Class: Aliyun::OSS::Protocol

Inherits:
Object
  • Object
show all
Includes:
Common::Logging
Defined in:
lib/aliyun/oss/protocol.rb

Overview

Protocol implement the OSS Open API which is low-level. User should refer to Client for normal use.

Constant Summary collapse

STREAM_CHUNK_SIZE = 
16 * 1024
CALLBACK_HEADER = 
'x-oss-callback'

Constants included from Common::Logging

Common::Logging::DEFAULT_LOG_FILE, Common::Logging::MAX_NUM_LOG, Common::Logging::ROTATE_SIZE

Instance Method Summary collapse

Methods included from Common::Logging

#logger, set_log_file, set_log_level

Constructor Details

#initialize(config) ⇒ Protocol

Returns a new instance of Protocol.



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# File 'lib/aliyun/oss/protocol.rb', line 21

def initialize(config)
  @config = config
  @http = HTTP.new(config)
end

Instance Method Details

#abort_multipart_upload(bucket_name, object_name, txn_id) ⇒ Object

Note:

All the parts are discarded after abort. For some parts being uploaded while the abort happens, they may not be discarded. Call abort_multipart_upload several times for this situation.

Abort a multipart uploading transaction

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name

  • txn_id (String) —

    the upload id



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# File 'lib/aliyun/oss/protocol.rb', line 1158

def abort_multipart_upload(bucket_name, object_name, txn_id)
  logger.debug("Begin abort multipart upload, txn id: #{txn_id}")

  sub_res = {'uploadId' => txn_id}

  @http.delete(
    {:bucket => bucket_name, :object => object_name, :sub_res => sub_res})

  logger.debug("Done abort multipart: #{txn_id}.")
end

#append_object(bucket_name, object_name, position, opts = {}) {|HTTP::StreamWriter| ... } ⇒ Integer

Note:

  1. Can not append to a “Normal Object”

  2. The position must equal to the object’s size before append

  3. The :content_type is only used when the object is created

Append to an object of a bucket. Create an “Appendable Object” if the object does not exist. A block is required to provide the appending data.

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name

  • position (Integer) —

    the position to append

  • opts (Hash) (defaults to: {}) —

    Options

Options Hash (opts):

  • :content_type (String) —

    the HTTP Content-Type for the file, if not specified client will try to determine the type itself and fall back to HTTP::DEFAULT_CONTENT_TYPE if it fails to do so

  • :metas (Hash<Symbol, String>) —

    key-value pairs that serve as the object meta which will be stored together with the object

Yields:

  • (HTTP::StreamWriter) —

    a stream writer is yielded to the caller to which it can write chunks of data streamingly

Returns:

  • (Integer) —

    next position to append



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# File 'lib/aliyun/oss/protocol.rb', line 564

def append_object(bucket_name, object_name, position, opts = {}, &block)
  logger.debug("Begin append object, bucket: #{bucket_name}, object: "\
                "#{object_name}, position: #{position}, options: #{opts}")

  sub_res = {'append' => nil, 'position' => position}
  headers = {'Content-Type' => opts[:content_type]}
  (opts[:metas] || {})
    .each { |k, v| headers["x-oss-meta-#{k.to_s}"] = v.to_s }

  r = @http.post(
    {:bucket => bucket_name, :object => object_name, :sub_res => sub_res},
    {:headers => headers, :body => HTTP::StreamPayload.new(&block)})

  logger.debug('Done append object')

  wrap(r.headers[:x_oss_next_append_position], &:to_i) || -1
end

#batch_delete_objects(bucket_name, object_names, opts = {}) ⇒ Array<String>

Batch delete objects

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_names (Enumerator<String>) —

    the object names

  • opts (Hash) (defaults to: {}) —

    options

Options Hash (opts):

  • :quiet (Boolean) —

    indicates whether the server should return the delete result of the objects

  • :encoding (String) —

    the encoding type for object key in the response body, only KeyEncoding::URL is supported now

Returns:

  • (Array<String>) —

    object names that have been successfully deleted or empty if :quiet is true



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# File 'lib/aliyun/oss/protocol.rb', line 894

def batch_delete_objects(bucket_name, object_names, opts = {})
  logger.debug("Begin batch delete object, bucket: #{bucket_name}, "\
               "objects: #{object_names}, options: #{opts}")

  sub_res = {'delete' => nil}

  # It may have invisible chars in object key which will corrupt
  # libxml. So we're constructing xml body manually here.
  body = '<?xml version="1.0"?>'
  body << '<Delete>'
  body << '<Quiet>' << (opts[:quiet]? true : false).to_s << '</Quiet>'
  object_names.each { |k|
    body << '<Object><Key>' << k << '</Key></Object>'
  }
  body << '</Delete>'

  query = {}
  query['encoding-type'] = opts[:encoding] if opts[:encoding]

  r = @http.post(
       {:bucket => bucket_name, :sub_res => sub_res},
       {:query => query, :body => body})

  deleted = []
  unless opts[:quiet]
    doc = parse_xml(r.body)
    encoding = get_node_text(doc.root, 'EncodingType')
    doc.css("Deleted").map do |n|
      deleted << get_node_text(n, 'Key') { |x| decode_key(x, encoding) }
    end
  end

  logger.debug("Done delete object")

  deleted
end

#complete_multipart_upload(bucket_name, object_name, txn_id, parts, callback = nil) ⇒ Object

Complete a multipart uploading transaction

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name

  • txn_id (String) —

    the upload id

  • parts (Array<Multipart::Part>) —

    all the parts in this transaction

  • callback (Callback) (defaults to: nil) —

    the HTTP callback performed by OSS after this operation succeeds



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# File 'lib/aliyun/oss/protocol.rb', line 1117

def complete_multipart_upload(
      bucket_name, object_name, txn_id, parts, callback = nil)
  logger.debug("Begin complete multipart upload, "\
               "txn id: #{txn_id}, parts: #{parts.map(&:to_s)}")

  sub_res = {'uploadId' => txn_id}
  headers = {}
  headers[CALLBACK_HEADER] = callback.serialize if callback

  body = Nokogiri::XML::Builder.new do |xml|
    xml.CompleteMultipartUpload {
      parts.each do |p|
        xml.Part {
          xml.PartNumber p.number
          xml.ETag p.etag
        }
      end
    }
  end.to_xml

  r = @http.post(
    {:bucket => bucket_name, :object => object_name, :sub_res => sub_res},
    {:headers => headers, :body => body})

  if r.code == 203
    e = CallbackError.new(r)
    logger.error(e.to_s)
    raise e
  end

  logger.debug("Done complete multipart upload: #{txn_id}.")
end

#copy_object(bucket_name, src_object_name, dst_object_name, opts = {}) ⇒ Hash

Copy an object in the bucket. The source object and the dest object must be in the same bucket.

