Parent

RightAws::S3Interface

Public Class Methods

bench_s3() click to toggle source
# File lib/s3/right_s3_interface.rb, line 46
def self.bench_s3
  @@bench.service
end
bench_xml() click to toggle source
# File lib/s3/right_s3_interface.rb, line 43
def self.bench_xml
  @@bench.xml
end
new(aws_access_key_id=nil, aws_secret_access_key=nil, params={}) click to toggle source

Creates new RightS3 instance.

s3 = RightAws::S3Interface.new('1E3GDYEOGFJPIT7XXXXXX','hgTHt68JY07JKUY08ftHYtERkjgtfERn57XXXXXX', {:multi_thread => true, :logger => Logger.new('/tmp/x.log')}) #=> #<RightAws::S3Interface:0xb7b3c27c>

Params is a hash:

{:server       => 's3.amazonaws.com'   # Amazon service host: 's3.amazonaws.com'(default)
 :port         => 443                  # Amazon service port: 80 or 443(default)
 :protocol     => 'https'              # Amazon service protocol: 'http' or 'https'(default)
 :multi_thread => true|false           # Multi-threaded (connection per each thread): true or false(default)
 :logger       => Logger Object}       # Logger instance: logs to STDOUT if omitted }
# File lib/s3/right_s3_interface.rb, line 63
def initialize(aws_access_key_id=nil, aws_secret_access_key=nil, params={})
  init({ :name             => 'S3', 
         :default_host     => ENV['S3_URL'] ? URI.parse(ENV['S3_URL']).host   : DEFAULT_HOST, 
         :default_port     => ENV['S3_URL'] ? URI.parse(ENV['S3_URL']).port   : DEFAULT_PORT,
         :default_service  => ENV['S3_URL'] ? URI.parse(ENV['S3_URL']).path   : DEFAULT_SERVICE,
         :default_protocol => ENV['S3_URL'] ? URI.parse(ENV['S3_URL']).scheme : DEFAULT_PROTOCOL }, 
       aws_access_key_id     || ENV['AWS_ACCESS_KEY_ID'], 
       aws_secret_access_key || ENV['AWS_SECRET_ACCESS_KEY'], 
       params)
end

Public Instance Methods

bucket_location(bucket, headers={}) click to toggle source

Retrieve bucket location

s3.create_bucket('my-awesome-bucket-us')        #=> true
puts s3.bucket_location('my-awesome-bucket-us') #=> '' (Amazon's default value assumed)

s3.create_bucket('my-awesome-bucket-eu', :location => :eu) #=> true
puts s3.bucket_location('my-awesome-bucket-eu')            #=> 'EU'
# File lib/s3/right_s3_interface.rb, line 215
def bucket_location(bucket, headers={})
  req_hash = generate_rest_request('GET', headers.merge(:url=>"#{bucket}?location"))
  request_info(req_hash, S3BucketLocationParser.new)
rescue
  on_exception
end
clear_bucket(bucket) click to toggle source

Removes all keys from bucket. Returns true or an exception.

s3.clear_bucket('my_awesome_bucket') #=> true
# File lib/s3/right_s3_interface.rb, line 764
def clear_bucket(bucket)
  incrementally_list_bucket(bucket) do |results|
    results[:contents].each { |key| delete(bucket, key[:key]) }
  end
  true
rescue
  on_exception
end
copy(src_bucket, src_key, dest_bucket, dest_key=nil, directive=:copy, headers={}) click to toggle source

Copy an object.

directive: :copy    - copy meta-headers from source (default value)
           :replace - replace meta-headers by passed ones

# copy a key with meta-headers
s3.copy('b1', 'key1', 'b1', 'key1_copy') #=> {:e_tag=>"\"e8b...8d\"", :last_modified=>"2008-05-11T10:25:22.000Z"}

# copy a key, overwrite meta-headers
s3.copy('b1', 'key2', 'b1', 'key2_copy', :replace, 'x-amz-meta-family'=>'Woho555!') #=> {:e_tag=>"\"e8b...8d\"", :last_modified=>"2008-05-11T10:26:22.000Z"}

see: docs.amazonwebservices.com/AmazonS3/2006-03-01/UsingCopyingObjects.html

http://docs.amazonwebservices.com/AmazonS3/2006-03-01/RESTObjectCOPY.html
# File lib/s3/right_s3_interface.rb, line 632
def copy(src_bucket, src_key, dest_bucket, dest_key=nil, directive=:copy, headers={})
  dest_key ||= src_key
  headers['x-amz-metadata-directive'] = directive.to_s.upcase
  headers['x-amz-copy-source']        = "#{src_bucket}/#{CGI::escape src_key}"
  req_hash = generate_rest_request('PUT', headers.merge(:url=>"#{dest_bucket}/#{CGI::escape dest_key}"))
  request_info(req_hash, S3CopyParser.new)
rescue
  on_exception
end
create_bucket(bucket, headers={}) click to toggle source

Creates new bucket. Returns true or an exception.

