2015-05-22 12:25:29 +02:00

103 lines
3.5 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2015 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import hashlib
import json
import os
import re
import urllib.request
from gns3registry.image import Image
class Registry:
def __init__(self):
pass
def detect_image(self, image_path):
"""
:returns: Array of configuration corresponding to the image
"""
image = Image(image_path)
configurations = []
#TODO: Manage open error
for config in self._all_configs():
if self._image_match(image, config):
configurations.append(config)
return configurations
def download_image(self, sha1sum, images_dir):
for config in self._all_configs():
for file in config.get("hda_disk_image", []):
if file["sha1sum"] == sha1sum:
path = os.path.join(images_dir, file["filename"])
if "direct_download_url" in file:
print("Download {} to {}".format(file["direct_download_url"], path))
#TODO: Skip download if file already exist with same sha1
urllib.request.urlretrieve(file["direct_download_url"], path)
return path
else:
print("You need to download by hand the image {filename} from:\n{download_url}\n\nAnd run: ./bin/gns3-get --add {filename}".format(filename=file["filename"], download_url=file["download_url"]))
return None
def search_device(self, query):
results = []
for config in self._all_configs():
if re.match(r".*{}.*".format(query), config["name"], flags=re.IGNORECASE):
results.append(config)
return results
def _all_configs(self):
"""
Iterate on all configs available on devices
"""
devices_path = self._get_devices_path()
for (dirpath, dirnames, filenames) in os.walk(devices_path):
for filename in filenames:
file = os.path.join(dirpath, filename)
if file.endswith(".json"):
with open(os.path.join(devices_path, file)) as f:
config = json.load(f)
config["filename"] = file[:-5]
yield config
def _image_match(self, image, config):
"""
:returns: True if image is present in configuration
"""
for file in config.get("hda_disk_image", []):
if file.get("sha1sum", None) == image.sha1sum:
image.version = file["version"]
config["hda_disk_image"] = image
return True
return False
def _get_devices_path(self):
"""
Get the path where the registry files are located
"""
path = os.path.abspath(os.path.dirname(__file__))
return os.path.join(path, "..", "devices")