prosody
d043834f15d2
util/argparse.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/argparse.lua @ 13126:d043834f15d2

mod_http: Use RFC 7239 Forwarded header to find original client IP Prefer over X-Forwarded-* since it has an actual specification. Main practical difference is that Forwarded may carry more properties than only the IP address since it is a structured header. Since we parse it into an array, it is easier to do the logical thing and iterate backwards trough proxies until an untrusted one is encountered. Compare the handling of X-Forwarded-For. The 'secure' field now accounts for the full chain of proxies, which must be secure all the way to be considered secure.
author Kim Alvefur <zash@zash.se>
date Sat, 03 Jun 2023 17:10:04 +0200
parent 13058:766152afc1c9
child 13160:4ee9a912ceea
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10651
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1 local function parse(arg, config)
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
2 local short_params = config and config.short_params or {};
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
3 local value_params = config and config.value_params or {};
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
4
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
5 local parsed_opts = {};
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
7 if #arg == 0 then
12477
cc84682b8429 util.argparse: Revise 553c6204fe5b with a different approach
Matthew Wild <mwild1@gmail.com>
parents: 12475
diff changeset
8 return parsed_opts;
10651
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
9 end
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
10 while true do
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
11 local raw_param = arg[1];
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
12 if not raw_param then
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
13 break;
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
14 end
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
15
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
16 local prefix = raw_param:match("^%-%-?");
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
17 if not prefix then
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
18 break;
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
19 elseif prefix == "--" and raw_param == "--" then
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
20 table.remove(arg, 1);
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
21 break;
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
22 end
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
23 local param = table.remove(arg, 1):sub(#prefix+1);
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
24 if #param == 1 and short_params then
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
25 param = short_params[param];
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
26 end
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
27
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
28 if not param then
11846
6425dfa3de45 Merge 0.11->trunk
Kim Alvefur <zash@zash.se>
parents: 10936
diff changeset
29 return nil, "param-not-found", raw_param;
10651
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
30 end
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
31
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
32 local param_k, param_v;
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
33 if value_params[param] then
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
34 param_k, param_v = param, table.remove(arg, 1);
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
35 if not param_v then
10936
d770435f0f84 util.argparse: Move exiting and error to util.startup
Kim Alvefur <zash@zash.se>
parents: 10651
diff changeset
36 return nil, "missing-value", raw_param;
10651
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
37 end
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
38 else
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
39 param_k, param_v = param:match("^([^=]+)=(.+)$");
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
40 if not param_k then
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
41 if param:match("^no%-") then
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
42 param_k, param_v = param:sub(4), false;
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
43 else
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
44 param_k, param_v = param, true;
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
45 end
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
46 end
13058
766152afc1c9 util.argparse: Translate '-' to '_' in long option names for convenience
Matthew Wild <mwild1@gmail.com>
parents: 12477
diff changeset
47 param_k = param_k:gsub("%-", "_");
10651
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
48 end
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
49 parsed_opts[param_k] = param_v;
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
50 end
12477
cc84682b8429 util.argparse: Revise 553c6204fe5b with a different approach
Matthew Wild <mwild1@gmail.com>
parents: 12475
diff changeset
51 for i = 1, #arg do
cc84682b8429 util.argparse: Revise 553c6204fe5b with a different approach
Matthew Wild <mwild1@gmail.com>
parents: 12475
diff changeset
52 parsed_opts[i] = arg[i];
cc84682b8429 util.argparse: Revise 553c6204fe5b with a different approach
Matthew Wild <mwild1@gmail.com>
parents: 12475
diff changeset
53 end
cc84682b8429 util.argparse: Revise 553c6204fe5b with a different approach
Matthew Wild <mwild1@gmail.com>
parents: 12475
diff changeset
54 return parsed_opts;
10651
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
55 end
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
56
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
57 return {
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
58 parse = parse;
1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
Kim Alvefur <zash@zash.se>
parents:
diff changeset
59 }