src/server/safs/cgi.c

Tue, 12 Sep 2023 18:08:11 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Tue, 12 Sep 2023 18:08:11 +0200
changeset 511
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parent 503
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child 516
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permissions
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update uwproj

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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 2016 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 "cgi.h"
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30
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31 #include <stdio.h>
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32 #include <stdlib.h>
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33 #include <unistd.h>
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34
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35 #include <sys/types.h>
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36 #include <signal.h>
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37 #include <sys/wait.h>
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38
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39 #include <cx/string.h>
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40
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41 #include "../util/util.h"
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42 #include "../util/pblock.h"
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43 #include "../daemon/netsite.h"
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44 #include "../daemon/vfs.h"
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45 #include "../util/io.h"
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46 #include "../daemon/event.h"
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47
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48 #include "cgiutils.h"
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49
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50 #define CGI_VARS 32
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51
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52 #define CGI_RESPONSE_PARSER_BUFLEN 2048
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53 #define CGI_RESPONSE_MAX_LINE_LENGTH 512
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54
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55 int send_cgi(pblock *pb, Session *sn, Request *rq) {
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56 char *path = pblock_findkeyval(pb_key_path, rq->vars);
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57 char *ctlen = pblock_findkeyval(pb_key_content_length, rq->headers);
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58 int64_t content_length = 0;
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59
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60 log_ereport(LOG_DEBUG, "cgi-send: path: %s content-length: %s", path, ctlen);
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61
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62 if(ctlen) {
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63 if(!util_strtoint(ctlen, &content_length)) {
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64 log_ereport(
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65 LOG_FAILURE,
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66 "send-cgi: content-length header is not an integer");
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67 protocol_status(sn, rq, 400, NULL);
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68 return REQ_ABORTED;
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69 }
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70 }
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71
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72 // using stat, not vfs_stat, because running scripts/executables works only
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73 // with the sys fs
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74 if(!vfs_is_sys(rq->vfs)) {
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75 log_ereport(LOG_WARN, "send-cgi: VFS setting ignored");
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76 }
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77
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78 struct stat s;
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79 if(stat(path, &s)) {
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80 int statuscode = util_errno2status(errno);
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81 protocol_status(sn, rq, statuscode, NULL);
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82 return REQ_ABORTED;
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83 }
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84 if(S_ISDIR(s.st_mode)) {
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85 protocol_status(sn, rq, 403, NULL);
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86 return REQ_ABORTED;
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87 }
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88
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89 param_free(pblock_remove("content-type", rq->srvhdrs));
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90
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91 const char *args = pblock_findval("query", rq->reqpb);
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92 char **argv = cgi_create_argv(path, NULL, args);
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93 if(!argv) {
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94 return REQ_ABORTED;
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95 }
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96
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97 char **env = http_hdrs2env(rq->headers);
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98 env = cgi_common_vars(sn, rq, env);
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99 env = cgi_specific_vars(sn, rq, args, env, 1);
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100
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101 // event handler object for non-blocking io event handler
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102 CGIHandler *handler = pool_malloc(sn->pool, sizeof(CGIHandler));
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103 if(!handler) {
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104 return REQ_ABORTED;
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105 }
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106 ZERO(handler, sizeof(CGIHandler));
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107 handler->path = path;
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108
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109 int ret = cgi_start(&handler->process, path, argv, env);
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110 if(ret != REQ_PROCEED) {
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111 util_env_free(env);
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112 cgi_free_argv(argv);
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113 return ret;
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114 }
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115
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116 util_env_free(env);
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117 cgi_free_argv(argv);
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118
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119 char buf[4096]; // I/O buffer
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120 ssize_t r;
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121
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122 if(content_length > 0) {
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123 ssize_t n = 0;
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124 while(n < content_length) {
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125 r = netbuf_getbytes(sn->inbuf, buf, 4096);
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126 if(r <= 0) {
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127 log_ereport(
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128 LOG_FAILURE,
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129 "send-cgi: script: %s: cannot read request body",
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130 path);
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131 kill(handler->process.pid, SIGTERM);
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132 cgi_close(&handler->process);
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133 return REQ_ABORTED;
