Mercurial > prosody-modules
changeset 2931:e79b9a55aa2e
mod_net_proxy: Fixed backwards compatibility to Prosody 0.10
| author | Pascal Mathis <mail@pascalmathis.com> |
|---|---|
| date | Thu, 15 Mar 2018 21:39:46 +0100 |
| parents | 9a62780e7ee2 |
| children | 4bb3a4b726c9 |
| files | mod_net_proxy/mod_net_proxy.lua |
| diffstat | 1 files changed, 34 insertions(+), 4 deletions(-) [+] |
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--- a/mod_net_proxy/mod_net_proxy.lua Thu Mar 15 15:26:30 2018 +0100 +++ b/mod_net_proxy/mod_net_proxy.lua Thu Mar 15 21:39:46 2018 +0100 @@ -14,6 +14,36 @@ local net = require "util.net"; local portmanager = require "core.portmanager"; +-- Backwards Compatibility +local function net_ntop_bc(input) + if input:len() == 4 then + return string.format("%d.%d.%d.%d", input:byte(1, 4)); + elseif input:len() == 16 then + local octets = { nil, nil, nil, nil, nil, nil, nil, nil }; + + -- Convert received bytes into IPv6 address and skip leading zeroes for each group + for index = 1, 8 do + high, low = input:byte(index * 2 - 1, index * 2); + octets[index] = string.format("%x", high * 256 + low); + end + local address = table.concat(octets, ":", 1, 8); + + -- Search for the longest sequence of zeroes + local token; + local length = (address:match("^0:[0:]+()") or 1) - 1; + for s in address:gmatch(":0:[0:]+") do + if length < #s then + length, token = #s, s; + end + end + + -- Return the shortened IPv6 address + return address:gsub(token or "^0:[0:]+", "::", 1); + end +end + +local net_ntop = net.ntop or net_ntop_bc + -- Utility Functions local function _table_invert(input) local output = {}; @@ -197,11 +227,11 @@ -- Parse source and destination addresses if addr_family == ADDR_FAMILY.INET then - src_addr = net.ntop(payload:sub(offset, offset + 3)); offset = offset + 4; - dst_addr = net.ntop(payload:sub(offset, offset + 3)); offset = offset + 4; + src_addr = net_ntop(payload:sub(offset, offset + 3)); offset = offset + 4; + dst_addr = net_ntop(payload:sub(offset, offset + 3)); offset = offset + 4; elseif addr_family == ADDR_FAMILY.INET6 then - src_addr = net.ntop(payload:sub(offset, offset + 15)); offset = offset + 16; - dst_addr = net.ntop(payload:sub(offset, offset + 15)); offset = offset + 16; + src_addr = net_ntop(payload:sub(offset, offset + 15)); offset = offset + 16; + dst_addr = net_ntop(payload:sub(offset, offset + 15)); offset = offset + 16; elseif addr_family == ADDR_FAMILY.UNIX then src_addr = payload:sub(offset, offset + 107); offset = offset + 108; dst_addr = payload:sub(offset, offset + 107); offset = offset + 108;