vcs.maemo.org Git - monky/blob - src/weather.c

   1 /* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
   2  *
   3  * Conky, a system monitor, based on torsmo
   4  *
   5  * Please see COPYING for details
   6  *
   7  * Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
   8  *      (see AUTHORS)
   9  * All rights reserved.
  10  *
  11  * This program is free software: you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation, either version 3 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22  *
  23  * vim: ts=4 sw=4 noet ai cindent syntax=c
  24  *
  25  */
  26
  27 #include "conky.h"
  28 #include "logging.h"
  29 #include "weather.h"
  30 #include "temphelper.h"
  31 #include "ccurl_thread.h"
  32 #include <time.h>
  33 #include <ctype.h>
  34 #ifdef MATH
  35 #include <math.h>
  36 #endif /* MATH */
  37 #ifdef XOAP
  38 #include <libxml/parser.h>
  39 #include <libxml/xpath.h>
  40
  41 /* Xpath expressions for XOAP xml parsing */
  42 #define NUM_XPATH_EXPRESSIONS_CC 8
  43 const char *xpath_expression_cc[NUM_XPATH_EXPRESSIONS_CC] = {
  44         "/weather/cc/lsup", "/weather/cc/tmp", "/weather/cc/t",
  45         "/weather/cc/bar/r", "/weather/cc/wind/s", "/weather/cc/wind/d",
  46         "/weather/cc/hmid", "/weather/cc/icon"
  47 };
  48
  49 #define NUM_XPATH_EXPRESSIONS_DF 8
  50 const char *xpath_expression_df[NUM_XPATH_EXPRESSIONS_DF] = {
  51         "/weather/dayf/day[*]/hi", "/weather/dayf/day[*]/low",
  52         "/weather/dayf/day[*]/part[1]/icon", "/weather/dayf/day[*]/part[1]/t",
  53         "/weather/dayf/day[*]/part[1]/wind/s","/weather/dayf/day[*]/part[1]/wind/d",
  54         "/weather/dayf/day[*]/part[1]/ppcp", "/weather/dayf/day[*]/part[1]/hmid"
  55 };
  56 #endif /* XOAP */
  57
  58 /* Possible sky conditions */
  59 #define NUM_CC_CODES 6
  60 const char *CC_CODES[NUM_CC_CODES] = {
  61         "SKC", "CLR", "FEW", "SCT", "BKN", "OVC"
  62 };
  63
  64 /* Possible weather modifiers */
  65 #define NUM_WM_CODES 9
  66 const char *WM_CODES[NUM_WM_CODES] = {
  67         "VC", "MI", "BC", "PR", "TS", "BL",
  68         "SH", "DR", "FZ"
  69 };
  70
  71 /* Possible weather conditions */
  72 #define NUM_WC_CODES 17
  73 const char *WC_CODES[NUM_WC_CODES] = {
  74         "DZ", "RA", "GR", "GS", "SN", "SG",
  75         "FG", "HZ", "FU", "BR", "DU", "SA",
  76         "FC", "PO", "SQ", "SS", "DS"
  77 };
  78
  79 static ccurl_location_t *locations_head_cc = 0;
  80 #ifdef XOAP
  81 static ccurl_location_t *locations_head_df = 0;
  82 #endif
  83
  84 void weather_free_info(void)
  85 {
  86         ccurl_free_locations(&locations_head_cc);
  87 #ifdef XOAP
  88         ccurl_free_locations(&locations_head_df);
  89 #endif
  90 }
  91
  92 int rel_humidity(int dew_point, int air) {
  93         const float a = 17.27f;
  94         const float b = 237.7f;
  95
  96         float diff = a*(dew_point/(b+dew_point)-air/(b+air));
  97 #ifdef MATH
  98         return (int)(100.f*expf(diff));
  99 #else
 100         return (int)(16.666667163372f*(6.f+diff*(6.f+diff*(3.f+diff))));
 101 #endif /* MATH */
 102 }
 103
 104 #ifdef XOAP
 105 static void parse_df(PWEATHER_FORECAST *res, xmlXPathContextPtr xpathCtx)
 106 {
 107         int i, j, k;
 108         char *content;
 109         xmlXPathObjectPtr xpathObj;
 110
 111         for (i = 0; i < NUM_XPATH_EXPRESSIONS_DF; i++) {
 112                 xpathObj = xmlXPathEvalExpression((const xmlChar *)xpath_expression_df[i], xpathCtx);
 113                 if (xpathObj != NULL) {
 114                         xmlNodeSetPtr nodes = xpathObj->nodesetval;
 115                         k = 0;
 116                         for (j = 0; j < nodes->nodeNr; ++j) {
 117                                 if (nodes->nodeTab[j]->type == XML_ELEMENT_NODE) {
 118                                         content = (char *)xmlNodeGetContent(nodes->nodeTab[k]);
 119                                         switch(i) {
 120                                         case 0:
 121                                                 res->hi[k] = atoi(content);
 122                                                 break;
 123                                         case 1:
 124                                                 res->low[k] = atoi(content);
 125                                                 break;
 126                                         case 2:
 127                                                 strncpy(res->icon[k], content, 2);
 128                                         case 3:
 129                                                 strncpy(res->xoap_t[k], content, 31);