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134 }
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135 ssize_t w = write(handler->process.in[1], buf, r);
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136 if(w <= 0) {
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137 log_ereport(
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138 LOG_FAILURE,
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139 "send-cgi: script: %s: cannot send request body to cgi process",
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140 path);
430
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141 kill(handler->process.pid, SIGKILL);
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142 cgi_close(&handler->process);
162
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143 return REQ_ABORTED;
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144 }
119
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145 n += r;
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146 }
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147 }
430
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148 system_close(handler->process.in[1]);
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149 handler->process.in[1] = -1;
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150
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151 handler->parser = cgi_parser_new(sn, rq);
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152
431
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153 // set pipes non-blocking
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154 int flags;
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155 if ((flags = fcntl(handler->process.err[0], F_GETFL, 0)) == -1) {
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156 flags = 0;
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157 }
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158 if (fcntl(handler->process.err[0], F_SETFL, flags | O_NONBLOCK) != 0) {
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159 log_ereport(LOG_FAILURE, "cgi-bin: fcntl err[0] failed: %s", strerror(errno));
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160 }
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161 if ((flags = fcntl(handler->process.out[0], F_GETFL, 0)) == -1) {
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162 flags = 0;
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163 }
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164 if (fcntl(handler->process.out[0], F_SETFL, flags | O_NONBLOCK) != 0) {
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165 log_ereport(LOG_FAILURE, "cgi-bin: fcntl out[0] failed: %s", strerror(errno));
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166 }
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167
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168 // create events for reading cgi's stdout/stderr
430
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169 Event *readev = pool_malloc(sn->pool, sizeof(Event));
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170 ZERO(readev, sizeof(Event));
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171 readev->cookie = handler;
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172 readev->fn = cgi_stdout_readevent;
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173 readev->finish = cgi_event_finish;
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174
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175 Event *stderr_readev = pool_malloc(sn->pool, sizeof(Event));
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176 ZERO(stderr_readev, sizeof(Event));
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177 stderr_readev->cookie = handler;
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178 stderr_readev->fn = cgi_stderr_readevent;
499
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179 stderr_readev->finish = cgi_event_finish;
430
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180
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181 Event *writeev = pool_malloc(sn->pool, sizeof(Event));
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182 ZERO(writeev, sizeof(Event));
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183 writeev->cookie = handler;
499
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184 writeev->fn = cgi_writeevent;
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185 writeev->finish = cgi_event_finish;
498
0d80f8a2b29f fix net_http_write when used with chunked transfer encoding and non-blocking IO
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186
430
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187
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188 handler->writeev = writeev;
118
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189
433
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190 net_setnonblock(sn->csd, 1);
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191
430
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192 // add poll events for cgi stdout/stderr
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193 int error = 0;
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194 if(ev_pollin(sn->ev, handler->process.err[0], stderr_readev)) {
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195 log_ereport(LOG_FAILURE, "send-cgi: stderr ev_pollin failed");
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196 error = 1;
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197 }
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198 if(ev_pollin(sn->ev, handler->process.out[0], readev)) {
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199 log_ereport(LOG_FAILURE, "send-cgi: stdout ev_pollin failed");
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200 error = 1;
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201 }
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202
502
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203 handler->wait_read = TRUE;
499
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204 handler->events = 2; // 2 events (stdout, stderr)
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205
430
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206 if(error) {
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207 log_ereport(LOG_FAILURE, "cgi-send: kill script: %s", path);
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208 kill(handler->process.pid, SIGKILL);
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209 cgi_parser_free(handler->parser);
450
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210 cgi_close(&handler->process);
430
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211 return REQ_ABORTED;
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212 }
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213
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214 return REQ_PROCESSING;
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215 }
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216
433
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217 static int cgi_try_write_flush(CGIHandler *handler, Session *sn) {
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218 ssize_t wr = 0;
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219 while(
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220 handler->writebuf_size - handler->writebuf_pos > 0 &&
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221 (wr = net_write(
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222 sn->csd,
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223 handler->writebuf + handler->writebuf_pos,
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224 handler->writebuf_size - handler->writebuf_pos))
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225 > 0)
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226 {
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227 handler->writebuf_pos += wr;
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228 handler->count_write += wr;
433
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229 }
502
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230 if(handler->writebuf_size - handler->writebuf_pos > 0) {
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231 if(net_errno(sn->csd) != EWOULDBLOCK) {
433
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232 handler->result = REQ_ABORTED;
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233 }
502
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234
433
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235 return 1;
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236 }
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237 return 0;
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238 }
