1 | using System; |
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2 | using System.Collections.Generic; |
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3 | using System.Linq; |
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4 | using System.Net; |
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5 | using System.Text.RegularExpressions; |
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6 | using AllocsFixes.JSON; |
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7 | using AllocsFixes.PersistentData; |
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8 | |
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9 | namespace AllocsFixes.NetConnections.Servers.Web.API { |
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10 | public class GetPlayerList : WebAPI { |
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11 | private static readonly Regex numberFilterMatcher = |
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12 | new Regex (@"^(>=|=>|>|<=|=<|<|==|=)?\s*([0-9]+(\.[0-9]*)?)$"); |
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13 | |
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14 | public override void HandleRequest (HttpListenerRequest req, HttpListenerResponse resp, WebConnection user, |
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15 | int permissionLevel) { |
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16 | AdminTools admTools = GameManager.Instance.adminTools; |
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17 | user = user ?? new WebConnection ("", "", 0L); |
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18 | |
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19 | bool bViewAll = WebConnection.CanViewAllPlayers (permissionLevel); |
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20 | |
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21 | // TODO: Sort (and filter?) prior to converting to JSON ... hard as how to get the correct column's data? (i.e. column name matches JSON object field names, not source data) |
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22 | |
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23 | int rowsPerPage = 25; |
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24 | if (req.QueryString ["rowsperpage"] != null) { |
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25 | int.TryParse (req.QueryString ["rowsperpage"], out rowsPerPage); |
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26 | } |
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27 | |
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28 | int page = 0; |
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29 | if (req.QueryString ["page"] != null) { |
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30 | int.TryParse (req.QueryString ["page"], out page); |
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31 | } |
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32 | |
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33 | int firstEntry = page * rowsPerPage; |
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34 | |
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35 | Players playersList = PersistentContainer.Instance.Players; |
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36 | |
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37 | List<JSONObject> playerList = new List<JSONObject> (); |
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38 | |
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39 | foreach (string sid in playersList.SteamIDs) { |
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40 | Player p = playersList [sid, false]; |
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41 | |
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42 | ulong player_steam_ID; |
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43 | if (!ulong.TryParse (sid, out player_steam_ID)) { |
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44 | player_steam_ID = 0L; |
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45 | } |
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46 | |
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47 | if (player_steam_ID == user.SteamID || bViewAll) { |
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48 | JSONObject pos = new JSONObject (); |
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49 | pos.Add ("x", new JSONNumber (p.LastPosition.x)); |
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50 | pos.Add ("y", new JSONNumber (p.LastPosition.y)); |
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51 | pos.Add ("z", new JSONNumber (p.LastPosition.z)); |
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52 | |
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53 | JSONObject pJson = new JSONObject (); |
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54 | pJson.Add ("steamid", new JSONString (sid)); |
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55 | pJson.Add ("entityid", new JSONNumber (p.EntityID)); |
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56 | pJson.Add ("ip", new JSONString (p.IP)); |
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57 | pJson.Add ("name", new JSONString (p.Name)); |
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58 | pJson.Add ("online", new JSONBoolean (p.IsOnline)); |
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59 | pJson.Add ("position", pos); |
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60 | |
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61 | pJson.Add ("totalplaytime", new JSONNumber (p.TotalPlayTime)); |
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62 | pJson.Add ("lastonline", |
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63 | new JSONString (p.LastOnline.ToUniversalTime ().ToString ("yyyy-MM-ddTHH:mm:ssZ"))); |
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64 | pJson.Add ("ping", new JSONNumber (p.IsOnline ? p.ClientInfo.ping : -1)); |
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65 | |
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66 | JSONBoolean banned; |
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67 | if (admTools != null) { |
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68 | banned = new JSONBoolean (admTools.IsBanned (sid)); |
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69 | } else { |
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70 | banned = new JSONBoolean (false); |
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71 | } |
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72 | |
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73 | pJson.Add ("banned", banned); |
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74 | |
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75 | playerList.Add (pJson); |
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76 | } |
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77 | } |
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78 | |
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79 | IEnumerable<JSONObject> list = playerList; |
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80 | |
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81 | foreach (string key in req.QueryString.AllKeys) { |
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82 | if (!string.IsNullOrEmpty (key) && key.StartsWith ("filter[")) { |
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83 | string filterCol = key.Substring (key.IndexOf ('[') + 1); |
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84 | filterCol = filterCol.Substring (0, filterCol.Length - 1); |
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85 | string filterVal = req.QueryString.Get (key).Trim (); |
