version": 

version = version_parts['value'] 

url = "/api/v1/packages/%s/%s/%s/%s/pull" % (organization, name, version, media_type) 

else: 

url = "/api/v1/packages/%s/%s/%s/%s/pull" % (organization, name, 

version_parts['value'], media_type) 

return url 

 

def _pull_path(self, name, version_parts, media_type): 

if ishosted(name): 

sources = discover_sources(name, version_parts['value'], media_type) 

path = sources[0] 

else: 

path = self._url(self._get_pull_url(name, version_parts, media_type)) 

return path 

 

def pull(self, name, version_parts, media_type): 

path = self._pull_path(name, version_parts, media_type) 

resp = requests.get(path, headers=self.headers, verify=self.verify) 

resp.raise_for_status() 

return resp.content 

 

def pull_json(self, name, version_parts, media_type): 

path = self._pull_path(name, version_parts, media_type) 

resp = requests.get(path, params={'format': 'json'}, headers=self.headers, verify=self.verify) 

resp.raise_for_status() 

return resp.json() 

 

def list_packages(self, params): 

path = "/api/v1/packages" 

resp = requests.get(self._url(path), params=params, headers=self.headers, verify=self.verify) 

resp.raise_for_status() 

return resp.json() 

 

def push(self, name, body, force=False): 

organization, pname = name.split("/") 

body['name'] = pname 

body['organization'] = organization 

body['package'] = name 

path = "/api/v1/packages/%s/%s" % (organization, pname) 

resp = requests.post( 

self._url(path), params={"force": str(force).lower()}, data=json.dumps(body), 

headers=self.headers, verify=self.verify) 

resp.raise_for_status() 

return resp.json() 

 

def delete_package(self, name, version, media_type): 

organization, name = name.split("/") 

path = "/api/v1/packages/%s/%s/%s/%s" % (organization, name, version, media_type) 

resp = requests.delete(self._url(path), headers=self.headers, verify=self.verify) 

resp.raise_for_status() 

return resp.json() 

 

def _crud_channel(self, name, channel='', action='get'): 

if channel is None: 

channel = '' 

path = "/api/v1/packages/%s/channels/%s" % (name, channel) 

resp = getattr(requests, action)(self._url(path), params={}, headers=self.headers, verify=self.verify) 

if channel == '' and resp.status_code == 404: 

return [] 

resp.raise_for_status() 

 

return resp.json() 

 

def show_channels(self, name, channel=None): 

return self._crud_channel(name, channel) 

 

def create_channel(self, name, channel): 

return self._crud_channel(name, channel, 'post') 

 

def delete_channel(self, name, channel): 

return self._crud_channel(name, channel, 'delete') 

 

def create_channel_release(self, name, channel, release): 

path = "%s/%s" % (channel, release) 

return self._crud_channel(name, path, 'post') 

 

def delete_channel_release(self, name, channel, release): 

path = "%s/%s" % (channel, release) 

return self._crud_channel(name, path, 'delete') 

 

def login(self, username, password): 

path = "/api/v1/users/login" 

resp = requests.post( 

self._url(path), data=json.dumps({ 

"user": { 

"username": username, 

"password": password 

} 

}), headers=self.headers, verify=self.verify) 

resp.raise_for_status() 

result = resp.json() 

self.auth.add_token(self.host, result['token']) 

return result 

 

def signup(self, username, password, password_confirmation, email): 

path = "/api/v1/users" 

resp = requests.post( 

self._url(path), data=json.dumps({ 

"user": { 

"username": username, 

"password": password, 

"password_confirmation": password_confirmation, 

"email": email 

} 

}), headers=self.headers, verify=self.verify) 

resp.raise_for_status() 

result = resp.json() 

self.auth.add_token(self.host, result['token']) 

return result 

 

def generate(self, name, namespace=None, variables=None, version=None, shards=None): 

path = "/api/v1/packages/%s/generate" % name 

params = {} 

body = {} 

body['variables'] = variables or {} 

if namespace: 

params['namespace'] = namespace 

if shards: 

body['shards'] = shards 

if version: 

params['version'] = version 

r = requests.get( 

self._url(path), data=json.dumps(body), params=params, headers=self.headers) 

r.raise_for_status() 

return r.json()