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239
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diff changeset
240 static int cgi_try_write(CGIHandler *handler, EventHandler *ev, Session *sn, char *buf, size_t size) {
502
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241
433
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242 size_t pos = 0;
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243 ssize_t wr = 0;
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244 while(size - pos > 0 && (wr = net_write(sn->csd, buf + pos, size - pos)) > 0) {
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245 pos += wr;
502
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246 handler->count_write += wr;
433
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247 }
502
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248
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249 if(pos < size) {
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250 if(net_errno(sn->csd) == EWOULDBLOCK) {
433
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251 // copy remaining bytes to the write buffer
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252 // we assume there are no remaining bytes in writebuf
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diff changeset
253 size_t remaining = size-pos;
497
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diff changeset
254 if(remaining > handler->writebuf_alloc) {
433
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diff changeset
255 handler->writebuf_alloc = size > 4096 ? size : 4096;
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diff changeset
256 handler->writebuf = pool_realloc(sn->pool, handler->writebuf, handler->writebuf_alloc);
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diff changeset
257 if(!handler->writebuf) {
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diff changeset
258 handler->result = REQ_ABORTED;
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diff changeset
259 return 1;
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260 }
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261 }
497
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parents: 451
diff changeset
262 memcpy(handler->writebuf, buf+pos, remaining);
433
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diff changeset
263 handler->writebuf_size = remaining;
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diff changeset
264 handler->writebuf_pos = 0;
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diff changeset
265
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266 // initialize poll, if it isn't already active
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267 if(!handler->poll_out) {
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268 if(event_pollout(ev, sn->csd, handler->writeev)) {
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269 handler->result = REQ_ABORTED;
498
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270 return 0;
433
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271 }
499
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272 handler->events++;
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273 handler->poll_out = TRUE;
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274 }
497
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diff changeset
275 } else {
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276 handler->result = REQ_ABORTED;
502
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277 log_ereport(LOG_FAILURE, "cgi_try_write: %s", strerror(net_errno(sn->csd)));
433
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278 }
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279 return 1;
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280 }
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281
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282 return 0;
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283 }
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284
430
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285 int cgi_stdout_readevent(EventHandler *ev, Event *event) {
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286 CGIHandler *handler = event->cookie;
433
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287
502
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288 int ret = cgi_read_output(handler, ev);
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289 if(ret == 0) {
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290 handler->wait_read = FALSE;
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291 }
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292 return ret;
433
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293 }
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294
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295 int cgi_writeevent(EventHandler *ev, Event *event) {
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296 CGIHandler *handler = event->cookie;
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297
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298 // cgi_read_output will try to flush the buffer
502
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299 int ret = cgi_read_output(handler, ev);
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300 if(ret == 0) {
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301 handler->poll_out = FALSE;
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302 }
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303 return ret;
433
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304 }
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305
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306
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307
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308 int cgi_read_output(CGIHandler *handler, EventHandler *ev) {
430
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309 CGIResponseParser *parser = handler->parser;
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310 Session *sn = parser->sn;
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311 Request *rq = parser->rq;
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312
433
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313 // try to flush handler->writebuf
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314 // if writebuf is empty, this does nothing and returns 0
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315 if(cgi_try_write_flush(handler, sn)) {
498
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diff changeset
316 if(handler->result == REQ_ABORTED) {
502
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317 log_ereport(LOG_DEBUG, "cgi-send: req: %p write failed: %s: abort", handler->parser->rq, strerror(net_errno(sn->csd)), rq);
498
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318 return 0;
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319 } else {
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320 return 1;
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321 }
433
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322 }
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323
430
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324 char buf[4096]; // I/O buffer
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325 ssize_t r;
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326
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327 handler->result = REQ_PROCEED;
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328 while((r = read(handler->process.out[0], buf, 4096)) > 0) {
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329 if(parser->cgiheader) {
118
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330 size_t pos;
430
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331 int ret = cgi_parse_response(parser, buf, r, &pos);
118
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332 if(ret == -1) {
162
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diff changeset
333 log_ereport(
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334 LOG_FAILURE,
430
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335 "broken cgi script response: path: %s", handler->path);
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336 protocol_status(sn, rq, 500, NULL);
430
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337 handler->result = REQ_ABORTED;
433
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338 return 0;
118
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339 } else if(ret == 1) {
433
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340 WS_ASSERT(pos <= r);
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341
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342 parser->response_length += r-pos;
