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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; |
81 | 34 | extern const char UNITMODE[5][8]; |
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35 | |
43 | 36 | int s; /* connected socket */ |
37 | int ls; /* listen socket */ | |
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38 | |
43 | 39 | struct sockaddr_in myaddr_in; /* for local socket address */ |
40 | struct sockaddr_in peeraddr_in; /* for peer socket address */ | |
41 | ||
42 | struct hostent *hp; | |
43 | ||
44 | #define SS_BUFSIZE 1024 | |
45 | #define SS_TIMEOUT 300 | |
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46 | |
48 | 47 | |
48 | float cv_beerDiff = 0.0; | |
49 | ||
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50 | |
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51 | |
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52 | void defaultControlSettings(void) |
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53 | { |
53 | 54 | Config.cs_mode = 'o'; /* o = Off, f = fridge, b = beer, p = profile-run */ |
55 | Config.cs_beerSet = 20.0; | |
56 | Config.cs_fridgeSet = 20.0; | |
57 | Config.cs_heatEstimator = 0.2; | |
58 | Config.cs_coolEstimator = 5; | |
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59 | } |
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60 | |
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61 | |
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62 | |
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63 | void defaultControlConstants(void) |
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64 | { |
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65 | Config.tempFormat = 'C'; |
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66 | Config.cc_tempSetMin = 1.0; |
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67 | Config.cc_tempSetMax = 30.0; |
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68 | Config.cc_idleRangeH = 1.000; |
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69 | Config.cc_idleRangeL = -1.000; |
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70 | } |
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71 | |
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72 | |
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73 | |
43 | 74 | /* |
75 | * Send message to client | |
76 | */ | |
77 | int srv_send(const char *format, ...) | |
78 | { | |
79 | char out[SS_BUFSIZE]; | |
80 | va_list va_ptr; | |
81 | ||
82 | if (s == -1) | |
83 | return -1; | |
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84 | |
43 | 85 | va_start(va_ptr, format); |
86 | vsnprintf(out, SS_BUFSIZE-1, format, va_ptr); | |
87 | va_end(va_ptr); | |
88 | ||
48 | 89 | if (debug) { |
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90 | syslog(LOG_NOTICE, "send: \"%s\"", out); |
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91 | fprintf(stdout, "send: \"%s\"\n", out); |
48 | 92 | } |
44 | 93 | |
43 | 94 | if (send(s, out, strlen(out), 0) != strlen(out)) { |
95 | syslog(LOG_NOTICE, "srv_send failed"); | |
96 | return -1; | |
97 | } | |
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98 | |
43 | 99 | if (send(s, (char *)"\r\n", 2, 0) != 2) { |
100 | syslog(LOG_NOTICE, "srv_send failed"); | |
101 | return -1; | |
102 | } | |
103 | ||
104 | return 0; | |
105 | } | |
106 | ||
107 | ||
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108 | |
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109 | int unit_add(char *buf) |
43 | 110 | { |
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111 | units_list *unit, *tmp; |
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112 | uuid_t uu; |
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113 | char *cmd, *opt; |
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114 | int id = 1; |
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115 | |
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116 | cmd = strtok(buf, " \0"); |
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117 | opt = strtok(NULL, "\0"); |
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118 | if (opt == NULL) { |
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119 | srv_send((char *)"501 Parameter missing"); |
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120 | return 1; |
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121 | } |
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122 | |
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123 | if (debug) |
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124 | fprintf(stdout, "cmd: '%s' opt: '%s'\n", MBSE_SS(cmd), MBSE_SS(opt)); |