 130                                                 break;
 131                                         case 4:
 132                                                 res->wind_s[k] = atoi(content);
 133                                                 break;
 134                                         case 5:
 135                                                 res->wind_d[k] = atoi(content);
 136                                                 break;
 137                                         case 6:
 138                                                 res->ppcp[k] = atoi(content);
 139                                                 break;
 140                                         case 7:
 141                                                 res->hmid[k] = atoi(content);
 142                                         }
 143                                         xmlFree(content);
 144                                         if (++k == FORECAST_DAYS) break;
 145                                 }
 146                         }
 147                         xmlXPathFreeObject(xpathObj);
 148                 }
 149         }
 150         return;
 151 }
 152
 153 static void parse_weather_forecast_xml(PWEATHER_FORECAST *res, const char *data)
 154 {
 155         xmlDocPtr doc;
 156         xmlXPathContextPtr xpathCtx;
 157
 158         if (!(doc = xmlReadMemory(data, strlen(data), "", NULL, 0))) {
 159                 NORM_ERR("weather_forecast: can't read xml data");
 160                 return;
 161         }
 162
 163         xpathCtx = xmlXPathNewContext(doc);
 164         if(xpathCtx == NULL) {
 165                 NORM_ERR("weather_forecast: unable to create new XPath context");
 166                 xmlFreeDoc(doc);
 167                 return;
 168         }
 169
 170         parse_df(res, xpathCtx);
 171         xmlXPathFreeContext(xpathCtx);
 172         xmlFreeDoc(doc);
 173         return;
 174 }
 175
 176 static void parse_cc(PWEATHER *res, xmlXPathContextPtr xpathCtx)
 177 {
 178         int i;
 179         char *content;
 180         xmlXPathObjectPtr xpathObj;
 181
 182         xpathObj = xmlXPathEvalExpression((const xmlChar *)"/error/err", xpathCtx);
 183         if (xpathObj && xpathObj->nodesetval && xpathObj->nodesetval->nodeNr > 0 &&
 184                         xpathObj->nodesetval->nodeTab[0]->type == XML_ELEMENT_NODE) {
 185                 content = (char *)xmlNodeGetContent(xpathObj->nodesetval->nodeTab[0]);
 186                 NORM_ERR("XOAP error: %s", content);
 187                 xmlFree(content);
 188                 xmlXPathFreeObject(xpathObj);
 189                 return;
 190         }
 191         xmlXPathFreeObject(xpathObj);
 192
 193         for (i = 0; i < NUM_XPATH_EXPRESSIONS_CC; i++) {
 194                 xpathObj = xmlXPathEvalExpression((const xmlChar *)xpath_expression_cc[i], xpathCtx);
 195                 if (xpathObj && xpathObj->nodesetval && xpathObj->nodesetval->nodeNr >0 &&
 196                                 xpathObj->nodesetval->nodeTab[0]->type ==
 197                                 XML_ELEMENT_NODE) {
 198                         content = (char *)xmlNodeGetContent(xpathObj->nodesetval->nodeTab[0]);
 199                         switch(i) {
 200                                 case 0:
 201                                         strncpy(res->lastupd, content, 31);
 202                                         break;
 203                                 case 1:
 204                                         res->temp = atoi(content);
 205                                         break;
 206                                 case 2:
 207                                         strncpy(res->xoap_t, content, 31);
 208                                         break;
 209                                 case 3:
 210                                         res->bar = atoi(content);
 211                                         break;
 212                                 case 4:
 213                                         res->wind_s = atoi(content);
 214                                         break;
 215                                 case 5:
 216                                         res->wind_d = atoi(content);
 217                                         break;
 218                                 case 6:
 219                                         res->hmid = atoi(content);
 220                                         break;
 221                                 case 7:
 222                                         strncpy(res->icon, content, 2);