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343
430
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344 parser->cgiheader = FALSE;
124
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diff changeset
345 if(parser->status > 0) {
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diff changeset
346 protocol_status(sn, rq, parser->status, parser->msg);
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347 }
433
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348
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349 handler->response = http_create_response(sn, rq);
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diff changeset
350 if(!handler->response) {
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351 handler->result = REQ_ABORTED;
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352 return 0;
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353 }
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354
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diff changeset
355 int send_response = http_send_response(handler->response);
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diff changeset
356 if(send_response < 0) {
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diff changeset
357 handler->result = REQ_ABORTED;
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diff changeset
358 break;
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diff changeset
359 } else if(send_response == 1) {
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diff changeset
360 // EWOULDBLOCK
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diff changeset
361 if(!handler->poll_out) {
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diff changeset
362 if(event_pollout(ev, sn->csd, handler->writeev)) {
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diff changeset
363 handler->result = REQ_ABORTED;
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364 return 0;
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365 }
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366 handler->poll_out = TRUE;
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367 return 1;
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368 }
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369 } else {
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370 handler->response = NULL;
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371 }
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diff changeset
372
118
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373 if(pos < r) {
433
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diff changeset
374 if(cgi_try_write(handler, ev, sn, &buf[pos], r-pos)) {
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diff changeset
375 return handler->result == REQ_ABORTED ? 0 : 1;
125
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diff changeset
376 }
118
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377 }
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378 }
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379 } else {
430
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diff changeset
380 parser->response_length += r;
433
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diff changeset
381 if(cgi_try_write(handler, ev, sn, buf, r)) {
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diff changeset
382 return handler->result == REQ_ABORTED ? 0 : 1;
125
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diff changeset
383 }
118
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384 }
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385 }
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
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diff changeset
386 if(r < 0 && errno == EWOULDBLOCK) {
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diff changeset
387 return 1;
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diff changeset
388 }
502
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
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diff changeset
389 handler->cgi_eof = TRUE;
430
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diff changeset
390 return 0;
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diff changeset
391 }
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diff changeset
392
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
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diff changeset
393 int cgi_stderr_readevent(EventHandler *ev, Event *event) {
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diff changeset
394 CGIHandler *handler = event->cookie;
431
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
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parents: 430
diff changeset
395 pool_handle_t *pool = handler->parser->sn->pool;
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
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diff changeset
396
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
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diff changeset
397 char buf[4096];
431
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
398 char *line = buf;
451
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
399 int line_start;
431
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
400 ssize_t r;
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
401 while((r = read(handler->process.err[0], buf, 4096)) > 0) {
451
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
402 line_start = 0;
431
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
403 int pos = 0;
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
404 // log stderr output lines
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
405 for(int i=0;i<r;i++) {
451
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
406 if(buf[i] == '\n') {
431
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
407 log_ereport(
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
408 LOG_INFORM,
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
409 "cgi pid %d %s stderr: %.*s%.*s",
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
410 (int)handler->process.pid,
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
411 handler->path,
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
412 (int)handler->stderr_tmplen,
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
413 handler->stderr_tmp,
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
414 i - line_start,
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
415 line + line_start);
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
416 line_start = i+1;
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
417 pos = i+1;
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
418
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
419 if(handler->stderr_tmp) {
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
420 handler->stderr_tmplen = 0;
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
421 }
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
422 }
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
423 }
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
424
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
425 // check for incomplete line
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
426 if(pos < r) {
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
427 int tmplen = r-pos;
451
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
428 if(handler->stderr_tmplen > 0) {
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
429 // append new text to the temp buffer
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
430 if(handler->stderr_tmplen + tmplen > handler->stderr_tmpalloc) {
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
431 handler->stderr_tmpalloc = handler->stderr_tmplen + tmplen;
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
432 handler->stderr_tmp = pool_realloc(pool, handler->stderr_tmp, handler->stderr_tmpalloc);
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
433 if(!handler->stderr_tmp) {
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
434 log_ereport(LOG_FAILURE, "send-cgi: cannot create tmp buffer for parsing stderr");
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
435 handler->stderr_tmpalloc = 0;
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
436 handler->stderr_tmplen = 0;
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
437 continue;
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
438 }
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
439 }
431
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
440 memcpy(handler->stderr_tmp + handler->stderr_tmplen, line + line_start, tmplen);
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
