| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | #include "libnetdata/libnetdata.h" |
| 4 | #include "../../../server/web_client.h" |
| 5 | |
| 6 | #define BADGE_HORIZONTAL_PADDING 4 |
| 7 | #define VERDANA_KERNING 0.2 |
| 8 | #define VERDANA_PADDING 1.0 |
| 9 | |
| 10 | /* |
| 11 | * verdana11_widths[] has been generated with this method: |
| 12 | * https://github.com/badges/shields/blob/master/measure-text.js |
| 13 | */ |
| 14 | |
| 15 | static double verdana11_widths[128] = { |
| 16 | [0] = 0.0, |
| 17 | [1] = 0.0, |
| 18 | [2] = 0.0, |
| 19 | [3] = 0.0, |
| 20 | [4] = 0.0, |
| 21 | [5] = 0.0, |
| 22 | [6] = 0.0, |
| 23 | [7] = 0.0, |
| 24 | [8] = 0.0, |
| 25 | [9] = 0.0, |
| 26 | [10] = 0.0, |
| 27 | [11] = 0.0, |
| 28 | [12] = 0.0, |
| 29 | [13] = 0.0, |
| 30 | [14] = 0.0, |
| 31 | [15] = 0.0, |
| 32 | [16] = 0.0, |
| 33 | [17] = 0.0, |
| 34 | [18] = 0.0, |
| 35 | [19] = 0.0, |
| 36 | [20] = 0.0, |
| 37 | [21] = 0.0, |
| 38 | [22] = 0.0, |
| 39 | [23] = 0.0, |
| 40 | [24] = 0.0, |
| 41 | [25] = 0.0, |
| 42 | [26] = 0.0, |
| 43 | [27] = 0.0, |
| 44 | [28] = 0.0, |
| 45 | [29] = 0.0, |
| 46 | [30] = 0.0, |
| 47 | [31] = 0.0, |
| 48 | [32] = 3.8671874999999996, // |
| 49 | [33] = 4.3291015625, // ! |
| 50 | [34] = 5.048828125, // " |
| 51 | [35] = 9.001953125, // # |
| 52 | [36] = 6.9931640625, // $ |
| 53 | [37] = 11.837890625, // % |
| 54 | [38] = 7.992187499999999, // & |
| 55 | [39] = 2.9541015625, // ' |
| 56 | [40] = 4.9951171875, // ( |
| 57 | [41] = 4.9951171875, // ) |
| 58 | [42] = 6.9931640625, // * |
| 59 | [43] = 9.001953125, // + |
| 60 | [44] = 4.00146484375, // , |
| 61 | [45] = 4.9951171875, // - |
| 62 | [46] = 4.00146484375, // . |
| 63 | [47] = 4.9951171875, // / |
| 64 | [48] = 6.9931640625, // 0 |
| 65 | [49] = 6.9931640625, // 1 |
| 66 | [50] = 6.9931640625, // 2 |
| 67 | [51] = 6.9931640625, // 3 |
| 68 | [52] = 6.9931640625, // 4 |
| 69 | [53] = 6.9931640625, // 5 |
| 70 | [54] = 6.9931640625, // 6 |
| 71 | [55] = 6.9931640625, // 7 |
| 72 | [56] = 6.9931640625, // 8 |
| 73 | [57] = 6.9931640625, // 9 |
| 74 | [58] = 4.9951171875, // : |
| 75 | [59] = 4.9951171875, // ; |
| 76 | [60] = 9.001953125, // < |
| 77 | [61] = 9.001953125, // = |
| 78 | [62] = 9.001953125, // > |
| 79 | [63] = 5.99951171875, // ? |
| 80 | [64] = 11.0, // @ |
| 81 | [65] = 7.51953125, // A |
| 82 | [66] = 7.541015625, // B |
| 83 | [67] = 7.680664062499999, // C |
| 84 | [68] = 8.4755859375, // D |
| 85 | [69] = 6.95556640625, // E |
| 86 | [70] = 6.32177734375, // F |
| 87 | [71] = 8.529296875, // G |
| 88 | [72] = 8.26611328125, // H |
| 89 | [73] = 4.6298828125, // I |
| 90 | [74] = 5.00048828125, // J |
| 91 | [75] = 7.62158203125, // K |
| 92 | [76] = 6.123046875, // L |
| 93 | [77] = 9.2705078125, // M |
| 94 | [78] = 8.228515625, // N |
| 95 | [79] = 8.658203125, // O |
| 96 | [80] = 6.63330078125, // P |
| 97 | [81] = 8.658203125, // Q |
| 98 | [82] = 7.6484375, // R |
| 99 | [83] = 7.51953125, // S |
| 100 | [84] = 6.7783203125, // T |
| 101 | [85] = 8.05126953125, // U |
| 102 | [86] = 7.51953125, // V |
| 103 | [87] = 10.87646484375, // W |
| 104 | [88] = 7.53564453125, // X |
| 105 | [89] = 6.767578125, // Y |
| 106 | [90] = 7.53564453125, // Z |
| 107 | [91] = 4.9951171875, // [ |
| 108 | [92] = 4.9951171875, // backslash |
| 109 | [93] = 4.9951171875, // ] |
| 110 | [94] = 9.001953125, // ^ |
| 111 | [95] = 6.9931640625, // _ |
| 112 | [96] = 6.9931640625, // ` |
| 113 | [97] = 6.6064453125, // a |
| 114 | [98] = 6.853515625, // b |
| 115 | [99] = 5.73095703125, // c |
| 116 | [100] = 6.853515625, // d |