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125 | |
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126 | unit = (units_list *)malloc(sizeof(units_list)); |
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127 | unit->next = NULL; |
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128 | unit->uuid = malloc(37); |
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129 | uuid_generate(uu); |
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130 | uuid_unparse(uu, unit->uuid); |
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131 | unit->name = xstrcpy(opt); |
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132 | unit->air_address = unit->beer_address = unit->io1_address = unit->io2_address = unit->profile = NULL; |
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133 | unit->volume = 0.0; |
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134 | unit->heater_available = unit->cooler_available = unit->fan_available = FALSE; |
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135 | unit->air_temp = unit->beer_temp = unit->beer_set = unit->fridge_set = 20.0; |
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136 | unit->heater_state = unit->cooler_state = unit->fan_state = unit->door_state = unit->mode = 0; |
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137 | unit->temp_set_min = 1.0; |
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138 | unit->temp_set_max = 30.0; |
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139 | unit->idle_rangeH = 1.0; |
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140 | unit->idle_rangeL = -1.0; |
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141 | unit->prof_started = (time_t)0; |
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142 | |
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143 | if (Config.units == NULL) { |
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144 | Config.units = unit; |
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145 | } else { |
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146 | for (tmp = Config.units; tmp; tmp = tmp->next) { |
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147 | id++; |
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148 | if (tmp->next == NULL) { |
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149 | tmp->next = unit; |
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150 | break; |
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151 | } |
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152 | } |
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153 | } |
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154 | |
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155 | syslog(LOG_NOTICE, "Unit %d with uuid %s added", id, unit->uuid); |
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156 | srv_send((char *)"211 Unit %d with uuid %s added", id, unit->uuid); |
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157 | current_unit = id; |
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158 | return 0; |
43 | 159 | } |
160 | ||
161 | ||
162 | ||
81 | 163 | /* |
164 | * LIST | |
165 | */ | |
166 | int cmd_list(char *buf) | |
167 | { | |
168 | char *cmd, *opt; | |
169 | units_list *unit; | |
170 | int i; | |
171 | ||
172 | cmd = strtok(buf, " \0"); | |
173 | opt = strtok(NULL, " \0"); | |
174 | if (opt == NULL) { | |
175 | srv_send((char *)"212 Fermenter list follows:"); | |
176 | i = 0; | |
177 | for (unit = Config.units; unit; unit = unit->next) { | |
178 | i++; | |
179 | srv_send((char *)"%02d %s %-20s %-7s", i, unit->uuid, unit->name, UNITMODE[unit->mode]); | |
180 | } | |
181 | srv_send((char *)"."); | |
182 | return 0; | |
183 | } | |
184 | ||
185 | return 0; | |
186 | } | |
187 | ||
188 | ||
189 | ||
43 | 190 | void cmd_server(void) |
191 | { | |
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192 | char *inp, *p, *q, buf[SS_BUFSIZE], obuf[SS_BUFSIZE]; |
48 | 193 | int i, rc, rlen; |
43 | 194 | socklen_t fromlen; |
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195 | float newtemp; |
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196 | #ifdef HAVE_WIRINGPI_H |
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197 | int j; |
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198 | #endif |
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199 | |
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200 | // if (debug) { |
52 | 201 | // char *hostname = inet_ntoa(peeraddr_in.sin_addr); |