# create a bucket at American server
s3.create_bucket('my-awesome-bucket-us') #=> true
# create a bucket at European server
s3.create_bucket('my-awesome-bucket-eu', :location => :eu) #=> true
# File lib/s3/right_s3_interface.rb, line 195
def create_bucket(bucket, headers={})
  data = nil
  unless headers[:location].blank?
    data = "<CreateBucketConfiguration><LocationConstraint>#{headers[:location].to_s.upcase}</LocationConstraint></CreateBucketConfiguration>"
  end
  req_hash = generate_rest_request('PUT', headers.merge(:url=>bucket, :data => data))
  request_info(req_hash, RightHttp2xxParser.new)
rescue Exception => e
    # if the bucket exists AWS returns an error for the location constraint interface. Drop it
  e.is_a?(RightAws::AwsError) && e.message.include?('BucketAlreadyOwnedByYou') ? true  : on_exception
end
delete(bucket, key='', headers={}) click to toggle source

Deletes key. Returns true or an exception.

s3.delete('my_awesome_bucket', 'log/curent/1.log') #=> true
# File lib/s3/right_s3_interface.rb, line 612
def delete(bucket, key='', headers={})
  req_hash = generate_rest_request('DELETE', headers.merge(:url=>"#{bucket}/#{CGI::escape key}"))
  request_info(req_hash, RightHttp2xxParser.new)
rescue
  on_exception
end
delete_bucket(bucket, headers={}) click to toggle source

Deletes new bucket. Bucket must be empty! Returns true or an exception.

s3.delete_bucket('my_awesome_bucket')  #=> true

See also: force_delete_bucket method

# File lib/s3/right_s3_interface.rb, line 259
def delete_bucket(bucket, headers={})
  req_hash = generate_rest_request('DELETE', headers.merge(:url=>bucket))
  request_info(req_hash, RightHttp2xxParser.new)
rescue
  on_exception
end
delete_folder(bucket, folder_key, separator='/') click to toggle source

Deletes all keys where the 'folder_key' may be assumed as 'folder' name. Returns an array of string keys that have been deleted.

s3.list_bucket('my_awesome_bucket').map{|key_data| key_data[:key]} #=> ['test','test/2/34','test/3','test1','test1/logs']
s3.delete_folder('my_awesome_bucket','test')                       #=> ['test','test/2/34','test/3']
# File lib/s3/right_s3_interface.rb, line 789
def delete_folder(bucket, folder_key, separator='/')
  folder_key.chomp!(separator)
  allkeys = []
  incrementally_list_bucket(bucket, { 'prefix' => folder_key }) do |results|
    keys = results[:contents].map{ |s3_key| s3_key[:key][/^#{folder_key}($|#{separator}.*)/] ? s3_key[:key] : nil}.compact
    keys.each{ |key| delete(bucket, key) }
    allkeys << keys
  end
  allkeys
rescue
  on_exception
end
force_delete_bucket(bucket) click to toggle source

Deletes all keys in bucket then deletes bucket. Returns true or an exception.

s3.force_delete_bucket('my_awesome_bucket')
# File lib/s3/right_s3_interface.rb, line 777
def force_delete_bucket(bucket)
  clear_bucket(bucket)
  delete_bucket(bucket)
rescue
  on_exception
end
get(bucket, key, headers={}, &block) click to toggle source

Retrieves object data from Amazon. Returns a hash or an exception.

s3.get('my_awesome_bucket', 'log/curent/1.log') #=>

    {:object  => "Ola-la!", 
     :headers => {"last-modified"     => "Wed, 23 May 2007 09:08:04 GMT", 
                  "content-type"      => "", 
                  "etag"              => "\"000000000096f4ee74bc4596443ef2a4\"", 
                  "date"              => "Wed, 23 May 2007 09:08:03 GMT", 
                  "x-amz-id-2"        => "ZZZZZZZZZZZZZZZZZZZZ1HJXZoehfrS4QxcxTdNGldR7w/FVqblP50fU8cuIMLiu", 
                  "x-amz-meta-family" => "Woho556!",
                  "x-amz-request-id"  => "0000000C246D770C", 
                  "server"            => "AmazonS3", 
                  "content-length"    => "7"}}

