--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/capscan.lua Sat Sep 18 18:19:37 2010 +0100
@@ -0,0 +1,154 @@
+require "verse"
+require "verse.client"
+local array = require "array";
+local calculate_hash = require "caps".calculate_hash;
+
+-- Configurable:
+local jid, pass = arg[1], nil;
+--- -- -- -- ---
+
+local escape_table = { ["'"] = "'", ["\""] = """, ["<"] = "<", [">"] = ">", ["&"] = "&" };
+local function escape(str) return (string.gsub(str, "['&<>\"]", escape_table)); end
+
+local xmlns_caps = "http://jabber.org/protocol/caps";
+local xmlns_disco = "http://jabber.org/protocol/disco#info";
+
+if not pass then
+ io.write("Password (not blanked): ");
+ pass = io.read("*l");
+end
+
+local conn = verse.new(verse.logger());
+
+conn:add_plugin("version");
+
+conn:connect_client(jid, pass);
+
+local contacts = {};
+
+conn:hook("ready", function ()
+ conn:hook("presence", function (presence)
+ if contacts[presence.attr.from] then return; end;
+
+ local contact = { jid = presence.attr.from };
+ contacts[contact.jid] = contact;
+
+ local caps_tag = presence:get_child("c", xmlns_caps);
+ if not caps_tag then
+ conn:debug("No caps from %s: %s", presence.attr.from, tostring(presence));
+ return;
+ end
+
+ contact.hash_type = caps_tag.attr.hash;
+ contact.ver = caps_tag.attr.ver;
+ contact.node = caps_tag.attr.node;
+
+ local node_string = contact.node.."#"..contact.ver;
+
+ conn:query_version(contact.jid, function (version)
+ contact.version = ("%s%s%s"):format(
+ version.name or "[no name]",
+ version.version and (" "..version.version) or "",
+ version.platform and (" ("..version.platform..")") or ""
+ );
+ end);
+
+ conn:send_iq(verse.iq({ to = contact.jid, type = "get" })
+ :tag("query", { xmlns = xmlns_disco, node = node_string }),
+ function (result)
+ if result.attr.type == "error" then
+ contact.error = { result:get_error() };
+ return;
+ end
+ contact.calculated_ver, contact.calculated_S
+ = calculate_hash(result.tags[1]);
+ if contact.calculated_ver ~= contact.ver then
+ conn:warn("Invalid caps hash: %s", contact.jid);
+ conn:warn("Received: %s Calculated: %s", contact.ver, contact.calculated_ver);
+ conn:warn("Received stanza: %s", tostring(result));
+ conn:warn("Calculated S: %s", contact.calculated_S);
+ else
+ conn:warn("Valid caps hash: %s", contact.jid);
+ end
+ end);
+ end, 1000);
+ conn:send(verse.presence():tag("priority"):text("-1"));
+end);
+
+verse.loop();
+
+--- Write report
+
+local report = io.open("report.html", "w+");
+report:write[[<html>
+<head>
+ <title>]];
+report:write("Entity capabilities validity for contacts of ", jid);
+report:write[[</head>
+<body>
+]];
+
+report:write[[<style type="text/css">
+ .good-hash { background-color: #33aa33; }
+ .bad-hash { background-color: #aa3333; }
+ .no-hash { background-color: #ffffff; }
+ .unknown-hash { background-color: #aaaa33; }
+</style>
+]]
+
+
+local contact_jids = array.collect(keys(contacts)):sort();
+
+report:write("<h1>Entity capabilities report for contacts of ", jid, "</h1>\n");
+report:write("<p>", tostring(#contact_jids), " contacts</p>\n");
+
+local function write_section(title, jids, show)
+ report:write("\n<h1>", title, "</h1>\n");
+ report:write("<p>", tostring(#jids), " contacts</p>\n");
+ report:write("<ul>\n");
+ for _, jid in ipairs(jids) do
+ local contact = contacts[jid];
+ local client_link = (" <a href='%s'>%s</a>"):format(
+ escape(contacts[jid].node or "#"),
+ escape(contacts[jid].version or "Unknown client")
+ );
+ report:write(" <li>", escape(jid), client_link);
+
+ if show then
+ report:write("\n <ul>\n");
+ for _, field in ipairs(show) do
+ local friendly_field = field:gsub("^.", string.upper):gsub("_", " ");
+ local value = escape(contacts[jid][field] or "");
+ report:write((" "):rep(12), "<li>", friendly_field, ": ", value, "</li>\n");
+ end
+ report:write(" </ul>\n");
+ end
+
+ report:write("</li>\n");
+ end
+ report:write("</ul>\n");
+end
+
+local function no_caps_filter(jid)
+ return not contacts[jid].ver;
+end
+
+local function legacy_caps_filter(jid)
+ return contacts[jid].ver and not contacts[jid].hash_type;
+end
+
+local function valid_caps_filter(jid)
+ return not(legacy_caps_filter(jid))
+ and (contacts[jid].ver == contacts[jid].calculated_ver);
+end
+
+local function invalid_caps_filter(jid)
+ return not(legacy_caps_filter(jid)) and not(no_caps_filter(jid)) and not(valid_caps_filter(jid));
+end
+
+write_section("Valid caps", array.filter(contact_jids, valid_caps_filter));
+write_section("Invalid caps", array.filter(contact_jids, invalid_caps_filter), { "ver", "calculated_ver", "calculated_S" });
+write_section("No caps", array.filter(contact_jids, no_caps_filter));
+write_section("Legacy caps", array.filter(contact_jids, legacy_caps_filter), { "ver" });
+
+report:write("</body></html>");