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202 | // syslog(LOG_NOTICE, "Start new client connection from %s port %u", hostname, ntohs(peeraddr_in.sin_port)); |
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203 | // fprintf(stdout, "Start new client connection from %s port %u\n", hostname, ntohs(peeraddr_in.sin_port)); |
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204 | // } |
43 | 205 | |
48 | 206 | memset((char *)&buf, 0, SS_BUFSIZE); |
207 | fromlen = sizeof(peeraddr_in); | |
208 | rlen = recvfrom(s, buf, sizeof(buf) -1, 0, (struct sockaddr *)&peeraddr_in, &fromlen); | |
209 | if (rlen == -1) { | |
210 | syslog(LOG_NOTICE, "recvfrom(): %s", strerror(errno)); | |
211 | } else { | |
212 | for (i = 0; i < strlen(buf); i++) { | |
213 | if (buf[i] == '\n') | |
214 | buf[i] = '\0'; | |
215 | if (buf[i] == '\r') | |
216 | buf[i] = '\0'; | |
217 | } | |
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218 | for (i = strlen(buf) -1; i > 0; i--) { |
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219 | if (buf[i] == ' ') |
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220 | buf[i] = '\0'; |
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221 | else |
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222 | break; |
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223 | } |
48 | 224 | if (strlen(buf)) { |
225 | if (debug) { | |
226 | syslog(LOG_NOTICE, "recv: \"%s\"", buf); | |
227 | fprintf(stdout, "recv: \"%s\"\n", buf); | |
43 | 228 | } |
229 | ||
230 | /* | |
48 | 231 | * Process commands from the client |
43 | 232 | */ |
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233 | if (strncmp(buf, "ADD", 3) == 0) { |
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234 | unit_add(buf); |
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235 | } else if (strncmp(buf, "HELP", 4) == 0) { |
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236 | srv_send((char *)"100 Help text follows"); |
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237 | srv_send((char *)"Recognized commands:"); |
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238 | srv_send((char *)""); |
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239 | srv_send((char *)"ADD name Add a new unit with \"name\""); |
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240 | srv_send((char *)"LCD Get LCD screen (allways 4 rows of 20 characters)"); |
81 | 241 | srv_send((char *)"LIST List all fermenter units"); |
242 | // srv_send((char *)"LIST BUS List 1-wire bus"); | |
243 | // srv_send((char *)"LIST PROFILES List available profiles"); | |
244 | // srv_send((char *)"LIST UNIT List fermenter unit"); | |
245 | // srv_send((char *)"MODE off|none|beer|fridge|profile"); | |
246 | // srv_send((char *)"PROFILE Profile status"); | |
247 | // srv_send((char *)"PROFILE start|stop|pause Profile start, stop or pause"); | |
248 | // srv_send((char *)"SET BEER Set beer temperature"); | |
249 | // srv_send((char *)"SET FRIDGE Set fridge temperature"); | |
250 | // srv_send((char *)"SET IDLE LOW val Set idle temperature low"); | |
251 | // srv_send((char *)"SET IDLE HIGH val Set idle temperature high"); | |
252 | // srv_send((char *)"SET NAME name Set name or beername for the unit"); | |
253 | // srv_send((char *)"SET OFF Set unit off"); | |
254 | // srv_send((char *)"SET PROFILE name Set named profile"); | |
255 | // srv_send((char *)"SET TEMP MIN val Set unit minimum temperature"); | |
256 | // srv_send((char *)"SET TEMP MAX val Set unit maximum temperature"); | |
257 | // srv_send((char *)"SET VOLUME Set unit volume"); | |
258 | // srv_send((char *)"UNIT n|uuid Select unit by number or uuid"); | |
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259 | srv_send((char *)"."); |
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260 | } else if (strncmp(buf, "LCD", 3) == 0) { |
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261 | #ifdef HAVE_WIRINGPI_H |
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262 | srv_send((char *)"201 information follows"); |
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263 | for (j = 0; j < 4; j++) { |
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264 | sprintf(obuf, " "); |
70 | 265 | obuf[20] = '\0'; |
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266 | for (i = 0; i < 20; i++) |
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267 | obuf[i] = lcdbuf[lcdHandle][i][j]; |
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268 | srv_send(obuf); |
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269 | } |
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270 | srv_send((char *)"."); |
