src/server/safs/auth.c

Sun, 15 Sep 2024 09:47:36 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 15 Sep 2024 09:47:36 +0200
changeset 558
0e79e17c70e2
parent 467
4d038bc6f86e
permissions
-rw-r--r--

improve sessionhandler trace logging

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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 "../public/auth.h"
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37 #include "../daemon/config.h"
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38 #include "../daemon/session.h"
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39
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40 #include "auth.h"
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41
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42
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43 /* ------------------------------ _uudecode ------------------------------- */
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44
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45 static const unsigned char pr2six[256] = {
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46 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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47 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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48 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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49 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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50 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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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 64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
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53 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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54 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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55 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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56 64,64,64,64,64,64,64,64,64,64,64,64,64
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57 };
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58
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59 char *_uudecode(pool_handle_t *pool, char *bufcoded) {
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60 register char *bufin = bufcoded;
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61 register unsigned char *bufout;
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62 register int nprbytes;
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63 unsigned char *bufplain;
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64 int nbytesdecoded;
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65
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66 /* Find the length */
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67 while(pr2six[(int)*(bufin++)] <= 63);
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68 nprbytes = bufin - bufcoded - 1;
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69 nbytesdecoded = ((nprbytes+3)/4) * 3;
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70
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71 bufout = pool_malloc(pool, nbytesdecoded + 1);
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72 bufplain = bufout;
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73
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74 bufin = bufcoded;
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75
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76 while (nprbytes > 0) {
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77 *(bufout++) = (unsigned char)
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78 (pr2six[(int)(*bufin)] << 2 | pr2six[(int)bufin[1]] >> 4);
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79 *(bufout++) = (unsigned char)
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80 (pr2six[(int)bufin[1]] << 4 | pr2six[(int)bufin[2]] >> 2);
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81 *(bufout++) = (unsigned char)
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82 (pr2six[(int)bufin[2]] << 6 | pr2six[(int)bufin[3]]);
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83 bufin += 4;
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84 nprbytes -= 4;
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85 }
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86
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87 if(nprbytes & 03) {
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88 if(pr2six[(int)bufin[-2]] > 63)
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89 nbytesdecoded -= 2;
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90 else
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91 nbytesdecoded -= 1;
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92 }
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93 bufplain[nbytesdecoded] = '\0';
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94
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95 return (char *)bufplain;
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96 }
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97
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98 int basicauth_getuser(Session *sn, Request *rq, char **user, char **pw) {
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99 char *auth = NULL;
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100 *user = NULL;
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101 *pw = NULL;
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102 char *u;
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103 char *p;
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104
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105 if(request_header("authorization", &auth, sn, rq) == REQ_ABORTED) {
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106 return REQ_ABORTED;
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107 }
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108
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109 if(!auth) {
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110 return REQ_NOACTION;
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111 }
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112
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113 /* Skip leading whitespace */
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114 while(*auth && (*auth == ' '))
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115 ++auth;
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116 if(!(*auth)) {
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117 protocol_status(sn, rq, PROTOCOL_FORBIDDEN, NULL);
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118 return REQ_ABORTED;
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119 }
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120
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121 /* Verify correct type */
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122 if((strlen(auth) < 6) || strncasecmp(auth, "basic ", 6)) {
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123 return REQ_NOACTION;
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124 }
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125
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126 /* Skip whitespace */
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127 auth += 6;
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128 while(*auth && (*auth == ' ')) {
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129 ++auth;
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130 }
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131
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132 if(!*auth) {
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133 return REQ_NOACTION;
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134 }
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135
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136 /* Uuencoded user:password now */
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137 if(!(u = _uudecode(sn->pool, auth))) {
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138 return REQ_NOACTION;
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139 }
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140
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141 if(!(p = strchr(u, ':'))) {
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142 pool_free(sn->pool, u);
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143 return REQ_NOACTION;
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144 }
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145 *p++ = '\0';
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146
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147 *user = u;
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diff changeset
148 *pw = p;
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diff changeset
149
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diff changeset
150 return REQ_PROCEED;
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parents: 49
diff changeset
151 }
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diff changeset
152
23
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153 /* ------------------------------ auth_basic ------------------------------ */
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154
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diff changeset
155 int auth_basic(pblock *param, Session *sn, Request *rq)
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parents:
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156 {
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157 char *pwfile, *grpfile, *type, *auth, *user, *pw;
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158 char *pwfn, *grpfn;
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diff changeset
159 pblock *npb;
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parents:
diff changeset
160 pb_param *pp;
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parents:
diff changeset
161 int ret;
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parents:
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162
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diff changeset
163 /* Although this is authorization (which is not cacheable) the
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164 * check is not actually done until we call require-auth. So
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165 * this part is cacheable; require-auth can be cacheable if the
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166 * user has limited the auth to only affect a certain set of
