src/server/daemon/webserver.c

Wed, 09 Nov 2022 11:51:19 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Wed, 09 Nov 2022 11:51:19 +0100
changeset 422
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parent 415
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child 426
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permissions
-rw-r--r--

extend serverconfig tokenizer to create separate tokens for brackets

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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
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30 #ifdef __gnu_linux__
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31 #define _GNU_SOURCE
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32 #endif
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33
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34 #include <stdio.h>
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35 #include <stdlib.h>
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36 #include <dlfcn.h>
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37 #include <grp.h>
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38 #include <sys/types.h>
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39 #include <sys/stat.h>
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40
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41 #include <openssl/bio.h>
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42 #include <openssl/ssl.h>
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43 #include <openssl/err.h>
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44
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45 #include "../public/nsapi.h"
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46 #include "../public/auth.h"
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47 #include "../util/systhr.h"
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48 #include "../util/pblock.h"
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49 #include "../util/util.h"
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50
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51 #include <cx/utils.h>
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52 #include <cx/printf.h>
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53 #include <cx/compare.h>
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54
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55 #include "../safs/common.h"
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56
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57 #include "func.h"
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58 #include "config.h"
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59 #include "configmanager.h"
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60 #include "httplistener.h"
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61 #include "webserver.h"
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62 #include "auth.h"
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63 #include "srvctrl.h"
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64 #include "resourcepool.h"
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66 extern struct FuncStruct webserver_funcs[];
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67
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68 static RestartCallback *atrestart;
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69
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70 int webserver_init() {
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71 // init NSPR
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72 systhread_init("webserver");
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73
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74 log_ereport(LOG_VERBOSE, "webserver_init");
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75
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76 // init ssl
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77 if(ws_init_ssl()) {
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78 log_ereport(LOG_FAILURE, "ssl init failed");
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79 return -1;
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80 }
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81
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82 // init NSAPI functions
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83 pblock_init_default_keys();
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84 atexit(pblock_free_default_keys);
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85 func_init();
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86 add_functions(webserver_funcs);
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87
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88 // init resource pools
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89 if(init_resource_pools()) {
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90 log_ereport(LOG_FAILURE, "resource pool init failed");
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91 return -1;
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92 }
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93
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94 // load init.conf
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95 if(load_init_conf("config/init.conf")) {
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96 return -1;
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97 }
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98
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99 // load server.conf
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100 // Only the runtime infos are stored in the ServerConfiguration at
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101 // this stage. The remaining configuration is loaded after the uid
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102 // is changed (if needed).
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103 init_configuration_manager();
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104 CfgManager mgr;
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105 if(cfgmgr_load_config(&mgr) != 0) {
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106 return -1;
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107 }
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108 log_ereport(LOG_VERBOSE, "cfgmgr_load_config stage 1 successful");
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109 ServerConfiguration *cfg = mgr.cfg;
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110
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111 // init caches
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112 auth_cache_init();
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113
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114 // init SAFs
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115 common_saf_init();
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116
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117 // set global vars
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118 conf_global_vars_s *vars = conf_getglobals();
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119
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120 WSBool changeuid = FALSE;
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121 uid_t ws_uid = geteuid();
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122 setpwent();
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123 char *pwbuf = malloc(DEF_PWBUF);
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124 vars->Vuserpw = malloc(sizeof(struct passwd));
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125 if(cfg->user.ptr) {
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126 if(!util_getpwnam(cfg->user.ptr, vars->Vuserpw, pwbuf, DEF_PWBUF)) {
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127 log_ereport(
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128 LOG_MISCONFIG,
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129 "user %s does not exist!",
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130 cfg->user.ptr);
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131 free(vars->Vuserpw);
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132 vars->Vuserpw = NULL;