Parameters:

  • bucket_name (String) —

    the bucket name

  • src_object_name (String) —

    the source object name

  • dst_object_name (String) —

    the dest object name

  • opts (Hash) (defaults to: {}) —

    options

Options Hash (opts):

  • :acl (String) —

    specify the dest object’s ACL. See ACL

  • :meta_directive (String) —

    specify what to do with the object’s meta: copy or replace. See MetaDirective

  • :content_type (String) —

    the HTTP Content-Type for the file, if not specified client will try to determine the type itself and fall back to HTTP::DEFAULT_CONTENT_TYPE if it fails to do so

  • :metas (Hash<Symbol, String>) —

    key-value pairs that serve as the object meta which will be stored together with the object

  • :condition (Hash) —

    preconditions to get the object. See #get_object

Returns:

  • (Hash) —

    the copy result

    • :etag [String] the etag of the dest object

    • :last_modified [Time] the last modification time of the dest object



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# File 'lib/aliyun/oss/protocol.rb', line 835

def copy_object(bucket_name, src_object_name, dst_object_name, opts = {})
  logger.debug("Begin copy object, bucket: #{bucket_name}, "\
               "source object: #{src_object_name}, dest object: "\
               "#{dst_object_name}, options: #{opts}")

  headers = {
    'x-oss-copy-source' =>
      @http.get_resource_path(bucket_name, src_object_name),
    'Content-Type' => opts[:content_type]
  }
  (opts[:metas] || {})
    .each { |k, v| headers["x-oss-meta-#{k.to_s}"] = v.to_s }

  {
    :acl => 'x-oss-object-acl',
    :meta_directive => 'x-oss-metadata-directive'
  }.each { |k, v| headers[v] = opts[k] if opts[k] }

  headers.merge!(get_copy_conditions(opts[:condition])) if opts[:condition]

  r = @http.put(
    {:bucket => bucket_name, :object => dst_object_name},
    {:headers => headers})

  doc = parse_xml(r.body)
  copy_result = {
    :last_modified => get_node_text(
      doc.root, 'LastModified') { |x| Time.parse(x) },
    :etag => get_node_text(doc.root, 'ETag')
  }.reject { |_, v| v.nil? }

  logger.debug("Done copy object")

  copy_result
end

#create_bucket(name, opts = {}) ⇒ Object

Create a bucket

Examples:

oss-cn-hangzhou

Parameters:

  • name (String) —

    the bucket name

  • opts (Hash) (defaults to: {}) —

    options

Options Hash (opts):

  • :location (String) —

    the region where the bucket is located



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# File 'lib/aliyun/oss/protocol.rb', line 97

def create_bucket(name, opts = {})
  logger.info("Begin create bucket, name: #{name}, opts: #{opts}")

  location = opts[:location]
  body = nil
  if location
    builder = Nokogiri::XML::Builder.new do |xml|
      xml.CreateBucketConfiguration {
        xml.LocationConstraint location
      }
    end
    body = builder.to_xml
  end

  @http.put({:bucket => name}, {:body => body})

  logger.info("Done create bucket")
end

#delete_bucket(name) ⇒ Object

Note:

it will fails if the bucket is not empty (it contains objects)

Delete a bucket

Parameters:

  • name (String) —

    the bucket name



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# File 'lib/aliyun/oss/protocol.rb', line 489

def delete_bucket(name)
  logger.info("Begin delete bucket: #{name}")

  @http.delete({:bucket => name})

  logger.info("Done delete bucket")
end

#delete_bucket_cors(name) ⇒ Object

Note:

this will delete all CORS rules of this bucket

Delete all bucket CORS rules

Parameters:

  • name (String) —

    the bucket name



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# File 'lib/aliyun/oss/protocol.rb', line 475

def delete_bucket_cors(name)
  logger.info("Begin delete bucket cors, bucket: #{name}")

  sub_res = {'cors' => nil}

  @http.delete({:bucket => name, :sub_res => sub_res})

  logger.info("Done delete bucket cors")
end

#delete_bucket_lifecycle(name) ⇒ Object

Note:

this will delete all lifecycle rules

Delete all lifecycle rules on the bucket

Parameters:

  • name (String) —

    the bucket name



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# File 'lib/aliyun/oss/protocol.rb', line 400

def delete_bucket_lifecycle(name)
  logger.info("Begin delete bucket lifecycle, name: #{name}")

  sub_res = {'lifecycle' => nil}
  @http.delete({:bucket => name, :sub_res => sub_res})

  logger.info("Done delete bucket lifecycle")
end

#delete_bucket_logging(name) ⇒ Object

Delete bucket logging settings, a.k.a. disable bucket logging

Parameters:

  • name (String) —

    the bucket name



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# File 'lib/aliyun/oss/protocol.rb', line 205

def delete_bucket_logging(name)
  logger.info("Begin delete bucket logging, name: #{name}")

  sub_res = {'logging' => nil}
  @http.delete({:bucket => name, :sub_res => sub_res})

  logger.info("Done delete bucket logging")
end

#delete_bucket_website(name) ⇒ Object

Delete bucket website settings

Parameters:

  • name (String) —

    the bucket name



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# File 'lib/aliyun/oss/protocol.rb', line 269

def delete_bucket_website(name)
  logger.info("Begin delete bucket website, name: #{name}")

  sub_res = {'website' => nil}
  @http.delete({:bucket => name, :sub_res => sub_res})

  logger.info("Done delete bucket website")
end

#delete_object(bucket_name, object_name) ⇒ Object

Delete an object from the bucket

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name



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# File 'lib/aliyun/oss/protocol.rb', line 874

def delete_object(bucket_name, object_name)
  logger.debug("Begin delete object, bucket: #{bucket_name}, "\
               "object:  #{object_name}")

