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1 | /***************************************************************************** |
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2 | * Copyright (C) 2008-2014 |
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3 | * |
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4 | * Michiel Broek <mbroek at mbse dot eu> |
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5 | * |
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6 | * This file is part of the mbsePi-apps |
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7 | * |
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8 | * This is free software; you can redistribute it and/or modify it |
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9 | * under the terms of the GNU General Public License as published by the |
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10 | * Free Software Foundation; either version 2, or (at your option) any |
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11 | * later version. |
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12 | * |
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13 | * mbsePi-apps is distributed in the hope that it will be useful, but |
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14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 | * General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with EC-65K; see the file COPYING. If not, write to the Free |
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20 | * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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21 | *****************************************************************************/ |
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22 | |
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23 | #include "thermferm.h" |
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24 | |
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25 | |
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26 | extern int my_shutdown; |
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27 | extern int debug; |
71 | 28 | extern int current_unit; |
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29 | #ifdef HAVE_WIRINGPI_H |
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30 | extern int lcdHandle; |
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31 | extern unsigned char lcdbuf[MAX_LCDS][20][4]; |
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32 | #endif |
43 | 33 | extern sys_config Config; |
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34 | |
43 | 35 | int s; /* connected socket */ |
36 | int ls; /* listen socket */ | |
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37 | |
43 | 38 | struct sockaddr_in myaddr_in; /* for local socket address */ |
39 | struct sockaddr_in peeraddr_in; /* for peer socket address */ | |
40 | ||
41 | struct hostent *hp; | |
42 | ||
43 | #define SS_BUFSIZE 1024 | |
44 | #define SS_TIMEOUT 300 | |
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45 | |
48 | 46 | |
47 | float cv_beerDiff = 0.0; | |
48 | ||
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49 | |
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50 | |
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51 | void defaultControlSettings(void) |
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52 | { |
53 | 53 | Config.cs_mode = 'o'; /* o = Off, f = fridge, b = beer, p = profile-run */ |
54 | Config.cs_beerSet = 20.0; | |
55 | Config.cs_fridgeSet = 20.0; | |
56 | Config.cs_heatEstimator = 0.2; | |
57 | Config.cs_coolEstimator = 5; | |
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58 | } |
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59 | |
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60 | |
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61 | |
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62 | void defaultControlConstants(void) |
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63 | { |
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64 | Config.tempFormat = 'C'; |
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65 | Config.cc_tempSetMin = 1.0; |
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66 | Config.cc_tempSetMax = 30.0; |
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67 | Config.cc_idleRangeH = 1.000; |
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68 | Config.cc_idleRangeL = -1.000; |
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69 | } |
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70 | |
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71 | |
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72 | |
43 | 73 | /* |
74 | * Send message to client | |
75 | */ | |
76 | int srv_send(const char *format, ...) | |
77 | { | |
78 | char out[SS_BUFSIZE]; | |
79 | va_list va_ptr; | |
80 | ||
81 | if (s == -1) | |
82 | return -1; | |
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83 | |
43 | 84 | va_start(va_ptr, format); |
85 | vsnprintf(out, SS_BUFSIZE-1, format, va_ptr); | |
86 | va_end(va_ptr); | |
87 | ||
48 | 88 | if (debug) { |
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89 | syslog(LOG_NOTICE, "send: \"%s\"", out); |
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90 | fprintf(stdout, "send: \"%s\"\n", out); |
48 | 91 | } |
44 | 92 | |
43 | 93 | if (send(s, out, strlen(out), 0) != strlen(out)) { |
94 | syslog(LOG_NOTICE, "srv_send failed"); | |
95 | return -1; | |
96 | } | |
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97 | |
43 | 98 | if (send(s, (char *)"\r\n", 2, 0) != 2) { |