| 117 | [101] = 6.552734375, // e |
| 118 | [102] = 3.8671874999999996, // f |
| 119 | [103] = 6.853515625, // g |
| 120 | [104] = 6.9609375, // h |
| 121 | [105] = 3.0185546875, // i |
| 122 | [106] = 3.78662109375, // j |
| 123 | [107] = 6.509765625, // k |
| 124 | [108] = 3.0185546875, // l |
| 125 | [109] = 10.69921875, // m |
| 126 | [110] = 6.9609375, // n |
| 127 | [111] = 6.67626953125, // o |
| 128 | [112] = 6.853515625, // p |
| 129 | [113] = 6.853515625, // q |
| 130 | [114] = 4.6943359375, // r |
| 131 | [115] = 5.73095703125, // s |
| 132 | [116] = 4.33447265625, // t |
| 133 | [117] = 6.9609375, // u |
| 134 | [118] = 6.509765625, // v |
| 135 | [119] = 9.001953125, // w |
| 136 | [120] = 6.509765625, // x |
| 137 | [121] = 6.509765625, // y |
| 138 | [122] = 5.779296875, // z |
| 139 | [123] = 6.982421875, // { |
| 140 | [124] = 4.9951171875, // | |
| 141 | [125] = 6.982421875, // } |
| 142 | [126] = 9.001953125, // ~ |
| 143 | [127] = 0.0 |
| 144 | }; |
| 145 | |
| 146 | // find the width of the string using the verdana 11points font |
| 147 | static inline double verdana11_width(const char *s, float em_size) { |
| 148 | double w = 0.0; |
| 149 | |
| 150 | while(*s) { |
| 151 | // if UTF8 multibyte char found and guess it's width equal 1em |
| 152 | // as label width will be updated with JavaScript this is not so important |
| 153 | |
| 154 | // TODO: maybe move UTF8 functions from url.c to separate util in libnetdata |
| 155 | // then use url_utf8_get_byte_length etc. |
| 156 | if(IS_UTF8_STARTBYTE(*s)) { |
| 157 | s++; |
| 158 | while(IS_UTF8_BYTE(*s) && !IS_UTF8_STARTBYTE(*s)){ |
| 159 | s++; |
| 160 | } |
| 161 | w += em_size; |
| 162 | } |
| 163 | else { |
| 164 | if(likely(!(*s & 0x80))){ // Byte 1XXX XXXX is not valid in UTF8 |
| 165 | double t = verdana11_widths[(unsigned char)*s]; |
| 166 | if(t != 0.0) |
| 167 | w += t + VERDANA_KERNING; |
| 168 | } |
| 169 | s++; |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | w -= VERDANA_KERNING; |
| 174 | w += VERDANA_PADDING; |
| 175 | return w; |
| 176 | } |
| 177 | |
| 178 | static inline size_t escape_xmlz(char *dst, const char *src, size_t len) { |
| 179 | size_t i = len; |
| 180 | |
| 181 | // required escapes from |
| 182 | // https://github.com/badges/shields/blob/master/badge.js |
| 183 | while(*src && i) { |
| 184 | switch(*src) { |
| 185 | case '\\': |
| 186 | *dst++ = '/'; |
| 187 | src++; |
| 188 | i--; |
| 189 | break; |
| 190 | |
| 191 | case '&': |
| 192 | if(i > 5) { |
| 193 | strcpy(dst, "&"); |
| 194 | i -= 5; |
| 195 | dst += 5; |
| 196 | src++; |
| 197 | } |
| 198 | else goto cleanup; |
| 199 | break; |
| 200 | |
| 201 | case '<': |
| 202 | if(i > 4) { |
| 203 | strcpy(dst, "<"); |
| 204 | i -= 4; |
| 205 | dst += 4; |
| 206 | src++; |
| 207 | } |
| 208 | else goto cleanup; |
| 209 | break; |
| 210 | |
| 211 | case '>': |
| 212 | if(i > 4) { |
| 213 | strcpy(dst, ">"); |
| 214 | i -= 4; |
| 215 | dst += 4; |
| 216 | src++; |
| 217 | } |
| 218 | else goto cleanup; |
| 219 | break; |
| 220 | |
| 221 | case '"': |
| 222 | if(i > 6) { |
| 223 | strcpy(dst, """); |
| 224 | i -= 6; |
| 225 | dst += 6; |
| 226 | src++; |
| 227 | } |
| 228 | else goto cleanup; |
| 229 | break; |
| 230 | |
| 231 | case '\'': |
| 232 | if(i > 6) { |
| 233 | strcpy(dst, "'"); |
| 234 | i -= 6; |
| 235 | dst += 6; |
| 236 | src++; |
| 237 | } |
| 238 | else goto cleanup; |
| 239 | break; |
| 240 | |
| 241 | default: |
| 242 | i--; |
| 243 | *dst++ = *src++; |
| 244 | break; |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | cleanup: |