  @http.delete({:bucket => bucket_name, :object => object_name})

  logger.debug("Done delete object")
end

#get_access_key_id ⇒ String

Get user’s access key id

Returns:

  • (String) —

    the access key id



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# File 'lib/aliyun/oss/protocol.rb', line 1331

def get_access_key_id
  @config.access_key_id
end

#get_bucket_acl(name) ⇒ String

Get bucket acl

Parameters:

  • name (String) —

    the bucket name

Returns:

  • (String) —

    the acl of this bucket



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# File 'lib/aliyun/oss/protocol.rb', line 135

def get_bucket_acl(name)
  logger.info("Begin get bucket acl, name: #{name}")

  sub_res = {'acl' => nil}
  r = @http.get({:bucket => name, :sub_res => sub_res})

  doc = parse_xml(r.body)
  acl = get_node_text(doc.at_css("AccessControlList"), 'Grant')
  logger.info("Done get bucket acl")

  acl
end

#get_bucket_cors(name) ⇒ Array<OSS::CORSRule] the CORS rules

Get bucket CORS rules

Parameters:

  • name (String) —

    the bucket name

Returns:



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# File 'lib/aliyun/oss/protocol.rb', line 443

def get_bucket_cors(name)
  logger.info("Begin get bucket cors, bucket: #{name}")

  sub_res = {'cors' => nil}
  r = @http.get({:bucket => name, :sub_res => sub_res})

  doc = parse_xml(r.body)
  rules = []

  doc.css("CORSRule").map do |n|
    allowed_origins = n.css("AllowedOrigin").map(&:text)
    allowed_methods = n.css("AllowedMethod").map(&:text)
    allowed_headers = n.css("AllowedHeader").map(&:text)
    expose_headers = n.css("ExposeHeader").map(&:text)
    max_age_seconds = get_node_text(n, 'MaxAgeSeconds', &:to_i)

    rules << CORSRule.new(
      :allowed_origins => allowed_origins,
      :allowed_methods => allowed_methods,
      :allowed_headers => allowed_headers,
      :expose_headers => expose_headers,
      :max_age_seconds => max_age_seconds)
  end

  logger.info("Done get bucket cors")

  rules
end

#get_bucket_lifecycle(name) ⇒ Array<OSS::LifeCycleRule>

Get bucket lifecycle settings

Parameters:

  • name (String) —

    the bucket name

Returns:



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# File 'lib/aliyun/oss/protocol.rb', line 370

def get_bucket_lifecycle(name)
  logger.info("Begin get bucket lifecycle, name: #{name}")

  sub_res = {'lifecycle' => nil}
  r = @http.get({:bucket => name, :sub_res => sub_res})

  doc = parse_xml(r.body)
  rules = doc.css("Rule").map do |n|
    days = n.at_css("Expiration Days")
    date = n.at_css("Expiration Date")

    if (days && date) || (!days && !date)
      fail ClientError, "We can only have one of Date and Days for expiry."
    end

    LifeCycleRule.new(
      :id => get_node_text(n, 'ID'),
      :prefix => get_node_text(n, 'Prefix'),
      :enable => get_node_text(n, 'Status') { |x| x == 'Enabled' },
      :expiry => days ? days.text.to_i : Date.parse(date.text)
    )
  end
  logger.info("Done get bucket lifecycle")

  rules
end

#get_bucket_logging(name) ⇒ BucketLogging

Get bucket logging settings

Parameters:

  • name (String) —

    the bucket name

Returns:



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# File 'lib/aliyun/oss/protocol.rb', line 182

def get_bucket_logging(name)
  logger.info("Begin get bucket logging, name: #{name}")

  sub_res = {'logging' => nil}
  r = @http.get({:bucket => name, :sub_res => sub_res})

  doc = parse_xml(r.body)
  opts = {:enable => false}

  logging_node = doc.at_css("LoggingEnabled")
  opts.update(
    :target_bucket => get_node_text(logging_node, 'TargetBucket'),
    :target_prefix => get_node_text(logging_node, 'TargetPrefix')
  )
  opts[:enable] = true if opts[:target_bucket]

  logger.info("Done get bucket logging")

  BucketLogging.new(opts)
end

#get_bucket_referer(name) ⇒ BucketReferer

Get bucket referer

Parameters:

  • name (String) —

    the bucket name

Returns:



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# File 'lib/aliyun/oss/protocol.rb', line 307

def get_bucket_referer(name)
  logger.info("Begin get bucket referer, name: #{name}")

  sub_res = {'referer' => nil}
  r = @http.get({:bucket => name, :sub_res => sub_res})

  doc = parse_xml(r.body)
  opts = {
    :allow_empty =>
      get_node_text(doc.root, 'AllowEmptyReferer', &:to_bool),
    :whitelist => doc.css("RefererList Referer").map(&:text)
  }

  logger.info("Done get bucket referer")

  BucketReferer.new(opts)
end

#get_bucket_website(name) ⇒ BucketWebsite

Get bucket website settings

Parameters:

  • name (String) —

    the bucket name

Returns:



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# File 'lib/aliyun/oss/protocol.rb', line 249

def get_bucket_website(name)
  logger.info("Begin get bucket website, name: #{name}")

  sub_res = {'website' => nil}
  r = @http.get({:bucket => name, :sub_res => sub_res})

  opts = {:enable => true}
  doc = parse_xml(r.body)
  opts.update(
    :index => get_node_text(doc.at_css('IndexDocument'), 'Suffix'),
    :error => get_node_text(doc.at_css('ErrorDocument'), 'Key')
  )

  logger.info("Done get bucket website")

  BucketWebsite.new(opts)
end

#get_object(bucket_name, object_name, opts = {}) {|String| ... } ⇒ OSS::Object

Note:

User can get the whole object or only part of it by specify the bytes range;

Note:

User can specify conditions to get the object like: if-modified-since, if-unmodified-since, if-match-etag, if-unmatch-etag. If the object to get fails to meet the conditions, it will not be returned;

Note:

User can indicate the server to rewrite the response headers such as content-type, content-encoding when get the object by specify the :rewrite options. The specified headers will be returned instead of the original property of the object.