99 | syslog(LOG_NOTICE, "srv_send failed"); | |
100 | return -1; | |
101 | } | |
102 | ||
103 | return 0; | |
104 | } | |
105 | ||
106 | ||
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107 | |
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108 | int unit_add(char *buf) |
43 | 109 | { |
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110 | units_list *unit, *tmp; |
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111 | uuid_t uu; |
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112 | char *cmd, *opt; |
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113 | int id = 1; |
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114 | |
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115 | cmd = strtok(buf, " \0"); |
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116 | opt = strtok(NULL, "\0"); |
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117 | if (opt == NULL) { |
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118 | srv_send((char *)"501 Parameter missing"); |
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119 | return 1; |
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120 | } |
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121 | |
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122 | if (debug) |
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123 | fprintf(stdout, "cmd: '%s' opt: '%s'\n", MBSE_SS(cmd), MBSE_SS(opt)); |
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124 | |
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125 | unit = (units_list *)malloc(sizeof(units_list)); |
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126 | unit->next = NULL; |
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127 | unit->uuid = malloc(37); |
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128 | uuid_generate(uu); |
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129 | uuid_unparse(uu, unit->uuid); |
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130 | unit->name = xstrcpy(opt); |
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131 | unit->air_address = unit->beer_address = unit->io1_address = unit->io2_address = unit->profile = NULL; |
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132 | unit->volume = 0.0; |
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133 | unit->heater_available = unit->cooler_available = unit->fan_available = FALSE; |
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134 | unit->air_temp = unit->beer_temp = unit->beer_set = unit->fridge_set = 20.0; |
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135 | unit->heater_state = unit->cooler_state = unit->fan_state = unit->door_state = unit->mode = 0; |
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136 | unit->temp_set_min = 1.0; |
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137 | unit->temp_set_max = 30.0; |
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138 | unit->idle_rangeH = 1.0; |
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139 | unit->idle_rangeL = -1.0; |
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140 | unit->prof_started = (time_t)0; |
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141 | |
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142 | if (Config.units == NULL) { |
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143 | Config.units = unit; |
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144 | } else { |
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145 | for (tmp = Config.units; tmp; tmp = tmp->next) { |
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146 | id++; |
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147 | if (tmp->next == NULL) { |
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148 | tmp->next = unit; |
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149 | break; |
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150 | } |
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151 | } |
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152 | } |
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153 | |
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154 | syslog(LOG_NOTICE, "Unit %d with uuid %s added", id, unit->uuid); |
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155 | srv_send((char *)"211 Unit %d with uuid %s added", id, unit->uuid); |
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156 | current_unit = id; |
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157 | return 0; |
43 | 158 | } |
159 | ||
160 | ||
161 | ||
162 | void cmd_server(void) | |
163 | { | |
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164 | char *inp, *p, *q, buf[SS_BUFSIZE], obuf[SS_BUFSIZE]; |
48 | 165 | int i, rc, rlen; |
43 | 166 | socklen_t fromlen; |
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167 | float newtemp; |
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168 | #ifdef HAVE_WIRINGPI_H |
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169 | int j; |
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170 | #endif |
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171 | |
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172 | // if (debug) { |
52 | 173 | // char *hostname = inet_ntoa(peeraddr_in.sin_addr); |
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174 | // syslog(LOG_NOTICE, "Start new client connection from %s port %u", hostname, ntohs(peeraddr_in.sin_port)); |
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175 | // fprintf(stdout, "Start new client connection from %s port %u\n", hostname, ntohs(peeraddr_in.sin_port)); |
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176 | // } |