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133 } else {
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134 changeuid = TRUE;
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135 }
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136 } else {
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137 if(!util_getpwuid(ws_uid, vars->Vuserpw, pwbuf, DEF_PWBUF)) {
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138 log_ereport(LOG_FAILURE, "webserver_init: cannot get passwd data");
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139 free(vars->Vuserpw);
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140 vars->Vuserpw = NULL;
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141 }
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142 }
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143 if(!vars->Vuserpw) {
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144 log_ereport(LOG_WARN, "globalvars->Vuserpw is null");
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145 }
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146
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147 // change uid
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148 if(changeuid && ws_uid == 0) {
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149 // a webserver user is set and we are root
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150 log_ereport(LOG_VERBOSE, "setgid(%d)", vars->Vuserpw->pw_gid);
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151 if(setgid(vars->Vuserpw->pw_gid) != 0) {
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152 log_ereport(
60
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153 LOG_FAILURE,
47
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154 "setgid(%d) failed",
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155 vars->Vuserpw->pw_gid);
391
80ee93a7d257 add verbose logging for setuid/setgid and abort startup if setuid fails
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diff changeset
156 return -1;
47
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157 } else {
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158 // setgid was successful
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159 // we need to call initgroups to have all group permissions
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160 if(initgroups(vars->Vuserpw->pw_name, vars->Vuserpw->pw_gid)!=0) {
60
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161 log_ereport(LOG_FAILURE, "initgroups failed");
391
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162 return -1;
47
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163 }
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164 }
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165
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166 // change the uid
391
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diff changeset
167 log_ereport(LOG_VERBOSE, "setuid(%d)", vars->Vuserpw->pw_uid);
47
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168 if(setuid(vars->Vuserpw->pw_uid)) {
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169 log_ereport(
60
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170 LOG_FAILURE,
47
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171 "setuid(%d) failed",
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172 vars->Vuserpw->pw_uid);
391
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173 return -1;
47
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174 }
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175 } else if(vars->Vuserpw) {
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176 log_ereport(
60
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177 LOG_WARN,
47
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178 "server must be started as root to change uid");
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179 }
66
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180
388
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181
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182 // now that the process is running as the correct user, we can load
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183 // the remaining config
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184 if(cfgmgr_apply_config(&mgr)) {
392
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185 log_ereport(LOG_FAILURE, "load config stage 2 failed");
388
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186 return -1;
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187 }
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188
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189
156
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190 // create tmp dir and pid file
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191 char *mkdir_cmd = NULL;
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192 asprintf(&mkdir_cmd, "mkdir -p %s", cfg->tmp.ptr);
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193 system(mkdir_cmd);
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194 free(mkdir_cmd);
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195
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196 char *pid_file_path = NULL;
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197 asprintf(&pid_file_path, "%s/pid", cfg->tmp.ptr);
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198 FILE *pidfile = fopen(pid_file_path, "w"); // TODO: check error
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199 pid_t pid = getpid();
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200 fprintf(pidfile, "%d", pid);
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201 fclose(pidfile);
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202 free(pid_file_path);
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203
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204 // create unix domain socket for server control
415
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205 cxmutstr tmp_priv = cx_asprintf("%s/private", cfg->tmp.ptr);
156
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206 // TODO: remove existing private dir
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207 if(mkdir(tmp_priv.ptr, S_IRWXU)) {
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208 if(errno == EEXIST) {
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209 if(chmod(tmp_priv.ptr, S_IRWXU)) {
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210 log_ereport(
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211 LOG_CATASTROPHE,
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212 "cannot change permissions of tmp dir %s:",
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213 tmp_priv.ptr,
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214 strerror(errno));
392
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215 return -1;
156
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216 }
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217 } else {
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218 log_ereport(
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219 LOG_CATASTROPHE,
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220 "cannot create tmp dir %s:",
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221 tmp_priv.ptr,
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222 strerror(errno));
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223 return -1;
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224 }
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225 }
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226
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227
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228 // create srvctrl unix domain socket
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229 // this socket is used for stop, reconfigure and other operations
158
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diff changeset
230 if(srvctrl_init(cfg)) {
156
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diff changeset
231 return -1;
158
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diff changeset
232 }
156
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diff changeset
233
146
a9591a91c004 fixes server user init
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234 //endpwent(); // TODO: close or not?