Get an object from the bucket. A block is required to handle the object data chunks.

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name

  • opts (Hash) (defaults to: {}) —

    options

Options Hash (opts):

  • :range (Array<Integer>) —

    bytes range to get from the object, in the format: xx-yy

  • :condition (Hash) —

    preconditions to get the object

    • :if_modified_since (Time) get the object if its modified time is later than specified

    • :if_unmodified_since (Time) get the object if its unmodified time if earlier than specified

    • :if_match_etag (String) get the object if its etag match specified

    • :if_unmatch_etag (String) get the object if its etag doesn’t match specified

  • :rewrite (Hash) —

    response headers to rewrite

    • :content_type (String) the Content-Type header

    • :content_language (String) the Content-Language header

    • :expires (Time) the Expires header

    • :cache_control (String) the Cache-Control header

    • :content_disposition (String) the Content-Disposition header

    • :content_encoding (String) the Content-Encoding header

Yields:

  • (String) —

    it gives the data chunks of the object to the block

Returns:



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# File 'lib/aliyun/oss/protocol.rb', line 715

def get_object(bucket_name, object_name, opts = {}, &block)
  logger.debug("Begin get object, bucket: #{bucket_name}, "\
               "object: #{object_name}")

  range = opts[:range]
  conditions = opts[:condition]
  rewrites = opts[:rewrite]

  headers = {}
  headers['Range'] = get_bytes_range(range) if range
  headers.merge!(get_conditions(conditions)) if conditions

  sub_res = {}
  if rewrites
    [ :content_type,
      :content_language,
      :cache_control,
      :content_disposition,
      :content_encoding
    ].each do |k|
      key = "response-#{k.to_s.sub('_', '-')}"
      sub_res[key] = rewrites[k] if rewrites.key?(k)
    end
    sub_res["response-expires"] =
      rewrites[:expires].httpdate if rewrites.key?(:expires)
  end

  r = @http.get(
    {:bucket => bucket_name, :object => object_name,
     :sub_res => sub_res},
    {:headers => headers}
  ) { |chunk| yield chunk if block_given? }

  h = r.headers
  metas = {}
  meta_prefix = 'x_oss_meta_'
  h.select { |k, _| k.to_s.start_with?(meta_prefix) }
    .each { |k, v| metas[k.to_s.sub(meta_prefix, '')] = v.to_s }

  obj = Object.new(
    :key => object_name,
    :type => h[:x_oss_object_type],
    :size => wrap(h[:content_length], &:to_i),
    :etag => h[:etag],
    :metas => metas,
    :last_modified => wrap(h[:last_modified]) { |x| Time.parse(x) },
    :content_type => h[:content_type])

  logger.debug("Done get object")

  obj
end

#get_object_acl(bucket_name, object_name) ⇒ Object

Get object acl

return

the object’s acl. See ACL

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name



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# File 'lib/aliyun/oss/protocol.rb', line 953

def get_object_acl(bucket_name, object_name)
  logger.debug("Begin get object acl, bucket: #{bucket_name}, "\
               "object: #{object_name}")

  sub_res = {'acl' => nil}
  r = @http.get(
    {bucket: bucket_name, object: object_name, sub_res: sub_res})

  doc = parse_xml(r.body)
  acl = get_node_text(doc.at_css("AccessControlList"), 'Grant')

  logger.debug("Done get object acl")

  acl
end

#get_object_cors(bucket_name, object_name, origin, method, headers = []) ⇒ CORSRule

Note:

this is usually used by browser to make a “preflight”

Get object CORS rule

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name

  • origin (String) —

    the Origin of the reqeust

  • method (String) —

    the method to request access: Access-Control-Request-Method

  • headers (Array<String>) (defaults to: []) —

    the headers to request access: Access-Control-Request-Headers

Returns:

  • (CORSRule) —

    the CORS rule of the object



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# File 'lib/aliyun/oss/protocol.rb', line 979

def get_object_cors(bucket_name, object_name, origin, method, headers = [])
  logger.debug("Begin get object cors, bucket: #{bucket_name}, object: "\
               "#{object_name}, origin: #{origin}, method: #{method}, "\
               "headers: #{headers.join(',')}")

  h = {
    'Origin' => origin,
    'Access-Control-Request-Method' => method,
    'Access-Control-Request-Headers' => headers.join(',')
  }

  r = @http.options(
    {:bucket => bucket_name, :object => object_name},
    {:headers => h})

  logger.debug("Done get object cors")

  CORSRule.new(
    :allowed_origins => r.headers[:access_control_allow_origin],
    :allowed_methods => r.headers[:access_control_allow_methods],
    :allowed_headers => r.headers[:access_control_allow_headers],
    :expose_headers => r.headers[:access_control_expose_headers],
    :max_age_seconds => r.headers[:access_control_max_age]
  )
end

#get_object_meta(bucket_name, object_name, opts = {}) ⇒ OSS::Object

Note:

User can specify conditions to get the object like: if-modified-since, if-unmodified-since, if-match-etag, if-unmatch-etag. If the object to get fails to meet the conditions, it will not be returned.

Get the object meta rather than the whole object.

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name

  • opts (Hash) (defaults to: {}) —

    options

Options Hash (opts):

  • :condition (Hash) —

    preconditions to get the object meta. The same as #get_object

Returns:



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# File 'lib/aliyun/oss/protocol.rb', line 780

def get_object_meta(bucket_name, object_name, opts = {})
  logger.debug("Begin get object meta, bucket: #{bucket_name}, "\
               "object: #{object_name}, options: #{opts}")

  headers = {}
  headers.merge!(get_conditions(opts[:condition])) if opts[:condition]

  r = @http.head(
    {:bucket => bucket_name, :object => object_name},
    {:headers => headers})

  h = r.headers
  metas = {}
  meta_prefix = 'x_oss_meta_'
  h.select { |k, _| k.to_s.start_with?(meta_prefix) }
    .each { |k, v| metas[k.to_s.sub(meta_prefix, '')] = v.to_s }

  obj = Object.new(
    :key => object_name,
    :type => h[:x_oss_object_type],
    :size => wrap(h[:content_length], &:to_i),
    :etag => h[:etag],
    :metas => metas,
    :last_modified => wrap(h[:last_modified]) { |x| Time.parse(x) },
    :content_type => h[:content_type])

  logger.debug("Done get object meta")

  obj
end

#get_request_url(bucket, object = nil) ⇒ String

Get bucket/object url

Parameters:

  • bucket (String) —

    the bucket name

  • object (String) (defaults to: nil) —

    the bucket name

Returns:

  • (String) —

    url for the bucket/object



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# File 'lib/aliyun/oss/protocol.rb', line 1325

def get_request_url(bucket, object = nil)
  @http.get_request_url(bucket, object)
end

#initiate_multipart_upload(bucket_name, object_name, opts = {}) ⇒ String

Initiate a a multipart uploading transaction

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name

  • opts (Hash) (defaults to: {}) —

    options

Options Hash (opts):

  • :content_type (String) —

    the HTTP Content-Type for the file, if not specified client will try to determine the type itself and fall back to HTTP::DEFAULT_CONTENT_TYPE if it fails to do so

  • :metas (Hash<Symbol, String>) —

    key-value pairs that serve as the object meta which will be stored together with the object

Returns:



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# File 'lib/aliyun/oss/protocol.rb', line 1021

def initiate_multipart_upload(bucket_name, object_name, opts = {})
  logger.info("Begin initiate multipart upload, bucket: "\
              "#{bucket_name}, object: #{object_name}, options: #{opts}")

  sub_res = {'uploads' => nil}
  headers = {'Content-Type' => opts[:content_type]}
  (opts[:metas] || {})
    .each { |k, v| headers["x-oss-meta-#{k.to_s}"] = v.to_s }

  r = @http.post(
    {:bucket => bucket_name, :object => object_name,
     :sub_res => sub_res},
    {:headers => headers})

  doc = parse_xml(r.body)
  txn_id = get_node_text(doc.root, 'UploadId')

  logger.info("Done initiate multipart upload: #{txn_id}.")

  txn_id
end

#list_buckets(opts = {}) ⇒ Array<Bucket>, Hash

List all the buckets.

Parameters:

  • opts (Hash) (defaults to: {}) —

    options

Options Hash (opts):

  • :prefix (String) —

    return only those buckets prefixed with it if specified

  • :marker (String) —

    return buckets after where it indicates (exclusively). All buckets are sorted by name alphabetically

  • :limit (Integer) —

    return only the first N buckets if specified

Returns:

  • (Array<Bucket>, Hash) —

    the returned buckets and a hash including the next tokens, which includes:

    • :prefix [String] the prefix used

    • :delimiter [String] the delimiter used

    • :marker [String] the marker used

    • :limit [Integer] the limit used

    • :next_marker [String] marker to continue list buckets

    • :truncated [Boolean] whether there are more buckets to be returned



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# File 'lib/aliyun/oss/protocol.rb', line 44

def list_buckets(opts = {})
  logger.info("Begin list buckets, options: #{opts}")

  params = {
    'prefix' => opts[:prefix],
    'marker' => opts[:marker],
    'max-keys' => opts[:limit]
  }.reject { |_, v| v.nil? }

  r = @http.get( {}, {:query => params})
  doc = parse_xml(r.body)

  buckets = doc.css("Buckets Bucket").map do |node|
    Bucket.new(
      {
        :name => get_node_text(node, "Name"),
        :location => get_node_text(node, "Location"),
        :creation_time =>
          get_node_text(node, "CreationDate") { |t| Time.parse(t) }
      }, self
    )
  end

  more = {
    :prefix => 'Prefix',
    :limit => 'MaxKeys',
    :marker => 'Marker',
    :next_marker => 'NextMarker',
    :truncated => 'IsTruncated'
  }.reduce({}) { |h, (k, v)|
    value = get_node_text(doc.root, v)
    value.nil?? h : h.merge(k => value)
  }

  update_if_exists(
    more, {
      :limit => ->(x) { x.to_i },
      :truncated => ->(x) { x.to_bool }
    }
  )

  logger.info("Done list buckets, buckets: #{buckets}, more: #{more}")

  [buckets, more]
end

#list_multipart_uploads(bucket_name, opts = {}) ⇒ Array<Multipart::Transaction>, Hash

Get a list of all the on-going multipart uploading transactions. That is: thoses started and not aborted.

Parameters:

  • bucket_name (String) —

    the bucket name

  • opts (Hash) (defaults to: {}) —

    options:

Options Hash (opts):

  • :id_marker (String) —

    return only thoese transactions with txn id after :id_marker

  • :key_marker (String) —

    the object key marker for a multipart upload transaction.

    1. if :id_marker is not set, return only those transactions with object key after :key_marker;

    2. if :id_marker is set, return only thoese transactions with object key equals :key_marker and txn id after :id_marker

  • :prefix (String) —

    the prefix of the object key for a multipart upload transaction. if set only return those transactions with the object key prefixed with it

  • :encoding (String) —

    the encoding of object key in the response body. Only KeyEncoding::URL is supported now.

Returns:

  • (Array<Multipart::Transaction>, Hash) —

    the returned transactions and a hash including next tokens, which includes:

    • :prefix [String] the prefix used

    • :limit [Integer] the limit used

    • :id_marker [String] the upload id marker used

    • :next_id_marker [String] upload id marker to continue list multipart transactions

    • :key_marker [String] the object key marker used

    • :next_key_marker [String] object key marker to continue list multipart transactions