| 249 | *dst = '\0'; |
| 250 | return len - i; |
| 251 | } |
| 252 | |
| 253 | static inline char *format_value_with_precision_and_unit(char *value_string, size_t value_string_len, |
| 254 | NETDATA_DOUBLE value, const char *units, int precision) { |
| 255 | if(unlikely(isnan(value) || isinf(value))) |
| 256 | value = 0.0; |
| 257 | |
| 258 | char *separator = ""; |
| 259 | if(unlikely(isalnum((uint8_t)*units))) |
| 260 | separator = " "; |
| 261 | |
| 262 | if(precision < 0) { |
| 263 | int len, lstop = 0, trim_zeros = 1; |
| 264 | |
| 265 | NETDATA_DOUBLE abs = value; |
| 266 | if(isless(value, 0)) { |
| 267 | lstop = 1; |
| 268 | abs = fabsndd(value); |
| 269 | } |
| 270 | |
| 271 | if(isgreaterequal(abs, 1000)) { |
| 272 | len = snprintfz(value_string, value_string_len, "%0.0" NETDATA_DOUBLE_MODIFIER, (NETDATA_DOUBLE) value); |
| 273 | trim_zeros = 0; |
| 274 | } |
| 275 | else if(isgreaterequal(abs, 10)) len = snprintfz(value_string, value_string_len, "%0.1" NETDATA_DOUBLE_MODIFIER, (NETDATA_DOUBLE) value); |
| 276 | else if(isgreaterequal(abs, 1)) len = snprintfz(value_string, value_string_len, "%0.2" NETDATA_DOUBLE_MODIFIER, (NETDATA_DOUBLE) value); |
| 277 | else if(isgreaterequal(abs, 0.1)) len = snprintfz(value_string, value_string_len, "%0.2" NETDATA_DOUBLE_MODIFIER, (NETDATA_DOUBLE) value); |
| 278 | else if(isgreaterequal(abs, 0.01)) len = snprintfz(value_string, value_string_len, "%0.4" NETDATA_DOUBLE_MODIFIER, (NETDATA_DOUBLE) value); |
| 279 | else if(isgreaterequal(abs, 0.001)) len = snprintfz(value_string, value_string_len, "%0.5" NETDATA_DOUBLE_MODIFIER, (NETDATA_DOUBLE) value); |
| 280 | else if(isgreaterequal(abs, 0.0001)) len = snprintfz(value_string, value_string_len, "%0.6" NETDATA_DOUBLE_MODIFIER, (NETDATA_DOUBLE) value); |
| 281 | else len = snprintfz(value_string, value_string_len, "%0.7" NETDATA_DOUBLE_MODIFIER, (NETDATA_DOUBLE) value); |
| 282 | |
| 283 | if(unlikely(trim_zeros)) { |
| 284 | int l; |
| 285 | // remove trailing zeros from the decimal part |
| 286 | for(l = len - 1; l > lstop; l--) { |
| 287 | if(likely(value_string[l] == '0')) { |
| 288 | value_string[l] = '\0'; |
| 289 | len--; |
| 290 | } |
| 291 | |
| 292 | else if(unlikely(value_string[l] == '.')) { |
| 293 | value_string[l] = '\0'; |
| 294 | len--; |
| 295 | break; |
| 296 | } |
| 297 | |
| 298 | else |
| 299 | break; |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | if(unlikely(len <= 0)) len = 1; |
| 304 | snprintfz(&value_string[len], value_string_len - len, "%s%s", separator, units); |
| 305 | } |
| 306 | else { |
| 307 | if(precision > 50) precision = 50; |
| 308 | snprintfz(value_string, value_string_len, "%0.*" NETDATA_DOUBLE_MODIFIER "%s%s", precision, (NETDATA_DOUBLE) value, separator, units); |
| 309 | } |
| 310 | |
| 311 | return value_string; |
| 312 | } |
| 313 | |
| 314 | typedef enum badge_units_format { |
| 315 | UNITS_FORMAT_NONE, |
| 316 | UNITS_FORMAT_SECONDS, |
| 317 | UNITS_FORMAT_SECONDS_AGO, |
| 318 | UNITS_FORMAT_MINUTES, |
| 319 | UNITS_FORMAT_MINUTES_AGO, |
| 320 | UNITS_FORMAT_HOURS, |
| 321 | UNITS_FORMAT_HOURS_AGO, |
| 322 | UNITS_FORMAT_ONOFF, |
| 323 | UNITS_FORMAT_UPDOWN, |
| 324 | UNITS_FORMAT_OKERROR, |
| 325 | UNITS_FORMAT_OKFAILED, |
| 326 | UNITS_FORMAT_EMPTY, |
| 327 | UNITS_FORMAT_PERCENT |
| 328 | } UNITS_FORMAT; |
| 329 | |
| 330 | |
| 331 | static struct units_formatter { |
| 332 | const char *units; |
| 333 | uint32_t hash; |
| 334 | UNITS_FORMAT format; |
| 335 | } badge_units_formatters[] = { |
| 336 | { "seconds", 0, UNITS_FORMAT_SECONDS }, |