 223                         }
 224                         xmlFree(content);
 225                 }
 226                 xmlXPathFreeObject(xpathObj);
 227         }
 228         return;
 229 }
 230
 231 static void parse_weather_xml(PWEATHER *res, const char *data)
 232 {
 233         xmlDocPtr doc;
 234         xmlXPathContextPtr xpathCtx;
 235
 236         if (!(doc = xmlReadMemory(data, strlen(data), "", NULL, 0))) {
 237                 NORM_ERR("weather: can't read xml data");
 238                 return;
 239         }
 240
 241         xpathCtx = xmlXPathNewContext(doc);
 242         if(xpathCtx == NULL) {
 243                 NORM_ERR("weather: unable to create new XPath context");
 244                 xmlFreeDoc(doc);
 245                 return;
 246         }
 247
 248         parse_cc(res, xpathCtx);
 249         xmlXPathFreeContext(xpathCtx);
 250         xmlFreeDoc(doc);
 251         return;
 252 }
 253 #endif /* XOAP */
 254
 255 /*
 256  * Horrible hack to avoid using regexes
 257  *
 258  */
 259
 260 static inline void parse_token(PWEATHER *res, char *token) {
 261
 262         int i;
 263         char s_tmp[64];
 264
 265         switch (strlen(token)) {
 266
 267                 //Check all tokens 2 chars long
 268                 case 2:
 269
 270                         //Check if token is a weather condition
 271                         for (i=0; i<2; i++) {
 272                                 if (!isalpha(token[i])) break;
 273                         }
 274                         if (i==2) {
 275                                 for(i=0; i<NUM_WC_CODES; i++) {
 276                                         if (!strncmp(token, WC_CODES[i], 2)) {
 277                                                 res->wc=i+1;
 278                                                 break;
 279                                         }
 280                                 }
 281                                 return;
 282                         }
 283
 284                         //Check for CB
 285                         if (!strcmp(token, "CB")) {
 286                                 res->cc = 8;
 287                                 return;
 288                         }
 289
 290                         break;
 291
 292                         //Check all tokens 3 chars long
 293                 case 3:
 294
 295                         //Check if token is a modified weather condition
 296                         if ((token[0] == '+') || (token[0] == '-')) {
 297                                 for (i=1; i<3; i++) {
 298                                         if (!isalpha(token[i])) break;
 299                                 }
 300                                 if (i==3) {
 301                                         for(i=0; i<NUM_WC_CODES; i++) {
 302                                                 if (!strncmp(&token[1], WC_CODES[i], 2)) {
 303                                                         res->wc=i+1;
 304                                                         break;
 305                                                 }
 306                                         }
 307                                         return;
 308                                 }
 309                         }
 310
 311                         //Check for NCD or NSC
 312                         if ((!strcmp(token, "NCD")) || (!strcmp(token, "NSC"))) {
 313                                 res->cc = 1;
 314                                 return;
 315                         }
 316
 317                         //Check for TCU
 318                         if (!strcmp(token, "TCU")) {
 319                                 res->cc = 7;
 320                                 return;
 321                         }
 322
 323                         break;
 324
 325                         //Check all tokens 4 chars long
 326                 case 4:
 327
 328                         //Check if token is a modified weather condition
 329                         for(i=0; i<NUM_WM_CODES; i++) {
 330                                 if (!strncmp(token, WM_CODES[i], 2)) {
 331                                         for(i=0; i<NUM_WC_CODES; i++) {
 332                                                 if (!strncmp(&token[2], WC_CODES[i], 2)) {
 333                                                         res->wc=i+1;
 334                                                         return;
 335                                                 }
 336                                         }
 337                                         break;
