prosody-modules: mod_compression_unsafe/mod_compression

annotate mod_compression_unsafe/mod_compression_unsafe.lua @ 5390:f2363e6d9a64

mod_http_oauth2: Advertise the currently supported id_token signing algorithm This field is REQUIRED. The algorithm RS256 MUST be included, but isn't because we don't implement it, as that would require implementing a pile of additional cryptography and JWT stuff. Instead the id_token is signed using the client secret, which allows verification by the client, since it's a shared secret per OpenID Connect Core 1.0 § 10.1 under Symmetric Signatures. OpenID Connect Discovery 1.0 has a lot of REQUIRED and MUST clauses that are not supported here, but that's okay because this is served from the RFC 8414 OAuth 2.0 Authorization Server Metadata .well-known endpoint!

author	Kim Alvefur <zash@zash.se>
date	Sun, 30 Apr 2023 16:13:40 +0200
parents	226693a22fc9
children

rev	line source
2482 c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	1 -- Prosody IM
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	2 -- Copyright (C) 2009-2012 Tobias Markmann
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	3 --
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	4 -- This project is MIT/X11 licensed. Please see the
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	5 -- COPYING file in the source package for more information.
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	6 --
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	7
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	8 local st = require "util.stanza";
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	9 local zlib = require "zlib";
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	10 local pcall = pcall;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	11 local tostring = tostring;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	12
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	13 local xmlns_compression_feature = "http://jabber.org/features/compress"
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	14 local xmlns_compression_protocol = "http://jabber.org/protocol/compress"
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	15 local xmlns_stream = "http://etherx.jabber.org/streams";
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	16 local compression_stream_feature = st.stanza("compression", {xmlns=xmlns_compression_feature}):tag("method"):text("zlib"):up();
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	17 local add_filter = require "util.filters".add_filter;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	18
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	19 local compression_level = module:get_option_number("compression_level", 7);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	20
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	21 if not compression_level or compression_level < 1 or compression_level > 9 then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	22 module:log("warn", "Invalid compression level in config: %s", tostring(compression_level));
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	23 module:log("warn", "Module loading aborted. Compression won't be available.");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	24 return;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	25 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	26
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	27 module:hook("stream-features", function(event)
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	28 local origin, features = event.origin, event.features;
2795 226693a22fc9 mod_compression_unsafe: Fix logic bug in previous commit Matthew Wild <mwild1@gmail.com> parents: 2794 diff changeset	29 if not origin.compressed and (origin.type == "c2s" or origin.type == "c2s_unbound") then
2482 c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	30 features:add_child(compression_stream_feature);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	31 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	32 end);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	33
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	34 module:hook("s2s-stream-features", function(event)
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	35 local origin, features = event.origin, event.features;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	36 if not origin.compressed and origin.type == "s2sin" then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	37 features:add_child(compression_stream_feature);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	38 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	39 end);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	40
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	41 -- Hook to activate compression if remote server supports it.
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	42 module:hook_stanza(xmlns_stream, "features",
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	43 function (session, stanza)
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	44 if not session.compressed and session.type == "s2sout" then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	45 -- does remote server support compression?
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	46 local comp_st = stanza:get_child("compression", xmlns_compression_feature);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	47 if comp_st then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	48 -- do we support the mechanism
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	49 for a in comp_st:childtags("method") do
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	50 local algorithm = a:get_text();
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	51 if algorithm == "zlib" then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	52 session.sends2s(st.stanza("compress", {xmlns=xmlns_compression_protocol}):tag("method"):text("zlib"))
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	53 session.log("debug", "Enabled compression using zlib.")
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	54 return true;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	55 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	56 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	57 session.log("debug", "Remote server supports no compression algorithm we support.")
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	58 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	59 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	60 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	61 , 250);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	62
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	63
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	64 -- returns either nil or a fully functional ready to use inflate stream
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	65 local function get_deflate_stream(session)
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	66 local status, deflate_stream = pcall(zlib.deflate, compression_level);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	67 if status == false then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	68 local error_st = st.stanza("failure", {xmlns=xmlns_compression_protocol}):tag("setup-failed");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	69 (session.sends2s or session.send)(error_st);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	70 session.log("error", "Failed to create zlib.deflate filter.");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	71 module:log("error", "%s", tostring(deflate_stream));
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	72 return
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	73 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	74 return deflate_stream
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	75 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	76
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	77 -- returns either nil or a fully functional ready to use inflate stream
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	78 local function get_inflate_stream(session)
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	79 local status, inflate_stream = pcall(zlib.inflate);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	80 if status == false then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	81 local error_st = st.stanza("failure", {xmlns=xmlns_compression_protocol}):tag("setup-failed");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	82 (session.sends2s or session.send)(error_st);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	83 session.log("error", "Failed to create zlib.inflate filter.");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	84 module:log("error", "%s", tostring(inflate_stream));
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	85 return
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	86 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	87 return inflate_stream
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	88 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	89
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	90 -- setup compression for a stream
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	91 local function setup_compression(session, deflate_stream)
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	92 add_filter(session, "bytes/out", function(t)
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	93 local status, compressed, eof = pcall(deflate_stream, tostring(t), 'sync');