If a block is provided, yields incrementally to the block as the response is read. For large responses, this function is ideal as the response can be 'streamed'. The hash containing header fields is still returned. Example: foo = File.new('./chunder.txt', File::CREAT|File::RDWR) rhdr = s3.get('aws-test', 'Cent5V1_7_1.img.part.00') do |chunk|

foo.write(chunk)

end foo.close

# File lib/s3/right_s3_interface.rb, line 515
def get(bucket, key, headers={}, &block)
  req_hash = generate_rest_request('GET', headers.merge(:url=>"#{bucket}/#{CGI::escape key}"))
  request_info(req_hash, S3HttpResponseBodyParser.new, &block)
rescue
  on_exception
end
get_acl(bucket, key='', headers={}) click to toggle source

Retieves the ACL (access control policy) for a bucket or object. Returns a hash of headers and xml doc with ACL data. See: docs.amazonwebservices.com/AmazonS3/2006-03-01/RESTAccessPolicy.html.

s3.get_acl('my_awesome_bucket', 'log/curent/1.log') #=>
  {:headers => {"x-amz-id-2"=>"B3BdDMDUz+phFF2mGBH04E46ZD4Qb9HF5PoPHqDRWBv+NVGeA3TOQ3BkVvPBjgxX",
                "content-type"=>"application/xml;charset=ISO-8859-1",
                "date"=>"Wed, 23 May 2007 09:40:16 GMT",
                "x-amz-request-id"=>"B183FA7AB5FBB4DD",
                "server"=>"AmazonS3",
                "transfer-encoding"=>"chunked"},
   :object  => "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<AccessControlPolicy xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\"><Owner>
                <ID>16144ab2929314cc309ffe736daa2b264357476c7fea6efb2c3347ac3ab2792a</ID><DisplayName>root</DisplayName></Owner>
                <AccessControlList><Grant><Grantee xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:type=\"CanonicalUser\"><ID>
                16144ab2929314cc309ffe736daa2b264357476c7fea6efb2c3347ac3ab2792a</ID><DisplayName>root</DisplayName></Grantee>
                <Permission>FULL_CONTROL</Permission></Grant></AccessControlList></AccessControlPolicy>" }
# File lib/s3/right_s3_interface.rb, line 683
def get_acl(bucket, key='', headers={})
  key = key.blank? ? '' : "/#{CGI::escape key}"
  req_hash = generate_rest_request('GET', headers.merge(:url=>"#{bucket}#{key}?acl"))
  request_info(req_hash, S3HttpResponseBodyParser.new) 
rescue
  on_exception
end
get_acl_parse(bucket, key='', headers={}) click to toggle source

Retieves the ACL (access control policy) for a bucket or object. Returns a hash of {:owner, :grantees}

s3.get_acl_parse('my_awesome_bucket', 'log/curent/1.log') #=>

{ :grantees=>
  { "16...2a"=>
    { :display_name=>"root",
      :permissions=>["FULL_CONTROL"],
      :attributes=>
       { "xsi:type"=>"CanonicalUser",
         "xmlns:xsi"=>"http://www.w3.org/2001/XMLSchema-instance"}},
   "http://acs.amazonaws.com/groups/global/AllUsers"=>
     { :display_name=>"AllUsers",
       :permissions=>["READ"],
       :attributes=>
        { "xsi:type"=>"Group",
          "xmlns:xsi"=>"http://www.w3.org/2001/XMLSchema-instance"}}},
 :owner=>
   { :id=>"16..2a",
     :display_name=>"root"}}
# File lib/s3/right_s3_interface.rb, line 713
def get_acl_parse(bucket, key='', headers={})
  key = key.blank? ? '' : "/#{CGI::escape key}"
  req_hash = generate_rest_request('GET', headers.merge(:url=>"#{bucket}#{key}?acl"))
  acl = request_info(req_hash, S3AclParser.new(:logger => @logger))
  result = {}
  result[:owner]    = acl[:owner]
  result[:grantees] = {}
  acl[:grantees].each do |grantee|
    key = grantee[:id] || grantee[:uri]
    if result[:grantees].key?(key)
      result[:grantees][key][:permissions] << grantee[:permissions]
    else
      result[:grantees][key] = 
        { :display_name => grantee[:display_name] || grantee[:uri].to_s[/[^\/]*$/],
          :permissions  => grantee[:permissions].to_a,
          :attributes   => grantee[:attributes] }
    end
  end
  result
rescue
  on_exception
end
get_bucket_acl(bucket, headers={}) click to toggle source

Retieves the ACL (access control policy) for a bucket. Returns a hash of headers and xml doc with ACL data.

