src/server/daemon/protocol.c

Mon, 09 Sep 2013 12:15:54 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Mon, 09 Sep 2013 12:15:54 +0200
changeset 93
95b77e842db3
parent 87
bdec069d2239
child 101
7fbcdbad0baa
permissions
-rw-r--r--

fixed solaris build

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2013 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include "protocol.h"
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30
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31 #include "../util/pblock.h"
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32 #include "../util/pool.h"
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33 #include "session.h"
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34 #include "../util/io.h"
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35
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36 #include "../util/strbuf.h"
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37
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38
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39 void protocol_status(Session *sn, Request *rq, int n, const char *m) {
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40 rq->status_num = n;
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41
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42 const char *msg = m ? m : protocol_status_message(n);
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43
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44 pb_param *pp = pblock_removekey(pb_key_status, rq->srvhdrs);
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45 if (pp != NULL) {
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46 param_free(pp);
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47 }
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48
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49 pp = pblock_key_param_create(rq->srvhdrs, pb_key_status, msg, strlen(msg));
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50 pblock_kpinsert(pb_key_status, pp, rq->srvhdrs);
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51 }
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52
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53
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54 /*
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55 * http_status_message from Open Webserver (frame/http.cpp)
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56 * TODO: replace, use sstr_t
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57 */
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58 NSAPI_PUBLIC const char * protocol_status_message (int code)
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59 {
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60 WS_ASSERT(code > 0);
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61
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62 const char *r;
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63
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64 switch (code)
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65 {
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66 case PROTOCOL_CONTINUE : // 100
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67 r = "Continue";
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68 break;
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69 case PROTOCOL_SWITCHING: //101
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70 r = "Switching Protocols";
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71 break;
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72 case PROTOCOL_OK: // 200
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73 r = "OK";
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74 break;
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75 case PROTOCOL_CREATED: // 201
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76 r = "Created";
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77 break;
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78 case PROTOCOL_ACCEPTED: // 202
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79 r = "Accepted";
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80 break;
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81 case PROTOCOL_NONAUTHORITATIVE: // 203
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82 r = "Non-Authoritative Information";
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83 break;
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84 case PROTOCOL_NO_CONTENT: //204
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85 /* There is another define to PROTOCOL_NO_RESPONSE for 204 in nsapi.h
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86 The spec maps this to No Content.
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87 Hence cahnging this to No Content
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88 */
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89 r = "No Content";
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90 break;
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91 case PROTOCOL_RESET_CONTENT: // 205
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92 r = "Reset Content";
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93 break;
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94 case PROTOCOL_PARTIAL_CONTENT: // 206
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95 r = "Partial Content";
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96 break;
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97 case PROTOCOL_MULTI_STATUS: // 207
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98 r = "Multi Status";
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99 break;
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100 case PROTOCOL_MULTIPLE_CHOICES: // 300
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101 r = "Multiple Choices";
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102 break;
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103 case PROTOCOL_MOVED_PERMANENTLY: // 301
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104 r = "Moved Permanently";
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105 break;
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106 case PROTOCOL_REDIRECT: // 302
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107 r = "Moved Temporarily"; /* The spec actually says "Found" */
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108 break;
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109 case PROTOCOL_SEE_OTHER: // 303
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110 r = "See Other";
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111 break;
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112 case PROTOCOL_NOT_MODIFIED: // 304