441 handler->stderr_tmplen += tmplen;
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
442 } else {
451
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
443 if(handler->stderr_tmpalloc < tmplen) {
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
444 // tmp buffer too small or not allocated
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
445 handler->stderr_tmpalloc = tmplen < 256 ? 256 : tmplen;
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
446 if(handler->stderr_tmp) {
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
447 // free old tmp buf
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
448 // pool_realloc doesn't make sense here, because it
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
449 // is just free+malloc+memcpy and we don't need the
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
450 // memcpy part, because we are just reusing the buffer
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
451 // and the previous content doesn't matter
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
452 pool_free(pool, handler->stderr_tmp);
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
453 }
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
454 handler->stderr_tmp = pool_malloc(pool, handler->stderr_tmpalloc);
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
455 if(!handler->stderr_tmp) {
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
456 log_ereport(LOG_FAILURE, "send-cgi: cannot create tmp buffer for parsing stderr");
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
457 handler->stderr_tmpalloc = 0;
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
458 handler->stderr_tmplen = 0;
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
459 continue;
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
460 }
edbbb3000494 fix cgi stderr logger + reuse stderr tmp buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 450
diff changeset
461 }
431
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
462 memcpy(handler->stderr_tmp, line + line_start, tmplen);
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
463 handler->stderr_tmplen = tmplen;
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
464 }
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
465 } else {
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
466 handler->stderr_tmplen = 0;
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
467 }
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
468 }
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
469
431
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
470
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
471 if(r < 0 && errno == EWOULDBLOCK) {
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
472 return 1;
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
473 }
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
474
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
475 if(handler->stderr_tmp) {
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
476 pool_free(handler->parser->sn->pool, handler->stderr_tmp);
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
477 }
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
478 return 0;
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
479 }
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
480
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
481 int cgi_event_finish(EventHandler *ev, Event *event) {
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
482 CGIHandler *handler = event->cookie;
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
483 CGIResponseParser *parser = handler->parser;
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
484 Session *sn = parser->sn;
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
485 Request *rq = parser->rq;
501
2aa6bd9f166f fix cgi-send inactive write event blocking request termination
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 499
diff changeset
486
502
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
487 char *event_fn = "";
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
488 if(event->fn == cgi_stdout_readevent) {
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
489 event_fn = "stdout";
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
490 } else if(event->fn == cgi_stderr_readevent) {
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
491 event_fn = "stderr";
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
492 } else if(event->fn == cgi_writeevent) {
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
493 event_fn = "httpout";
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
494 }
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
495 log_ereport(LOG_DEBUG, "cgi-send: req: %p finish: event: %d pollout: %d cgi_eof: %d fn: %s", rq, handler->events, handler->poll_out, handler->cgi_eof, event_fn);
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
496
499
ef77854a91f3 fix cgi event handling, pipes were not always closed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 498
diff changeset
497 if(--handler->events > 0) {
502
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
498 if(handler->events == 1) {
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
499 if(handler->poll_out) {
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
500 // write event registered, however it will not be activated anymore
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
501 // we can safely remove the event
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
502 log_ereport(LOG_DEBUG, "cgi-send: req: %p finish: event: 1 remove-poll write", rq);
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
503 if(event_removepoll(ev, sn->csd)) {
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
504 log_ereport(LOG_FAILURE, "cgi_event_finish: event_removepoll: %s", strerror(errno));
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
505 }
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
506 } else if(handler->cgi_eof && handler->wait_read) {
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
507 log_ereport(LOG_DEBUG, "cgi-send: req: %p finish: event: 1 remove-poll read", rq);
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
508 if(ev_remove_poll(ev, handler->process.out[0])) {
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
509 log_ereport(LOG_FAILURE, "cgi_event_finish: ev_remove_poll: %s", strerror(errno));
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
510 }
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
511 } else {
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
512 return 0;
501
2aa6bd9f166f fix cgi-send inactive write event blocking request termination
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 499
diff changeset
513 }
2aa6bd9f166f fix cgi-send inactive write event blocking request termination
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 499
diff changeset
514 } else {
2aa6bd9f166f fix cgi-send inactive write event blocking request termination
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 499
diff changeset
515 return 0;
2aa6bd9f166f fix cgi-send inactive write event blocking request termination
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 499
diff changeset
516 }
162
b169992137a8 improves cgi error handling and allows requests with empty headers
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 161
diff changeset
517 }
359
79b28ae7bfbd check cgi exit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
518
499
ef77854a91f3 fix cgi event handling, pipes were not always closed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 498
diff changeset
519 if(handler->result == REQ_ABORTED && handler->process.pid != 0) {
ef77854a91f3 fix cgi event handling, pipes were not always closed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 498
diff changeset
520 log_ereport(LOG_FAILURE, "cgi-send: kill script: %s", handler->path);
ef77854a91f3 fix cgi event handling, pipes were not always closed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 498
diff changeset
521 killpg(handler->process.pid, SIGTERM);
431
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
522 }
499
ef77854a91f3 fix cgi event handling, pipes were not always closed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 498
diff changeset
523
502
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
524 log_ereport(LOG_DEBUG, "cgi-send: req: %p cgi_close", rq);
431
032b0ad35ee3 parse cgi stderr output for logging and use non-blocking pipes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 430
diff changeset
525
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
526 int exit_code = cgi_close(&handler->process);
359
79b28ae7bfbd check cgi exit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
527 if(exit_code != 0) {