# File lib/s3/right_s3_interface.rb, line 746
def get_bucket_acl(bucket, headers={})
  return get_acl(bucket, '', headers)
rescue
  on_exception
end
get_logging_parse(params) click to toggle source

Retrieves the logging configuration for a bucket. Returns a hash of {:enabled, :targetbucket, :targetprefix}

s3.interface.get_logging_parse(:bucket => "asset_bucket")

=> {:enabled=>true, :targetbucket=>"mylogbucket", :targetprefix=>"loggylogs/"}
# File lib/s3/right_s3_interface.rb, line 229
def get_logging_parse(params)
  AwsUtils.mandatory_arguments([:bucket], params)
  AwsUtils.allow_only([:bucket, :headers], params)
  params[:headers] = {} unless params[:headers]
  req_hash = generate_rest_request('GET', params[:headers].merge(:url=>"#{params[:bucket]}?logging"))
  request_info(req_hash, S3LoggingParser.new)
rescue
  on_exception
end
get_object(bucket, key, headers={}) click to toggle source

Retrieves object data only (headers are omitted). Returns string or an exception.

s3.get('my_awesome_bucket', 'log/curent/1.log') #=> 'Ola-la!'
# File lib/s3/right_s3_interface.rb, line 806
def get_object(bucket, key, headers={})
  get(bucket, key, headers)[:object]
rescue
  on_exception
end
head(bucket, key, headers={}) click to toggle source

Retrieves object metadata. Returns a hash of http_response_headers.

s3.head('my_awesome_bucket', 'log/curent/1.log') #=>
  {"last-modified"     => "Wed, 23 May 2007 09:08:04 GMT", 
   "content-type"      => "", 
   "etag"              => "\"000000000096f4ee74bc4596443ef2a4\"", 
   "date"              => "Wed, 23 May 2007 09:08:03 GMT", 
   "x-amz-id-2"        => "ZZZZZZZZZZZZZZZZZZZZ1HJXZoehfrS4QxcxTdNGldR7w/FVqblP50fU8cuIMLiu", 
   "x-amz-meta-family" => "Woho556!",
   "x-amz-request-id"  => "0000000C246D770C", 
   "server"            => "AmazonS3", 
   "content-length"    => "7"}
# File lib/s3/right_s3_interface.rb, line 601
def head(bucket, key, headers={})
  req_hash = generate_rest_request('HEAD', headers.merge(:url=>"#{bucket}/#{CGI::escape key}"))
  request_info(req_hash, S3HttpResponseHeadParser.new)
rescue
  on_exception
end
incrementally_list_bucket(bucket, options={}, headers={}, &block) click to toggle source

Incrementally list the contents of a bucket. Yields the following hash to a block:

s3.incrementally_list_bucket('my_awesome_bucket', { 'prefix'=>'t', 'marker'=>'', 'max-keys'=>5, delimiter=>'' }) yields  
 {
   :name => 'bucketname',
   :prefix => 'subfolder/',
   :marker => 'fileN.jpg',
   :max_keys => 234,
   :delimiter => '/',
   :is_truncated => true,
   :next_marker => 'fileX.jpg',
   :contents => [
     { :key => "file1",
       :last_modified => "2007-05-18T07:00:59.000Z",
       :e_tag => "000000000059075b964b07152d234b70",
       :size => 3,
       :storage_class => "STANDARD",
       :owner_id => "00000000009314cc309ffe736daa2b264357476c7fea6efb2c3347ac3ab2792a",
       :owner_display_name => "root"
     }, { :key, ...}, ... {:key, ...}
   ]
   :common_prefixes => [
     "prefix1",
     "prefix2",
     ...,
     "prefixN"
   ]
 }
# File lib/s3/right_s3_interface.rb, line 317
def incrementally_list_bucket(bucket, options={}, headers={}, &block)
  internal_options = options.symbolize_keys
  begin 
    internal_bucket = bucket.dup
    internal_bucket  += '?'+internal_options.map{|k, v| "#{k.to_s}=#{CGI::escape v.to_s}"}.join('&') unless internal_options.blank?
    req_hash = generate_rest_request('GET', headers.merge(:url=>internal_bucket))
    response = request_info(req_hash, S3ImprovedListBucketParser.new(:logger => @logger))
    there_are_more_keys = response[:is_truncated]
    if(there_are_more_keys)
      internal_options[:marker] = decide_marker(response)
      total_results = response[:contents].length + response[:common_prefixes].length
      internal_options[:'max-keys'] ? (internal_options[:'max-keys'] -= total_results) : nil 
    end
    yield response
  end while there_are_more_keys && under_max_keys(internal_options)
  true
rescue
  on_exception
end
is_dns_bucket?(bucket_name) click to toggle source

docs.amazonwebservices.com/AmazonS3/2006-03-01/index.html?BucketRestrictions.html