 338                                 }
 339                         }
 340
 341                         break;
 342
 343                         //Check all tokens 5 chars long
 344                 case 5:
 345
 346                         //Check for CAVOK
 347                         if (!strcmp(token, "CAVOK")) {
 348                                 res->cc = 1;
 349                                 return;
 350                         }
 351
 352                         //Check if token is the temperature
 353                         for (i=0; i<2; i++) {
 354                                 if (!isdigit(token[i])) break;
 355                         }
 356                         if ((i==2) && (token[2] == '/')) {
 357                                 for (i=3; i<5; i++) {
 358                                         if (!isdigit(token[i])) break;
 359                                 }
 360                                 if (i==5) {
 361                                         //First 2 digits gives the air temperature
 362                                         res->temp=atoi(token);
 363
 364                                         //4th and 5th digits gives the dew point temperature
 365                                         res->dew=atoi(&token[3]);
 366
 367                                         //Compute humidity
 368                                         res->hmid = rel_humidity(res->dew, res->temp);
 369
 370                                         return;
 371                                 }
 372                         }
 373
 374                         //Check if token is the pressure
 375                         if ((token[0] == 'Q') || (token[0] == 'A')) {
 376                                 for (i=1; i<5; i++) {
 377                                         if (!isdigit(token[i])) break;
 378                                 }
 379                                 if (i==5) {
 380                                         if (token[0] == 'A') {
 381                                                 //Convert inches of mercury to mbar
 382                                                 res->bar = (int)(atoi(&token[1])*0.338637526f);
 383                                                 return;
 384                                         }
 385
 386                                         //Last 4 digits is pressure im mbar
 387                                         res->bar = atoi(&token[1]);
 388                                         return;
 389                                 }
 390                         }
 391
 392                         //Check if token is a modified weather condition
 393                         if ((token[0] == '+') || (token[0] == '-')) {
 394                                 for(i=0; i<NUM_WM_CODES; i++) {
 395                                         if (!strncmp(&token[1], WM_CODES[i], 2)) {
 396                                                 for(i=0; i<NUM_WC_CODES; i++) {
 397                                                         if (!strncmp(&token[3], WC_CODES[i], 2)) {
 398                                                                 res->wc=i+1;
 399                                                                 return;
 400                                                         }
 401                                                 }
 402                                                 break;
 403                                         }
 404                                 }
 405                         }
 406                         break;
 407
 408                         //Check all tokens 6 chars long
 409                 case 6:
 410
 411                         //Check if token is the cloud cover
 412                         for (i=0; i<3; i++) {
 413                                 if (!isalpha(token[i])) break;
 414                         }
 415                         if (i==3) {
 416                                 for (i=3; i<6; i++) {
 417                                         if (!isdigit(token[i])) break;
 418                                 }
 419                                 if (i==6) {
 420                                         //Check if first 3 digits gives the cloud cover condition
 421                                         for(i=0; i<NUM_CC_CODES; i++) {
 422                                                 if (!strncmp(token, CC_CODES[i], 3)) {
 423                                                         res->cc=i+1;
 424                                                         break;