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86 | |
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87 | list = ExecuteFilter (list, filterCol, filterVal); |
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88 | } |
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89 | } |
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90 | |
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91 | int totalAfterFilter = list.Count (); |
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92 | |
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93 | foreach (string key in req.QueryString.AllKeys) { |
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94 | if (!string.IsNullOrEmpty (key) && key.StartsWith ("sort[")) { |
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95 | string sortCol = key.Substring (key.IndexOf ('[') + 1); |
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96 | sortCol = sortCol.Substring (0, sortCol.Length - 1); |
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97 | string sortVal = req.QueryString.Get (key); |
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98 | |
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99 | list = ExecuteSort (list, sortCol, sortVal == "0"); |
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100 | } |
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101 | } |
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102 | |
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103 | list = list.Skip (firstEntry); |
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104 | list = list.Take (rowsPerPage); |
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105 | |
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106 | |
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107 | JSONArray playersJsResult = new JSONArray (); |
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108 | foreach (JSONObject jsO in list) { |
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109 | playersJsResult.Add (jsO); |
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110 | } |
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111 | |
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112 | JSONObject result = new JSONObject (); |
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113 | result.Add ("total", new JSONNumber (totalAfterFilter)); |
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114 | result.Add ("totalUnfiltered", new JSONNumber (playerList.Count)); |
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115 | result.Add ("firstResult", new JSONNumber (firstEntry)); |
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116 | result.Add ("players", playersJsResult); |
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117 | |
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118 | WriteJSON (resp, result); |
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119 | } |
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120 | |
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121 | private IEnumerable<JSONObject> ExecuteFilter (IEnumerable<JSONObject> _list, string _filterCol, |
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122 | string _filterVal) { |
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123 | if (_list.Count () == 0) { |
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124 | return _list; |
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125 | } |
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126 | |
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127 | if (_list.First ().ContainsKey (_filterCol)) { |
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128 | Type colType = _list.First () [_filterCol].GetType (); |
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129 | if (colType == typeof (JSONNumber)) { |
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130 | return ExecuteNumberFilter (_list, _filterCol, _filterVal); |
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131 | } |
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132 | |
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133 | if (colType == typeof (JSONBoolean)) { |
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134 | bool value = StringParsers.ParseBool (_filterVal); |
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135 | return _list.Where (line => ((JSONBoolean) line [_filterCol]).GetBool () == value); |
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136 | } |
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137 | |
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138 | if (colType == typeof (JSONString)) { |
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139 | // regex-match whole ^string$, replace * by .*, ? by .?, + by .+ |
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140 | _filterVal = _filterVal.Replace ("*", ".*").Replace ("?", ".?").Replace ("+", ".+"); |
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141 | _filterVal = "^" + _filterVal + "$"; |
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142 | |
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143 | //Log.Out ("GetPlayerList: Filter on String with Regex '" + _filterVal + "'"); |
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144 | Regex matcher = new Regex (_filterVal, RegexOptions.IgnoreCase); |
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145 | return _list.Where (line => matcher.IsMatch (((JSONString) line [_filterCol]).GetString ())); |
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146 | } |
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147 | } |
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148 | |
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149 | return _list; |
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150 | } |
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151 | |
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152 | |
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153 | private IEnumerable<JSONObject> ExecuteNumberFilter (IEnumerable<JSONObject> _list, string _filterCol, |
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154 | string _filterVal) { |
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155 | // allow value (exact match), =, ==, >=, >, <=, < |
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156 | Match filterMatch = numberFilterMatcher.Match (_filterVal); |
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157 | if (filterMatch.Success) { |
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158 | double value = StringParsers.ParseDouble (filterMatch.Groups [2].Value); |
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159 | NumberMatchType matchType; |
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160 | double epsilon = value / 100000; |
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161 | switch (filterMatch.Groups [1].Value) { |
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162 | case "": |
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163 | case "=": |
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164 | case "==": |
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165 | matchType = NumberMatchType.Equal; |
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166 | break; |
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167 | case ">": |
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168 | matchType = NumberMatchType.Greater; |
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169 | break; |
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170 | case ">=": |
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171 | case "=>": |
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172 | matchType = NumberMatchType.GreaterEqual; |