# File lib/s3/right_s3_interface.rb, line 105
def is_dns_bucket?(bucket_name)
  bucket_name = bucket_name.to_s
  return nil unless (3..63) === bucket_name.size
  bucket_name.split('.').each do |component|
    return nil unless component[/^[a-z0-9]([a-z0-9-]*[a-z0-9])?$/]
  end
  true
end
list_all_my_buckets(headers={}) click to toggle source

Returns an array of customer's buckets. Each item is a hash.

s3.list_all_my_buckets #=> 
  [{:owner_id           => "00000000009314cc309ffe736daa2b264357476c7fea6efb2c3347ac3ab2792a",
    :owner_display_name => "root",
    :name               => "bucket_name",
    :creation_date      => "2007-04-19T18:47:43.000Z"}, ..., {...}]
# File lib/s3/right_s3_interface.rb, line 181
def list_all_my_buckets(headers={})
  req_hash = generate_rest_request('GET', headers.merge(:url=>''))
  request_info(req_hash, S3ListAllMyBucketsParser.new(:logger => @logger))
rescue
  on_exception
end
list_bucket(bucket, options={}, headers={}) click to toggle source

Returns an array of bucket's keys. Each array item (key data) is a hash.

s3.list_bucket('my_awesome_bucket', { 'prefix'=>'t', 'marker'=>'', 'max-keys'=>5, delimiter=>'' }) #=>
  [{:key                => "test1",
    :last_modified      => "2007-05-18T07:00:59.000Z",
    :owner_id           => "00000000009314cc309ffe736daa2b264357476c7fea6efb2c3347ac3ab2792a",
    :owner_display_name => "root",
    :e_tag              => "000000000059075b964b07152d234b70",
    :storage_class      => "STANDARD",
    :size               => 3,
    :service=> {'is_truncated' => false,
                'prefix'       => "t",
                'marker'       => "",
                'name'         => "my_awesome_bucket",
                'max-keys'     => "5"}, ..., {...}]
# File lib/s3/right_s3_interface.rb, line 282
def list_bucket(bucket, options={}, headers={})
  bucket  += '?'+options.map{|k, v| "#{k.to_s}=#{CGI::escape v.to_s}"}.join('&') unless options.blank?
  req_hash = generate_rest_request('GET', headers.merge(:url=>bucket))
  request_info(req_hash, S3ListBucketParser.new(:logger => @logger))
rescue
  on_exception
end
move(src_bucket, src_key, dest_bucket, dest_key=nil, directive=:copy, headers={}) click to toggle source

Move an object.

directive: :copy    - copy meta-headers from source (default value)
           :replace - replace meta-headers by passed ones

# move bucket1/key1 to bucket1/key2
s3.move('bucket1', 'key1', 'bucket1', 'key2') #=> {:e_tag=>"\"e8b...8d\"", :last_modified=>"2008-05-11T10:27:22.000Z"}

# move bucket1/key1 to bucket2/key2 with new meta-headers assignment
s3.copy('bucket1', 'key1', 'bucket2', 'key2', :replace, 'x-amz-meta-family'=>'Woho555!') #=> {:e_tag=>"\"e8b...8d\"", :last_modified=>"2008-05-11T10:28:22.000Z"}
# File lib/s3/right_s3_interface.rb, line 652
def move(src_bucket, src_key, dest_bucket, dest_key=nil, directive=:copy, headers={})
  copy_result = copy(src_bucket, src_key, dest_bucket, dest_key, directive, headers)
  # delete an original key if it differs from a destination one
  delete(src_bucket, src_key) unless src_bucket == dest_bucket && src_key == dest_key
  copy_result
end
put(bucket, key, data=nil, headers={}) click to toggle source

Saves object to Amazon. Returns true or an exception. Any header starting with AMAZON_METADATA_PREFIX is considered user metadata. It will be stored with the object and returned when you retrieve the object. The total size of the HTTP request, not including the body, must be less than 4 KB.

s3.put('my_awesome_bucket', 'log/current/1.log', 'Ola-la!', 'x-amz-meta-family'=>'Woho556!') #=> true