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271 | #else |
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272 | srv_send((char *)"403 LCD not available"); |
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273 | #endif |
81 | 274 | } else if (strncmp(buf, "LIST", 4) == 0) { |
275 | cmd_list(buf); | |
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276 | } else if (strncmp(buf, "ack", 3) == 0) { |
48 | 277 | srv_send((char *)"ack"); |
278 | } else if (strncmp(buf, "lcd", 3) == 0) { | |
279 | sprintf(obuf, "[\" \", \" \", \" \", \" \"]"); | |
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280 | #ifdef HAVE_WIRINGPI_H |
48 | 281 | for (i = 0; i < 20; i++) { |
282 | obuf[i+2] = lcdbuf[lcdHandle][i][0]; | |
283 | obuf[i+26] = lcdbuf[lcdHandle][i][1]; | |
284 | obuf[i+50] = lcdbuf[lcdHandle][i][2]; | |
285 | obuf[i+74] = lcdbuf[lcdHandle][i][3]; | |
286 | } | |
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287 | #endif |
48 | 288 | srv_send(obuf); |
289 | } else if (strncmp(buf, "getMode", 7) == 0) { | |
53 | 290 | srv_send("%c", Config.cs_mode); |
48 | 291 | } else if (strncmp(buf, "getFridge", 9) == 0) { |
53 | 292 | srv_send("%.1f", Config.cs_fridgeSet); |
48 | 293 | } else if (strncmp(buf, "getBeer", 7) == 0) { |
53 | 294 | srv_send("%.1f", Config.cs_beerSet); |
48 | 295 | } else if (strncmp(buf, "getControlConstants", 19) == 0) { |
296 | srv_send("{ \"tempFormat\":\"%c\", \"tempSetMin\":%.1f, \"tempSetMax\":%.1f, \"idleRangeH\":%.3f, \"idleRangeL\":%.3f }", | |
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297 | Config.tempFormat, Config.cc_tempSetMin, Config.cc_tempSetMax, Config.cc_idleRangeH, Config.cc_idleRangeL ); |
48 | 298 | } else if (strncmp(buf, "getControlSettings", 18) == 0) { |
299 | srv_send("{ \"mode\":\"%c\", \"beerSet\":%.1f, \"fridgeSet\":%.1f, \"heatEstimator\":%.1f, \"coolEstimator\":%.1f }", | |
53 | 300 | Config.cs_mode, Config.cs_beerSet, Config.cs_fridgeSet, Config.cs_heatEstimator, Config.cs_coolEstimator); |
48 | 301 | } else if (strncmp(buf, "getControlVariables", 19) == 0) { |
302 | srv_send("{ \"beerDiff\":%.2f }", cv_beerDiff); | |
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303 | } else if (strncmp(buf, "loadDefaultControlSettings", 26) == 0) { |
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304 | defaultControlSettings(); |
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305 | srv_send("ack"); |
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306 | } else if (strncmp(buf, "loadDefaultControlConstants", 27) == 0) { |
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307 | defaultControlConstants(); |
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308 | srv_send("ack"); |
48 | 309 | } else if (strncmp(buf, "setBeer=", 8) == 0) { |
310 | inp = xstrcpy(buf+8); | |
311 | rc = sscanf(inp, "%f", &newtemp); | |
312 | if (debug) | |
313 | fprintf(stdout, "new temp from %s, %.1f, rc=%d\n", inp, newtemp, rc); | |
314 | if (rc == 1) { | |
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315 | if ((Config.cc_tempSetMin <= newtemp) && (newtemp <= Config.cc_tempSetMax)) { |
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316 | syslog(LOG_NOTICE, "Beer temperature set to %.1f degrees in web interface", newtemp); |
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317 | srv_send("ack"); |
53 | 318 | Config.cs_mode = 'b'; |
319 | Config.cs_beerSet = newtemp; | |
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320 | } else { |
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321 | 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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322 | srv_send("err"); |
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323 | } |
48 | 324 | } else { |
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325 | syslog(LOG_NOTICE, "Cannot convert temperature '%s' to float", inp); |
48 | 326 | srv_send("err"); |
327 | } | |
328 | free(inp); | |
329 | } else if (strncmp(buf, "setFridge=", 10) == 0) { | |
330 | inp = xstrcpy(buf+10); | |
331 | rc = sscanf(inp, "%f", &newtemp); | |
332 | if (debug) | |
333 | fprintf(stdout, "new temp from %s, %.1f, rc=%d\n", inp, newtemp, rc); | |
334 | if (rc == 1) { | |
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335 | if ((Config.cc_tempSetMin <= newtemp) && (newtemp <= Config.cc_tempSetMax)) { |
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336 | syslog(LOG_NOTICE, "Fridge temperature set to %.1f degrees in web interface", newtemp); |
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337 | srv_send("ack"); |
53 | 338 | Config.cs_mode = 'f'; |
