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Added uuid library
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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 | |
79 | 73 | int unit_add(char *name) |
74 | { | |
75 | units_list *unit, *tmp; | |
76 | uuid_t uu; | |
77 | ||
78 | unit = (units_list *)malloc(sizeof(units_list)); | |
79 | unit->next = NULL; | |
80 | unit->uuid = malloc(37); | |
81 | uuid_generate(uu); | |
82 | uuid_unparse(uu, unit->uuid); | |
83 | unit->name = xstrcpy(name); | |
84 | unit->air_address = unit->beer_address = unit->io1_address = unit->io2_address = unit->profile = NULL; | |
85 | unit->volume = 0.0; | |
86 | unit->heater_available = unit->cooler_available = unit->fan_available = FALSE; | |
87 | unit->air_temp = unit->beer_temp = unit->beer_set = unit->fridge_set = 20.0; | |
88 | unit->heater_state = unit->cooler_state = unit->fan_state = unit->door_state = unit->mode = 0; | |
89 | unit->temp_set_min = 1.0; | |
90 | unit->temp_set_max = 30.0; | |
91 | unit->idle_rangeH = 1.0; | |
92 | unit->idle_rangeL = -1.0; | |
93 | unit->prof_started = (time_t)0; | |
94 | ||
95 | ||
96 | if (Config.units == NULL) { | |
97 | Config.units = unit; | |
98 | } else { | |
99 | for (tmp = Config.units; tmp; tmp = tmp->next) { | |
100 | if (tmp->next == NULL) { | |
101 | tmp->next = unit; | |
102 | break; | |
103 | } | |
104 | } | |
105 | } | |
106 | return 0; | |
107 | } | |
108 | ||
109 | ||
110 | ||
43 | 111 | /* |
112 | * Send message to client | |
113 | */ | |
114 | int srv_send(const char *format, ...) | |
115 | { | |
116 | char out[SS_BUFSIZE]; | |
117 | va_list va_ptr; | |
118 | ||
119 | if (s == -1) | |
120 | return -1; | |
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121 | |
43 | 122 | va_start(va_ptr, format); |
123 | vsnprintf(out, SS_BUFSIZE-1, format, va_ptr); | |
124 | va_end(va_ptr); | |
125 | ||
48 | 126 | if (debug) { |
127 | syslog(LOG_NOTICE, "send: \"%s\"", out); | |
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128 | fprintf(stdout, "send: \"%s\"\n", out); |
48 | 129 | } |
44 | 130 | |
43 | 131 | if (send(s, out, strlen(out), 0) != strlen(out)) { |
132 | syslog(LOG_NOTICE, "srv_send failed"); | |
133 | return -1; | |
134 | } | |
135 | ||
136 | if (send(s, (char *)"\r\n", 2, 0) != 2) { | |
137 | syslog(LOG_NOTICE, "srv_send failed"); | |
138 | return -1; | |
139 | } | |
140 | ||
141 | return 0; | |
142 | } | |
143 | ||
144 | ||
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145 | |
43 | 146 | void cmd_die(int onsig) |
147 | { | |
148 | syslog(LOG_NOTICE, "Server process die on signal %d", onsig); | |
149 | close(s); | |
150 | exit(0); | |
151 | } | |
152 | ||
153 | ||
154 | ||
155 | void cmd_server(void) | |
156 | { | |
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157 | char *inp, *p, *q, buf[SS_BUFSIZE], obuf[SS_BUFSIZE]; |
48 | 158 | int i, rc, rlen; |
43 | 159 | socklen_t fromlen; |
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160 | float newtemp; |
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161 | #ifdef HAVE_WIRINGPI_H |
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162 | int j; |
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163 | #endif |
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164 | |
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165 | // if (debug) { |
52 | 166 | // char *hostname = inet_ntoa(peeraddr_in.sin_addr); |
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167 | // syslog(LOG_NOTICE, "Start new client connection from %s port %u", hostname, ntohs(peeraddr_in.sin_port)); |
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168 | // fprintf(stdout, "Start new client connection from %s port %u\n", hostname, ntohs(peeraddr_in.sin_port)); |
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169 | // } |
43 | 170 | |
48 | 171 | memset((char *)&buf, 0, SS_BUFSIZE); |
172 | fromlen = sizeof(peeraddr_in); | |
173 | rlen = recvfrom(s, buf, sizeof(buf) -1, 0, (struct sockaddr *)&peeraddr_in, &fromlen); | |
174 | if (rlen == -1) { | |
175 | syslog(LOG_NOTICE, "recvfrom(): %s", strerror(errno)); | |
176 | } else { | |
177 | for (i = 0; i < strlen(buf); i++) { | |
178 | if (buf[i] == '\n') | |
179 | buf[i] = '\0'; | |
180 | if (buf[i] == '\r') | |
181 | buf[i] = '\0'; | |
182 | } | |
183 | if (strlen(buf)) { | |
184 | if (debug) { | |
185 | syslog(LOG_NOTICE, "recv: \"%s\"", buf); | |
186 | fprintf(stdout, "recv: \"%s\"\n", buf); | |
43 | 187 | } |
188 | ||
189 | /* | |
48 | 190 | * Process commands from the client |
43 | 191 | */ |
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192 | if (strncmp(buf, "HELP", 4) == 0) { |
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193 | srv_send((char *)"100 Help text follows"); |
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194 | srv_send((char *)"Recognized commands:"); |
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195 | srv_send((char *)""); |