    • :truncated [Boolean] whether there are more transactions to be returned

    • :encoding [String] the object key encoding used



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# File 'lib/aliyun/oss/protocol.rb', line 1202

def list_multipart_uploads(bucket_name, opts = {})
  logger.debug("Begin list multipart uploads, "\
               "bucket: #{bucket_name}, opts: #{opts}")

  sub_res = {'uploads' => nil}
  params = {
    'prefix' => opts[:prefix],
    'upload-id-marker' => opts[:id_marker],
    'key-marker' => opts[:key_marker],
    'max-uploads' => opts[:limit],
    'encoding-type' => opts[:encoding]
  }.reject { |_, v| v.nil? }

  r = @http.get(
    {:bucket => bucket_name, :sub_res => sub_res},
    {:query => params})

  doc = parse_xml(r.body)
  encoding = get_node_text(doc.root, 'EncodingType')
  txns = doc.css("Upload").map do |node|
    Multipart::Transaction.new(
      :id => get_node_text(node, "UploadId"),
      :object => get_node_text(node, "Key") { |x| decode_key(x, encoding) },
      :bucket => bucket_name,
      :creation_time =>
        get_node_text(node, "Initiated") { |t| Time.parse(t) }
    )
  end || []

  more = {
    :prefix => 'Prefix',
    :limit => 'MaxUploads',
    :id_marker => 'UploadIdMarker',
    :next_id_marker => 'NextUploadIdMarker',
    :key_marker => 'KeyMarker',
    :next_key_marker => 'NextKeyMarker',
    :truncated => 'IsTruncated',
    :encoding => 'EncodingType'
  }.reduce({}) { |h, (k, v)|
    value = get_node_text(doc.root, v)
    value.nil?? h : h.merge(k => value)
  }

  update_if_exists(
    more, {
      :limit => ->(x) { x.to_i },
      :truncated => ->(x) { x.to_bool },
      :key_marker => ->(x) { decode_key(x, encoding) },
      :next_key_marker => ->(x) { decode_key(x, encoding) }
    }
  )

  logger.debug("Done list multipart transactions")

  [txns, more]
end

#list_objects(bucket_name, opts = {}) ⇒ Array<Objects>, Hash

List objects in a bucket.

Examples:

Assume we have the following objects:
   /foo/bar/obj1
   /foo/bar/obj2
   ...
   /foo/bar/obj9999999
   /foo/xxx/
use 'foo/' as the prefix, '/' as the delimiter, the common
prefixes we get are: '/foo/bar/', '/foo/xxx/'. They are
coincidentally the sub-directories under '/foo/'. Using
delimiter we avoid list all the objects whose number may be
large.

Parameters:

  • bucket_name (String) —

    the bucket name

  • opts (Hash) (defaults to: {}) —

    options

Options Hash (opts):

  • :prefix (String) —

    return only those buckets prefixed with it if specified

  • :marker (String) —

    return buckets after where it indicates (exclusively). All buckets are sorted by name alphabetically

  • :limit (Integer) —

    return only the first N buckets if specified

  • :delimiter (String) —

    the delimiter to get common prefixes of all objects

  • :encoding (String) —

    the encoding of object key in the response body. Only KeyEncoding::URL is supported now.

Returns:

  • (Array<Objects>, Hash) —

    the returned object and a hash including the next tokens, which includes:

    • :common_prefixes [String] the common prefixes returned

    • :prefix [String] the prefix used

    • :delimiter [String] the delimiter used

    • :marker [String] the marker used

    • :limit [Integer] the limit used

    • :next_marker [String] marker to continue list objects

    • :truncated [Boolean] whether there are more objects to be returned



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# File 'lib/aliyun/oss/protocol.rb', line 619

def list_objects(bucket_name, opts = {})
  logger.debug("Begin list object, bucket: #{bucket_name}, options: #{opts}")

  params = {
    'prefix' => opts[:prefix],
    'delimiter' => opts[:delimiter],
    'marker' => opts[:marker],
    'max-keys' => opts[:limit],
    'encoding-type' => opts[:encoding]
  }.reject { |_, v| v.nil? }

  r = @http.get({:bucket => bucket_name}, {:query => params})

  doc = parse_xml(r.body)
  encoding = get_node_text(doc.root, 'EncodingType')
  objects = doc.css("Contents").map do |node|
    Object.new(
      :key => get_node_text(node, "Key") { |x| decode_key(x, encoding) },
      :type => get_node_text(node, "Type"),
      :size => get_node_text(node, "Size", &:to_i),
      :etag => get_node_text(node, "ETag"),
      :last_modified =>
        get_node_text(node, "LastModified") { |x| Time.parse(x) }
    )
  end || []

  more = {
    :prefix => 'Prefix',
    :delimiter => 'Delimiter',
    :limit => 'MaxKeys',
    :marker => 'Marker',
    :next_marker => 'NextMarker',
    :truncated => 'IsTruncated',
    :encoding => 'EncodingType'
  }.reduce({}) { |h, (k, v)|
    value = get_node_text(doc.root, v)
    value.nil?? h : h.merge(k => value)
  }

  update_if_exists(
    more, {
      :limit => ->(x) { x.to_i },
      :truncated => ->(x) { x.to_bool },
      :delimiter => ->(x) { decode_key(x, encoding) },
      :marker => ->(x) { decode_key(x, encoding) },
      :next_marker => ->(x) { decode_key(x, encoding) }
    }
  )

  common_prefixes = []
  doc.css("CommonPrefixes Prefix").map do |node|
    common_prefixes << decode_key(node.text, encoding)
  end
  more[:common_prefixes] = common_prefixes unless common_prefixes.empty?

  logger.debug("Done list object. objects: #{objects}, more: #{more}")

  [objects, more]
end

#list_parts(bucket_name, object_name, txn_id, opts = {}) ⇒ Array<Multipart::Part>, Hash

Get a list of parts that are successfully uploaded in a transaction.

Parameters:

  • txn_id (String) —

    the upload id

  • opts (Hash) (defaults to: {}) —

    options:

Options Hash (opts):

  • :marker (Integer) —

    the part number marker after which to return parts

  • :limit (Integer) —

    max number parts to return

Returns:

  • (Array<Multipart::Part>, Hash) —

    the returned parts and a hash including next tokens, which includes:

    • :marker [Integer] the marker used

    • :limit [Integer] the limit used

    • :next_marker [Integer] marker to continue list parts

    • :truncated [Boolean] whether there are more parts to be returned



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# File 'lib/aliyun/oss/protocol.rb', line 1273

def list_parts(bucket_name, object_name, txn_id, opts = {})
  logger.debug("Begin list parts, bucket: #{bucket_name}, object: "\
               "#{object_name}, txn id: #{txn_id}, options: #{opts}")

  sub_res = {'uploadId' => txn_id}
  params = {
    'part-number-marker' => opts[:marker],
    'max-parts' => opts[:limit],
    'encoding-type' => opts[:encoding]
  }.reject { |_, v| v.nil? }

  r = @http.get(
    {:bucket => bucket_name, :object => object_name, :sub_res => sub_res},
    {:query => params})

  doc = parse_xml(r.body)
  parts = doc.css("Part").map do |node|
    Multipart::Part.new(
      :number => get_node_text(node, 'PartNumber', &:to_i),
      :etag => get_node_text(node, 'ETag'),
      :size => get_node_text(node, 'Size', &:to_i),
      :last_modified =>
        get_node_text(node, 'LastModified') { |x| Time.parse(x) })
  end || []

  more = {
    :limit => 'MaxParts',
    :marker => 'PartNumberMarker',
    :next_marker => 'NextPartNumberMarker',
    :truncated => 'IsTruncated',
    :encoding => 'EncodingType'
  }.reduce({}) { |h, (k, v)|
    value = get_node_text(doc.root, v)
    value.nil?? h : h.merge(k => value)
  }

  update_if_exists(
    more, {
      :limit => ->(x) { x.to_i },
      :truncated => ->(x) { x.to_bool }
    }
  )

  logger.debug("Done list parts, parts: #{parts}, more: #{more}")

  [parts, more]
end

#put_bucket_acl(name, acl) ⇒ Object

Put bucket acl

Parameters:

  • name (String) —

    the bucket name

  • acl (String) —

    the bucket acl

See Also:



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# File 'lib/aliyun/oss/protocol.rb', line 120

def put_bucket_acl(name, acl)
  logger.info("Begin put bucket acl, name: #{name}, acl: #{acl}")

  sub_res = {'acl' => nil}
  headers = {'x-oss-acl' => acl}
  @http.put(
    {:bucket => name, :sub_res => sub_res},
    {:headers => headers, :body => nil})

  logger.info("Done put bucket acl")
end

#put_bucket_lifecycle(name, rules) ⇒ Object

Put bucket lifecycle settings

Parameters:

See Also:



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# File 'lib/aliyun/oss/protocol.rb', line 330

def put_bucket_lifecycle(name, rules)
  logger.info("Begin put bucket lifecycle, name: #{name}, rules: "\
               "#{rules.map { |r| r.to_s }}")

  sub_res = {'lifecycle' => nil}
  body = Nokogiri::XML::Builder.new do |xml|
    xml.LifecycleConfiguration {
      rules.each do |r|
        xml.Rule {
          xml.ID r.id if r.id
          xml.Status r.enabled? ? 'Enabled' : 'Disabled'

          xml.Prefix r.prefix
          xml.Expiration {
            if r.expiry.is_a?(Date)
              xml.Date Time.utc(
                         r.expiry.year, r.expiry.month, r.expiry.day)
                        .iso8601.sub('Z', '.000Z')
            elsif r.expiry.is_a?(Fixnum)
              xml.Days r.expiry
            else
              fail ClientError, "Expiry must be a Date or Fixnum."
            end
          }
        }
      end
    }
  end.to_xml

  @http.put(
    {:bucket => name, :sub_res => sub_res},
    {:body => body})

  logger.info("Done put bucket lifecycle")
end

#put_bucket_logging(name, logging) ⇒ Object

Put bucket logging settings

Parameters:



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# File 'lib/aliyun/oss/protocol.rb', line 151

def put_bucket_logging(name, logging)
  logger.info("Begin put bucket logging, "\
              "name: #{name}, logging: #{logging}")

  if logging.enabled? && !logging.target_bucket
    fail ClientError,
         "Must specify target bucket when enabling bucket logging."
  end

  sub_res = {'logging' => nil}
  body = Nokogiri::XML::Builder.new do |xml|
    xml.BucketLoggingStatus {
      if logging.enabled?
        xml.LoggingEnabled {
          xml.TargetBucket logging.target_bucket
          xml.TargetPrefix logging.target_prefix if logging.target_prefix
        }
      end
    }
  end.to_xml

  @http.put(
    {:bucket => name, :sub_res => sub_res},
    {:body => body})

  logger.info("Done put bucket logging")
end

#put_bucket_referer(name, referer) ⇒ Object

Put bucket referer

Parameters:



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# File 'lib/aliyun/oss/protocol.rb', line 281

def put_bucket_referer(name, referer)
  logger.info("Begin put bucket referer, "\
              "name: #{name}, referer: #{referer}")

  sub_res = {'referer' => nil}
  body = Nokogiri::XML::Builder.new do |xml|
    xml.RefererConfiguration {
      xml.AllowEmptyReferer referer.allow_empty?
      xml.RefererList {
        (referer.whitelist or []).each do |r|
          xml.Referer r
        end
      }
    }
  end.to_xml

  @http.put(
    {:bucket => name, :sub_res => sub_res},
    {:body => body})

  logger.info("Done put bucket referer")
end

#put_bucket_website(name, website) ⇒ Object

Put bucket website settings

Parameters:



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# File 'lib/aliyun/oss/protocol.rb', line 217

def put_bucket_website(name, website)
  logger.info("Begin put bucket website, "\
              "name: #{name}, website: #{website}")

  unless website.index
    fail ClientError, "Must specify index to put bucket website."
  end

  sub_res = {'website' => nil}
  body = Nokogiri::XML::Builder.new do |xml|
    xml.WebsiteConfiguration {
      xml.IndexDocument {
        xml.Suffix website.index
      }
      if website.error
        xml.ErrorDocument {
          xml.Key website.error
        }
      end
    }
  end.to_xml

  @http.put(
    {:bucket => name, :sub_res => sub_res},
    {:body => body})

  logger.info("Done put bucket website")
end

#put_object(bucket_name, object_name, opts = {}) {|HTTP::StreamWriter| ... } ⇒ Object

Put an object to the specified bucket, a block is required to provide the object data.