339 | Config.cs_fridgeSet = newtemp; | |
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340 | } else { |
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341 | 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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342 | srv_send("err"); |
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343 | } |
48 | 344 | } else { |
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345 | syslog(LOG_NOTICE, "Cannot convert temperature '%s' to float", inp); |
48 | 346 | srv_send("err"); |
347 | } | |
348 | free(inp); | |
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349 | } else if (strncmp(buf, "setOff", 6) == 0) { |
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350 | if (debug) |
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351 | fprintf(stdout, "temperature control disabled\n"); |
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352 | syslog(LOG_NOTICE, "Notification: Temperature control disabled"); |
53 | 353 | Config.cs_mode = 'o'; |
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354 | srv_send("ack"); |
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355 | } else if (strncmp(buf, "setParameters=", 14) == 0) { |
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356 | inp = xstrcpy(buf+14); /* {"tempSetMax":30.5} */ |
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357 | if (debug) |
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358 | fprintf(stdout, "setParameters: %s\n", inp); |
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359 | strtok(inp, (char *)"\""); |
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360 | p = strtok(NULL, (char *)"\""); |
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361 | q = strtok(NULL, (char *)":,}"); |
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362 | if (strcmp(p, (char *)"tempSetMin") == 0) { |
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363 | rc = sscanf(q, "%f", &newtemp); |
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364 | if (rc == 1) { |
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365 | syslog(LOG_NOTICE, "cc_tempSetMin = %1.f", newtemp); |
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366 | Config.cc_tempSetMin = newtemp; |
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367 | srv_send("ack"); |
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368 | } else { |
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369 | srv_send("ERR"); |
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370 | } |
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371 | } else if (strcmp(p, (char *)"tempSetMax") == 0) { |
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372 | rc = sscanf(q, "%f", &newtemp); |
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373 | if (rc == 1) { |
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374 | syslog(LOG_NOTICE, "cc_tempSetMax = %1.f", newtemp); |
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375 | Config.cc_tempSetMax = newtemp; |
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376 | srv_send("ack"); |
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377 | } else { |
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378 | srv_send("ERR"); |
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379 | } |
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380 | } else { |
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381 | fprintf(stdout, "p='%s' q='%s' inp='%s'\n", p, q, inp); |
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382 | srv_send("ERR"); |
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383 | } |
62 | 384 | free(inp); |
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385 | // stopScript |
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386 | // quit |
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387 | // eraseLogs |
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388 | // interval |
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389 | // startNewBrew |
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390 | // pauseLogging |
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391 | // stopLogging |
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392 | // resumeLogging |
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393 | // dateTimeFormatDisplay |
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394 | } else if (strncmp(buf, "setActiveProfile", 16) == 0) { |
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395 | syslog(LOG_NOTICE, "Setting profile '%s' as active profile", "undefined"); |