| 337 | { "seconds ago", 0, UNITS_FORMAT_SECONDS_AGO }, |
| 338 | { "minutes", 0, UNITS_FORMAT_MINUTES }, |
| 339 | { "minutes ago", 0, UNITS_FORMAT_MINUTES_AGO }, |
| 340 | { "hours", 0, UNITS_FORMAT_HOURS }, |
| 341 | { "hours ago", 0, UNITS_FORMAT_HOURS_AGO }, |
| 342 | { "on/off", 0, UNITS_FORMAT_ONOFF }, |
| 343 | { "on-off", 0, UNITS_FORMAT_ONOFF }, |
| 344 | { "onoff", 0, UNITS_FORMAT_ONOFF }, |
| 345 | { "up/down", 0, UNITS_FORMAT_UPDOWN }, |
| 346 | { "up-down", 0, UNITS_FORMAT_UPDOWN }, |
| 347 | { "updown", 0, UNITS_FORMAT_UPDOWN }, |
| 348 | { "ok/error", 0, UNITS_FORMAT_OKERROR }, |
| 349 | { "ok-error", 0, UNITS_FORMAT_OKERROR }, |
| 350 | { "okerror", 0, UNITS_FORMAT_OKERROR }, |
| 351 | { "ok/failed", 0, UNITS_FORMAT_OKFAILED }, |
| 352 | { "ok-failed", 0, UNITS_FORMAT_OKFAILED }, |
| 353 | { "okfailed", 0, UNITS_FORMAT_OKFAILED }, |
| 354 | { "empty", 0, UNITS_FORMAT_EMPTY }, |
| 355 | { "null", 0, UNITS_FORMAT_EMPTY }, |
| 356 | { "percentage", 0, UNITS_FORMAT_PERCENT }, |
| 357 | { "percent", 0, UNITS_FORMAT_PERCENT }, |
| 358 | { "pcent", 0, UNITS_FORMAT_PERCENT }, |
| 359 | |
| 360 | // terminator |
| 361 | { NULL, 0, UNITS_FORMAT_NONE } |
| 362 | }; |
| 363 | |
| 364 | char *format_value_and_unit(char *value_string, size_t value_string_len, |
| 365 | NETDATA_DOUBLE value, const char *units, int precision) { |
| 366 | static int max = -1; |
| 367 | int i; |
| 368 | |
| 369 | if(unlikely(max == -1)) { |
| 370 | for(i = 0; badge_units_formatters[i].units; i++) |
| 371 | badge_units_formatters[i].hash = simple_hash(badge_units_formatters[i].units); |
| 372 | |
| 373 | max = i; |
| 374 | } |
| 375 | |
| 376 | if(unlikely(!units)) units = ""; |
| 377 | uint32_t hash_units = simple_hash(units); |
| 378 | |
| 379 | UNITS_FORMAT format = UNITS_FORMAT_NONE; |
| 380 | for(i = 0; i < max; i++) { |
| 381 | struct units_formatter *ptr = &badge_units_formatters[i]; |
| 382 | |
| 383 | if(hash_units == ptr->hash && !strcmp(units, ptr->units)) { |
| 384 | format = ptr->format; |
| 385 | break; |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | if(unlikely(format == UNITS_FORMAT_SECONDS || format == UNITS_FORMAT_SECONDS_AGO)) { |
| 390 | if(value == 0.0) { |
| 391 | snprintfz(value_string, value_string_len, "%s", "now"); |
| 392 | return value_string; |
| 393 | } |
| 394 | else if(isnan(value) || isinf(value)) { |
| 395 | snprintfz(value_string, value_string_len, "%s", "undefined"); |
| 396 | return value_string; |
| 397 | } |
| 398 | |
| 399 | const char *suffix = (format == UNITS_FORMAT_SECONDS_AGO)?" ago":""; |
| 400 | |
| 401 | size_t s = (size_t)value; |
| 402 | size_t d = s / 86400; |
| 403 | s = s % 86400; |
| 404 | |
| 405 | size_t h = s / 3600; |
| 406 | s = s % 3600; |
| 407 | |
| 408 | size_t m = s / 60; |
| 409 | s = s % 60; |
| 410 | |
| 411 | if(d) |
| 412 | snprintfz(value_string, value_string_len, "%zu %s %02zu:%02zu:%02zu%s", d, (d == 1)?"day":"days", h, m, s, suffix); |
| 413 | else |
| 414 | snprintfz(value_string, value_string_len, "%02zu:%02zu:%02zu%s", h, m, s, suffix); |
| 415 | |
| 416 | return value_string; |
| 417 | } |
| 418 | |
| 419 | else if(unlikely(format == UNITS_FORMAT_MINUTES || format == UNITS_FORMAT_MINUTES_AGO)) { |
| 420 | if(value == 0.0) { |
| 421 | snprintfz(value_string, value_string_len, "%s", "now"); |
| 422 | return value_string; |
| 423 | } |
| 424 | else if(isnan(value) || isinf(value)) { |
| 425 | snprintfz(value_string, value_string_len, "%s", "undefined"); |
| 426 | return value_string; |
| 427 | } |
| 428 | |
| 429 | const char *suffix = (format == UNITS_FORMAT_MINUTES_AGO)?" ago":""; |
