luasec/doc/ssl.md

Created using ssl.create or ssl.wrap.

Methods

conn:close

conn:close()

Closes the connection, releasing the resources.

conn:getfd

fd = conn:getfd()

Retrieves the file descriptor belonging to this connection.

conn:getfinished

lastFinishedMsg = conn:getfinished()

Gets the last "Finished" message sent out. Can fail, in which case it returns nil, followed by an error message.

conn:getpeercertificate

cert = conn:getpeercertificate()

Return a cert object corresponding to the peer's public x509 certificate. Can fail, in which case it returns nil, followed by an error message.

conn:getpeerchain

chain = conn:getpeerchain()

Returns a list of cert objects. Can fail, in which case it returns nil, followed by an error message.

conn:getpeerverification

valid, reason = conn:getpeerverification()

Returns whether the peer's certificate verified successfully. Note that reason can be either a string, or a table of strings.

conn:getpeerfinished

lastFinishedMsg = conn:getpeerfinished()

Gets the last "Finished" message received. See conn:getfinished.

conn:getsniname

sniName = conn:getsniname()

Returns the server name set using the TLS Server Name Indication (SNI) extension, if set.

conn:getstats

See luasocket's conn:getstats.

conn:setstats

See luasocket's conn:setstats.

conn:dirty

dirty = conn:dirty()

Returns true if there is still information waiting to be sent, return false if the buffer is empty and there is no SSL/TLS traffic pending. Note that a closed connection if never dirty.

conn:dohandshake

success, error = conn:dohandshake()

Tries to establish SSL/TLS connection. Do this before using either conn:send or conn:receive. This method negotiates with the peer to find and set connection parameters. Most information obtainable from a conn object is only available after the handshake.

NOTE: This method checks for a valid certificate, but does not verify if the certificate belongs to the hostname connected to.

conn:receive

See luasocket's conn:receive.

conn:send

See luasocket's conn:send.

conn:settimeout

See luasocket's conn:settimeout.

conn:sni

-- client
conn:sni(serverName)

-- server
conn:sni({[serverName] = context, ...}, strict)

On the client, sets the server name to pass to the server using the TLS Server Name Indication (SNI) extension.

On the server, establishes a mapping between server names and contexts, allowing context selection based on the client's SNI value. If strict is true, the indicated server name must be in the table, or the negotiation fails. If strict is false and the indicated server name is not present in the table, use the context associated with this conn object.

conn:want

want = conn:want()

Returns luasec's current want, if the connection is dirty (see conn:dirty). This can either be nothing, read, write or x509lookup.