prosody-modules
e67081d1f835
mod_sentry/sentry.lib.lua

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mod_sentry/sentry.lib.lua @ 4285:e67081d1f835

mod_sentry: Support for including stack frames in exception events
author Matthew Wild <mwild1@gmail.com>
date Wed, 09 Dec 2020 15:15:17 +0000
parent 4284:b7045af1e5b7
child 4286:64f400a38a30
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 local hex = require "util.hex";
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2 local random = require "util.random";
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3 local url = require "socket.url";
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4 local datetime = require "util.datetime".datetime;
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5 local http = require 'net.http'
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6 local json = require "util.json";
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7 local errors = require "util.error";
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8 local promise = require "util.promise";
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9
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10 local unpack = unpack or table.unpack -- luacheck: ignore
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11
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12 local user_agent = ("prosody-mod-%s/%s"):format((module.name:gsub("%W", "-")), (prosody.version:gsub("[^%w.-]", "-")));
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13
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14 local function generate_event_id()
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15 return hex.to(random.bytes(16));
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16 end
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17
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18 local function get_endpoint(server, name)
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19 return ("%s/api/%d/%s/"):format(server.base_uri, server.project_id, name);
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20 end
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21
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22 -- Parse a DSN string
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23 -- https://develop.sentry.dev/sdk/overview/#parsing-the-dsn
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24 local function parse_dsn(dsn_string)
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25 local parsed = url.parse(dsn_string);
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26 if not parsed then
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27 return nil, "unable to parse dsn (url)";
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28 end
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29 local path, project_id = parsed.path:match("^(.*)/(%d+)$");
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30 if not path then
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31 return nil, "unable to parse dsn (path)";
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32 end
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33 local base_uri = url.build({
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34 scheme = parsed.scheme;
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35 host = parsed.host;
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36 port = parsed.port;
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37 path = path;
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38 });
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39 return {
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40 base_uri = base_uri;
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41 public_key = parsed.user;
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42 project_id = project_id;
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43 };
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44 end
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45
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46 local function get_error_data(instance_id, context)
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47 local data = {
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48 instance_id = instance_id;
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49 };
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50 for k, v in pairs(context) do
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51 data[k] = tostring(v);
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52 end
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53 return data;
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54 end
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55
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56 local function error_to_sentry_exception(e)
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57 local exception = {
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58 type = e.condition or (e.code and tostring(e.code)) or nil;
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59 value = e.text or tostring(e);
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60 context = e.source;
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61 mechanism = {
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62 type = "generic";
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63 description = "Prosody error object";
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64 synthetic = not not e.context.wrapped_error;
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65 data = get_error_data(e.instance_id, e.context);
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66 };
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67 };
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68 local traceback = e.context.traceback;
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69 if traceback and type(traceback) == "table" then
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70 local frames = {};
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71 for i = #traceback, 1 do
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72 local frame = traceback[i];
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73 table.insert(frames, {
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74 ["function"] = frame.info.name;
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75 filename = frame.info.short_src;
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76 lineno = frame.info.currentline;
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77 });
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78 end
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79 exception.frames = frames;
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80 end
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81 return exception;
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82 end
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83
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84 local sentry_event_methods = {};
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85 local sentry_event_mt = { __index = sentry_event_methods };
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86
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87 function sentry_event_methods:set(key, value)
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88 self.event[key] = value;
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89 return self;
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90 end
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91
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92 function sentry_event_methods:tag(tag_name, tag_value)
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93 local tags = self.event.tags;
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94 if not tags then
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95 tags = {};
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96 self.event.tags = tags;
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97 end
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98 if type(tag_name) == "string" then
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99 tags[tag_name] = tag_value;
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100 else
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101 for k, v in pairs(tag_name) do
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102 tags[k] = v;
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103 end
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104 end
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105 return self;
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106 end
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107
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108 function sentry_event_methods:extra(key, value)
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109 local extra = self.event.extra;
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110 if not extra then
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111 extra = {};
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112 self.event.extra = extra;
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113 end
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114 if type(key) == "string" then
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115 extra[key] = tostring(value);
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116 else
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117 for k, v in pairs(key) do
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118 extra[k] = tostring(v);
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119 end
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120 end
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121 return self;
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122 end
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123
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124 function sentry_event_methods:message(text)
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125 return self:set("message", { formatted = text });
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126 end
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127
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128 function sentry_event_methods:add_exception(e)
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129 if errors.is_err(e) then
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130 e = error_to_sentry_exception(e);
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131 elseif type(e) ~= "table" or not (e.type and e.value) then
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132 e = error_to_sentry_exception(errors.coerce(nil, e));
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133 end
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134
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135 local exception = self.event.exception;
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136 if not exception or not exception.values then