| 430 | |
| 431 | size_t m = (size_t)value; |
| 432 | size_t d = m / (60 * 24); |
| 433 | m = m % (60 * 24); |
| 434 | |
| 435 | size_t h = m / 60; |
| 436 | m = m % 60; |
| 437 | |
| 438 | if(d) |
| 439 | snprintfz(value_string, value_string_len, "%zud %02zuh %02zum%s", d, h, m, suffix); |
| 440 | else |
| 441 | snprintfz(value_string, value_string_len, "%zuh %zum%s", h, m, suffix); |
| 442 | |
| 443 | return value_string; |
| 444 | } |
| 445 | |
| 446 | else if(unlikely(format == UNITS_FORMAT_HOURS || format == UNITS_FORMAT_HOURS_AGO)) { |
| 447 | if(value == 0.0) { |
| 448 | snprintfz(value_string, value_string_len, "%s", "now"); |
| 449 | return value_string; |
| 450 | } |
| 451 | else if(isnan(value) || isinf(value)) { |
| 452 | snprintfz(value_string, value_string_len, "%s", "undefined"); |
| 453 | return value_string; |
| 454 | } |
| 455 | |
| 456 | const char *suffix = (format == UNITS_FORMAT_HOURS_AGO)?" ago":""; |
| 457 | |
| 458 | size_t h = (size_t)value; |
| 459 | size_t d = h / 24; |
| 460 | h = h % 24; |
| 461 | |
| 462 | if(d) |
| 463 | snprintfz(value_string, value_string_len, "%zud %zuh%s", d, h, suffix); |
| 464 | else |
| 465 | snprintfz(value_string, value_string_len, "%zuh%s", h, suffix); |
| 466 | |
| 467 | return value_string; |
| 468 | } |
| 469 | |
| 470 | else if(unlikely(format == UNITS_FORMAT_ONOFF)) { |
| 471 | snprintfz(value_string, value_string_len, "%s", (value != 0.0)?"on":"off"); |
| 472 | return value_string; |
| 473 | } |
| 474 | |
| 475 | else if(unlikely(format == UNITS_FORMAT_UPDOWN)) { |
| 476 | snprintfz(value_string, value_string_len, "%s", (value != 0.0)?"up":"down"); |
| 477 | return value_string; |
| 478 | } |
| 479 | |
| 480 | else if(unlikely(format == UNITS_FORMAT_OKERROR)) { |
| 481 | snprintfz(value_string, value_string_len, "%s", (value != 0.0)?"ok":"error"); |
| 482 | return value_string; |
| 483 | } |
| 484 | |
| 485 | else if(unlikely(format == UNITS_FORMAT_OKFAILED)) { |
| 486 | snprintfz(value_string, value_string_len, "%s", (value != 0.0)?"ok":"failed"); |
| 487 | return value_string; |
| 488 | } |
| 489 | |
| 490 | else if(unlikely(format == UNITS_FORMAT_EMPTY)) |
| 491 | units = ""; |
| 492 | |
| 493 | else if(unlikely(format == UNITS_FORMAT_PERCENT)) |
| 494 | units = "%"; |
| 495 | |
| 496 | if(unlikely(isnan(value) || isinf(value))) { |
| 497 | strcpy(value_string, "-"); |
| 498 | return value_string; |
| 499 | } |
| 500 | |
| 501 | return format_value_with_precision_and_unit(value_string, value_string_len, value, units, precision); |
| 502 | } |
| 503 | |
| 504 | static struct badge_color { |
| 505 | const char *name; |
| 506 | uint32_t hash; |
| 507 | const char *color; |
| 508 | } badge_colors[] = { |
| 509 | |
| 510 | // colors from: |
| 511 | // https://github.com/badges/shields/blob/master/colorscheme.json |
| 512 | |
| 513 | { "brightgreen", 0, "4c1" }, |
| 514 | { "green", 0, "97CA00" }, |
| 515 | { "yellow", 0, "dfb317" }, |
| 516 | { "yellowgreen", 0, "a4a61d" }, |
| 517 | { "orange", 0, "fe7d37" }, |
| 518 | { "red", 0, "e05d44" }, |
| 519 | { "blue", 0, "007ec6" }, |
| 520 | { "grey", 0, "555" }, |
| 521 | { "gray", 0, "555" }, |
| 522 | { "lightgrey", 0, "9f9f9f" }, |
| 523 | { "lightgray", 0, "9f9f9f" }, |
| 524 | |
| 525 | // terminator |
| 526 | { NULL, 0, NULL } |
| 527 | }; |
| 528 | |
| 529 | static inline const char *color_map(const char *color, const char *def) { |
| 530 | static int max = -1; |
| 531 | int i; |
| 532 | |
| 533 | if(unlikely(max == -1)) { |
| 534 | for(i = 0; badge_colors[i].name ;i++) |