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196 | srv_send((char *)"LCD Get LCD screen (allways 4 rows of 20 characters)"); |
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197 | srv_send((char *)"."); |
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198 | } else if (strncmp(buf, "LCD", 3) == 0) { |
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199 | #ifdef HAVE_WIRINGPI_H |
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200 | srv_send((char *)"201 information follows"); |
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201 | for (j = 0; j < 4; j++) { |
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202 | sprintf(obuf, " "); |
70 | 203 | obuf[20] = '\0'; |
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204 | for (i = 0; i < 20; i++) |
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205 | obuf[i] = lcdbuf[lcdHandle][i][j]; |
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206 | srv_send(obuf); |
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207 | } |
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208 | srv_send((char *)"."); |
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209 | #else |
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210 | srv_send((char *)"403 LCD not available"); |
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211 | #endif |
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212 | } else if (strncmp(buf, "ack", 3) == 0) { |
48 | 213 | srv_send((char *)"ack"); |
214 | } else if (strncmp(buf, "lcd", 3) == 0) { | |
215 | sprintf(obuf, "[\" \", \" \", \" \", \" \"]"); | |
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216 | #ifdef HAVE_WIRINGPI_H |
48 | 217 | for (i = 0; i < 20; i++) { |
218 | obuf[i+2] = lcdbuf[lcdHandle][i][0]; | |
219 | obuf[i+26] = lcdbuf[lcdHandle][i][1]; | |
220 | obuf[i+50] = lcdbuf[lcdHandle][i][2]; | |
221 | obuf[i+74] = lcdbuf[lcdHandle][i][3]; | |
222 | } | |
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223 | #endif |
48 | 224 | srv_send(obuf); |
225 | } else if (strncmp(buf, "getMode", 7) == 0) { | |
53 | 226 | srv_send("%c", Config.cs_mode); |
48 | 227 | } else if (strncmp(buf, "getFridge", 9) == 0) { |
53 | 228 | srv_send("%.1f", Config.cs_fridgeSet); |
48 | 229 | } else if (strncmp(buf, "getBeer", 7) == 0) { |
53 | 230 | srv_send("%.1f", Config.cs_beerSet); |
48 | 231 | } else if (strncmp(buf, "getControlConstants", 19) == 0) { |
232 | srv_send("{ \"tempFormat\":\"%c\", \"tempSetMin\":%.1f, \"tempSetMax\":%.1f, \"idleRangeH\":%.3f, \"idleRangeL\":%.3f }", | |
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233 | Config.tempFormat, Config.cc_tempSetMin, Config.cc_tempSetMax, Config.cc_idleRangeH, Config.cc_idleRangeL ); |
48 | 234 | } else if (strncmp(buf, "getControlSettings", 18) == 0) { |
235 | srv_send("{ \"mode\":\"%c\", \"beerSet\":%.1f, \"fridgeSet\":%.1f, \"heatEstimator\":%.1f, \"coolEstimator\":%.1f }", | |
53 | 236 | Config.cs_mode, Config.cs_beerSet, Config.cs_fridgeSet, Config.cs_heatEstimator, Config.cs_coolEstimator); |
48 | 237 | } else if (strncmp(buf, "getControlVariables", 19) == 0) { |
238 | srv_send("{ \"beerDiff\":%.2f }", cv_beerDiff); | |
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239 | } else if (strncmp(buf, "loadDefaultControlSettings", 26) == 0) { |
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240 | defaultControlSettings(); |
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241 | srv_send("ack"); |
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242 | } else if (strncmp(buf, "loadDefaultControlConstants", 27) == 0) { |
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243 | defaultControlConstants(); |
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244 | srv_send("ack"); |
48 | 245 | } else if (strncmp(buf, "setBeer=", 8) == 0) { |
246 | inp = xstrcpy(buf+8); | |
247 | rc = sscanf(inp, "%f", &newtemp); | |
248 | if (debug) | |
249 | fprintf(stdout, "new temp from %s, %.1f, rc=%d\n", inp, newtemp, rc); | |
250 | if (rc == 1) { | |
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251 | if ((Config.cc_tempSetMin <= newtemp) && (newtemp <= Config.cc_tempSetMax)) { |
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252 | syslog(LOG_NOTICE, "Beer temperature set to %.1f degrees in web interface", newtemp); |
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253 | srv_send("ack"); |
53 | 254 | Config.cs_mode = 'b'; |
255 | Config.cs_beerSet = newtemp; | |
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256 | } else { |
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257 | syslog(LOG_NOTICE, "Beer temperature setting %.1f is outside of allowed range %.1f - %.1f", newtemp, Config.cc_tempSetMin, Config.cc_tempSetMax); |
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258 | srv_send("err"); |
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259 | } |
48 | 260 | } else { |
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261 | syslog(LOG_NOTICE, "Cannot convert temperature '%s' to float", inp); |