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396 | // programArduino |
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397 | // refreshDeviceList |
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398 | // getDeviceList |
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399 | // applyDevice |
43 | 400 | } else { |
48 | 401 | if (debug) |
402 | fprintf(stdout, "unknown command \"%s\"\n", buf); | |
403 | srv_send((char *)"ERR"); | |
43 | 404 | } |
405 | } | |
42
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406 | } |
44 | 407 | |
51
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408 | // if (debug) { |
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409 | // syslog(LOG_NOTICE, "End connection from %s port %u", hostname, ntohs(peeraddr_in.sin_port)); |
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410 | // fprintf(stdout, "End connection from %s port %u\n", hostname, ntohs(peeraddr_in.sin_port)); |
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411 | // } |
48 | 412 | |
44 | 413 | close(s); |
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414 | } |
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415 | |
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416 | |
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417 | #ifdef HAVE_WIRINGPI_H |
43 | 418 | PI_THREAD (my_server_loop) |
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419 | #else |
74 | 420 | void *my_server_loop(void *threadid) |
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421 | #endif |
43 | 422 | { |
423 | socklen_t addrlen; | |
44 | 424 | int optval = 1; |
43 | 425 | |
426 | syslog(LOG_NOTICE, "Thread my_server_loop started"); | |
427 | if (debug) | |
428 | fprintf(stdout, "Thread my_server_loop started\n"); | |
429 | ||
44 | 430 | memset((char *)&myaddr_in, 0, sizeof(struct sockaddr_in)); |
431 | memset((char *)&peeraddr_in, 0, sizeof(struct sockaddr_in)); | |
432 | myaddr_in.sin_family = AF_INET; | |
433 | myaddr_in.sin_addr.s_addr = INADDR_ANY; | |
434 | myaddr_in.sin_port = htons(Config.my_port); | |
435 | ||
436 | ls = socket(AF_INET, SOCK_STREAM, 0); | |
437 | if (ls == -1) { | |
438 | syslog(LOG_NOTICE, "Can't create listen socket: %s", strerror(errno)); | |
439 | fprintf(stderr, "Can't create listen socket: %s\n", strerror(errno)); | |
440 | return 0; | |
441 | } | |
442 | ||
443 | if (setsockopt(ls, SOL_SOCKET, SO_KEEPALIVE, &optval, sizeof(optval)) == -1) { | |
444 | syslog(LOG_NOTICE, "Can't setsockopt SO_KEEPALIVE socket: %s", strerror(errno)); | |
445 | close(ls); | |
446 | return 0; | |
447 | } | |
448 | ||
449 | if (setsockopt(ls, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)) == -1) { | |
450 | syslog(LOG_NOTICE, "Can't setsockopt SO_REUSEADDR socket: %s", strerror(errno)); | |
451 | close(ls); | |
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452 | return 0; |
44 | 453 | } |
454 | ||
455 | if (bind(ls, (struct sockaddr *)&myaddr_in, sizeof(struct sockaddr_in)) == -1) { | |
456 | syslog(LOG_NOTICE, "Can't bind to listen socket: %s", strerror(errno)); | |
457 | close(ls); | |
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458 | return 0; |
44 | 459 | } |
460 | ||
461 | if (listen(ls, 5) == -1) { | |
462 | syslog(LOG_NOTICE, "Can't listen on listen socket: %s", strerror(errno)); | |
463 | close(ls); | |
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464 | return 0; |
44 | 465 | } |
466 | ||
467 | syslog(LOG_NOTICE, "listen socket created %d", ls); | |
468 | if (debug) | |
469 | fprintf(stdout, "listen socket created %d\n", ls); | |
470 | ||
471 | ||
43 | 472 | /* |
473 | * Loop forever until the external shutdown variable is set. | |
474 | */ | |
475 | for (;;) { | |
476 | ||
477 | addrlen = sizeof(struct sockaddr_in); | |
478 | /* | |
479 | * This call will block until a new connection | |
480 | * arrives. Then it will return the address of | |
481 | * the connecting peer, and a new socket | |
482 | * descriptor, s, for that connection. | |
483 | */ | |
484 | s = accept(ls, (struct sockaddr *)&peeraddr_in, &addrlen); | |
485 | if (s == -1) { | |
486 | syslog(LOG_NOTICE, "my_server_loop accept failed %s", strerror(errno)); | |
487 | if (debug) | |
488 | fprintf(stdout, "my_server_loop accept failed %s\n", strerror(errno)); | |
44 | 489 | return 0; |
43 | 490 | } |
491 | ||
48 | 492 | cmd_server(); |
43 | 493 | |
494 | if (my_shutdown) { | |
495 | syslog(LOG_NOTICE, "Thread my_server_loop stopped"); | |
496 | if (debug) | |
497 | fprintf(stdout, "Thread my_server_loop stopped\n"); | |
498 | return 0; | |
499 | } | |
500 | ||
501 | } | |
502 | } | |
503 | ||
504 |