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
528 log_ereport(LOG_FAILURE, "send-cgi: script: %s exited with code %d", handler->path, exit_code);
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
529 handler->result = REQ_ABORTED;
359
79b28ae7bfbd check cgi exit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
530 }
126
631aaa01b2b5 fixes chunked transfer encoding
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 125
diff changeset
531
124
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
532 cgi_parser_free(parser);
433
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
533
502
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
534 WSBool response_length_error = FALSE;
433
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
535 // check if content-length set by the cgi script matches the number
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
536 // of writes, that were written to the stream
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
537 // this ensures, that broken cgi scripts don't break the connection
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
538 char *ctlen_header = pblock_findkeyval(pb_key_content_length, rq->srvhdrs);
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
539 if(ctlen_header) {
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
540 int64_t ctlenhdr;
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
541 if(util_strtoint(ctlen_header, &ctlenhdr)) {
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
542 if(ctlenhdr != parser->response_length) {
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
543 log_ereport(
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
544 LOG_FAILURE,
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
545 "cgi-send: script: %s: content length mismatch",
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
546 handler->path);
502
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
547 response_length_error = TRUE;
433
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
548 }
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
549 }
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
550 }
502
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
551 // make sure we haven't lost any bytes
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
552 // should not happen unless the non-blocking IO code is buggy
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
553 if(handler->result != REQ_ABORTED && handler->parser->response_length != handler->count_write) {
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
554 log_ereport(
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
555 LOG_FAILURE,
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
556 "cgi-send: script: %s: IO error: cgi response length != http response length",
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
557 handler->path);
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
558 response_length_error = TRUE;
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
559 }
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
560
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
561 // if the response length is broken, we must close the connection
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
562 if(response_length_error) {
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
563 rq->rq_attr.keep_alive = 0;
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
564 handler->result = REQ_ABORTED;
11ac3761c0e3 fix non-blocking CGI handler and non-blocking SSL-IO
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 501
diff changeset
565 }
433
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
566
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
567 net_setnonblock(sn->csd, 0);
39fe86ae4db0 use non-blocking IO for pipes and socket in send_cgi
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 431
diff changeset
568
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
569 // return to nsapi loop
497
8827517054ec fix cgi response could send an uninitialized buffer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 451
diff changeset
570 log_ereport(LOG_DEBUG, "cgi-send: req: %p event-finish nsapi return", rq);
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
571 nsapi_function_return(sn, rq, handler->result);
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
572 return 0;
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
573 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
574
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
575 int cgi_start(CGIProcess *p, char *path, char *const argv[], char *const envp[]) {
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
576 if(pipe(p->in) || pipe(p->out) || pipe(p->err)) {
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
577 log_ereport(
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
578 LOG_FAILURE,
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
579 "send-cgi: cannot create pipe: %s",
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
580 strerror(errno));
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
581 return REQ_ABORTED;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
582 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
583
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
584 p->pid = fork();
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
585 if(p->pid == 0) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
586 // child
120
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
587
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
588 // get script directory and script name
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
589 cxstring script = cx_str(path);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
590 cxmutstr parent;
120
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
591 int len = strlen(path);
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
592 for(int i=len-1;i>=0;i--) {
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
593 if(path[i] == '/') {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
594 script = cx_strn(path + i + 1, len - i);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
595 parent = cx_strdup(cx_strn(path, i));
120
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
596 if(chdir(parent.ptr)) {
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
597 perror("cgi_start: chdir");
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
598 free(parent.ptr);
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
599 exit(-1);
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
600 }
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
601 free(parent.ptr);
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
602 break;
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
603 }
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
604 }
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
605
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
606 if(dup2(p->in[0], STDIN_FILENO) == -1) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
607 perror("cgi_start: dup2");
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
608 exit(EXIT_FAILURE);
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
609 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
610 if(dup2(p->out[1], STDOUT_FILENO) == -1) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
611 perror("cgi_start: dup2");
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
612 exit(EXIT_FAILURE);
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
613 }
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
614 if(dup2(p->err[1], STDERR_FILENO) == -1) {
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
615 perror("cgi_start: dup2");
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
616 exit(EXIT_FAILURE);
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
617 }
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
618
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
619 // we need to close this unused pipe
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
620 // otherwise stdin cannot reach EOF
171
af7e2d80dee6 adds wrapper for close syscall with error handling
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 164
diff changeset
621 system_close(p->in[1]);
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
622
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
623 // execute program
120
d2eb5fd97df0 adds chdir before cgi execution
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 119
diff changeset
624 exit(execve(script.ptr, argv, envp));
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
625 } else {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
626 // parent
171
af7e2d80dee6 adds wrapper for close syscall with error handling