43 | 177 | |
48 | 178 | memset((char *)&buf, 0, SS_BUFSIZE); |
179 | fromlen = sizeof(peeraddr_in); | |
180 | rlen = recvfrom(s, buf, sizeof(buf) -1, 0, (struct sockaddr *)&peeraddr_in, &fromlen); | |
181 | if (rlen == -1) { | |
182 | syslog(LOG_NOTICE, "recvfrom(): %s", strerror(errno)); | |
183 | } else { | |
184 | for (i = 0; i < strlen(buf); i++) { | |
185 | if (buf[i] == '\n') | |
186 | buf[i] = '\0'; | |
187 | if (buf[i] == '\r') | |
188 | buf[i] = '\0'; | |
189 | } | |
80
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190 | for (i = strlen(buf) -1; i > 0; i--) { |
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191 | if (buf[i] == ' ') |
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192 | buf[i] = '\0'; |
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193 | else |
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194 | break; |
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195 | } |
48 | 196 | if (strlen(buf)) { |
197 | if (debug) { | |
198 | syslog(LOG_NOTICE, "recv: \"%s\"", buf); | |
199 | fprintf(stdout, "recv: \"%s\"\n", buf); | |
43 | 200 | } |
201 | ||
202 | /* | |
48 | 203 | * Process commands from the client |
43 | 204 | */ |
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205 | if (strncmp(buf, "ADD", 3) == 0) { |
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206 | unit_add(buf); |
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207 | } else if (strncmp(buf, "HELP", 4) == 0) { |
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208 | srv_send((char *)"100 Help text follows"); |
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209 | srv_send((char *)"Recognized commands:"); |
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210 | srv_send((char *)""); |
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211 | srv_send((char *)"ADD name Add a new unit with \"name\""); |
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212 | srv_send((char *)"LCD Get LCD screen (allways 4 rows of 20 characters)"); |
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213 | srv_send((char *)"."); |
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214 | } else if (strncmp(buf, "LCD", 3) == 0) { |
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215 | #ifdef HAVE_WIRINGPI_H |
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216 | srv_send((char *)"201 information follows"); |
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217 | for (j = 0; j < 4; j++) { |
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218 | sprintf(obuf, " "); |
70 | 219 | obuf[20] = '\0'; |
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220 | for (i = 0; i < 20; i++) |
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221 | obuf[i] = lcdbuf[lcdHandle][i][j]; |
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222 | srv_send(obuf); |
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223 | } |
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224 | srv_send((char *)"."); |
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225 | #else |
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226 | srv_send((char *)"403 LCD not available"); |
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227 | #endif |
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228 | } else if (strncmp(buf, "ack", 3) == 0) { |
48 | 229 | srv_send((char *)"ack"); |
230 | } else if (strncmp(buf, "lcd", 3) == 0) { | |
231 | sprintf(obuf, "[\" \", \" \", \" \", \" \"]"); | |
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232 | #ifdef HAVE_WIRINGPI_H |
48 | 233 | for (i = 0; i < 20; i++) { |
234 | obuf[i+2] = lcdbuf[lcdHandle][i][0]; | |
235 | obuf[i+26] = lcdbuf[lcdHandle][i][1]; | |
236 | obuf[i+50] = lcdbuf[lcdHandle][i][2]; | |
237 | obuf[i+74] = lcdbuf[lcdHandle][i][3]; | |
238 | } | |
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239 | #endif |
48 | 240 | srv_send(obuf); |
241 | } else if (strncmp(buf, "getMode", 7) == 0) { | |
53 | 242 | srv_send("%c", Config.cs_mode); |
48 | 243 | } else if (strncmp(buf, "getFridge", 9) == 0) { |
53 | 244 | srv_send("%.1f", Config.cs_fridgeSet); |
48 | 245 | } else if (strncmp(buf, "getBeer", 7) == 0) { |
53 | 246 | srv_send("%.1f", Config.cs_beerSet); |
48 | 247 | } else if (strncmp(buf, "getControlConstants", 19) == 0) { |
248 | srv_send("{ \"tempFormat\":\"%c\", \"tempSetMin\":%.1f, \"tempSetMax\":%.1f, \"idleRangeH\":%.3f, \"idleRangeL\":%.3f }", | |
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249 | Config.tempFormat, Config.cc_tempSetMin, Config.cc_tempSetMax, Config.cc_idleRangeH, Config.cc_idleRangeL ); |
48 | 250 | } else if (strncmp(buf, "getControlSettings", 18) == 0) { |
251 | srv_send("{ \"mode\":\"%c\", \"beerSet\":%.1f, \"fridgeSet\":%.1f, \"heatEstimator\":%.1f, \"coolEstimator\":%.1f }", | |
53 | 252 | Config.cs_mode, Config.cs_beerSet, Config.cs_fridgeSet, Config.cs_heatEstimator, Config.cs_coolEstimator); |
48 | 253 | } else if (strncmp(buf, "getControlVariables", 19) == 0) { |
254 | srv_send("{ \"beerDiff\":%.2f }", cv_beerDiff); | |
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255 | } else if (strncmp(buf, "loadDefaultControlSettings", 26) == 0) { |
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256 | defaultControlSettings(); |
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257 | srv_send("ack"); |
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258 | } else if (strncmp(buf, "loadDefaultControlConstants", 27) == 0) { |
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259 | defaultControlConstants(); |
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260 | srv_send("ack"); |
