Mercurial > repos > shellac > guppy_basecaller

annotate env/lib/python3.7/site-packages/boto/roboto/awsqueryservice.py @ 0:26e78fe6e8c4 draft

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"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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0
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1 from __future__ import print_function
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2 import os
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3 import urlparse
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4 import boto
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5 import boto.connection
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6 import boto.jsonresponse
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7 import boto.exception
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8 from boto.roboto import awsqueryrequest
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9
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10 class NoCredentialsError(boto.exception.BotoClientError):
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11
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12 def __init__(self):
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13 s = 'Unable to find credentials'
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14 super(NoCredentialsError, self).__init__(s)
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15
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16 class AWSQueryService(boto.connection.AWSQueryConnection):
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17
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18 Name = ''
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19 Description = ''
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20 APIVersion = ''
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21 Authentication = 'sign-v2'
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22 Path = '/'
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23 Port = 443
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24 Provider = 'aws'
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25 EnvURL = 'AWS_URL'
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26
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27 Regions = []
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28
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29 def __init__(self, **args):
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30 self.args = args
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31 self.check_for_credential_file()
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32 self.check_for_env_url()
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33 if 'host' not in self.args:
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34 if self.Regions:
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35 region_name = self.args.get('region_name',
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36 self.Regions[0]['name'])
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37 for region in self.Regions:
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38 if region['name'] == region_name:
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39 self.args['host'] = region['endpoint']
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40 if 'path' not in self.args:
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41 self.args['path'] = self.Path
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42 if 'port' not in self.args:
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43 self.args['port'] = self.Port
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44 try:
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45 super(AWSQueryService, self).__init__(**self.args)
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46 self.aws_response = None
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47 except boto.exception.NoAuthHandlerFound:
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48 raise NoCredentialsError()
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49
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50 def check_for_credential_file(self):
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51 """
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52 Checks for the existence of an AWS credential file.
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53 If the environment variable AWS_CREDENTIAL_FILE is
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54 set and points to a file, that file will be read and
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55 will be searched credentials.
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56 Note that if credentials have been explicitelypassed
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57 into the class constructor, those values always take
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58 precedence.
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59 """
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60 if 'AWS_CREDENTIAL_FILE' in os.environ:
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61 path = os.environ['AWS_CREDENTIAL_FILE']
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62 path = os.path.expanduser(path)
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63 path = os.path.expandvars(path)
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64 if os.path.isfile(path):
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65 fp = open(path)
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66 lines = fp.readlines()
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67 fp.close()
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68 for line in lines:
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69 if line[0] != '#':
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70 if '=' in line:
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71 name, value = line.split('=', 1)
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72 if name.strip() == 'AWSAccessKeyId':
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73 if 'aws_access_key_id' not in self.args:
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74 value = value.strip()
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75 self.args['aws_access_key_id'] = value
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76 elif name.strip() == 'AWSSecretKey':
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77 if 'aws_secret_access_key' not in self.args:
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78 value = value.strip()
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79 self.args['aws_secret_access_key'] = value
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80 else:
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81 print('Warning: unable to read AWS_CREDENTIAL_FILE')
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82
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83 def check_for_env_url(self):
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84 """
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85 First checks to see if a url argument was explicitly passed
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86 in. If so, that will be used. If not, it checks for the
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87 existence of the environment variable specified in ENV_URL.
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88 If this is set, it should contain a fully qualified URL to the
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89 service you want to use.
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90 Note that any values passed explicitly to the class constructor
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91 will take precedence.
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92 """
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93 url = self.args.get('url', None)
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94 if url:
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95 del self.args['url']
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96 if not url and self.EnvURL in os.environ:
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97 url = os.environ[self.EnvURL]
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98 if url:
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99 rslt = urlparse.urlparse(url)
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100 if 'is_secure' not in self.args:
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101 if rslt.scheme == 'https':
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102 self.args['is_secure'] = True
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103 else:
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104 self.args['is_secure'] = False
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105
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106 host = rslt.netloc
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107 port = None
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108 l = host.split(':')
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109 if len(l) > 1:
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110 host = l[0]
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111 port = int(l[1])
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112 if 'host' not in self.args:
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113 self.args['host'] = host
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114 if port and 'port' not in self.args:
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115 self.args['port'] = port
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116
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117 if rslt.path and 'path' not in self.args:
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118 self.args['path'] = rslt.path
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119
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120 def _required_auth_capability(self):
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121 return [self.Authentication]
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122