The X509
certificate store holds trusted CA certificates used to verify peer certificates.
The easiest way to create a useful certificate store is:
cert_store = OpenSSL::X509::Store.new cert_store.set_default_paths
This will use your system’s built-in certificates.
If your system does not have a default set of certificates you can obtain a set extracted from Mozilla CA certificate store by cURL maintainers here: curl.haxx.se/docs/caextract.html (You may wish to use the firefox-db2pem.sh script to extract the certificates from a local install to avoid man-in-the-middle attacks.)
After downloading or generating a cacert.pem from the above link you can create a certificate store from the pem file like this:
cert_store = OpenSSL::X509::Store.new cert_store.add_file 'cacert.pem'
The certificate store can be used with an SSLSocket like this:
ssl_context = OpenSSL::SSL::SSLContext.new ssl_context.verify_mode = OpenSSL::SSL::VERIFY_PEER ssl_context.cert_store = cert_store tcp_socket = TCPSocket.open 'example.com', 443 ssl_socket = OpenSSL::SSL::SSLSocket.new tcp_socket, ssl_context
This handler will capture an event and record the event. Recorder
events are available vial Psych::Handlers::Recorder#events
.
For example:
recorder = Psych::Handlers::Recorder.new parser = Psych::Parser.new recorder parser.parse '--- foo' recorder.events # => [list of events] # Replay the events emitter = Psych::Emitter.new $stdout recorder.events.each do |m, args| emitter.send m, *args end
Represents a YAML stream. This is the root node for any YAML parse tree. This node must have one or more child nodes. The only valid child node for a Psych::Nodes::Stream
node is Psych::Nodes::Document
.
File-based session storage class.
Implements session storage as a flat file of ‘key=value’ values. This storage type only works directly with String
values; the user is responsible for converting other types to Strings when storing and from Strings when retrieving.
Dummy session storage class.
Implements session storage place holder. No actual storage will be done.
PStore-based session storage class.
This builds upon the top-level PStore
class provided by the library file pstore.rb. Session
data is marshalled and stored in a file. File
locking and transaction services are provided.
The Transitive
formatter writes an XML
document that parses to an identical document as the source document. This means that no extra whitespace nodes are inserted, and whitespace within text nodes is preserved. Within these constraints, the document is pretty-printed, with whitespace inserted into the metadata to introduce formatting.
Note that this is only useful if the original XML
is not already formatted. Since this formatter does not alter whitespace nodes, the results of formatting already formatted XML
will be odd.
Used Internally. Wraps a Dependency object to also track which spec contained the Dependency.
A VendorSpecification
represents a gem that has been unpacked into a project and is being loaded through a gem dependencies file through the path:
option.
Delegates
all {Gem::Resolver::Molinillo::ResolutionState} methods to a ‘#state` property.
Indicates a problem with the DNS
request.
IO
wrapper that allows writing a limited amount of data
Provides information about specifcations and dependencies to the resolver, allowing the {Resolver} class to remain generic while still providing power and flexibility.
This module contains the methods that users of Gem::Resolver::Molinillo
must to implement, using knowledge of their own model classes.
Continuation
objects are generated by Kernel#callcc
, after having +require+d continuation. They hold a return address and execution context, allowing a nonlocal return to the end of the callcc
block from anywhere within a program. Continuations are somewhat analogous to a structured version of C’s setjmp/longjmp
(although they contain more state, so you might consider them closer to threads).
For instance:
require "continuation" arr = [ "Freddie", "Herbie", "Ron", "Max", "Ringo" ] callcc{|cc| $cc = cc} puts(message = arr.shift) $cc.call unless message =~ /Max/
produces:
Freddie Herbie Ron Max
Also you can call callcc in other methods:
require "continuation" def g arr = [ "Freddie", "Herbie", "Ron", "Max", "Ringo" ] cc = callcc { |cc| cc } puts arr.shift return cc, arr.size end def f c, size = g c.call(c) if size > 1 end f
This (somewhat contrived) example allows the inner loop to abandon processing early:
require "continuation" callcc {|cont| for i in 0..4 print "\n#{i}: " for j in i*5...(i+1)*5 cont.call() if j == 17 printf "%3d", j end end } puts
produces:
0: 0 1 2 3 4 1: 5 6 7 8 9 2: 10 11 12 13 14 3: 15 16