48 | 261 | } else if (strncmp(buf, "setBeer=", 8) == 0) { |
262 | inp = xstrcpy(buf+8); | |
263 | rc = sscanf(inp, "%f", &newtemp); | |
264 | if (debug) | |
265 | fprintf(stdout, "new temp from %s, %.1f, rc=%d\n", inp, newtemp, rc); | |
266 | if (rc == 1) { | |
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267 | if ((Config.cc_tempSetMin <= newtemp) && (newtemp <= Config.cc_tempSetMax)) { |
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268 | syslog(LOG_NOTICE, "Beer temperature set to %.1f degrees in web interface", newtemp); |
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269 | srv_send("ack"); |
53 | 270 | Config.cs_mode = 'b'; |
271 | Config.cs_beerSet = newtemp; | |
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272 | } else { |
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273 | syslog(LOG_NOTICE, "Beer temperature setting %.1f is outside of allowed range %.1f - %.1f", newtemp, Config.cc_tempSetMin, Config.cc_tempSetMax); |
51
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274 | srv_send("err"); |
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275 | } |
48 | 276 | } else { |
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277 | syslog(LOG_NOTICE, "Cannot convert temperature '%s' to float", inp); |
48 | 278 | srv_send("err"); |
279 | } | |
280 | free(inp); | |
281 | } else if (strncmp(buf, "setFridge=", 10) == 0) { | |
282 | inp = xstrcpy(buf+10); | |
283 | rc = sscanf(inp, "%f", &newtemp); | |
284 | if (debug) | |
285 | fprintf(stdout, "new temp from %s, %.1f, rc=%d\n", inp, newtemp, rc); | |
286 | if (rc == 1) { | |
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287 | if ((Config.cc_tempSetMin <= newtemp) && (newtemp <= Config.cc_tempSetMax)) { |
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288 | syslog(LOG_NOTICE, "Fridge temperature set to %.1f degrees in web interface", newtemp); |
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289 | srv_send("ack"); |
53 | 290 | Config.cs_mode = 'f'; |
291 | Config.cs_fridgeSet = newtemp; | |
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292 | } else { |
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293 | syslog(LOG_NOTICE, "Fridge temperature setting %.1f is outside of allowed range %.1f - %.1f", newtemp, Config.cc_tempSetMin, Config.cc_tempSetMax); |
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294 | srv_send("err"); |
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295 | } |
48 | 296 | } else { |
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297 | syslog(LOG_NOTICE, "Cannot convert temperature '%s' to float", inp); |
48 | 298 | srv_send("err"); |
299 | } | |
300 | free(inp); | |
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301 | } else if (strncmp(buf, "setOff", 6) == 0) { |
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302 | if (debug) |
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303 | fprintf(stdout, "temperature control disabled\n"); |
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304 | syslog(LOG_NOTICE, "Notification: Temperature control disabled"); |
53 | 305 | Config.cs_mode = 'o'; |
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306 | srv_send("ack"); |
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307 | } else if (strncmp(buf, "setParameters=", 14) == 0) { |
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308 | inp = xstrcpy(buf+14); /* {"tempSetMax":30.5} */ |
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309 | if (debug) |
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310 | fprintf(stdout, "setParameters: %s\n", inp); |
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311 | strtok(inp, (char *)"\""); |
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312 | p = strtok(NULL, (char *)"\""); |
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313 | q = strtok(NULL, (char *)":,}"); |
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314 | if (strcmp(p, (char *)"tempSetMin") == 0) { |
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315 | rc = sscanf(q, "%f", &newtemp); |
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316 | if (rc == 1) { |
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317 | syslog(LOG_NOTICE, "cc_tempSetMin = %1.f", newtemp); |
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318 | Config.cc_tempSetMin = newtemp; |
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319 | srv_send("ack"); |
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320 | } else { |
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321 | srv_send("ERR"); |
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322 | } |
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323 | } else if (strcmp(p, (char *)"tempSetMax") == 0) { |
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324 | rc = sscanf(q, "%f", &newtemp); |
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325 | if (rc == 1) { |
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326 | syslog(LOG_NOTICE, "cc_tempSetMax = %1.f", newtemp); |
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327 | Config.cc_tempSetMax = newtemp; |
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328 | srv_send("ack"); |
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329 | } else { |
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330 | srv_send("ERR"); |
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331 | } |
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332 | } else { |
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333 | fprintf(stdout, "p='%s' q='%s' inp='%s'\n", p, q, inp); |
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334 | srv_send("ERR"); |