 425                                                 }
 426                                         }
 427                                         return;
 428                                 }
 429                         }
 430
 431                         //Check if token is positive temp and negative dew
 432                         for (i=0; i<2; i++) {
 433                                 if (!isdigit(token[i])) break;
 434                         }
 435                         if ((i==2) && (token[2] == '/')  && (token[3] == 'M')) {
 436                                 for (i=4; i<6; i++) {
 437                                         if (!isdigit(token[i])) break;
 438                                 }
 439                                 if (i==6) {
 440                                         //1st and 2nd digits gives the temperature
 441                                         res->temp = atoi(token);
 442
 443                                         //5th and 6th digits gives the dew point temperature
 444                                         res->dew = -atoi(&token[4]);
 445
 446                                         //Compute humidity
 447                                         res->hmid = rel_humidity(res->dew, res->temp);
 448
 449                                         return;
 450                                 }
 451                         }
 452
 453                         break;
 454
 455                         //Check all tokens 7 chars long
 456                 case 7:
 457
 458                         //Check if token is the observation time
 459                         for (i=0; i<6; i++) {
 460                                 if (!isdigit(token[i])) break;
 461                         }
 462                         if ((i==6) && (token[6] == 'Z')) return;
 463
 464                         //Check if token is the wind speed/direction in knots
 465                         for (i=0; i<5; i++) {
 466                                 if (!isdigit(token[i])) break;
 467                         }
 468                         if ((i==5) && (token[5] == 'K') &&  (token[6] == 'T')) {
 469
 470                                 //First 3 digits are wind direction
 471                                 strncpy(s_tmp, token, 3);
 472                                 s_tmp[3]='\0';
 473                                 res->wind_d=atoi(s_tmp);
 474
 475                                 //4th and 5th digit are wind speed in knots (convert to km/hr)
 476                                 res->wind_s = (int)(atoi(&token[3])*1.852);
 477
 478                                 return;
 479                         }
 480
 481                         //Check if token is negative temperature
 482                         if ((token[0] == 'M') && (token[4] == 'M')) {
 483                                 for (i=1; i<3; i++) {
 484                                         if (!isdigit(token[i])) break;
 485                                 }
 486                                 if ((i==3) && (token[3] == '/')) {
 487                                         for (i=5; i<7; i++) {
 488                                                 if (!isdigit(token[i])) break;
 489                                         }
 490                                         if (i==7) {
 491                                                 //2nd and 3rd digits gives the temperature
 492                                                 res->temp = -atoi(&token[1]);
 493
 494                                                 //6th and 7th digits gives the dew point temperature
 495                                                 res->dew = -atoi(&token[5]);
 496
 497                                                 //Compute humidity
 498                                                 res->hmid = rel_humidity(res->dew, res->temp);
 499
 500                                                 return;
 501                                         }
 502                                 }
 503                         }
 504
 505                         //Check if token is wind variability
 506                         for (i=0; i<3; i++) {
 507                                 if (!isdigit(token[i])) break;
 508                         }
 509                         if ((i==3) && (token[3] == 'V')) {
 510                                 for (i=4; i<7; i++) {
 511                                         if (!isdigit(token[i])) break;
 512                                 }
 513                                 if (i==7) return;
 514                         }
 515