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 164
diff changeset
627 system_close(p->out[1]);
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
628 system_close(p->err[1]);
144
4b546c4f25ed fixes cgi fd leak
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 133
diff changeset
629 p->out[1] = -1;
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
630 p->err[1] = -1;
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
631 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
632
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
633 return REQ_PROCEED;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
634 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
635
162
b169992137a8 improves cgi error handling and allows requests with empty headers
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 161
diff changeset
636 int cgi_close(CGIProcess *p) {
b169992137a8 improves cgi error handling and allows requests with empty headers
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 161
diff changeset
637 int status = -1;
b169992137a8 improves cgi error handling and allows requests with empty headers
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 161
diff changeset
638 waitpid(p->pid, &status, 0);
b169992137a8 improves cgi error handling and allows requests with empty headers
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 161
diff changeset
639
144
4b546c4f25ed fixes cgi fd leak
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 133
diff changeset
640 if(p->in[0] != -1) {
171
af7e2d80dee6 adds wrapper for close syscall with error handling
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 164
diff changeset
641 system_close(p->in[0]);
144
4b546c4f25ed fixes cgi fd leak
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 133
diff changeset
642 }
4b546c4f25ed fixes cgi fd leak
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 133
diff changeset
643 if(p->in[1] != -1) {
171
af7e2d80dee6 adds wrapper for close syscall with error handling
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 164
diff changeset
644 system_close(p->in[1]);
144
4b546c4f25ed fixes cgi fd leak
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 133
diff changeset
645 }
4b546c4f25ed fixes cgi fd leak
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 133
diff changeset
646 if(p->out[0] != -1) {
171
af7e2d80dee6 adds wrapper for close syscall with error handling
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 164
diff changeset
647 system_close(p->out[0]);
144
4b546c4f25ed fixes cgi fd leak
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 133
diff changeset
648 }
4b546c4f25ed fixes cgi fd leak
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 133
diff changeset
649 if(p->out[1] != -1) {
171
af7e2d80dee6 adds wrapper for close syscall with error handling
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 164
diff changeset
650 system_close(p->out[1]);
144
4b546c4f25ed fixes cgi fd leak
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 133
diff changeset
651 }
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
652 if(p->err[0] != -1) {
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
653 system_close(p->err[0]);
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
654 }
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
655 if(p->err[1] != -1) {
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
656 system_close(p->err[1]);
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
657 }
162
b169992137a8 improves cgi error handling and allows requests with empty headers
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 161
diff changeset
658
359
79b28ae7bfbd check cgi exit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
659 return status;
144
4b546c4f25ed fixes cgi fd leak
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 133
diff changeset
660 }
4b546c4f25ed fixes cgi fd leak
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 133
diff changeset
661
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
662 CGIResponseParser* cgi_parser_new(Session *sn, Request *rq) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
663 CGIResponseParser* parser = pool_malloc(sn->pool, sizeof(CGIResponseParser));
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
664 parser->sn = sn;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
665 parser->rq = rq;
124
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
666 parser->status = 0;
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
667 parser->msg = NULL;
430
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
668 parser->response_length = 0;
83560f32e7d5 refactor send_cgi into non-blocking SAF (wip)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
669 parser->cgiheader = TRUE;
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
670 cxBufferInit(&parser->tmp, NULL, 64, pool_allocator(sn->pool), CX_BUFFER_AUTO_EXTEND|CX_BUFFER_FREE_CONTENTS);
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
671 return parser;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
672 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
673
124
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
674 void cgi_parser_free(CGIResponseParser *parser) {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
675 if(parser->tmp.space) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
676 cxBufferDestroy(&parser->tmp);
124
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
677 }
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
678 pool_free(parser->sn->pool, parser);
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
679 }
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
680
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
681 /*
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
682 * parses a cgi response line and adds the response header to rq->srvhdrs
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
683 * returns 0: incomplete line
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
684 * 1: successfully parsed lines
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
685 * 2: cgi response header complete (empty line)
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
686 * -1: error
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
687 */
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
688 static int parse_lines(CGIResponseParser *parser, char *buf, size_t len, int *pos) {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
689 CxAllocator *a = pool_allocator(parser->sn->pool);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
690 cxmutstr name;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
691 cxmutstr value;
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
692 WSBool space = TRUE;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
693 int i;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
694
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
695 int line_begin = 0;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
696 int value_begin = 0;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
697 for(i=0;i<len;i++) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
698 char c = buf[i];
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
699 if(value_begin == line_begin && c == ':') {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
700 name = cx_mutstrn(buf + line_begin, i - line_begin);
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
701 value_begin = i + 1;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
702 } else if(c == '\n') {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
703 if(value_begin == line_begin) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
704 if(space) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
705 *pos = i + 1;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
706 return 2;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
707 } else {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
708 // line ends with content but without ':' -> error
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
709 return -1;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
710 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
711 }
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
712 value = cx_mutstrn(buf + value_begin, i - value_begin);
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
713
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
714 cx_strlower(name);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
715 name = cx_strdup_a(a, cx_strtrim((cxstring){name.ptr, name.length}));
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
716 value = cx_strtrim_m(value);
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
717
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