This method is capable of 'streaming' uploads; that is, it can upload data from a file or other IO object without first reading all the data into memory. This is most useful for large PUTs - it is difficult to read a 2 GB file entirely into memory before sending it to S3. To stream an upload, pass an object that responds to 'read' (like the read method of IO) and to either 'lstat' or 'size'. For files, this means streaming is enabled by simply making the call:

s3.put(bucket_name, 'S3keyname.forthisfile',  File.open('localfilename.dat'))

If the IO object you wish to stream from responds to the read method but doesn't implement lstat or size, you can extend the object dynamically to implement these methods, or define your own class which defines these methods. Be sure that your class returns 'nil' from read() after having read 'size' bytes. Otherwise S3 will drop the socket after 'Content-Length' bytes have been uploaded, and HttpConnection will interpret this as an error.

This method now supports very large PUTs, where very large is > 2 GB.

For Win32 users: Files and IO objects should be opened in binary mode. If a text mode IO object is passed to PUT, it will be converted to binary mode.

# File lib/s3/right_s3_interface.rb, line 392
def put(bucket, key, data=nil, headers={})
  # On Windows, if someone opens a file in text mode, we must reset it so
  # to binary mode for streaming to work properly
  if(data.respond_to?(:binmode))
    data.binmode
  end
  if (data.respond_to?(:lstat) && data.lstat.size >= USE_100_CONTINUE_PUT_SIZE) ||
     (data.respond_to?(:size)  && data.size       >= USE_100_CONTINUE_PUT_SIZE)
    headers['expect'] = '100-continue'
  end
  req_hash = generate_rest_request('PUT', headers.merge(:url=>"#{bucket}/#{CGI::escape key}", :data=>data))
  request_info(req_hash, RightHttp2xxParser.new)
rescue
  on_exception
end
put_acl(bucket, key, acl_xml_doc, headers={}) click to toggle source

Sets the ACL on a bucket or object.

# File lib/s3/right_s3_interface.rb, line 737
def put_acl(bucket, key, acl_xml_doc, headers={})
  key = key.blank? ? '' : "/#{CGI::escape key}"
  req_hash = generate_rest_request('PUT', headers.merge(:url=>"#{bucket}#{key}?acl", :data=>acl_xml_doc))
  request_info(req_hash, S3HttpResponseBodyParser.new)
rescue
  on_exception
end
put_bucket_acl(bucket, acl_xml_doc, headers={}) click to toggle source

Sets the ACL on a bucket only.

# File lib/s3/right_s3_interface.rb, line 753
def put_bucket_acl(bucket, acl_xml_doc, headers={})
  return put_acl(bucket, '', acl_xml_doc, headers)
rescue
  on_exception
end
put_logging(params) click to toggle source

Sets logging configuration for a bucket from the XML configuration document.

params:
 :bucket
 :xmldoc
# File lib/s3/right_s3_interface.rb, line 243
def put_logging(params)  
  AwsUtils.mandatory_arguments([:bucket,:xmldoc], params)
  AwsUtils.allow_only([:bucket,:xmldoc, :headers], params)
  params[:headers] = {} unless params[:headers]
  req_hash = generate_rest_request('PUT', params[:headers].merge(:url=>"#{params[:bucket]}?logging", :data => params[:xmldoc]))
  request_info(req_hash, S3TrueParser.new)
rescue
  on_exception
end
rename(src_bucket, src_key, dest_key, headers={}) click to toggle source

Rename an object.

# rename bucket1/key1 to bucket1/key2
s3.rename('bucket1', 'key1', 'key2') #=> {:e_tag=>"\"e8b...8d\"", :last_modified=>"2008-05-11T10:29:22.000Z"}
# File lib/s3/right_s3_interface.rb, line 664
def rename(src_bucket, src_key, dest_key, headers={})
  move(src_bucket, src_key, src_bucket, dest_key, :copy, headers)
end
retrieve_object(params, &block) click to toggle source

New experimental API for retrieving objects, introduced in RightAws 1.8.1. retrieve_object is similar in function to the older function get. It allows for optional verification of object md5 checksums on retrieval. Parameters are passed as hash entries and are checked for completeness as well as for spurious arguments.

If the optional :md5 argument is provided, retrieve_object verifies that the given md5 matches the md5 returned by S3. The :verified_md5 field in the response hash is set true or false depending on the outcome of this check. If no :md5 argument is given, :verified_md5 will be false in the response.