 516                         break;
 517
 518                         //Check all tokens 8 chars long
 519                 case 8:
 520
 521                         //Check if token is the wind speed/direction in m/s
 522                         for (i=0; i<5; i++) {
 523                                 if (!isdigit(token[i])) break;
 524                         }
 525                         if ((i==5)&&(token[5] == 'M')&&(token[6] == 'P')&&(token[7] == 'S')) {
 526
 527                                 //First 3 digits are wind direction
 528                                 strncpy(s_tmp, token, 3);
 529                                 s_tmp[3]='\0';
 530                                 res->wind_d=atoi(s_tmp);
 531
 532                                 //4th and 5th digit are wind speed in m/s (convert to km/hr)
 533                                 res->wind_s = (int)(atoi(&token[3])*3.6);
 534
 535                                 return;
 536                         }
 537
 538                 default:
 539
 540                         //printf("token : %s\n", token);
 541                         break;
 542         }
 543 }
 544
 545 #ifdef XOAP
 546 void parse_weather_forecast(void *result, const char *data)
 547 {
 548         PWEATHER_FORECAST *res = (PWEATHER_FORECAST*)result;
 549         /* Reset results */
 550         memset(res, 0, sizeof(PWEATHER_FORECAST));
 551
 552         //Check if it is an xml file
 553         if ( strncmp(data, "<?xml ", 6) == 0 ) {
 554                 parse_weather_forecast_xml(res, data);
 555         }
 556 }
 557 #endif /* XOAP */
 558
 559 void parse_weather(void *result, const char *data)
 560 {
 561         PWEATHER *res = (PWEATHER*)result;
 562         /* Reset results */
 563         memset(res, 0, sizeof(PWEATHER));
 564
 565 #ifdef XOAP
 566         //Check if it is an xml file
 567         if ( strncmp(data, "<?xml ", 6) == 0 ) {
 568                 parse_weather_xml(res, data);
 569         } else
 570 #endif /* XOAP */
 571         {
 572                 //We assume its a text file
 573                 char s_tmp[256];
 574                 const char delim[] = " ";
 575
 576                 //Divide time stamp and metar data
 577                 if (sscanf(data, "%[^'\n']\n%[^'\n']", res->lastupd, s_tmp) == 2) {
 578
 579                         //Process all tokens
 580                         char *p_tok = NULL;
 581                         char *p_save = NULL;
 582
 583                         if ((strtok_r(s_tmp, delim, &p_save)) != NULL) {
 584
 585                                 //Jump first token, must be icao
 586                                 p_tok = strtok_r(NULL, delim, &p_save);
 587
 588                                 do {
 589
 590                                         parse_token(res, p_tok);
 591                                         p_tok = strtok_r(NULL, delim, &p_save);
 592
 593                                 } while (p_tok != NULL);
 594                         }
 595                         return;
 596                 }
 597                 else {
 598                         return;
 599                 }
 600         }
 601 }
 602
 603 void wind_deg_to_dir(char *p, int p_max_size, int wind_deg) {
 604         if ((wind_deg >= 349) || (wind_deg < 12)) {
 605                 strncpy(p, "N", p_max_size);
 606         } else if (wind_deg < 33) {
 607                 strncpy(p, "NNE", p_max_size);
 608         } else if (wind_deg < 57) {
 609                 strncpy(p, "NE", p_max_size);
 610         } else if (wind_deg < 79) {
 611                 strncpy(p, "ENE", p_max_size);
 612         } else if (wind_deg < 102) {
 613                 strncpy(p, "E", p_max_size);
 614         } else if (wind_deg < 124) {
 615                 strncpy(p, "ESE", p_max_size);
 616         } else if (wind_deg < 147) {
 617                 strncpy(p, "SE", p_max_size);
 618         } else if (wind_deg < 169) {
 619                 strncpy(p, "SSE", p_max_size);
 620         } else if (wind_deg < 192) {
 621                 strncpy(p, "S", p_max_size);
 622         } else if (wind_deg < 214) {
 623                 strncpy(p, "SSW", p_max_size);
 624         } else if (wind_deg < 237) {
 625                 strncpy(p, "SW", p_max_size);
 626         } else if (wind_deg < 259) {
 627                 strncpy(p, "WSW", p_max_size);
 628         } else if (wind_deg < 282) {
 629                         strncpy(p, "W", p_max_size);
 630         } else if (wind_deg < 304) {
 631                 strncpy(p, "WNW", p_max_size);
 632         } else if (wind_deg < 327) {