48 | 262 | srv_send("err"); |
263 | } | |
264 | free(inp); | |
265 | } else if (strncmp(buf, "setFridge=", 10) == 0) { | |
266 | inp = xstrcpy(buf+10); | |
267 | rc = sscanf(inp, "%f", &newtemp); | |
268 | if (debug) | |
269 | fprintf(stdout, "new temp from %s, %.1f, rc=%d\n", inp, newtemp, rc); | |
270 | if (rc == 1) { | |
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271 | if ((Config.cc_tempSetMin <= newtemp) && (newtemp <= Config.cc_tempSetMax)) { |
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272 | syslog(LOG_NOTICE, "Fridge temperature set to %.1f degrees in web interface", newtemp); |
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273 | srv_send("ack"); |
53 | 274 | Config.cs_mode = 'f'; |
275 | Config.cs_fridgeSet = newtemp; | |
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276 | } else { |
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277 | 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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278 | srv_send("err"); |
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279 | } |
48 | 280 | } else { |
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281 | syslog(LOG_NOTICE, "Cannot convert temperature '%s' to float", inp); |
48 | 282 | srv_send("err"); |
283 | } | |
284 | free(inp); | |
49
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285 | } else if (strncmp(buf, "setOff", 6) == 0) { |
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286 | if (debug) |
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287 | fprintf(stdout, "temperature control disabled\n"); |
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288 | syslog(LOG_NOTICE, "Notification: Temperature control disabled"); |
53 | 289 | Config.cs_mode = 'o'; |
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290 | srv_send("ack"); |
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291 | } else if (strncmp(buf, "setParameters=", 14) == 0) { |
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292 | inp = xstrcpy(buf+14); /* {"tempSetMax":30.5} */ |
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293 | if (debug) |
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294 | fprintf(stdout, "setParameters: %s\n", inp); |
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295 | strtok(inp, (char *)"\""); |
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296 | p = strtok(NULL, (char *)"\""); |
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297 | q = strtok(NULL, (char *)":,}"); |
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298 | if (strcmp(p, (char *)"tempSetMin") == 0) { |
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299 | rc = sscanf(q, "%f", &newtemp); |
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300 | if (rc == 1) { |
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301 | syslog(LOG_NOTICE, "cc_tempSetMin = %1.f", newtemp); |
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302 | Config.cc_tempSetMin = newtemp; |
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303 | srv_send("ack"); |
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304 | } else { |
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305 | srv_send("ERR"); |
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306 | } |
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307 | } else if (strcmp(p, (char *)"tempSetMax") == 0) { |
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308 | rc = sscanf(q, "%f", &newtemp); |
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309 | if (rc == 1) { |
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310 | syslog(LOG_NOTICE, "cc_tempSetMax = %1.f", newtemp); |
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311 | Config.cc_tempSetMax = newtemp; |
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312 | srv_send("ack"); |
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313 | } else { |
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314 | srv_send("ERR"); |
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315 | } |
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316 | } else { |
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317 | fprintf(stdout, "p='%s' q='%s' inp='%s'\n", p, q, inp); |
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318 | srv_send("ERR"); |
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319 | } |
62 | 320 | free(inp); |
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321 | // stopScript |
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322 | // quit |
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323 | // eraseLogs |
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324 | // interval |
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325 | // startNewBrew |
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326 | // pauseLogging |
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327 | // stopLogging |
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328 | // resumeLogging |
