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annotate mod_log_http/mod_log_http.lua @ 3866:c0df50ce96f0

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mod_rest: Handle internal http request errors early and then return Skips over attempted parsing of the payload which usually failed since the body is an error string like "connection refused", so this produced useless errors.
author Kim Alvefur <zash@zash.se>
date Sat, 25 Jan 2020 20:22:12 +0100
parents 3f44abfe7264
children 456b9f608fcf
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 module:set_global();
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2
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3 local http = require "net.http";
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4 local codes = require "net.http.codes";
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5 local json = require "util.json";
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6
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7 local log = assert(io.open(assert(module:get_option_string("log_http_file"), "Please supply log_http_file in the config"), "a+"));
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8
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9 local function append_request(id, req)
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10 local headers = {};
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11 for k, v in pairs(req.headers) do
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12 table.insert(headers, { name = k, value = v });
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13 end
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14 local queryString = {};
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15 if req.query then
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16 for _, pair in ipairs(http.formdecode(req.query)) do
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17 table.insert(queryString, pair);
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18 end
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19 end
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20 log:write("<<<", json.encode({
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21 id = id;
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22 type = "request";
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23 method = req.method;
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24 url = req.url;
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25 httpVersion = "HTTP/1.1";
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26 cookies = {};
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27 headers = headers;
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28 queryString = queryString;
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29 postData = req.body and {
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30 mimeType = req.headers["Content-Type"];
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31 text = req.body;
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32 } or nil;
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33 headersSize = -1;
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34 bodySize = -1;
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35 }), "\n");
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36 end
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37
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38 local function append_response(id, resp)
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39 local headers = {};
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40 for k, v in pairs(resp.headers) do
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41 table.insert(headers, { name = k, value = v });
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42 end
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43 log:write(">>>", json.encode({
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44 id = id;
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45 type = "response";
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46 status = resp.code;
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47 statusText = codes[resp.code];
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48 httpVersion = resp.httpversion;
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49 cookies = {};
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50 headers = headers;
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51 content = resp.body and {
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52 size = #resp.body;
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53 mimeType = resp.headers.content_type;
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54 text = resp.body;
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55 } or nil;
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56 headersSize = -1;
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57 bodySize = -1;
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58 }), "\n");
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59 end
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60
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61 module:hook_object_event(http.events, "request", function (event)
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62 module:log("warn", "Request to %s!", event.url);
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63 append_request(event.request.id, event.request);
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64 end);
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65
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66 module:hook_object_event(http.events, "request-connection-error", function (event)
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67 module:log("warn", "Failed to make request to %s!", event.url);
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68 end);
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69
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70 module:hook_object_event(http.events, "response", function (event)
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71 module:log("warn", "Received response %d from %s!", event.code, event.url);
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72 append_response(event.request.id, event.response);
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73 end);
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74
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75 function module.unload()
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76 log:close();
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77 end