Mono.Zeroconf – Blame information for rev 1
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1 | office | 1 | // |
2 | // RegisterService.cs |
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3 | // |
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4 | // Authors: |
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5 | // Aaron Bockover <abockover@novell.com> |
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6 | // |
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7 | // Copyright (C) 2007 Novell, Inc (http://www.novell.com) |
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8 | // |
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9 | // Permission is hereby granted, free of charge, to any person obtaining |
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10 | // a copy of this software and associated documentation files (the |
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11 | // "Software"), to deal in the Software without restriction, including |
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12 | // without limitation the rights to use, copy, modify, merge, publish, |
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13 | // distribute, sublicense, and/or sell copies of the Software, and to |
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14 | // permit persons to whom the Software is furnished to do so, subject to |
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15 | // the following conditions: |
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16 | // |
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17 | // The above copyright notice and this permission notice shall be |
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18 | // included in all copies or substantial portions of the Software. |
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19 | // |
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20 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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21 | // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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22 | // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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23 | // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
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24 | // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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25 | // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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26 | // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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27 | // |
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28 | |||
29 | using System; |
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30 | using AV=Avahi; |
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31 | |||
32 | namespace Mono.Zeroconf.Providers.Avahi |
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33 | { |
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34 | public class RegisterService : IRegisterService |
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35 | { |
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36 | private string name; |
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37 | private string regtype; |
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38 | private string reply_domain; |
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39 | private short port; |
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40 | private ITxtRecord txt_record; |
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41 | |||
42 | private AV.Client client; |
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43 | private AV.EntryGroup entry_group; |
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44 | private object eg_mutex = new object(); |
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45 | |||
46 | public event RegisterServiceEventHandler Response; |
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47 | |||
48 | public RegisterService() |
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49 | { |
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50 | client = new AV.Client(); |
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51 | } |
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52 | |||
53 | public void Register() |
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54 | { |
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55 | lock(eg_mutex) { |
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56 | if(entry_group != null) { |
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57 | entry_group.Reset(); |
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58 | } else { |
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59 | entry_group = new AV.EntryGroup(client); |
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60 | entry_group.StateChanged += OnEntryGroupStateChanged; |
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61 | } |
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62 | |||
63 | try { |
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64 | string [] rendered_txt_record = null; |
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65 | |||
66 | if(txt_record != null && txt_record.Count > 0) { |
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67 | rendered_txt_record = new string[txt_record.Count]; |
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68 | for(int i = 0; i < txt_record.Count; i++) { |
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69 | TxtRecordItem item = txt_record.GetItemAt(i); |
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70 | rendered_txt_record[i] = String.Format("{0}={1}", |
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71 | item.Key, item.ValueString); |
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72 | } |
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73 | } |
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74 | |||
75 | entry_group.AddService(name, regtype, reply_domain, (ushort)port, rendered_txt_record); |
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76 | entry_group.Commit(); |
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77 | } catch(AV.ClientException e) { |
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78 | if(e.ErrorCode == AV.ErrorCode.Collision && OnResponse(e.ErrorCode)) { |
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79 | return; |
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80 | } else { |
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81 | throw e; |
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82 | } |
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83 | } |
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84 | } |
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85 | } |
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86 | |||
87 | public void Dispose() |
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88 | { |
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89 | lock(eg_mutex) { |
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90 | if(entry_group == null) { |
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91 | return; |
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92 | } |
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93 | |||
94 | entry_group.Reset(); |
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95 | entry_group.Dispose(); |
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96 | entry_group = null; |
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97 | } |
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98 | } |
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99 | |||
100 | private void OnEntryGroupStateChanged(object o, AV.EntryGroupStateArgs args) |
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101 | { |
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102 | switch(args.State) { |
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103 | case AV.EntryGroupState.Collision: |
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104 | if(!OnResponse(AV.ErrorCode.Collision)) { |
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105 | throw new ApplicationException(); |
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106 | } |
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107 | break; |
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108 | case AV.EntryGroupState.Failure: |
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109 | if(!OnResponse(AV.ErrorCode.Failure)) { |
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110 | throw new ApplicationException(); |
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111 | } |
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112 | break; |
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113 | case AV.EntryGroupState.Established: |
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114 | OnResponse(AV.ErrorCode.Ok); |
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115 | break; |
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116 | } |
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117 | } |
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118 | |||
119 | protected virtual bool OnResponse(AV.ErrorCode errorCode) |
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120 | { |
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121 | RegisterServiceEventArgs args = new RegisterServiceEventArgs(); |
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122 | |||
123 | args.Service = this; |
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124 | args.IsRegistered = false; |
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125 | args.ServiceError = AvahiUtils.ErrorCodeToServiceError(errorCode); |
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126 | |||
127 | if(errorCode == AV.ErrorCode.Ok) { |
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128 | args.IsRegistered = true; |
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129 | } |
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130 | |||
131 | RegisterServiceEventHandler handler = Response; |
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132 | if(handler != null) { |
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133 | handler(this, args); |
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134 | return true; |
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135 | } else { |
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136 | return false; |
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137 | } |
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138 | } |
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139 | |||
140 | public string Name { |
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141 | get { return name; } |
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142 | set { name = value; } |
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143 | } |
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144 | |||
145 | public string RegType { |
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146 | get { return regtype; } |
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147 | set { regtype = value; } |
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148 | } |
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149 | |||
150 | public string ReplyDomain { |
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151 | get { return reply_domain; } |
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152 | set { reply_domain = value; } |
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153 | } |
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154 | |||
155 | public short Port { |
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156 | get { return port; } |
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157 | set { port = value; } |
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158 | } |
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159 | |||
160 | public ITxtRecord TxtRecord { |
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161 | get { return txt_record; } |
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162 | set { txt_record = value; } |
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163 | } |
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164 | } |
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165 | } |