prosody
9d20fca6a485
util/error.lua

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util/error.lua @ 10369:9d20fca6a485

prosodyctl: Print friendly version of error messages
author Kim Alvefur <zash@zash.se>
date Fri, 01 Nov 2019 23:16:58 +0100
parent 10365:744ca71a49f7
child 10493:d9132e7412b8
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1 local error_mt = { __name = "error" };
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2
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3 function error_mt:__tostring()
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4 return ("error<%s:%s:%s>"):format(self.type, self.condition, self.text or "");
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5 end
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6
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7 local function is_err(e)
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8 return getmetatable(e) == error_mt;
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9 end
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10
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11 local function new(e, context, registry)
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12 local template = (registry and registry[e]) or e or {};
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13 return setmetatable({
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14 type = template.type or "cancel";
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15 condition = template.condition or "undefined-condition";
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16 text = template.text;
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17 code = template.code or 500;
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18
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19 context = context or template.context or { _error_id = e };
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20 }, error_mt);
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21 end
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22
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23 local function coerce(ok, err, ...)
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24 if ok or is_err(err) then
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25 return ok, err, ...;
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26 end
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27
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28 local new_err = setmetatable({
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29 native = err;
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30
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31 type = "cancel";
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32 condition = "undefined-condition";
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33 }, error_mt);
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34 return ok, new_err, ...;
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35 end
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36
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37 local function from_stanza(stanza, context)
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38 local error_type, condition, text = stanza:get_error();
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39 return setmetatable({
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40 type = error_type or "cancel";
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41 condition = condition or "undefined-condition";
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42 text = text;
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43
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44 context = context or { stanza = stanza };
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45 }, error_mt);
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46 end
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47
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48 return {
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49 new = new;
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50 coerce = coerce;
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51 is_err = is_err;
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52 from_stanza = from_stanza;
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53 }