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167 * paths.
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parents:
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168 */
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169 rq->directive_is_cacheable = 1;
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170
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171 type = pblock_findval("auth-type", param);
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172 pwfile = pblock_findval("userdb", param);
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diff changeset
173 grpfile = pblock_findval("groupdb", param);
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174 pwfn = pblock_findval("userfn", param);
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175 grpfn = pblock_findval("groupfn", param);
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176
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177 if((!type) || (!pwfile) || (!pwfn) || (grpfile && !grpfn)) {
77
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178 log_ereport(LOG_MISCONFIG, "basic-auth: missing parameter");
23
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179 protocol_status(sn, rq, PROTOCOL_SERVER_ERROR, NULL);
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180 return REQ_ABORTED;
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181 }
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182
51
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183 ret = basicauth_getuser(sn, rq, &user, &pw);
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184 if(ret != REQ_PROCEED) {
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185 return ret;
23
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186 }
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187
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188 npb = pblock_create(4);
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189 pblock_nvinsert("user", user, npb);
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190 pblock_nvinsert("pw", pw, npb);
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191 pblock_nvinsert("userdb", pwfile, npb);
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192 if(grpfile)
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193 pblock_nvinsert("groupdb", grpfile, npb);
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194 pblock_nvinsert("fn", pwfn, npb);
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195
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196 if ((ret = func_exec(npb, sn, rq)) != REQ_PROCEED)
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197 {
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198 goto bye;
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parents:
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199 }
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parents:
diff changeset
200
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201 pblock_nvinsert("auth-type", "basic", rq->vars);
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202 pblock_nvinsert("auth-user", user, rq->vars);
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parents:
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203 pblock_nvinsert("auth-db", pwfile, rq->vars);
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204 #if defined(XP_WIN32) || defined(MCC_ADMSERV)
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parents:
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205 /* MLM - the admin server needs this password information,
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parents:
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206 * so I'm putting it back */
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207 pblock_nvinsert("auth-password", pw, rq->vars);
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parents:
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208 #endif /* XP_WIN32 */
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parents:
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209
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parents:
diff changeset
210 if(grpfile) {
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parents:
diff changeset
211 pblock_nvinsert("groupdb", grpfile, npb);
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parents:
diff changeset
212 pp = pblock_find("fn", npb);
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parents:
diff changeset
213 free(pp->value);
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parents:
diff changeset
214 pp->value = strdup(grpfn);
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parents:
diff changeset
215
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parents:
diff changeset
216 if( (ret = func_exec(npb, sn, rq)) != REQ_PROCEED )
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parents:
diff changeset
217 goto bye;
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parents:
diff changeset
218 }
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parents:
diff changeset
219 ret = REQ_PROCEED;
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parents:
diff changeset
220 bye:
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parents:
diff changeset
221 pblock_free(npb);
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parents:
diff changeset
222 return ret;
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parents:
diff changeset
223 }
38
d07810b02147 added ldap authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 23
diff changeset
224
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parents: 23
diff changeset
225 int auth_db(pblock *param, Session *sn, Request *rq) {
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parents: 23
diff changeset
226 char *db;
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parents: 23
diff changeset
227 char *user;
51
b28cf69f42e8 added acls
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parents: 49
diff changeset
228 char *pw;
38
d07810b02147 added ldap authentication
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parents: 23
diff changeset
229
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parents: 23
diff changeset
230 db = pblock_findval("db", param);
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parents: 23
diff changeset
231
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parents: 23
diff changeset
232 if(!db) {
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parents: 23
diff changeset
233 // TODO: log error
77
f1cff81e425a some fixes
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parents: 62
diff changeset
234 log_ereport(LOG_MISCONFIG, "basic-auth: missing db parameter");
38
d07810b02147 added ldap authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 23
diff changeset
235 protocol_status(sn, rq, PROTOCOL_SERVER_ERROR, NULL);
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parents: 23
diff changeset
236 return REQ_ABORTED;
d07810b02147 added ldap authentication
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parents: 23
diff changeset
237 }
d07810b02147 added ldap authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 23
diff changeset
238
51
b28cf69f42e8 added acls
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 49
diff changeset
239 int ret = basicauth_getuser(sn, rq, &user, &pw);
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parents: 49
diff changeset
240 if(ret != REQ_PROCEED) {
b28cf69f42e8 added acls
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 49
diff changeset
241 return ret;
38
d07810b02147 added ldap authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 23
diff changeset
242 }
d07810b02147 added ldap authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 23
diff changeset
243
d07810b02147 added ldap authentication
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diff changeset
244 // get auth db
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parents: 23
diff changeset
245 ServerConfiguration *config = session_get_config(sn);
415
d938228c382e switch from ucx 2 to 3
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parents: 77
diff changeset
246 AuthDB *authdb = cxMapGet(config->authdbs, cx_hash_key_str(db));
38
d07810b02147 added ldap authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 23
diff changeset
247
467
4d038bc6f86e refactore ldap_auth to use resource pools
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
248 User *auth_user = authdb->get_user(authdb, sn, rq, user);
38
d07810b02147 added ldap authentication
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parents: 23
diff changeset
249 if(auth_user && !auth_user->verify_password(auth_user, pw)) {
d07810b02147 added ldap authentication
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parents: 23
diff changeset
250 fprintf(stderr, "authdb user not authenticated: %s\n", user);
d07810b02147 added ldap authentication
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parents: 23
diff changeset
251 free(user);
48
37a512d7b8f6 fixed some memory leaks
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 38
diff changeset
252 auth_user->free(auth_user);
38
d07810b02147 added ldap authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 23
diff changeset
253 return REQ_NOACTION;
d07810b02147 added ldap authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 23
diff changeset
254 }
d07810b02147 added ldap authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 23
diff changeset
255
d07810b02147 added ldap authentication
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 23
diff changeset
256
d07810b02147 added ldap authentication
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parents: 23
diff changeset
257 pblock_nvinsert("auth-type", "basic", rq->vars);
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parents: 23
diff changeset
258 pblock_nvinsert("auth-user", user, rq->vars);
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parents: 23
diff changeset
259 pblock_nvinsert("auth-db", db, rq->vars);
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parents: 23
diff changeset
260
49
1fd94945796e some fixes
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parents: 48
diff changeset
261 if(auth_user) {
1fd94945796e some fixes
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parents: 48
diff changeset
262 auth_user->free(auth_user);
1fd94945796e some fixes
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parents: 48
diff changeset
263 }
1fd94945796e some fixes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 48
diff changeset
264
38
d07810b02147 added ldap authentication
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parents: 23
diff changeset
265 return REQ_PROCEED;
d07810b02147 added ldap authentication
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parents: 23
diff changeset
266 }

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