| 535 | badge_colors[i].hash = simple_hash(badge_colors[i].name); |
| 536 | |
| 537 | max = i; |
| 538 | } |
| 539 | |
| 540 | uint32_t hash = simple_hash(color); |
| 541 | |
| 542 | for(i = 0; i < max; i++) { |
| 543 | struct badge_color *ptr = &badge_colors[i]; |
| 544 | |
| 545 | if(hash == ptr->hash && !strcmp(color, ptr->name)) |
| 546 | return ptr->color; |
| 547 | } |
| 548 | |
| 549 | return def; |
| 550 | } |
| 551 | |
| 552 | typedef enum color_comparison { |
| 553 | COLOR_COMPARE_EQUAL, |
| 554 | COLOR_COMPARE_NOTEQUAL, |
| 555 | COLOR_COMPARE_LESS, |
| 556 | COLOR_COMPARE_LESSEQUAL, |
| 557 | COLOR_COMPARE_GREATER, |
| 558 | COLOR_COMPARE_GREATEREQUAL, |
| 559 | } BADGE_COLOR_COMPARISON; |
| 560 | |
| 561 | static inline void calc_colorz(const char *color, char *final, size_t len, NETDATA_DOUBLE value) { |
| 562 | if(isnan(value) || isinf(value)) |
| 563 | value = NAN; |
| 564 | |
| 565 | char color_buffer[256 + 1] = ""; |
| 566 | char value_buffer[256 + 1] = ""; |
| 567 | BADGE_COLOR_COMPARISON comparison = COLOR_COMPARE_GREATER; |
| 568 | |
| 569 | // example input: |
| 570 | // color<max|color>min|color:null... |
| 571 | |
| 572 | const char *c = color; |
| 573 | while(*c) { |
| 574 | char *dc = color_buffer, *dv = NULL; |
| 575 | size_t ci = 0, vi = 0; |
| 576 | |
| 577 | const char *t = c; |
| 578 | |
| 579 | while(*t && *t != '|') { |
| 580 | switch(*t) { |
| 581 | case '!': |
| 582 | if(t[1] == '=') t++; |
| 583 | comparison = COLOR_COMPARE_NOTEQUAL; |
| 584 | dv = value_buffer; |
| 585 | break; |
| 586 | |
| 587 | case '=': |
| 588 | case ':': |
| 589 | comparison = COLOR_COMPARE_EQUAL; |
| 590 | dv = value_buffer; |
| 591 | break; |
| 592 | |
| 593 | case '}': |
| 594 | case ')': |
| 595 | case '>': |
| 596 | if(t[1] == '=') { |
| 597 | comparison = COLOR_COMPARE_GREATEREQUAL; |
| 598 | t++; |
| 599 | } |
| 600 | else |
| 601 | comparison = COLOR_COMPARE_GREATER; |
| 602 | dv = value_buffer; |
| 603 | break; |
| 604 | |
| 605 | case '{': |
| 606 | case '(': |
| 607 | case '<': |
| 608 | if(t[1] == '=') { |
| 609 | comparison = COLOR_COMPARE_LESSEQUAL; |
| 610 | t++; |
| 611 | } |
| 612 | else if(t[1] == '>' || t[1] == ')' || t[1] == '}') { |
| 613 | comparison = COLOR_COMPARE_NOTEQUAL; |
| 614 | t++; |
| 615 | } |
| 616 | else |
| 617 | comparison = COLOR_COMPARE_LESS; |
| 618 | dv = value_buffer; |
| 619 | break; |
| 620 | |
| 621 | default: |
| 622 | if(dv) { |
| 623 | if(vi < 256) { |
| 624 | vi++; |
| 625 | *dv++ = *t; |
| 626 | } |
| 627 | } |
| 628 | else { |
| 629 | if(ci < 256) { |
| 630 | ci++; |
| 631 | *dc++ = *t; |
| 632 | } |
| 633 | } |
| 634 | break; |
| 635 | } |
| 636 | |
| 637 | t++; |
| 638 | } |
| 639 | |
| 640 | // prepare for next iteration |
| 641 | if(*t == '|') t++; |
| 642 | c = t; |
| 643 | |
| 644 | // do the math |
| 645 | *dc = '\0'; |
| 646 | if(dv) { |
| 647 | *dv = '\0'; |
| 648 | NETDATA_DOUBLE v; |
| 649 | |
| 650 | if(!*value_buffer || !strcmp(value_buffer, "null")) { |
| 651 | v = NAN; |
| 652 | } |
| 653 | else { |
| 654 | v = str2l(value_buffer); |
| 655 | if(isnan(v) || isinf(v)) |
| 656 | v = NAN; |
| 657 | } |
| 658 | |
| 659 | if(unlikely(isnan(value) || isnan(v))) { |
| 660 | if(isnan(value) && isnan(v)) |
| 661 | break; |
| 662 | } |
| 663 | else { |
| 664 | if (unlikely(comparison == COLOR_COMPARE_LESS && isless(value, v))) break; |
| 665 | else if (unlikely(comparison == COLOR_COMPARE_LESSEQUAL && islessequal(value, v))) break; |
| 666 | else if (unlikely(comparison == COLOR_COMPARE_GREATER && isgreater(value, v))) break; |
