Class: Rack::Cors
- Inherits:
-
Object
show all
- Defined in:
- lib/rack/cors.rb,
lib/rack/cors/version.rb
Defined Under Namespace
Classes: Resource, Resources
Constant Summary
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- VERSION =
"0.2.9"
Instance Method Summary
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Constructor Details
#initialize(app, opts = {}, &block) ⇒ Cors
Returns a new instance of Cors.
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# File 'lib/rack/cors.rb', line 5
def initialize(app, opts={}, &block)
@app = app
@logger = opts[:logger]
@debug_mode = !!opts[:debug]
if block_given?
if block.arity == 1
block.call(self)
else
instance_eval(&block)
end
end
end
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Instance Method Details
#allow(&block) ⇒ Object
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# File 'lib/rack/cors.rb', line 19
def allow(&block)
all_resources << (resources = Resources.new)
if block.arity == 1
block.call(resources)
else
resources.instance_eval(&block)
end
end
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#call(env) ⇒ Object
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# File 'lib/rack/cors.rb', line 29
def call(env)
env['HTTP_ORIGIN'] = 'file://' if env['HTTP_ORIGIN'] == 'null'
env['HTTP_ORIGIN'] ||= env['HTTP_X_ORIGIN']
= nil
if env['HTTP_ORIGIN']
debug(env) do
[ 'Incoming Headers:',
" Origin: #{env['HTTP_ORIGIN']}",
" Access-Control-Request-Method: #{env['HTTP_ACCESS_CONTROL_REQUEST_METHOD']}",
" Access-Control-Request-Headers: #{env['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']}"
].join("\n")
end
if env['REQUEST_METHOD'] == 'OPTIONS' and env['HTTP_ACCESS_CONTROL_REQUEST_METHOD']
if = process_preflight(env)
debug(env) do
"Preflight Headers:\n" +
.collect{|kv| " #{kv.join(': ')}"}.join("\n")
end
return [200, , []]
end
else
= process_cors(env)
end
end
status, , body = @app.call env
if
= .merge()
unless ['Access-Control-Allow-Origin'] == '*'
vary = ['Vary']
['Vary'] = ((vary ? vary.split(/,\s*/) : []) + ['Origin']).uniq.join(', ')
end
end
[status, , body]
end
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