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113 r = "Use local copy"; /* The spec actually says "Not Modified" */
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114 break;
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115 case PROTOCOL_USE_PROXY: // 305
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116 r = "Use Proxy";
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117 break;
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118 case PROTOCOL_TEMPORARY_REDIRECT: // 307
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119 r = "Temporary Redirect";
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120 break;
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121 case PROTOCOL_BAD_REQUEST: // 400
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122 r = "Bad request";
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123 break;
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124 case PROTOCOL_UNAUTHORIZED: // 401
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125 r = "Unauthorized";
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126 break;
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127 case PROTOCOL_PAYMENT_REQUIRED: // 402
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128 r = "Payment Required";
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129 break;
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130 case PROTOCOL_FORBIDDEN: // 403
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131 r = "Forbidden";
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132 break;
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133 case PROTOCOL_NOT_FOUND: // 404
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134 r = "Not found";
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135 break;
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136 case PROTOCOL_METHOD_NOT_ALLOWED: // 405 /* HTTP/1.1 */
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137 r = "Method Not Allowed";
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138 break;
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139 case PROTOCOL_NOT_ACCEPTABLE: // 406 /* HTTP/1.1 */
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140 r = "Not Acceptable";
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141 break;
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142 case PROTOCOL_PROXY_UNAUTHORIZED: // 407
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143 r = "Proxy Authentication Required";
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144 break;
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145 case PROTOCOL_REQUEST_TIMEOUT: // 408 /* HTTP/1.1 */
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146 r = "Request Timeout";
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147 break;
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148 case PROTOCOL_CONFLICT: // 409
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149 r = "Conflict"; /* HTTP/1.1 */
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150 break;
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151 case PROTOCOL_GONE: // 410
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152 r = "Gone"; /* HTTP/1.1 */
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153 break;
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154 case PROTOCOL_LENGTH_REQUIRED: // 411 /* HTTP/1.1 */
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155 r = "Length Required";
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156 break;
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diff changeset
157 case PROTOCOL_PRECONDITION_FAIL: // 412 /* HTTP/1.1 */
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parents:
diff changeset
158 r = "Precondition Failed";
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parents:
diff changeset
159 break;
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parents:
diff changeset
160 case PROTOCOL_ENTITY_TOO_LARGE: // 413 /* HTTP/1.1 */
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parents:
diff changeset
161 r = "Request Entity Too Large";
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parents:
diff changeset
162 break;
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parents:
diff changeset
163 case PROTOCOL_URI_TOO_LARGE: // 414 /* HTTP/1.1 */
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parents:
diff changeset
164 r = "Request-URI Too Large";
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parents:
diff changeset
165 break;
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parents:
diff changeset
166 case PROTOCOL_UNSUPPORTED_MEDIA_TYPE: // 415
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parents:
diff changeset
167 r = "Unsupported Media Type";
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parents:
diff changeset
168 break;
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parents:
diff changeset
169 case PROTOCOL_REQUESTED_RANGE_NOT_SATISFIABLE: // 416
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parents:
diff changeset
170 r = "Requested range not satisfiable";
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parents:
diff changeset
171 break;
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parents:
diff changeset
172 case PROTOCOL_EXPECTATION_FAILED: // 417
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parents:
diff changeset
173 r = "Expectation Failed";
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parents:
diff changeset
174 break;
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parents:
diff changeset
175 case PROTOCOL_LOCKED: // 423
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parents:
diff changeset
176 r = "Locked";
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parents:
diff changeset
177 break;
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parents:
diff changeset
178 case PROTOCOL_FAILED_DEPENDENCY: // 424
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parents:
diff changeset
179 r = "Failed Dependency";
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parents:
diff changeset
180 break;
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parents:
diff changeset
181 case PROTOCOL_SERVER_ERROR: // 500
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parents:
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182 r = "Server Error"; /* The spec actually says "Internal Server Error" */
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parents:
diff changeset
183 break;
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parents:
diff changeset
184 case PROTOCOL_NOT_IMPLEMENTED: // 501
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parents:
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185 r = "Not Implemented";
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parents:
diff changeset
186 break;
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parents:
diff changeset
187 case PROTOCOL_BAD_GATEWAY: // 502
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parents:
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188 r = "Bad Gateway";
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parents:
diff changeset
189 break;
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parents:
diff changeset
190 case PROTOCOL_SERVICE_UNAVAILABLE: // 503
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parents:
diff changeset
191 r = "Service Unavailable";
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parents:
diff changeset
192 break;
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parents:
diff changeset
193 case PROTOCOL_GATEWAY_TIMEOUT: // 504 /* HTTP/1.1 */
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parents:
diff changeset
194 r = "Gateway Timeout";
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parents:
diff changeset
195 break;
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parents:
diff changeset
196 case PROTOCOL_VERSION_NOT_SUPPORTED: // 505 /* HTTP/1.1 */
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parents:
diff changeset
197 r = "HTTP Version Not Supported";
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parents:
diff changeset
198 break;
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parents:
diff changeset
199 case PROTOCOL_INSUFFICIENT_STORAGE: // 507
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parents:
diff changeset
200 r = "Insufficient Storage";
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parents:
diff changeset
201 break;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
202 default:
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
203 switch (code / 100)
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parents:
diff changeset
204 {
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parents:
diff changeset
205 case 1:
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parents:
diff changeset
206 r = "Information";
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parents:
diff changeset
207 break;
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parents:
diff changeset
208 case 2:
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parents:
diff changeset
209 r = "Success";
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parents:
diff changeset
210 break;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
211 case 3:
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parents:
diff changeset
212 r = "Redirect";
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parents:
diff changeset
213 break;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
214 case 4:
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parents:
diff changeset
215 r = "Client error";
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parents:
diff changeset
216 break;
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parents:
diff changeset
217 case 5:
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parents:
diff changeset
218 r = "Server error";
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parents:
diff changeset
219 break;
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parents:
diff changeset
220 default:
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parents:
diff changeset
221 r = "Unknown reason";
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parents:
diff changeset
222 break;
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parents:
diff changeset
223 }
998844b5ed25 Added some protocol functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
224 break;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
225 }
998844b5ed25 Added some protocol functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
226
998844b5ed25 Added some protocol functions
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parents:
diff changeset
227 return r;
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parents:
diff changeset
228 }
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parents:
diff changeset
229
998844b5ed25 Added some protocol functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
230
11
24d804a2799f Fixed response header bug
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 9
diff changeset
231 void add_http_status_line(sbuf_t *out, pool_handle_t *pool, Request *rq) {
24d804a2799f Fixed response header bug
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parents: 9
diff changeset
232 sbuf_write(out, "HTTP/1.1 ", 9);
4
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parents:
diff changeset
233
11
24d804a2799f Fixed response header bug
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parents: 9
diff changeset
234 char *status_code_str = pool_malloc(pool, 8);
4
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parents:
diff changeset
235 int sc_len = snprintf(status_code_str, 8, "%d ", rq->status_num);
11
24d804a2799f Fixed response header bug
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parents: 9
diff changeset
236 sbuf_write(out, status_code_str, sc_len);
4
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parents:
diff changeset
237
998844b5ed25 Added some protocol functions
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diff changeset
238 char *scmsg = pblock_findkeyval(pb_key_status, rq->srvhdrs);
23
a2c8fc23c90e Added basic authentication
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parents: 21
diff changeset
239 if(scmsg == NULL) {
a2c8fc23c90e Added basic authentication
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parents: 21
diff changeset
240 scmsg = "OK";
a2c8fc23c90e Added basic authentication
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parents: 21
diff changeset
241 }
11
24d804a2799f Fixed response header bug
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parents: 9
diff changeset
242 sbuf_write(out, scmsg, strlen(scmsg));
4
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parents:
diff changeset
243
11
24d804a2799f Fixed response header bug
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parents: 9
diff changeset
244 sbuf_write(out, "\r\n", 2);
4
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
245 }
998844b5ed25 Added some protocol functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
246
11
24d804a2799f Fixed response header bug
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 9
diff changeset
247 void add_http_response_header(sbuf_t *out, Request *rq) {
7
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
248 pblock *h = rq->srvhdrs;
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parents: 4
diff changeset
249 pb_entry *p;
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parents: 4
diff changeset
250
3c2ed7a7a5fd request and response header now used
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 4
diff changeset