The optional argument of :headers allows the caller to specify arbitrary request header values. Mandatory arguments:

:bucket - the bucket in which the object is stored
:key    - the object address (or path) within the bucket

Optional arguments:

 :headers - hash of additional HTTP headers to include with the request
 :md5     - MD5 checksum against which to verify the retrieved object

s3.retrieve_object(:bucket => "foobucket", :key => "foo") 
  => {:verified_md5=>false, 
      :headers=>{"last-modified"=>"Mon, 29 Sep 2008 18:58:56 GMT", 
                 "x-amz-id-2"=>"2Aj3TDz6HP5109qly//18uHZ2a1TNHGLns9hyAtq2ved7wmzEXDOPGRHOYEa3Qnp", 
                 "content-type"=>"", 
                 "etag"=>"\"a507841b1bc8115094b00bbe8c1b2954\"", 
                 "date"=>"Tue, 30 Sep 2008 00:52:44 GMT", 
                 "x-amz-request-id"=>"EE4855DE27A2688C", 
                 "server"=>"AmazonS3", 
                 "content-length"=>"10"}, 
      :object=>"polemonium"}

s3.retrieve_object(:bucket => "foobucket", :key => "foo", :md5=>'a507841b1bc8115094b00bbe8c1b2954') 
  => {:verified_md5=>true, 
      :headers=>{"last-modified"=>"Mon, 29 Sep 2008 18:58:56 GMT", 
                 "x-amz-id-2"=>"mLWQcI+VuKVIdpTaPXEo84g0cz+vzmRLbj79TS8eFPfw19cGFOPxuLy4uGYVCvdH", 
                 "content-type"=>"", "etag"=>"\"a507841b1bc8115094b00bbe8c1b2954\"", 
                 "date"=>"Tue, 30 Sep 2008 00:53:08 GMT", 
                 "x-amz-request-id"=>"6E7F317356580599", 
                 "server"=>"AmazonS3", 
                 "content-length"=>"10"}, 
      :object=>"polemonium"}

If a block is provided, yields incrementally to the block as the response is read. For large responses, this function is ideal as the response can be 'streamed'. The hash containing header fields is still returned.

# File lib/s3/right_s3_interface.rb, line 563
def retrieve_object(params, &block)
  AwsUtils.mandatory_arguments([:bucket, :key], params)
  AwsUtils.allow_only([:bucket, :key, :headers, :md5], params)
  params[:headers] = {} unless params[:headers]
  req_hash = generate_rest_request('GET', params[:headers].merge(:url=>"#{params[:bucket]}/#{CGI::escape params[:key]}"))
  resp = request_info(req_hash, S3HttpResponseBodyParser.new, &block)
  resp[:verified_md5] = false
  if(params[:md5] && (resp[:headers]['etag'].gsub(/\"/,'') == params[:md5]))
    resp[:verified_md5] = true
  end
  resp
rescue
  on_exception
end
retrieve_object_and_verify(params, &block) click to toggle source

Identical in function to retrieve_object, but requires verification that the returned ETag is identical to the checksum passed in by the user as the 'md5' argument. If the check passes, returns the response metadata with the "verified_md5" field set true. Raises an exception if the checksums conflict. This call is implemented as a wrapper around retrieve_object and the user may gain different semantics by creating a custom wrapper.

# File lib/s3/right_s3_interface.rb, line 581
def retrieve_object_and_verify(params, &block)
  AwsUtils.mandatory_arguments([:md5], params)
  resp = retrieve_object(params, &block)
  return resp if resp[:verified_md5]
  raise AwsError.new("Retrieved object failed MD5 checksum verification: #{resp.inspect}")
end
store_object(params) click to toggle source

New experimental API for uploading objects, introduced in RightAws 1.8.1. store_object is similar in function to the older function put, but returns the full response metadata. It also allows for optional verification of object md5 checksums on upload. Parameters are passed as hash entries and are checked for completeness as well as for spurious arguments. The hash of the response headers contains useful information like the Amazon request ID and the object ETag (MD5 checksum).

If the optional :md5 argument is provided, store_object verifies that the given md5 matches the md5 returned by S3. The :verified_md5 field in the response hash is set true or false depending on the outcome of this check. If no :md5 argument is given, :verified_md5 will be false in the response.