 633                 strncpy(p, "NW", p_max_size);
 634         } else if (wind_deg < 349) {
 635                 strncpy(p, "NNW", p_max_size);
 636         };
 637 }
 638
 639 #ifdef XOAP
 640 void weather_forecast_process_info(char *p, int p_max_size, char *uri, unsigned int day, char *data_type, int interval)
 641 {
 642         PWEATHER_FORECAST *data;
 643
 644         ccurl_location_t *curloc = ccurl_find_location(&locations_head_df, uri);
 645         if (!curloc->p_timed_thread) {
 646                 curloc->result = malloc(sizeof(PWEATHER_FORECAST));
 647                 memset(curloc->result, 0, sizeof(PWEATHER_FORECAST));
 648                 curloc->process_function = &parse_weather_forecast;
 649                 ccurl_init_thread(curloc, interval);
 650                 if (!curloc->p_timed_thread) {
 651                         NORM_ERR("error setting up weather_forecast thread");
 652                 }
 653         }
 654
 655         timed_thread_lock(curloc->p_timed_thread);
 656         data = (PWEATHER_FORECAST*)curloc->result;
 657         if (strcmp(data_type, "hi") == EQUAL) {
 658                 temp_print(p, p_max_size, data->hi[day], TEMP_CELSIUS);
 659         } else if (strcmp(data_type, "low") == EQUAL) {
 660                 temp_print(p, p_max_size, data->low[day], TEMP_CELSIUS);
 661         } else if (strcmp(data_type, "icon") == EQUAL) {
 662                 strncpy(p, data->icon[day], p_max_size);
 663         } else if (strcmp(data_type, "forecast") == EQUAL) {
 664                 strncpy(p, data->xoap_t[day], p_max_size);
 665         } else if (strcmp(data_type, "wind_speed") == EQUAL) {
 666                 snprintf(p, p_max_size, "%d", data->wind_s[day]);
 667         } else if (strcmp(data_type, "wind_dir") == EQUAL) {
 668                 wind_deg_to_dir(p, p_max_size, data->wind_d[day]);
 669         } else if (strcmp(data_type, "wind_dir_DEG") == EQUAL) {
 670                 snprintf(p, p_max_size, "%d", data->wind_d[day]);
 671         } else if (strcmp(data_type, "humidity") == EQUAL) {
 672                 snprintf(p, p_max_size, "%d", data->hmid[day]);
 673         } else if (strcmp(data_type, "precipitation") == EQUAL) {
 674                 snprintf(p, p_max_size, "%d", data->ppcp[day]);
 675         }
 676
 677         timed_thread_unlock(curloc->p_timed_thread);
 678 }
 679 #endif /* XOAP */
 680
 681 void weather_process_info(char *p, int p_max_size, char *uri, char *data_type, int interval)
 682 {
 683         static const char *wc[] = {
 684                 "", "drizzle", "rain", "hail", "soft hail",
 685                 "snow", "snow grains", "fog", "haze", "smoke",
 686                 "mist", "dust", "sand", "funnel cloud tornado",
 687                 "dust/sand", "squall", "sand storm", "dust storm"
 688         };
 689         PWEATHER *data;
 690
 691         ccurl_location_t *curloc = ccurl_find_location(&locations_head_cc, uri);
 692         if (!curloc->p_timed_thread) {
 693                 curloc->result = malloc(sizeof(PWEATHER));
 694                 memset(curloc->result, 0, sizeof(PWEATHER));
 695                 curloc->process_function = &parse_weather;
 696                 ccurl_init_thread(curloc, interval);
 697                 if (!curloc->p_timed_thread) {
 698                         NORM_ERR("error setting up weather thread");
 699                 }
 700         }
 701
 702         timed_thread_lock(curloc->p_timed_thread);
 703         data = (PWEATHER*)curloc->result;
 704         if (strcmp(data_type, "last_update") == EQUAL) {
 705                 strncpy(p, data->lastupd, p_max_size);
 706         } else if (strcmp(data_type, "temperature") == EQUAL) {
 707                 temp_print(p, p_max_size, data->temp, TEMP_CELSIUS);
 708         } else if (strcmp(data_type, "cloud_cover") == EQUAL) {
 709 #ifdef XOAP
 710                 if (data->xoap_t[0] != '\0') {
 711                         char *s = p;
 712                         strncpy(p, data->xoap_t, p_max_size);
 713                         while (*s) {
 714                                 *s = tolower(*s);
 715                                 s++;
 716                         }
 717                 } else
 718 #endif /* XOAP */
 719                         if (data->cc == 0) {
 720                                 strncpy(p, "", p_max_size);
 721                         } else if (data->cc < 3) {
 722                                 strncpy(p, "clear", p_max_size);
 723                         } else if (data->cc < 5) {
 724                                 strncpy(p, "partly cloudy", p_max_size);
