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126 lines
3.4 KiB
Ruby
126 lines
3.4 KiB
Ruby
module RestClient
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# A class that can be instantiated for access to a RESTful resource,
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# including authentication.
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#
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# Example:
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#
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# resource = RestClient::Resource.new('http://some/resource')
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# jpg = resource.get(:accept => 'image/jpg')
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#
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# With HTTP basic authentication:
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#
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# resource = RestClient::Resource.new('http://protected/resource', :user => 'user', :password => 'password')
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# resource.delete
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#
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# You can also use resources to share common headers. For headers keys,
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# symbols are converted to strings. Example:
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#
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# resource = RestClient::Resource.new('http://some/resource', :headers => { :client_version => 1 })
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#
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# This header will be transported as X-Client-Version (notice the X prefix,
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# capitalization and hyphens)
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#
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# Use the [] syntax to allocate subresources:
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#
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# site = RestClient::Resource.new('http://example.com', :user => 'adam', :password => 'mypasswd')
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# site['posts/1/comments'].post 'Good article.', :content_type => 'text/plain'
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#
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class Resource
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attr_reader :url, :options
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def initialize(url, options={}, backwards_compatibility=nil)
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@url = url
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if options.class == Hash
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@options = options
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else # compatibility with previous versions
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@options = { :user => options, :password => backwards_compatibility }
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end
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end
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def get(additional_headers={})
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Request.execute(:method => :get,
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:url => url,
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:user => user,
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:password => password,
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:headers => headers.merge(additional_headers))
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end
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def post(payload, additional_headers={})
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Request.execute(:method => :post,
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:url => url,
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:payload => payload,
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:user => user,
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:password => password,
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:headers => headers.merge(additional_headers))
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end
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def put(payload, additional_headers={})
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Request.execute(:method => :put,
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:url => url,
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:payload => payload,
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:user => user,
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:password => password,
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:headers => headers.merge(additional_headers))
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end
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def delete(additional_headers={})
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Request.execute(:method => :delete,
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:url => url,
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:user => user,
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:password => password,
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:headers => headers.merge(additional_headers))
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end
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def user
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options[:user]
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end
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def password
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options[:password]
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end
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def headers
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options[:headers] || {}
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end
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# Construct a subresource, preserving authentication.
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#
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# Example:
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#
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# site = RestClient::Resource.new('http://example.com', 'adam', 'mypasswd')
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# site['posts/1/comments'].post 'Good article.', :content_type => 'text/plain'
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#
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# This is especially useful if you wish to define your site in one place and
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# call it in multiple locations:
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#
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# def orders
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# RestClient::Resource.new('http://example.com/orders', 'admin', 'mypasswd')
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# end
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#
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# orders.get # GET http://example.com/orders
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# orders['1'].get # GET http://example.com/orders/1
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# orders['1/items'].delete # DELETE http://example.com/orders/1/items
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#
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# Nest resources as far as you want:
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#
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# site = RestClient::Resource.new('http://example.com')
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# posts = site['posts']
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# first_post = posts['1']
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# comments = first_post['comments']
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# comments.post 'Hello', :content_type => 'text/plain'
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#
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def [](suburl)
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self.class.new(concat_urls(url, suburl), options)
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end
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def concat_urls(url, suburl) # :nodoc:
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url = url.to_s
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suburl = suburl.to_s
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if url.slice(-1, 1) == '/' or suburl.slice(0, 1) == '/'
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url + suburl
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else
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"#{url}/#{suburl}"
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end
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end
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end
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end
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