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335 | } |
62 | 336 | free(inp); |
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337 | // stopScript |
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338 | // quit |
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339 | // eraseLogs |
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340 | // interval |
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341 | // startNewBrew |
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342 | // pauseLogging |
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343 | // stopLogging |
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344 | // resumeLogging |
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345 | // dateTimeFormatDisplay |
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346 | } else if (strncmp(buf, "setActiveProfile", 16) == 0) { |
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347 | syslog(LOG_NOTICE, "Setting profile '%s' as active profile", "undefined"); |
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348 | // programArduino |
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349 | // refreshDeviceList |
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350 | // getDeviceList |
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351 | // applyDevice |
43 | 352 | } else { |
48 | 353 | if (debug) |
354 | fprintf(stdout, "unknown command \"%s\"\n", buf); | |
355 | srv_send((char *)"ERR"); | |
43 | 356 | } |
357 | } | |
42
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358 | } |
44 | 359 | |
51
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360 | // if (debug) { |
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361 | // syslog(LOG_NOTICE, "End connection from %s port %u", hostname, ntohs(peeraddr_in.sin_port)); |
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362 | // fprintf(stdout, "End connection from %s port %u\n", hostname, ntohs(peeraddr_in.sin_port)); |
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363 | // } |
48 | 364 | |
44 | 365 | close(s); |
42
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366 | } |
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367 | |
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368 | |
66
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369 | #ifdef HAVE_WIRINGPI_H |
43 | 370 | PI_THREAD (my_server_loop) |
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371 | #else |
74 | 372 | void *my_server_loop(void *threadid) |
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373 | #endif |
43 | 374 | { |
375 | socklen_t addrlen; | |
44 | 376 | int optval = 1; |
43 | 377 | |
378 | syslog(LOG_NOTICE, "Thread my_server_loop started"); | |
379 | if (debug) | |
380 | fprintf(stdout, "Thread my_server_loop started\n"); | |
381 | ||
44 | 382 | memset((char *)&myaddr_in, 0, sizeof(struct sockaddr_in)); |
383 | memset((char *)&peeraddr_in, 0, sizeof(struct sockaddr_in)); | |
384 | myaddr_in.sin_family = AF_INET; | |
385 | myaddr_in.sin_addr.s_addr = INADDR_ANY; | |
386 | myaddr_in.sin_port = htons(Config.my_port); | |
387 | ||
388 | ls = socket(AF_INET, SOCK_STREAM, 0); | |
389 | if (ls == -1) { | |
390 | syslog(LOG_NOTICE, "Can't create listen socket: %s", strerror(errno)); | |
391 | fprintf(stderr, "Can't create listen socket: %s\n", strerror(errno)); | |
392 | return 0; | |
393 | } | |
394 | ||
395 | if (setsockopt(ls, SOL_SOCKET, SO_KEEPALIVE, &optval, sizeof(optval)) == -1) { | |
396 | syslog(LOG_NOTICE, "Can't setsockopt SO_KEEPALIVE socket: %s", strerror(errno)); | |
397 | close(ls); | |
398 | return 0; | |
399 | } | |
400 | ||
401 | if (setsockopt(ls, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)) == -1) { | |
402 | syslog(LOG_NOTICE, "Can't setsockopt SO_REUSEADDR socket: %s", strerror(errno)); | |
403 | close(ls); | |
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404 | return 0; |
44 | 405 | } |
406 | ||
407 | if (bind(ls, (struct sockaddr *)&myaddr_in, sizeof(struct sockaddr_in)) == -1) { | |
408 | syslog(LOG_NOTICE, "Can't bind to listen socket: %s", strerror(errno)); | |
409 | close(ls); | |
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410 | return 0; |
44 | 411 | } |
412 | ||
413 | if (listen(ls, 5) == -1) { | |
414 | syslog(LOG_NOTICE, "Can't listen on listen socket: %s", strerror(errno)); | |
415 | close(ls); | |
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416 | return 0; |
44 | 417 | } |
418 | ||
419 | syslog(LOG_NOTICE, "listen socket created %d", ls); | |
420 | if (debug) | |
421 | fprintf(stdout, "listen socket created %d\n", ls); | |
422 | ||
423 | ||
43 | 424 | /* |
425 | * Loop forever until the external shutdown variable is set. | |
426 | */ | |
427 | for (;;) { | |
428 | ||
429 | addrlen = sizeof(struct sockaddr_in); | |
430 | /* | |
431 | * This call will block until a new connection | |
432 | * arrives. Then it will return the address of | |
433 | * the connecting peer, and a new socket | |
434 | * descriptor, s, for that connection. | |
435 | */ | |
436 | s = accept(ls, (struct sockaddr *)&peeraddr_in, &addrlen); | |
437 | if (s == -1) { | |
438 | syslog(LOG_NOTICE, "my_server_loop accept failed %s", strerror(errno)); | |
439 | if (debug) | |
440 | fprintf(stdout, "my_server_loop accept failed %s\n", strerror(errno)); | |
44 | 441 | return 0; |
43 | 442 | } |
443 | ||
48 | 444 | cmd_server(); |
43 | 445 | |
446 | if (my_shutdown) { | |
447 | syslog(LOG_NOTICE, "Thread my_server_loop stopped"); | |
448 | if (debug) | |
449 | fprintf(stdout, "Thread my_server_loop stopped\n"); | |
450 | return 0; | |
451 | } | |
452 | ||
453 | } | |
454 | } | |
455 | ||
456 |