718 if(name.length == 0 || value.length == 0) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
719 return -1;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
720 }
124
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
721
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
722 if(!cx_strcmp((cxstring){name.ptr, name.length}, (cxstring)CX_STR("status"))) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
723 cxmutstr codestr = value;
133
87b405d61f64 improves event handler and ssl error handling
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 126
diff changeset
724 int j;
87b405d61f64 improves event handler and ssl error handling
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 126
diff changeset
725 for(j=0;j<codestr.length;j++) {
87b405d61f64 improves event handler and ssl error handling
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 126
diff changeset
726 if(!isdigit(codestr.ptr[j])) {
124
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
727 break;
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
728 }
133
87b405d61f64 improves event handler and ssl error handling
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 126
diff changeset
729 if(j > 2) {
124
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
730 break;
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
731 }
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
732 }
133
87b405d61f64 improves event handler and ssl error handling
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 126
diff changeset
733 codestr.ptr[j] = '\0';
124
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
734
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
735 int64_t s = 0;
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
736 util_strtoint(codestr.ptr, &s);
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
737 parser->status = (int)s;
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
738
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
739 cxmutstr msg = cx_strtrim_m(cx_strsubs_m(value, j + 1));
124
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
740
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
741 if(msg.length > 0) {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
742 parser->msg = cx_strdup_pool(parser->sn->pool, msg).ptr;
124
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
743 }
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
744 } else {
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
745 pblock_nvlinsert(
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
746 name.ptr,
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
747 name.length,
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
748 value.ptr,
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
749 value.length,
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
750 parser->rq->srvhdrs);
85985e88f63b using the status code from cgi output now
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 123
diff changeset
751 }
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
752
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
753 line_begin = i+1;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
754 value_begin = line_begin;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
755 space = TRUE;
121
a881dc866e23 adds more CGI stuff
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 120
diff changeset
756 } else if(!isspace(c)) {
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
757 space = FALSE;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
758 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
759 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
760
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
761 if(i < len) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
762 *pos = i;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
763 return 0;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
764 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
765 return 1;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
766 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
767
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
768 /*
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
769 * returns -1: error
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
770 * 0: response header incomplete
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
771 * 1: complete
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
772 */
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
773 int cgi_parse_response(CGIResponseParser *parser, char *buf, size_t len, size_t *bpos) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
774 *bpos = 0;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
775 int pos = 0;
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
776 if(parser->tmp.pos > 0) {
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
777 // the tmp buffer contains an unfinished line
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
778 // fill up the buffer until the line is complete
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
779 WSBool nb = FALSE;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
780 for(pos=0;pos<len;pos++) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
781 if(buf[pos] == '\n') {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
782 nb = TRUE;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
783 break;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
784 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
785 }
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
786 cxBufferWrite(buf, 1, pos, &parser->tmp);
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
787
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
788 if(nb) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
789 // line complete
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
790 int npos;
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
791 int r = parse_lines(parser, parser->tmp.space, parser->tmp.pos, &npos);
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
792 switch(r) {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
793 case -1: return -1;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
794 case 0: return -1;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
795 case 1: break;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
796 case 2: {
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
797 *bpos = pos + 1;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
798 return 1;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
799 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
800 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
801 // reset tmp buffer
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
802 parser->tmp.pos = 0;
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
803 } else {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 359
diff changeset
804 if(parser->tmp.pos > CGI_RESPONSE_MAX_LINE_LENGTH) {
118
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
805 return -1;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
806 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
807 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
808 }
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
809
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
810 int npos = 0;
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
811 int r = parse_lines(parser, buf + pos, len - pos, &npos);
38bf6dd8f4e7 adds minimal cgi implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
812 switch(r) {
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813 default: return -1;
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814 case 0:
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parents:
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815 case 1: {
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816 int newlen = len - npos;
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817 if(npos > 0) {
415
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818 cxBufferWrite(buf + npos, 1, newlen, &parser->tmp);
118
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819 }
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820 return 0;
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821 }
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822 case 2: {
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823 *bpos = pos + npos;
38bf6dd8f4e7 adds minimal cgi implementation
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824 return 1;
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825 }
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826 }
171
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827 }

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