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1 | <?php |
2 | |
3 | /** |
4 | ** addressbook.php |
5 | ** |
6 | ** Functions and classes for the addressbook system. |
7 | ** |
8 | **/ |
9 | |
10 | $addressbook_php = true; |
11 | |
12 | // Include backends here. |
13 | include("../functions/abook_local_file.php"); |
14 | include("../functions/abook_ldap_server.php"); |
15 | |
16 | // Create and initialize an addressbook object. |
17 | // Returns the created object |
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18 | function addressbook_init($showerr = true, $onlylocal = false) { |
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19 | global $data_dir, $username, $ldap_server; |
20 | |
21 | // Create a new addressbook object |
22 | $abook = new AddressBook; |
23 | |
24 | // Always add a local backend |
25 | $filename = sprintf("%s%s.abook", $data_dir, $username); |
26 | $r = $abook->add_backend("local_file", Array("filename" => $filename, |
27 | "create" => true)); |
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28 | if(!$r && $showerr) { |
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29 | printf(_("Error opening file %s"), $filename); |
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30 | exit; |
31 | } |
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32 | |
33 | if($onlylocal) |
34 | return $abook; |
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35 | |
36 | // Load configured LDAP servers |
37 | reset($ldap_server); |
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38 | while(list($key,$param) = each($ldap_server)) { |
39 | if(is_array($param)) { |
40 | $r = $abook->add_backend("ldap_server", $param); |
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41 | if(!$r && $showerr) { |
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42 | printf(" "._("Error initializing LDAP server %s:")."<BR>\n", |
43 | $param["host"]); |
44 | printf(" ".$abook->error); |
45 | exit; |
46 | } |
47 | } |
48 | } |
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49 | |
50 | // Return the initialized object |
51 | return $abook; |
52 | } |
53 | |
54 | |
55 | |
56 | /** |
57 | ** This is the main address book class that connect all the |
58 | ** backends and provide services to the functions above. |
59 | ** |
60 | **/ |
61 | class AddressBook { |
62 | var $backends = array(); |
63 | var $numbackends = 0; |
64 | var $error = ""; |
65 | |
66 | // Constructor function. |
67 | function AddressBook() { |
68 | } |
69 | |
70 | // Return an array of backends of a given type, |
71 | // or all backends if no type is specified. |
72 | function get_backend_list($type = "") { |
73 | $ret = array(); |
74 | for($i = 1 ; $i <= $this->numbackends ; $i++) { |
75 | if(empty($type) || $type == $this->backends[$i]->btype) { |
76 | array_push($ret, &$this->backends[$i]); |
77 | } |
78 | } |
79 | return $ret; |
80 | } |
81 | |
82 | |
83 | // ========================== Public ======================== |
84 | |
85 | // Add a new backend. $backend is the name of a backend |
86 | // (without the abook_ prefix), and $param is an optional |
87 | // mixed variable that is passed to the backend constructor. |
88 | // See each of the backend classes for valid parameters. |
89 | function add_backend($backend, $param = "") { |
90 | $backend_name = "abook_".$backend; |
91 | eval("\$newback = new $backend_name(\$param);"); |
92 | if(!empty($newback->error)) { |
93 | $this->error = $newback->error; |
94 | return false; |
95 | } |
96 | |
97 | $this->numbackends++; |
98 | |
99 | $newback->bnum = $this->numbackends; |
100 | $this->backends[$this->numbackends] = $newback; |
101 | return $this->numbackends; |
102 | } |
103 | |
104 | |
105 | // Return a list of addresses matching expression in |
106 | // all backends of a given type. |
107 | function search($expression, $btype = "") { |
108 | $ret = array(); |
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109 | $this->error = ""; |
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110 | |
111 | $sel = $this->get_backend_list($btype); |
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112 | $failed = 0; |
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113 | for($i = 0 ; $i < sizeof($sel) ; $i++) { |
114 | $backend = &$sel[$i]; |
115 | $backend->error = ""; |
116 | $res = $backend->search($expression); |
117 | if(is_array($res)) { |
118 | $ret = array_merge($ret, $res); |
119 | } else { |
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120 | $this->error = $this->error . "<br>\n". $backend->error; |
121 | $failed++; |
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122 | } |
123 | } |
124 | |