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173 | break; |
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174 | case "<": |
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175 | matchType = NumberMatchType.Lesser; |
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176 | break; |
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177 | case "<=": |
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178 | case "=<": |
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179 | matchType = NumberMatchType.LesserEqual; |
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180 | break; |
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181 | default: |
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182 | matchType = NumberMatchType.Equal; |
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183 | break; |
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184 | } |
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185 | |
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186 | return _list.Where (delegate (JSONObject line) { |
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187 | double objVal = ((JSONNumber) line [_filterCol]).GetDouble (); |
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188 | switch (matchType) { |
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189 | case NumberMatchType.Greater: |
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190 | return objVal > value; |
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191 | case NumberMatchType.GreaterEqual: |
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192 | return objVal >= value; |
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193 | case NumberMatchType.Lesser: |
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194 | return objVal < value; |
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195 | case NumberMatchType.LesserEqual: |
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196 | return objVal <= value; |
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197 | case NumberMatchType.Equal: |
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198 | default: |
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199 | return NearlyEqual (objVal, value, epsilon); |
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200 | } |
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201 | }); |
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202 | } |
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203 | |
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204 | Log.Out ("GetPlayerList: ignoring invalid filter for number-column '{0}': '{1}'", _filterCol, _filterVal); |
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205 | return _list; |
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206 | } |
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207 | |
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208 | |
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209 | private IEnumerable<JSONObject> ExecuteSort (IEnumerable<JSONObject> _list, string _sortCol, bool _ascending) { |
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210 | if (_list.Count () == 0) { |
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211 | return _list; |
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212 | } |
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213 | |
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214 | if (_list.First ().ContainsKey (_sortCol)) { |
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215 | Type colType = _list.First () [_sortCol].GetType (); |
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216 | if (colType == typeof (JSONNumber)) { |
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217 | if (_ascending) { |
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218 | return _list.OrderBy (line => ((JSONNumber) line [_sortCol]).GetDouble ()); |
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219 | } |
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220 | |
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221 | return _list.OrderByDescending (line => ((JSONNumber) line [_sortCol]).GetDouble ()); |
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222 | } |
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223 | |
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224 | if (colType == typeof (JSONBoolean)) { |
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225 | if (_ascending) { |
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226 | return _list.OrderBy (line => ((JSONBoolean) line [_sortCol]).GetBool ()); |
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227 | } |
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228 | |
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229 | return _list.OrderByDescending (line => ((JSONBoolean) line [_sortCol]).GetBool ()); |
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230 | } |
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231 | |
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232 | if (_ascending) { |
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233 | return _list.OrderBy (line => line [_sortCol].ToString ()); |
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234 | } |
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235 | |
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236 | return _list.OrderByDescending (line => line [_sortCol].ToString ()); |
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237 | } |
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238 | |
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239 | return _list; |
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240 | } |
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241 | |
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242 | |
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243 | private bool NearlyEqual (double a, double b, double epsilon) { |
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244 | double absA = Math.Abs (a); |
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245 | double absB = Math.Abs (b); |
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246 | double diff = Math.Abs (a - b); |
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247 | |
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248 | if (a == b) { |
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249 | return true; |
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250 | } |
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251 | |
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252 | if (a == 0 || b == 0 || diff < double.Epsilon) { |
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253 | return diff < epsilon; |
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254 | } |
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255 | |
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256 | return diff / (absA + absB) < epsilon; |
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257 | } |
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258 | |
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259 | private enum NumberMatchType { |
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260 | Equal, |
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261 | Greater, |
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262 | GreaterEqual, |
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263 | Lesser, |
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264 | LesserEqual |
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265 | } |
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266 | } |
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267 | } |
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