 725                         } else if (data->cc == 5) {
 726                                 strncpy(p, "cloudy", p_max_size);
 727                         } else if (data->cc == 6) {
 728                                 strncpy(p, "overcast", p_max_size);
 729                         } else if (data->cc == 7) {
 730                                 strncpy(p, "towering cumulus", p_max_size);
 731                         } else  {
 732                                 strncpy(p, "cumulonimbus", p_max_size);
 733                         }
 734 #ifdef XOAP
 735         } else if (strcmp(data_type, "icon") == EQUAL) {
 736                 strncpy(p, data->icon, p_max_size);
 737 #endif /* XOAP */
 738         } else if (strcmp(data_type, "pressure") == EQUAL) {
 739                 snprintf(p, p_max_size, "%d", data->bar);
 740         } else if (strcmp(data_type, "wind_speed") == EQUAL) {
 741                 snprintf(p, p_max_size, "%d", data->wind_s);
 742         } else if (strcmp(data_type, "wind_dir") == EQUAL) {
 743                 wind_deg_to_dir(p, p_max_size, data->wind_d);
 744         } else if (strcmp(data_type, "wind_dir_DEG") == EQUAL) {
 745                 snprintf(p, p_max_size, "%d", data->wind_d);
 746
 747         } else if (strcmp(data_type, "humidity") == EQUAL) {
 748                 snprintf(p, p_max_size, "%d", data->hmid);
 749         } else if (strcmp(data_type, "weather") == EQUAL) {
 750                 strncpy(p, wc[data->wc], p_max_size);
 751         }
 752
 753         timed_thread_unlock(curloc->p_timed_thread);
 754 }
 755
 756 #ifdef XOAP
 757
 758 /* xoap suffix for weather from weather.com */
 759 static char *xoap_cc = NULL;
 760 static char *xoap_df = NULL;
 761
 762 /*
 763  * TODO: make the xoap keys file readable from the config file
 764  *       make the keys directly readable from the config file
 765  *       make the xoap keys file giveable as a command line option
 766  */
 767 void load_xoap_keys(void)
 768 {
 769         FILE *fp;
 770         char *par  = (char *) malloc(11 * sizeof(char));
 771         char *key  = (char *) malloc(17 * sizeof(char));
 772         char *xoap = (char *) malloc(64 * sizeof(char));
 773
 774         to_real_path(xoap, XOAP_FILE);
 775         fp = fopen(xoap, "r");
 776         if (fp != NULL) {
 777                 if (fscanf(fp, "%10s %16s", par, key) == 2) {
 778                         xoap_cc = (char *) malloc(128 * sizeof(char));
 779                         xoap_df = (char *) malloc(128 * sizeof(char));
 780
 781                         strcpy(xoap_cc, "?cc=*&link=xoap&prod=xoap&par=");
 782                         strcat(xoap_cc, par);
 783                         strcat(xoap_cc, "&key=");
 784                         strcat(xoap_cc, key);
 785                         strcat(xoap_cc, "&unit=m");
 786
 787                         /* TODO: Use FORECAST_DAYS instead of 5 */
 788                         strcpy(xoap_df, "?dayf=5&link=xoap&prod=xoap&par=");
 789                         strcat(xoap_df, par);
 790                         strcat(xoap_df, "&key=");
 791                         strcat(xoap_df, key);
 792                         strcat(xoap_df, "&unit=m");
 793                 }
 794                 fclose(fp);
 795         }
 796         free(par);
 797         free(key);
 798         free(xoap);
 799 }
 800 #endif /* XOAP */
 801
 802 int process_weather_uri(char *uri, char *locID, int dayf UNUSED_ATTR)
 803 {
 804         /* locID MUST BE upper-case */
 805         char *tmp_p = locID;
 806
 807         while (*tmp_p) {
 808                 *tmp_p = toupper(*tmp_p);
 809                 tmp_p++;
 810         }
 811
 812         /* Construct complete uri */
 813 #ifdef XOAP
 814         if (strstr(uri, "xoap.weather.com")) {
 815                 if ((dayf == 0) && (xoap_cc != NULL)) {
 816                         strcat(uri, locID);
 817                         strcat(uri, xoap_cc);
 818                 } else if ((dayf == 1) && (xoap_df != NULL)) {
 819                         strcat(uri, locID);
 820                         strcat(uri, xoap_df);
 821                 } else {
 822                         free(uri);
 823                         uri = NULL;
 824                 }
 825         } else
 826 #endif /* XOAP */
 827         if (strstr(uri, "weather.noaa.gov")) {
 828                 strcat(uri, locID);
 829                 strcat(uri, ".TXT");
 830         } else  if (!strstr(uri, "localhost") && !strstr(uri, "127.0.0.1")) {
 831                 return -1;
 832         }
 833         return 0;
 834 }