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125 | // Only fail if all backends failed |
126 | if($failed >= sizeof($sel)) |
127 | return false; |
128 | |
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129 | return $ret; |
130 | } |
131 | |
132 | |
133 | // Return a sorted search |
134 | function s_search($expression, $btype = "") { |
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135 | |
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136 | $ret = $this->search($expression, $btype); |
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137 | if(!is_array($ret)) |
138 | return $ret; |
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139 | |
140 | // Inline function - Not nice, but still.. |
141 | function cmp($a,$b) { |
142 | if($a["backend"] > $b["backend"]) |
143 | return 1; |
144 | else if($a["backend"] < $b["backend"]) |
145 | return -1; |
146 | |
147 | return (strtolower($a["name"]) > strtolower($b["name"])) ? 1 : -1; |
148 | } |
149 | |
150 | usort($ret, 'cmp'); |
151 | return $ret; |
152 | } |
153 | |
154 | |
155 | // Lookup an address by alias. Only possible in |
156 | // local backends. |
157 | function lookup($alias) { |
158 | $ret = array(); |
159 | |
160 | $sel = $this->get_backend_list("local"); |
161 | for($i = 0 ; $i < sizeof($sel) ; $i++) { |
162 | $backend = &$sel[$i]; |
163 | $backend->error = ""; |
164 | $res = $backend->lookup($alias); |
165 | if(is_array($res)) { |
166 | return $res; |
167 | } else { |
168 | $this->error = $backend->error; |
169 | return false; |
170 | } |
171 | } |
172 | |
173 | return $ret; |
174 | } |
175 | |
176 | |
177 | // Return all addresses |
178 | function list_addr() { |
179 | $ret = array(); |
180 | |
181 | $sel = $this->get_backend_list("local"); |
182 | for($i = 0 ; $i < sizeof($sel) ; $i++) { |
183 | $backend = &$sel[$i]; |
184 | $backend->error = ""; |
185 | $res = $backend->list_addr(); |
186 | if(is_array($res)) { |
187 | $ret = array_merge($ret, $res); |
188 | } else { |
189 | $this->error = $backend->error; |
190 | return false; |
191 | } |
192 | } |
193 | |
194 | return $ret; |
195 | } |
196 | |
197 | |
198 | // Create a new address from $userdata, in backend $bnum. |
199 | // Return the backend number that the/ address was added |
200 | // to, or false if it failed. |
201 | function add($userdata, $bnum) { |
202 | |
203 | // Validate data |
204 | if(!is_array($userdata)) { |
205 | $this->error = _("Invalid input data"); |
206 | return false; |
207 | } |
208 | if(empty($userdata["fullname"]) && |
209 | empty($userdata["lastname"])) { |
210 | $this->error = _("Name is missing"); |
211 | return false; |
212 | } |
213 | if(empty($userdata["email"])) { |
214 | $this->error = _("E-mail address is missing"); |
215 | return false; |
216 | } |
217 | if(empty($userdata["nickname"])) { |
218 | $userdata["nickname"] = $userdata["email"]; |
219 | } |
220 | |
221 | // Check that specified backend accept new entries |
222 | if(!$this->backends[$bnum]->writeable) { |
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223 | $this->error = _("Addressbook is read-only"); |
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224 | return false; |
225 | } |
226 | |
227 | // Add address to backend |
228 | $res = $this->backends[$bnum]->add($userdata); |
229 | if($res) { |
230 | return $bnum; |
231 | } else { |
232 | $this->error = $this->backends[$bnum]->error; |
233 | return false; |
234 | } |
235 | |
236 | return false; // Not reached |
237 | } |
238 | |
239 | } |
240 | |
241 | |
242 | /** |
243 | ** Generic backend that all other backends extend |
244 | **/ |
245 | class addressbook_backend { |
246 | |
247 | // Variables that all backends must provide. |
248 | var $btype = "dummy"; |
249 | var $bname = "dummy"; |
250 | var $sname = "Dummy backend"; |
251 | |
252 | // Variables common for all backends, but that |
253 | // should not be changed by the backends. |
254 | var $bnum = -1; |
255 | var $error = ""; |
256 | var $writeable = false; |
257 | |
258 | function set_error($string) { |
259 | $this->error = "[" . $this->sname . "] " . $string; |
260 | return false; |
261 | } |
262 | |
263 | |
264 | // ========================== Public ======================== |
265 | |
266 | function search($expression) { |
267 | $this->set_error("search not implemented"); |
268 | return false; |
269 | } |
270 | |
271 | function lookup($alias) { |
272 | $this->set_error("lookup not implemented"); |
273 | return false; |
274 | } |
275 | |
276 | function list_addr() { |
277 | $this->set_error("list_addr not implemented"); |
278 | return false; |
279 | } |
280 | |
281 | function add($userdata) { |
282 | $this->set_error("add not implemented"); |
283 | return false; |
284 | } |
285 | |
286 | } |
287 | |
288 | ?> |