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	94 if status == false then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	95 module:log("warn", "%s", tostring(compressed));
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	96 session:close({
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	97 condition = "undefined-condition";
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	98 text = compressed;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	99 extra = st.stanza("failure", {xmlns="http://jabber.org/protocol/compress"}):tag("processing-failed");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	100 });
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	101 return;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	102 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	103 return compressed;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	104 end);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	105 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	106
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	107 -- setup decompression for a stream
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	108 local function setup_decompression(session, inflate_stream)
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	109 add_filter(session, "bytes/in", function(data)
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	110 local status, decompressed, eof = pcall(inflate_stream, data);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	111 if status == false then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	112 module:log("warn", "%s", tostring(decompressed));
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	113 session:close({
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	114 condition = "undefined-condition";
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	115 text = decompressed;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	116 extra = st.stanza("failure", {xmlns="http://jabber.org/protocol/compress"}):tag("processing-failed");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	117 });
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	118 return;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	119 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	120 return decompressed;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	121 end);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	122 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	123
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	124 module:hook("stanza/http://jabber.org/protocol/compress:compressed", function(event)
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	125 local session = event.origin;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	126
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	127 if session.type == "s2sout" then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	128 session.log("debug", "Activating compression...")
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	129 -- create deflate and inflate streams
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	130 local deflate_stream = get_deflate_stream(session);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	131 if not deflate_stream then return true; end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	132
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	133 local inflate_stream = get_inflate_stream(session);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	134 if not inflate_stream then return true; end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	135
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	136 -- setup compression for session.w
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	137 setup_compression(session, deflate_stream);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	138
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	139 -- setup decompression for session.data
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	140 setup_decompression(session, inflate_stream);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	141 session:reset_stream();
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	142 session:open_stream(session.from_host, session.to_host);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	143 session.compressed = true;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	144 return true;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	145 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	146 end);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	147
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	148 module:hook("stanza/http://jabber.org/protocol/compress:failure", function(event)
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	149 local err = event.stanza:get_child();
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	150 (event.origin.log or module._log)("warn", "Compression setup failed (%s)", err and err.name or "unknown reason");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	151 return true;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	152 end);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	153
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	154 module:hook("stanza/http://jabber.org/protocol/compress:compress", function(event)
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	155 local session, stanza = event.origin, event.stanza;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	156
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	157 if session.type == "c2s" or session.type == "s2sin" then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	158 -- fail if we are already compressed
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	159 if session.compressed then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	160 local error_st = st.stanza("failure", {xmlns=xmlns_compression_protocol}):tag("setup-failed");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	161 (session.sends2s or session.send)(error_st);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	162 session.log("debug", "Client tried to establish another compression layer.");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	163 return true;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	164 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	165
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	166 -- checking if the compression method is supported
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	167 local method = stanza:get_child_text("method");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	168 if method == "zlib" then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	169 session.log("debug", "zlib compression enabled.");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	170
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	171 -- create deflate and inflate streams
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	172 local deflate_stream = get_deflate_stream(session);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	173 if not deflate_stream then return true; end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	174
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	175 local inflate_stream = get_inflate_stream(session);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	176 if not inflate_stream then return true; end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	177
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	178 (session.sends2s or session.send)(st.stanza("compressed", {xmlns=xmlns_compression_protocol}));
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	179 session:reset_stream();
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	180
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	181 -- setup compression for session.w
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	182 setup_compression(session, deflate_stream);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	183
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	184 -- setup decompression for session.data
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	185 setup_decompression(session, inflate_stream);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	186
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	187 session.compressed = true;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	188 elseif method then
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	189 session.log("debug", "%s compression selected, but we don't support it.", tostring(method));
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	190 local error_st = st.stanza("failure", {xmlns=xmlns_compression_protocol}):tag("unsupported-method");
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	191 (session.sends2s or session.send)(error_st);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	192 else
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	193 (session.sends2s or session.send)(st.stanza("failure", {xmlns=xmlns_compression_protocol}):tag("setup-failed"));
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	194 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	195 return true;
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	196 end
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	197 end);
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525 Kim Alvefur <zash@zash.se> parents: diff changeset	198

Mercurial > prosody-modules

annotate mod_compression_unsafe/mod_compression_unsafe.lua @ 5390:f2363e6d9a64