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235 //free(pwbuf); // TODO: ?
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236
1
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237 return 0;
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parents:
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238 }
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239
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240 int webserver_run() {
115
51d9a15eac98 improves logging
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diff changeset
241 log_ereport(LOG_VERBOSE, "webserver_run");
1
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242
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243 // start all http listener
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parents:
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244 if(start_all_listener() != 0) {
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245 fprintf(stderr, "Error: Cannot start http listener\n");
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parents:
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246 }
115
51d9a15eac98 improves logging
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diff changeset
247
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248 log_ereport(LOG_INFORM, "webserver started");
1
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parents:
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249
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250 return 0;
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parents:
diff changeset
251 }
9
30e51941a673 Added mod_jk dependencies
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parents: 6
diff changeset
252
68
f5102a892ed4 some fixes for mod_jk
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diff changeset
253 void webserver_shutdown() {
115
51d9a15eac98 improves logging
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diff changeset
254 log_ereport(LOG_INFORM, "webserver shutdown");
68
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diff changeset
255
158
77f4f0079428 adds reconfig and shutdown handler to srvctrl
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diff changeset
256 srvctrl_shutdown();
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diff changeset
257
68
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diff changeset
258 // execute restart callbacks
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diff changeset
259 RestartCallback *re = atrestart;
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diff changeset
260 while(re) {
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diff changeset
261 re->func(re->data);
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diff changeset
262 re = re->next;
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diff changeset
263 }
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diff changeset
264 }
9
30e51941a673 Added mod_jk dependencies
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parents: 6
diff changeset
265
158
77f4f0079428 adds reconfig and shutdown handler to srvctrl
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parents: 156
diff changeset
266 int webserver_reconfig() {
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diff changeset
267 if(cfgmgr_load_config(NULL) != 0) {
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diff changeset
268 return -1;
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diff changeset
269 }
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diff changeset
270 // start newly created listeners
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diff changeset
271 start_all_listener();
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diff changeset
272
77f4f0079428 adds reconfig and shutdown handler to srvctrl
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diff changeset
273 return 0;
156
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diff changeset
274 }
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parents: 154
diff changeset
275
9
30e51941a673 Added mod_jk dependencies
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parents: 6
diff changeset
276 void webserver_atrestart(void (*fn)(void *), void *data) {
68
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diff changeset
277 RestartCallback *cb = malloc(sizeof(RestartCallback));
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diff changeset
278 cb->func = fn;
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diff changeset
279 cb->data = data;
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diff changeset
280 cb->next = NULL;
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diff changeset
281
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diff changeset
282 if(atrestart) {
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diff changeset
283 RestartCallback *elm = atrestart;
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diff changeset
284 while(elm) {
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diff changeset
285 if(!elm->next) {
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diff changeset
286 elm->next = cb;
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diff changeset
287 break;
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diff changeset
288 }
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diff changeset
289 elm = elm->next;
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diff changeset
290 }
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diff changeset
291 } else {
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diff changeset
292 atrestart = cb;
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diff changeset
293 }
9
30e51941a673 Added mod_jk dependencies
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parents: 6
diff changeset
294 }
30e51941a673 Added mod_jk dependencies
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parents: 6
diff changeset
295
68
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diff changeset
296 int nsapi_runtime_version() {
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diff changeset
297 return 303;
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diff changeset
298 }
106
b122f34ddc80 added minimal ssl support
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diff changeset
299
b122f34ddc80 added minimal ssl support
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diff changeset
300
b122f34ddc80 added minimal ssl support
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diff changeset
301 int ws_init_ssl() {
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302 // TODO: handle errors
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303 SSL_load_error_strings();
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304 SSL_library_init();
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305 OpenSSL_add_all_algorithms();
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306 return 0;
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307 }

mercurial