The optional argument of :headers allows the caller to specify arbitrary request header values.

s3.store_object(:bucket => "foobucket", :key => "foo", :md5 => "a507841b1bc8115094b00bbe8c1b2954", :data => "polemonium" )

=> {"x-amz-id-2"=>"SVsnS2nfDaR+ixyJUlRKM8GndRyEMS16+oZRieamuL61pPxPaTuWrWtlYaEhYrI/", 
    "etag"=>"\"a507841b1bc8115094b00bbe8c1b2954\"", 
    "date"=>"Mon, 29 Sep 2008 18:57:46 GMT", 
    :verified_md5=>true, 
    "x-amz-request-id"=>"63916465939995BA", 
    "server"=>"AmazonS3", 
    "content-length"=>"0"}

s3.store_object(:bucket => "foobucket", :key => "foo", :data => "polemonium" )

=> {"x-amz-id-2"=>"MAt9PLjgLX9UYJ5tV2fI/5dBZdpFjlzRVpWgBDpvZpl+V+gJFcBMW2L+LBstYpbR", 
    "etag"=>"\"a507841b1bc8115094b00bbe8c1b2954\"", 
    "date"=>"Mon, 29 Sep 2008 18:58:56 GMT", 
    :verified_md5=>false, 
    "x-amz-request-id"=>"3B25A996BC2CDD3B", 
    "server"=>"AmazonS3", 
    "content-length"=>"0"}
# File lib/s3/right_s3_interface.rb, line 438
def store_object(params)
  AwsUtils.allow_only([:bucket, :key, :data, :headers, :md5], params)
  AwsUtils.mandatory_arguments([:bucket, :key, :data], params)
  params[:headers] = {} unless params[:headers]
      
  params[:data].binmode if(params[:data].respond_to?(:binmode)) # On Windows, if someone opens a file in text mode, we must reset it to binary mode for streaming to work properly
  if (params[:data].respond_to?(:lstat) && params[:data].lstat.size >= USE_100_CONTINUE_PUT_SIZE) ||
     (params[:data].respond_to?(:size)  && params[:data].size       >= USE_100_CONTINUE_PUT_SIZE)
    params[:headers]['expect'] = '100-continue'
  end
  
  req_hash = generate_rest_request('PUT', params[:headers].merge(:url=>"#{params[:bucket]}/#{CGI::escape params[:key]}", :data=>params[:data]))
  resp = request_info(req_hash, S3HttpResponseHeadParser.new)
  if(params[:md5])
    resp[:verified_md5] = (resp['etag'].gsub(/\"/, '') == params[:md5]) ? true : false
  else
    resp[:verified_md5] = false
  end
  resp
rescue
  on_exception
end
store_object_and_verify(params) click to toggle source

Identical in function to store_object, but requires verification that the returned ETag is identical to the checksum passed in by the user as the 'md5' argument. If the check passes, returns the response metadata with the "verified_md5" field set true. Raises an exception if the checksums conflict. This call is implemented as a wrapper around store_object and the user may gain different semantics by creating a custom wrapper.

s3.store_object_and_verify(:bucket => "foobucket", :key => "foo", :md5 => "a507841b1bc8115094b00bbe8c1b2954", :data => "polemonium" )

=> {"x-amz-id-2"=>"IZN3XsH4FlBU0+XYkFTfHwaiF1tNzrm6dIW2EM/cthKvl71nldfVC0oVQyydzWpb", 
    "etag"=>"\"a507841b1bc8115094b00bbe8c1b2954\"", 
    "date"=>"Mon, 29 Sep 2008 18:38:32 GMT", 
    :verified_md5=>true, 
    "x-amz-request-id"=>"E8D7EA4FE00F5DF7", 
    "server"=>"AmazonS3", 
    "content-length"=>"0"}

s3.store_object_and_verify(:bucket => "foobucket", :key => "foo", :md5 => "a507841b1bc8115094b00bbe8c1b2953", :data => "polemonium" )

RightAws::AwsError: Uploaded object failed MD5 checksum verification: {"x-amz-id-2"=>"HTxVtd2bf7UHHDn+WzEH43MkEjFZ26xuYvUzbstkV6nrWvECRWQWFSx91z/bl03n", 
                                                                       "etag"=>"\"a507841b1bc8115094b00bbe8c1b2954\"", 
                                                                       "date"=>"Mon, 29 Sep 2008 18:38:41 GMT", 
                                                                       :verified_md5=>false, 
                                                                       "x-amz-request-id"=>"0D7ADE09F42606F2", 
                                                                       "server"=>"AmazonS3", 
                                                                       "content-length"=>"0"}
# File lib/s3/right_s3_interface.rb, line 482
def store_object_and_verify(params)
  AwsUtils.mandatory_arguments([:md5], params)
  r = store_object(params)
  r[:verified_md5] ? (return r) : (raise AwsError.new("Uploaded object failed MD5 checksum verification: #{r.inspect}"))
end

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