src/server/safs/auth.c

Thu, 23 Feb 2012 13:10:04 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Thu, 23 Feb 2012 13:10:04 +0100
changeset 24
1a7853a4257e
parent 23
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child 38
d07810b02147
permissions
-rw-r--r--

removed some NSPR dependencies

23
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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
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5 *
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6 * THE BSD LICENSE
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7 *
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions are met:
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10 *
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11 * Redistributions of source code must retain the above copyright notice, this
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12 * list of conditions and the following disclaimer.
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13 * Redistributions in binary form must reproduce the above copyright notice,
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14 * this list of conditions and the following disclaimer in the documentation
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15 * and/or other materials provided with the distribution.
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16 *
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17 * Neither the name of the nor the names of its contributors may be
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18 * used to endorse or promote products derived from this software without
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19 * specific prior written permission.
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20 *
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21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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25 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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32 */
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33
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34 #include <strings.h>
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35
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36 #include "auth.h"
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37
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38
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39 /* ------------------------------ _uudecode ------------------------------- */
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40
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41 const unsigned char pr2six[256]={
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42 64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
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43 64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,62,64,64,64,63,
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44 52,53,54,55,56,57,58,59,60,61,64,64,64,64,64,64,64,0,1,2,3,4,5,6,7,8,9,
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45 10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,64,64,64,64,64,64,26,27,
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46 28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,
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47 64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
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48 64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
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49 64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
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50 64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
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51 64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
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52 64,64,64,64,64,64,64,64,64,64,64,64,64
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53 };
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54
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55 char *_uudecode(char *bufcoded)
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56 {
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57 register char *bufin = bufcoded;
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58 register unsigned char *bufout;
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59 register int nprbytes;
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60 unsigned char *bufplain;
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61 int nbytesdecoded;
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62
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63 /* Find the length */
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64 while(pr2six[(int)*(bufin++)] <= 63);
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65 nprbytes = bufin - bufcoded - 1;
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66 nbytesdecoded = ((nprbytes+3)/4) * 3;
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67
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68 bufout = (unsigned char *) malloc(nbytesdecoded + 1);
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69 bufplain = bufout;
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70
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71 bufin = bufcoded;
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72
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73 while (nprbytes > 0) {
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74 *(bufout++) = (unsigned char)
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75 (pr2six[(int)(*bufin)] << 2 | pr2six[(int)bufin[1]] >> 4);
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76 *(bufout++) = (unsigned char)
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77 (pr2six[(int)bufin[1]] << 4 | pr2six[(int)bufin[2]] >> 2);
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78 *(bufout++) = (unsigned char)
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79 (pr2six[(int)bufin[2]] << 6 | pr2six[(int)bufin[3]]);
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80 bufin += 4;
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81 nprbytes -= 4;
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82 }
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83
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84 if(nprbytes & 03) {
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85 if(pr2six[(int)bufin[-2]] > 63)
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86 nbytesdecoded -= 2;
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87 else
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88 nbytesdecoded -= 1;
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89 }
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90 bufplain[nbytesdecoded] = '\0';
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91
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92 return (char *)bufplain;
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93 }
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94
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95 /* ------------------------------ auth_basic ------------------------------ */
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96
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97 int auth_basic(pblock *param, Session *sn, Request *rq)
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98 {
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99 char *pwfile, *grpfile, *type, *auth, *user, *pw;
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100 char *pwfn, *grpfn;
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101 pblock *npb;
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102 pb_param *pp;
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103 int ret;
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104
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105 /* Although this is authorization (which is not cacheable) the
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106 * check is not actually done until we call require-auth. So
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107 * this part is cacheable; require-auth can be cacheable if the
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108 * user has limited the auth to only affect a certain set of
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109 * paths.
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110 */
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111 rq->directive_is_cacheable = 1;
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112
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113 if(request_header("authorization", &auth, sn, rq) == REQ_ABORTED)
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114 return REQ_ABORTED;
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115
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116 if(!auth)
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117 return REQ_NOACTION;
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118
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119 type = pblock_findval("auth-type", param);
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120 pwfile = pblock_findval("userdb", param);
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121 grpfile = pblock_findval("groupdb", param);
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122 pwfn = pblock_findval("userfn", param);
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123 grpfn = pblock_findval("groupfn", param);
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124
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125 if((!type) || (!pwfile) || (!pwfn) || (grpfile && !grpfn)) {
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126 // TODO: log error
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127 //log_error(LOG_MISCONFIG, "basic-auth", sn, rq,
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128 // XP_GetAdminStr(DBT_authError1));
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129 protocol_status(sn, rq, PROTOCOL_SERVER_ERROR, NULL);
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130 return REQ_ABORTED;
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131 }
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132
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133 /* Skip leading whitespace */
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134 while(*auth && (*auth == ' '))
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135 ++auth;
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136 if(!(*auth)) {
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137 protocol_status(sn, rq, PROTOCOL_FORBIDDEN, NULL);
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138 return REQ_ABORTED;
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139 }
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140
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141 /* Verify correct type */
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142 if((strlen(auth) < 6) || strncasecmp(auth, "basic ", 6))
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143 return REQ_NOACTION;
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144
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145 /* Skip whitespace */
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parents:
diff changeset
146 auth += 6;
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
147 while(*auth && (*auth == ' '))
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
148 ++auth;
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
149
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
150 if(!*auth)
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
151 return REQ_NOACTION;
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
152
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
153 /* Uuencoded user:password now */
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
154 if(!(user = _uudecode(auth)))
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
155 return REQ_NOACTION;
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
156
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
157 if(!(pw = strchr(user, ':'))) {
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
158 free(user);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
159 return REQ_NOACTION;
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
160 }
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
161 *pw++ = '\0';
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
162
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
163 npb = pblock_create(4);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
164 pblock_nvinsert("user", user, npb);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
165 pblock_nvinsert("pw", pw, npb);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
166 pblock_nvinsert("userdb", pwfile, npb);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
167 if(grpfile)
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
168 pblock_nvinsert("groupdb", grpfile, npb);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
169 pblock_nvinsert("fn", pwfn, npb);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
170
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
171 if ((ret = func_exec(npb, sn, rq)) != REQ_PROCEED)
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
172 {
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
173 goto bye;
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
174 }
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
175
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
176 pblock_nvinsert("auth-type", "basic", rq->vars);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
177 pblock_nvinsert("auth-user", user, rq->vars);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
178 pblock_nvinsert("auth-db", pwfile, rq->vars);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
179 #if defined(XP_WIN32) || defined(MCC_ADMSERV)
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
180 /* MLM - the admin server needs this password information,
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
181 * so I'm putting it back */
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
182 pblock_nvinsert("auth-password", pw, rq->vars);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
183 #endif /* XP_WIN32 */
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
184
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
185 if(grpfile) {
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
186 pblock_nvinsert("groupdb", grpfile, npb);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
187 pp = pblock_find("fn", npb);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
188 free(pp->value);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
189 pp->value = strdup(grpfn);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
190
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
191 if( (ret = func_exec(npb, sn, rq)) != REQ_PROCEED )
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
192 goto bye;
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
193 }
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
194 ret = REQ_PROCEED;
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
195 bye:
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
196 pblock_free(npb);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
197 free(user);
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
198 return ret;
a2c8fc23c90e Added basic authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
199 }

mercurial