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137 exception = { values = {} };
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138 self.event.exception = exception;
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139 end
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140
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141 table.insert(exception.values, e);
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142
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143 return self;
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144 end
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145
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146 function sentry_event_methods:add_breadcrumb(crumb_timestamp, crumb_type, crumb_category, message, data)
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147 local crumbs = self.event.breadcrumbs;
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148 if not crumbs then
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149 crumbs = { values = {} };
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150 self.event.breadcrumbs = crumbs;
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151 end
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152
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153 local crumb = {
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154 timestamp = crumb_timestamp and datetime(crumb_timestamp) or self.timestamp;
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155 type = crumb_type;
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156 category = crumb_category;
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157 message = message;
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158 data = data;
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159 };
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160 table.insert(crumbs.values, crumb);
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161 return self;
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162 end
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163
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164 function sentry_event_methods:add_http_request_breadcrumb(http_request, message)
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165 local request_id_message = ("[Request %s]"):format(http_request.id);
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166 message = message and (request_id_message.." "..message) or request_id_message;
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167 return self:add_breadcrumb(http_request.time, "http", "net.http", message, {
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168 url = http_request.url;
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169 method = http_request.method or "GET";
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170 status_code = http_request.response and http_request.response.code or nil;
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171 });
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172 end
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173
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174 function sentry_event_methods:set_request(http_request)
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175 return self:set("request", {
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176 method = http_request.method;
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177 url = url.build(http_request.url);
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178 headers = http_request.headers;
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179 env = {
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180 REMOTE_ADDR = http_request.ip;
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181 };
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182 });
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183 end
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184
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185 function sentry_event_methods:send()
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186 return self.server:send(self.event);
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187 end
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188
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189 local sentry_mt = { }
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190 sentry_mt.__index = sentry_mt
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191
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192 local function new(conf)
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193 local server = assert(parse_dsn(conf.dsn));
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194 return setmetatable({
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195 server = server;
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196 endpoints = {
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197 store = get_endpoint(server, "store");
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198 };
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199 insecure = conf.insecure;
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200 tags = conf.tags or nil,
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201 extra = conf.extra or nil,
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202 server_name = conf.server_name or "undefined";
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203 logger = conf.logger;
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204 }, sentry_mt);
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205 end
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206
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207 local function resolve_sentry_response(response)
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208 if response.code == 200 and response.body then
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209 local data = json.decode(response.body);
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210 return data;
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211 end
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212 return promise.reject(response);
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213 end
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214
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215 function sentry_mt:send(event)
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216 local json_payload = json.encode(event);
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217 local response_promise, err = self:_request(self.endpoints.store, "application/json", json_payload);
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218
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219 if not response_promise then
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220 module:log("warn", "Failed to submit to Sentry: %s %s", err, json);
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221 return nil, err;
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222 end
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223
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224 return response_promise:next(resolve_sentry_response), event.event_id;
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225 end
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226
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227 function sentry_mt:_request(endpoint_url, body_type, body)
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228 local auth_header = ("Sentry sentry_version=7, sentry_client=%s, sentry_timestamp=%s, sentry_key=%s")
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229 :format(user_agent, datetime(), self.server.public_key);
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230
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231 return http.request(endpoint_url, {
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232 headers = {
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parents:
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233 ["X-Sentry-Auth"] = auth_header;
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parents:
diff changeset
234 ["Content-Type"] = body_type;
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235 ["User-Agent"] = user_agent;
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parents:
diff changeset
236 };
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parents:
diff changeset
237 insecure = self.insecure;
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238 body = body;
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parents:
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239 });
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parents:
diff changeset
240 end
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241
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242 function sentry_mt:event(level, source)
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parents:
diff changeset
243 local event = setmetatable({
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244 server = self;
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parents:
diff changeset
245 event = {
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parents:
diff changeset
246 event_id = generate_event_id();
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diff changeset
247 timestamp = datetime();
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248 platform = "lua";
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diff changeset
249 server_name = self.server_name;
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250 logger = source or self.logger;
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parents:
diff changeset
251 level = level;
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parents:
diff changeset
252 };
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parents:
diff changeset
253 }, sentry_event_mt);
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parents:
diff changeset
254 if self.tags then
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parents:
diff changeset
255 event:tag(self.tags);
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parents:
diff changeset
256 end
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parents:
diff changeset
257 if self.extra then
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diff changeset
258 event:extra(self.extra);
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parents:
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259 end
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parents:
diff changeset
260 return event;
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parents:
diff changeset
261 end
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parents:
diff changeset
262
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parents:
diff changeset
263 return {
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parents:
diff changeset
264 new = new;
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parents:
diff changeset
265 };