src/server/safs/pathcheck.c

Wed, 26 Oct 2016 15:53:56 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Wed, 26 Oct 2016 15:53:56 +0200
changeset 118
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parent 100
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child 131
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permissions
-rw-r--r--

adds minimal cgi implementation

some env vars still missing
request body not supported yet

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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 2013 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include <ucx/string.h>
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30
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31 #include "pathcheck.h"
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32
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33 #include "../util/pblock.h"
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34 #include "../daemon/config.h"
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35 #include "../daemon/acl.h"
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36 #include "../daemon/acldata.h"
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37 #include "../daemon/session.h"
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38 #include "../daemon/vserver.h"
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39
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40 #include "../config/acl.h"
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41
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42 int require_auth(pblock *pb, Session *sn, Request *rq) {
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43 char *user = pblock_findkeyval(pb_key_auth_user, rq->vars);
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44
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45 if(user == NULL) {
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46 pblock_nvinsert(
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47 "www-authenticate",
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48 "Basic realm=\"Webserver\"",
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49 rq->srvhdrs);
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50
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51 protocol_status(sn, rq, PROTOCOL_UNAUTHORIZED, NULL);
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52 return REQ_ABORTED;
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53 }
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54
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55 return REQ_PROCEED;
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56 }
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57
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58 int require_access(pblock *pb, Session *sn, Request *rq) {
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59 char *mask_str = pblock_findval("mask", rq->vars);
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60 if(!mask_str) {
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61 log_ereport(LOG_MISCONFIG, "require-access: missing mask parameter");
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62 protocol_status(sn, rq, 500, NULL);
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63 return REQ_ABORTED;
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64 }
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66 uint32_t access_mask = 0;
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67 ssize_t n = 0;
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68 sstr_t *rights = sstrsplit(sstr(mask_str), sstrn(",", 1), &n);
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69 for(int i=0;i<n;i++) {
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70 sstr_t right = rights[i];
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71 access_mask = access_mask | accstr2int(right);
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72 }
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74 return REQ_PROCEED;
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75 }
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76
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77 int append_acl(pblock *pb, Session *sn, Request *rq) {
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78 const VirtualServer *vs = request_get_vs(rq);
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79
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80 WS_ASSERT(vs);
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81
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82 char *aclname = pblock_findval("acl", pb);
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83 if(aclname) {
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84 ACLList *acl = acl_get(vs->acls, aclname);
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85 if(!acl) {
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86 log_ereport(
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87 LOG_MISCONFIG,
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88 "append-acl: acl %s not found", aclname);
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89 protocol_status(sn, rq, 500, NULL);
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90 return REQ_ABORTED;
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91 }
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92
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93 acllist_append(sn, rq, acl);
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94 }
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95
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96 return REQ_PROCEED;
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97 }
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99
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100 int check_acl(pblock *pb, Session *sn, Request *rq) {
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101 int access_mask = ACL_READ_DATA; // TODO: check method and path
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102
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103 int ret = acl_evaluate(sn, rq, access_mask);
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104 if(ret == REQ_ABORTED) {
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105 // TODO: status, error, ...
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106 return REQ_ABORTED;
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107 }
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108
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109 return REQ_PROCEED;
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110 }

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