~samwhited/xmpp

all: be strict about namespace validation

When decoding stanzas, be more strict about verifying the namespace.
Previously stanzas would have an empty namespace, but the session should
always setup the default namespace correctly now.

Signed-off-by: Sam Whited <sam@samwhited.com>
internal/xmpptest: set default stream namespace

Previously test sessions did not have a default namespace. Setting the
namespace ensures that IQ and Stanza name checks won't break in the
future when we start being more strict about validating namespaces.

Signed-off-by: Sam Whited <sam@samwhited.com>
xmpp: fix error reporting unexpected token type

Previously the error reporting an unexpected token would always claim
that the token was a start token (which is the expected type). Instead,
report the unexpected token's type.

Signed-off-by: Sam Whited <sam@samwhited.com>
all: mention Go license in readme

Signed-off-by: Sam Whited <sam@samwhited.com>
xmpp: remove duplicate helper function

The recent updates to attr.Get allow us to use it in place of the getID
helper function which returned the value and index of the "id" attribute
specifically.

Signed-off-by: Sam Whited <sam@samwhited.com>
internal/attr: update Get to return the index

Previously only the value was returned, however, if we are trying to
conditionally update an attribute it would be helpful to know where in
the slice of attributes the result was found.

Signed-off-by: Sam Whited <sam@samwhited.com>
all: fix broken link in the readme

Signed-off-by: Sam Whited <sam@samwhited.com>
docs: use single directory for documentation

Signed-off-by: Sam Whited <sam@samwhited.com>
.builds: add DCO check

Using a developer certificate of origin gives us a simple way to ask
people to assert that they have the rights to submit their code without
requiring cumbersome CLAs.

Signed-off-by: Sam Whited <sam@samwhited.com>
xtime: add new package

The xtime package contains functionality relating to time including
implementations of XEP-0202: Entity Time and XEP-0082: XMPP Date and
Time Profiles.

Signed-off-by: Sam Whited <sam@samwhited.com>
ping: add ability to easily send and handle pings

Signed-off-by: Sam Whited <sam@samwhited.com>
mux: let ServeMux register stanza handlers

Previously the multiplexer was too generalized and only handled top
level elements. To handle children different types of alternative muxers
had to be registered. Instead, move all the functionality for matching
against different stanza types into the main muxer and separate the
stanza handlers from the generic top level handlers.

Fixes #25

Signed-off-by: Sam Whited <sam@samwhited.com>
.builds: error if golint fails

Signed-off-by: Sam Whited <sam@samwhited.com>
.builds: validate docs and import comments

Signed-off-by: Sam Whited <sam@samwhited.com>
all: add missing canonical import comments

Signed-off-by: Sam Whited <sam@samwhited.com>
stanza: add API for easily replying to IQs

Previously the user had to do the repetative task of switching the
to/from attributes and changing the type.  While this isn't a lot of
extra work, it has to be done every time you want to reply to an IQ.
Instead it makes sense to have an easy way to simply reply to the IQ
without making an explicit copy or modifying it and without having to
jump through extra hoops.
design: add an open question to stanza mux
design: add new stanzamux design proposal

The previous iqmux design was incomplete, and ended up being cumbersome
in practice. This proposal aims to solve those issues.
mux: add IQ option types that take a func

Previously there were only option shortcuts for regular handlers and not
for the function adapter. This adds more shortcuts for the function
adapter types to make registering handlers with inline functions easier.
mux: add IQ matcher

Adding a separate IQ muxer to the mux package will allow us to easily
match based on the payload of an IQ without requiring special handling
in the standard muxer.

See https://mellium.im/design/18_iqmux

Fixes #18
mux: return wildcard handlers from Handler method

Previously the Handler method would only return a handler if an exact
match for the name was found, and would otherwise return the fallback
handler. This change moves the logic for selecting wildcard handlers
into Handler so that what Handler returns is always what would be
selected if an incoming payload matching the name were handed to
HandleXMPP.
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