251 for(int i=0;i<h->hsize;i++) {
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
252 p = h->ht[i];
45
a24aa388f02f added access log
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 44
diff changeset
253 while(p != NULL) {
7
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
254 /* from http.cpp */
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parents: 4
diff changeset
255 const pb_key *key = PARAM_KEY(p->param);
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parents: 4
diff changeset
256 if (key == pb_key_status || key == pb_key_server || key == pb_key_date) {
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parents: 4
diff changeset
257 /* Skip internal Status:, Server:, and Date: information */
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parents: 4
diff changeset
258 p = p->next;
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parents: 4
diff changeset
259 continue;
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
260 }
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
261 /* end http.cpp */
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parents: 4
diff changeset
262
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
263 char *name = p->param->name;
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
264 char *value = p->param->value;
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
265
77
f1cff81e425a some fixes
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parents: 67
diff changeset
266 // make first char of name uppercase
f1cff81e425a some fixes
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parents: 67
diff changeset
267 size_t name_len = strlen(name);
7
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
268 if(name[0] > 90) {
77
f1cff81e425a some fixes
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parents: 67
diff changeset
269 /*
f1cff81e425a some fixes
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parents: 67
diff changeset
270 * make first char uppercase and write the remaining chars
f1cff81e425a some fixes
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parents: 67
diff changeset
271 * unmodified to the buffer
f1cff81e425a some fixes
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parents: 67
diff changeset
272 */
f1cff81e425a some fixes
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parents: 67
diff changeset
273 sbuf_put(out, name[0]-32);
f1cff81e425a some fixes
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parents: 67
diff changeset
274 if(name_len > 1) {
f1cff81e425a some fixes
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parents: 67
diff changeset
275 sbuf_write(out, name+1, name_len-1);
f1cff81e425a some fixes
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parents: 67
diff changeset
276 }
f1cff81e425a some fixes
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parents: 67
diff changeset
277 } else {
f1cff81e425a some fixes
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parents: 67
diff changeset
278 // first char is already uppercase so just write the name
f1cff81e425a some fixes
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parents: 67
diff changeset
279 sbuf_write(out, name, name_len);
7
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parents: 4
diff changeset
280 }
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parents: 4
diff changeset
281
11
24d804a2799f Fixed response header bug
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parents: 9
diff changeset
282 sbuf_write(out, ": ", 2);
24d804a2799f Fixed response header bug
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 9
diff changeset
283 sbuf_write(out, value, strlen(value));
24d804a2799f Fixed response header bug
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parents: 9
diff changeset
284 sbuf_write(out, "\r\n", 2);
7
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
285
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
286 p = p->next;
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parents: 4
diff changeset
287 }
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
288 }
3c2ed7a7a5fd request and response header now used
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 4
diff changeset
289 }
3c2ed7a7a5fd request and response header now used
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parents: 4
diff changeset
290
4
998844b5ed25 Added some protocol functions
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parents:
diff changeset
291 int http_start_response(Session *sn, Request *rq) {
65
14722c5f8856 added chunked transfer encoding
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parents: 48
diff changeset
292 int fd = ((NetIOStream*)sn->csd)->fd;
4
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parents:
diff changeset
293
23
a2c8fc23c90e Added basic authentication
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parents: 21
diff changeset
294 if(rq->status_num == -1) {
a2c8fc23c90e Added basic authentication
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parents: 21
diff changeset
295 protocol_status(sn, rq, 200, "OK");
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parents: 21
diff changeset
296 }
a2c8fc23c90e Added basic authentication
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parents: 21
diff changeset
297
65
14722c5f8856 added chunked transfer encoding
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parents: 48
diff changeset
298 // set socket blocking
67
50505dc3f8a6 dynamic thread pool
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parents: 66
diff changeset
299 //int flags;
50505dc3f8a6 dynamic thread pool
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parents: 66
diff changeset
300 //flags = fcntl(fd, F_GETFL, 0);
50505dc3f8a6 dynamic thread pool
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parents: 66
diff changeset
301 //fcntl(fd, F_SETFL, flags ^ O_NONBLOCK);
4
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parents:
diff changeset
302
65
14722c5f8856 added chunked transfer encoding
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parents: 48
diff changeset
303 // output buffer
11
24d804a2799f Fixed response header bug
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parents: 9
diff changeset
304 sbuf_t *out = sbuf_new(512);
4
998844b5ed25 Added some protocol functions
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parents:
diff changeset
305
65
14722c5f8856 added chunked transfer encoding
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parents: 48
diff changeset
306 // add the http status line to the output buffer
11
24d804a2799f Fixed response header bug
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parents: 9
diff changeset
307 add_http_status_line(out, sn->pool, rq);
4
998844b5ed25 Added some protocol functions
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parents:
diff changeset
308
65
14722c5f8856 added chunked transfer encoding
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parents: 48
diff changeset
309 // add server header
48
37a512d7b8f6 fixed some memory leaks
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parents: 45
diff changeset
310 sbuf_write(out, "Server: webserver\r\n", 19);
65
14722c5f8856 added chunked transfer encoding
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 48
diff changeset
311
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312 // check content length ans transfer encoding
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313 char *ctlen = pblock_findkeyval(pb_key_content_length, rq->srvhdrs);
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314 char *enc = pblock_findkeyval(pb_key_transfer_encoding, rq->srvhdrs);
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315 if(ctlen && enc) {
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316 pblock_removekey(pb_key_transfer_encoding, rq->srvhdrs);
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317 }
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318 if(!ctlen) {
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319 // set transfer-encoding header
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320 if(!enc) {
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321 pblock_kvinsert(
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322 pb_key_transfer_encoding,
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323 "chunked",
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324 7,
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325 rq->srvhdrs);
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326 } else if(strcmp(enc, "chunked")) {
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327 pblock_removekey(pb_key_transfer_encoding, rq->srvhdrs);
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328 pblock_kvinsert(
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329 pb_key_transfer_encoding,
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330 "chunked",
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331 7,
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332 rq->srvhdrs);
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333 }
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334
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335 // set stream property
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336 NetIOStream *stream = (NetIOStream*)sn->csd;
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337 stream->chunked_enc = 1;
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338 rq->rq_attr.chunked = 1;
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339 }
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340
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341 // add header from rq->srvhdrs
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342 add_http_response_header(out, rq);
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343
65
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344 // add connection header
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345 char *conn_str = pblock_findkeyval(pb_key_connection, rq->headers);
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346 if(conn_str && !strcasecmp(conn_str, "keep-alive")) {
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347 sbuf_write(out, "Connection: keep-alive\r\n", 24);
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348 pblock_kvinsert(pb_key_connection, "keep-alive", 10, rq->srvhdrs);
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349 rq->rq_attr.keep_alive = 1;
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350 } else {
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351 sbuf_write(out, "Connection: close\r\n", 19);
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352 pblock_kvinsert(pb_key_connection, "close", 5, rq->srvhdrs);
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353 }
7
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354
65
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355 // response header end
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356 sbuf_write(out, "\r\n", 2);
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357
65
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358 // flush buffer to the socket
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359 write(fd, out->ptr, out->length);
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360 sbuf_free(out);
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361
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362 rq->senthdrs = 1;
38
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363
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364 return 0;
4
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365 }
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366
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367 int request_header(char *name, char **value, Session *sn, Request *rq) {
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368 const pb_key *key = pblock_key(name);
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369 pb_param *pp = pblock_findkey(key, rq->headers);
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370 if(pp != NULL) {
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371 *value = pp->value;
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372 return REQ_PROCEED;
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373 } else {
38
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374 //return REQ_ABORTED;
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375 *value = NULL;
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376 return REQ_NOACTION;
9
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377 }
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378 }
82
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379
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380 char *http_uri2url(const char *prefix, const char *suffix) {
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381 // TODO: implement
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382 return NULL;
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383 }
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384
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385 char *http_uri2url_dynamic(const char *prefix, const char *suffix,
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386 Session *sn, Request *rq)
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387 {
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388 // TODO: implement
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389 return NULL;
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390 }

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