| 667 | else if (unlikely(comparison == COLOR_COMPARE_GREATEREQUAL && isgreaterequal(value, v))) break; |
| 668 | else if (unlikely(comparison == COLOR_COMPARE_EQUAL && !islessgreater(value, v))) break; |
| 669 | else if (unlikely(comparison == COLOR_COMPARE_NOTEQUAL && islessgreater(value, v))) break; |
| 670 | } |
| 671 | } |
| 672 | else |
| 673 | break; |
| 674 | } |
| 675 | |
| 676 | const char *b; |
| 677 | if(color_buffer[0]) |
| 678 | b = color_buffer; |
| 679 | else |
| 680 | b = color; |
| 681 | |
| 682 | strncpyz(final, b, len); |
| 683 | } |
| 684 | |
| 685 | // value + units |
| 686 | #define VALUE_STRING_SIZE 100 |
| 687 | |
| 688 | // label |
| 689 | #define LABEL_STRING_SIZE 200 |
| 690 | |
| 691 | // colors |
| 692 | #define COLOR_STRING_SIZE 100 |
| 693 | |
| 694 | static inline int allowed_hexa_char(char x) { |
| 695 | return ( (x >= '0' && x <= '9') || |
| 696 | (x >= 'a' && x <= 'f') || |
| 697 | (x >= 'A' && x <= 'F') |
| 698 | ); |
| 699 | } |
| 700 | |
| 701 | static int html_color_check(const char *str) { |
| 702 | int i = 0; |
| 703 | while(str[i]) { |
| 704 | if(!allowed_hexa_char(str[i])) |
| 705 | return 0; |
| 706 | if(unlikely(i >= 6)) |
| 707 | return 0; |
| 708 | i++; |
| 709 | } |
| 710 | // want to allow either RGB or RRGGBB |
| 711 | return ( i == 6 || i == 3 ); |
| 712 | } |
| 713 | |
| 714 | // Will parse color arg as #RRGGBB or #RGB or one of the colors |
| 715 | // from color_map hash table |
| 716 | // if parsing fails (argument error) it will return default color |
| 717 | // given as default parameter (def) |
| 718 | // in any case it will return either color in "RRGGBB" or "RGB" format as string |
| 719 | // or whatever is given as def (without checking - caller responsible to give sensible |
| 720 | // safely escaped default) as default if it fails |
| 721 | // in any case this function must always return something we can put directly in XML |
| 722 | // so no escaping is necessary anymore (with exception of default where caller is responsible) |
| 723 | // to give sensible default |
| 724 | #define BADGE_SVG_COLOR_ARG_MAXLEN 20 |
| 725 | |
| 726 | static const char *parse_color_argument(const char *arg, const char *def) |
| 727 | { |
| 728 | if( !arg ) |
| 729 | return def; |
| 730 | size_t len = strnlen(arg, BADGE_SVG_COLOR_ARG_MAXLEN); |
| 731 | if( len < 2 || len >= BADGE_SVG_COLOR_ARG_MAXLEN ) |
| 732 | return def; |
| 733 | if( html_color_check(arg) ) |
| 734 | return arg; |
| 735 | return color_map(arg, def); |
| 736 | } |
| 737 | |
| 738 | static void buffer_svg(BUFFER *wb, const char *label, |
| 739 | NETDATA_DOUBLE value, const char *units, const char *label_color, const char *value_color, int precision, int scale, uint32_t options, int fixed_width_lbl, int fixed_width_val, const char* text_color_lbl, const char* text_color_val) { |
| 740 | char value_color_buffer[COLOR_STRING_SIZE + 1] |
| 741 | , value_string[VALUE_STRING_SIZE + 1] |
| 742 | , label_escaped[LABEL_STRING_SIZE + 1] |
| 743 | , value_escaped[VALUE_STRING_SIZE + 1]; |
| 744 | |
| 745 | const char *label_color_parsed; |
| 746 | const char *value_color_parsed; |
| 747 | |
| 748 | double label_width = (double)fixed_width_lbl, value_width = (double)fixed_width_val, total_width; |
| 749 | double height = 20.0, font_size = 11.0, text_offset = 5.8, round_corner = 3.0; |
| 750 | |
| 751 | if(scale < 100) scale = 100; |
| 752 | |
| 753 | if(unlikely(!value_color || !*value_color)) |
| 754 | value_color = (isnan(value) || isinf(value))?"999":"4c1"; |
| 755 | |
| 756 | calc_colorz(value_color, value_color_buffer, COLOR_STRING_SIZE, value); |