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329 | // dateTimeFormatDisplay |
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330 | } else if (strncmp(buf, "setActiveProfile", 16) == 0) { |
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331 | syslog(LOG_NOTICE, "Setting profile '%s' as active profile", "undefined"); |
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332 | // programArduino |
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333 | // refreshDeviceList |
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334 | // getDeviceList |
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335 | // applyDevice |
43 | 336 | } else { |
48 | 337 | if (debug) |
338 | fprintf(stdout, "unknown command \"%s\"\n", buf); | |
339 | srv_send((char *)"ERR"); | |
43 | 340 | } |
341 | } | |
42
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342 | } |
44 | 343 | |
51
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344 | // if (debug) { |
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345 | // syslog(LOG_NOTICE, "End connection from %s port %u", hostname, ntohs(peeraddr_in.sin_port)); |
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346 | // fprintf(stdout, "End connection from %s port %u\n", hostname, ntohs(peeraddr_in.sin_port)); |
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347 | // } |
48 | 348 | |
44 | 349 | close(s); |
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350 | } |
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351 | |
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352 | |
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353 | #ifdef HAVE_WIRINGPI_H |
43 | 354 | PI_THREAD (my_server_loop) |
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355 | #else |
74 | 356 | void *my_server_loop(void *threadid) |
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357 | #endif |
43 | 358 | { |
359 | socklen_t addrlen; | |
44 | 360 | int optval = 1; |
43 | 361 | |
362 | syslog(LOG_NOTICE, "Thread my_server_loop started"); | |
363 | if (debug) | |
364 | fprintf(stdout, "Thread my_server_loop started\n"); | |
365 | ||
44 | 366 | memset((char *)&myaddr_in, 0, sizeof(struct sockaddr_in)); |
367 | memset((char *)&peeraddr_in, 0, sizeof(struct sockaddr_in)); | |
368 | myaddr_in.sin_family = AF_INET; | |
369 | myaddr_in.sin_addr.s_addr = INADDR_ANY; | |
370 | myaddr_in.sin_port = htons(Config.my_port); | |
371 | ||
372 | ls = socket(AF_INET, SOCK_STREAM, 0); | |
373 | if (ls == -1) { | |
374 | syslog(LOG_NOTICE, "Can't create listen socket: %s", strerror(errno)); | |
375 | fprintf(stderr, "Can't create listen socket: %s\n", strerror(errno)); | |
376 | return 0; | |
377 | } | |
378 | ||
379 | if (setsockopt(ls, SOL_SOCKET, SO_KEEPALIVE, &optval, sizeof(optval)) == -1) { | |
380 | syslog(LOG_NOTICE, "Can't setsockopt SO_KEEPALIVE socket: %s", strerror(errno)); | |
381 | close(ls); | |
382 | return 0; | |
383 | } | |
384 | ||
385 | if (setsockopt(ls, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)) == -1) { | |
386 | syslog(LOG_NOTICE, "Can't setsockopt SO_REUSEADDR socket: %s", strerror(errno)); | |
387 | close(ls); | |
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388 | return 0; |
44 | 389 | } |
390 | ||
391 | if (bind(ls, (struct sockaddr *)&myaddr_in, sizeof(struct sockaddr_in)) == -1) { | |
392 | syslog(LOG_NOTICE, "Can't bind to listen socket: %s", strerror(errno)); | |
393 | close(ls); | |
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394 | return 0; |
44 | 395 | } |
396 | ||
397 | if (listen(ls, 5) == -1) { | |
398 | syslog(LOG_NOTICE, "Can't listen on listen socket: %s", strerror(errno)); | |
399 | close(ls); | |
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400 | return 0; |
44 | 401 | } |
402 | ||
403 | syslog(LOG_NOTICE, "listen socket created %d", ls); | |
404 | if (debug) | |
405 | fprintf(stdout, "listen socket created %d\n", ls); | |
406 | ||
407 | ||
43 | 408 | /* |
409 | * Loop forever until the external shutdown variable is set. | |
410 | */ | |
411 | for (;;) { | |
412 | ||
413 | addrlen = sizeof(struct sockaddr_in); | |
414 | /* | |
415 | * This call will block until a new connection | |
416 | * arrives. Then it will return the address of | |
417 | * the connecting peer, and a new socket | |
418 | * descriptor, s, for that connection. | |
419 | */ | |
420 | s = accept(ls, (struct sockaddr *)&peeraddr_in, &addrlen); | |
421 | if (s == -1) { | |
422 | syslog(LOG_NOTICE, "my_server_loop accept failed %s", strerror(errno)); | |
423 | if (debug) | |
424 | fprintf(stdout, "my_server_loop accept failed %s\n", strerror(errno)); | |
44 | 425 | return 0; |
43 | 426 | } |
427 | ||
48 | 428 | cmd_server(); |
43 | 429 | |
430 | if (my_shutdown) { | |
431 | syslog(LOG_NOTICE, "Thread my_server_loop stopped"); | |
432 | if (debug) | |
433 | fprintf(stdout, "Thread my_server_loop stopped\n"); | |
434 | return 0; | |
435 | } | |
436 | ||
437 | } | |
438 | } | |
439 | ||
440 |