Examples:

chunk = get_chunk
put_object('bucket', 'object') { |sw| sw.write(chunk) }

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name

  • opts (Hash) (defaults to: {}) —

    Options

Options Hash (opts):

  • :content_type (String) —

    the HTTP Content-Type for the file, if not specified client will try to determine the type itself and fall back to HTTP::DEFAULT_CONTENT_TYPE if it fails to do so

  • :metas (Hash<Symbol, String>) —

    key-value pairs that serve as the object meta which will be stored together with the object

  • :callback (Callback) —

    the HTTP callback performed by OSS after ‘put_object` succeeds

Yields:

  • (HTTP::StreamWriter) —

    a stream writer is yielded to the caller to which it can write chunks of data streamingly



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# File 'lib/aliyun/oss/protocol.rb', line 517

def put_object(bucket_name, object_name, opts = {}, &block)
  logger.debug("Begin put object, bucket: #{bucket_name}, object: "\
               "#{object_name}, options: #{opts}")

  headers = {'Content-Type' => opts[:content_type]}
  if opts.key?(:callback)
    headers[CALLBACK_HEADER] = opts[:callback].serialize
  end

  (opts[:metas] || {})
    .each { |k, v| headers["x-oss-meta-#{k.to_s}"] = v.to_s }

  r = @http.put(
    {:bucket => bucket_name, :object => object_name},
    {:headers => headers, :body => HTTP::StreamPayload.new(&block)})

  if r.code == 203
    e = CallbackError.new(r)
    logger.error(e.to_s)
    raise e
  end

  logger.debug('Done put object')
end

#put_object_acl(bucket_name, object_name, acl) ⇒ Object

Put object acl

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name

  • acl (String) —

    the object’s ACL. See ACL



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# File 'lib/aliyun/oss/protocol.rb', line 935

def put_object_acl(bucket_name, object_name, acl)
  logger.debug("Begin update object acl, bucket: #{bucket_name}, "\
               "object: #{object_name}, acl: #{acl}")

  sub_res = {'acl' => nil}
  headers = {'x-oss-object-acl' => acl}

  @http.put(
    {:bucket => bucket_name, :object => object_name, :sub_res => sub_res},
    {:headers => headers})

  logger.debug("Done update object acl")
end

#set_bucket_cors(name, rules) ⇒ Object

Set bucket CORS(Cross-Origin Resource Sharing) rules

Parameters:

  • name (String) —

    the bucket name

  • rules (Array<OSS::CORSRule] the CORS rules) —

    ules [Array<OSS::CORSRule] the CORS rules

See Also:



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# File 'lib/aliyun/oss/protocol.rb', line 414

def set_bucket_cors(name, rules)
  logger.info("Begin set bucket cors, bucket: #{name}, rules: "\
               "#{rules.map { |r| r.to_s }.join(';')}")

  sub_res = {'cors' => nil}
  body = Nokogiri::XML::Builder.new do |xml|
    xml.CORSConfiguration {
      rules.each do |r|
        xml.CORSRule {
          r.allowed_origins.each { |x| xml.AllowedOrigin x }
          r.allowed_methods.each { |x| xml.AllowedMethod x }
          r.allowed_headers.each { |x| xml.AllowedHeader x }
          r.expose_headers.each { |x| xml.ExposeHeader x }
          xml.MaxAgeSeconds r.max_age_seconds if r.max_age_seconds
        }
      end
    }
  end.to_xml

  @http.put(
    {:bucket => name, :sub_res => sub_res},
    {:body => body})

  logger.info("Done delete bucket lifecycle")
end

#sign(string_to_sign) ⇒ String

Sign a string using the stored access key secret

Parameters:

  • string_to_sign (String) —

    the string to sign

Returns:



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# File 'lib/aliyun/oss/protocol.rb', line 1338

def sign(string_to_sign)
  Util.sign(@config.access_key_secret, string_to_sign)
end

#upload_part(bucket_name, object_name, txn_id, part_no) {|HTTP::StreamWriter| ... } ⇒ Object

Upload a part in a multipart uploading transaction.

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name

  • txn_id (String) —

    the upload id

  • part_no (Integer) —

    the part number

Yields:

  • (HTTP::StreamWriter) —

    a stream writer is yielded to the caller to which it can write chunks of data streamingly



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# File 'lib/aliyun/oss/protocol.rb', line 1051

def upload_part(bucket_name, object_name, txn_id, part_no, &block)
  logger.debug("Begin upload part, bucket: #{bucket_name}, object: "\
               "#{object_name}, txn id: #{txn_id}, part No: #{part_no}")

  sub_res = {'partNumber' => part_no, 'uploadId' => txn_id}
  r = @http.put(
    {:bucket => bucket_name, :object => object_name, :sub_res => sub_res},
    {:body => HTTP::StreamPayload.new(&block)})

  logger.debug("Done upload part")

  Multipart::Part.new(:number => part_no, :etag => r.headers[:etag])
end

#upload_part_by_copy(bucket_name, object_name, txn_id, part_no, source_object, opts = {}) ⇒ Object

Upload a part in a multipart uploading transaction by copying from an existent object as the part’s content. It may copy only part of the object by specifying the bytes range to read.

Parameters:

  • bucket_name (String) —

    the bucket name

  • object_name (String) —

    the object name

  • txn_id (String) —

    the upload id

  • part_no (Integer) —

    the part number

  • source_object (String) —

    the source object name to copy from

  • opts (Hash) (defaults to: {}) —

    options

Options Hash (opts):

  • :range (Array<Integer>) —

    the bytes range to copy, int the format: [begin(inclusive), end(exclusive]

  • :condition (Hash) —

    preconditions to copy the object. See #get_object



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# File 'lib/aliyun/oss/protocol.rb', line 1078

def upload_part_by_copy(
      bucket_name, object_name, txn_id, part_no, source_object, opts = {})
  logger.debug("Begin upload part by copy, bucket: #{bucket_name}, "\
               "object: #{object_name}, source object: #{source_object}"\
               "txn id: #{txn_id}, part No: #{part_no}, options: #{opts}")

  range = opts[:range]
  conditions = opts[:condition]

  if range && (!range.is_a?(Array) || range.size != 2)
    fail ClientError, "Range must be an array containing 2 Integers."
  end

  headers = {
    'x-oss-copy-source' =>
      @http.get_resource_path(bucket_name, source_object)
  }
  headers['Range'] = get_bytes_range(range) if range
  headers.merge!(get_copy_conditions(conditions)) if conditions

  sub_res = {'partNumber' => part_no, 'uploadId' => txn_id}

  r = @http.put(
    {:bucket => bucket_name, :object => object_name, :sub_res => sub_res},
    {:headers => headers})

  logger.debug("Done upload part by copy: #{source_object}.")

  Multipart::Part.new(:number => part_no, :etag => r.headers[:etag])
end