| 757 | format_value_and_unit(value_string, VALUE_STRING_SIZE, (options & RRDR_OPTION_DISPLAY_ABS)? fabsndd(value):value, units, precision); |
| 758 | |
| 759 | if(fixed_width_lbl <= 0 || fixed_width_val <= 0) { |
| 760 | label_width = verdana11_width(label, font_size) + (BADGE_HORIZONTAL_PADDING * 2); |
| 761 | value_width = verdana11_width(value_string, font_size) + (BADGE_HORIZONTAL_PADDING * 2); |
| 762 | } |
| 763 | total_width = label_width + value_width; |
| 764 | |
| 765 | escape_xmlz(label_escaped, label, LABEL_STRING_SIZE); |
| 766 | escape_xmlz(value_escaped, value_string, VALUE_STRING_SIZE); |
| 767 | |
| 768 | label_color_parsed = parse_color_argument(label_color, "555"); |
| 769 | value_color_parsed = parse_color_argument(value_color_buffer, "555"); |
| 770 | |
| 771 | wb->content_type = CT_IMAGE_SVG_XML; |
| 772 | |
| 773 | total_width = total_width * scale / 100.0; |
| 774 | height = height * scale / 100.0; |
| 775 | font_size = font_size * scale / 100.0; |
| 776 | text_offset = text_offset * scale / 100.0; |
| 777 | label_width = label_width * scale / 100.0; |
| 778 | value_width = value_width * scale / 100.0; |
| 779 | round_corner = round_corner * scale / 100.0; |
| 780 | |
| 781 | // svg template from: |
| 782 | // https://raw.githubusercontent.com/badges/shields/master/templates/flat-template.svg |
| 783 | buffer_sprintf(wb, |
| 784 | "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"%0.2f\" height=\"%0.2f\">" |
| 785 | "<linearGradient id=\"smooth\" x2=\"0\" y2=\"100%%\">" |
| 786 | "<stop offset=\"0\" stop-color=\"#bbb\" stop-opacity=\".1\"/>" |
| 787 | "<stop offset=\"1\" stop-opacity=\".1\"/>" |
| 788 | "</linearGradient>" |
| 789 | "<mask id=\"round\">" |
| 790 | "<rect class=\"bdge-ttl-width\" width=\"%0.2f\" height=\"%0.2f\" rx=\"%0.2f\" fill=\"#fff\"/>" |
| 791 | "</mask>" |
| 792 | "<g mask=\"url(#round)\">" |
| 793 | "<rect class=\"bdge-rect-lbl\" width=\"%0.2f\" height=\"%0.2f\" fill=\"#%s\"/>", |
| 794 | total_width, height, |
| 795 | total_width, height, round_corner, |
| 796 | label_width, height, label_color_parsed); //<rect class="bdge-rect-lbl" |
| 797 | |
| 798 | if(fixed_width_lbl > 0 && fixed_width_val > 0) { |
| 799 | buffer_sprintf(wb, |
| 800 | "<clipPath id=\"lbl-rect\">" |
| 801 | "<rect class=\"bdge-rect-lbl\" width=\"%0.2f\" height=\"%0.2f\"/>" |
| 802 | "</clipPath>", |
| 803 | label_width, height); //<clipPath id="lbl-rect"> <rect class="bdge-rect-lbl" |
| 804 | } |
| 805 | |
| 806 | buffer_sprintf(wb, |
| 807 | "<rect class=\"bdge-rect-val\" x=\"%0.2f\" width=\"%0.2f\" height=\"%0.2f\" fill=\"#%s\"/>", |
| 808 | label_width, value_width, height, value_color_parsed); |
| 809 | |
| 810 | if(fixed_width_lbl > 0 && fixed_width_val > 0) { |
| 811 | buffer_sprintf(wb, |
| 812 | "<clipPath id=\"val-rect\">" |
| 813 | "<rect class=\"bdge-rect-val\" x=\"%0.2f\" width=\"%0.2f\" height=\"%0.2f\"/>" |
| 814 | "</clipPath>", |
| 815 | label_width, value_width, height); |
| 816 | } |
| 817 | |
| 818 | buffer_sprintf(wb, |
| 819 | "<rect class=\"bdge-ttl-width\" width=\"%0.2f\" height=\"%0.2f\" fill=\"url(#smooth)\"/>" |
| 820 | "</g>" |
| 821 | "<g text-anchor=\"middle\" font-family=\"DejaVu Sans,Verdana,Geneva,sans-serif\" font-size=\"%0.2f\">" |
| 822 | "<text class=\"bdge-lbl-lbl\" x=\"%0.2f\" y=\"%0.0f\" fill=\"#010101\" fill-opacity=\".3\" clip-path=\"url(#lbl-rect)\">%s</text>" |
| 823 | "<text class=\"bdge-lbl-lbl\" x=\"%0.2f\" y=\"%0.0f\" fill=\"#%s\" clip-path=\"url(#lbl-rect)\">%s</text>" |
| 824 | "<text class=\"bdge-lbl-val\" x=\"%0.2f\" y=\"%0.0f\" fill=\"#010101\" fill-opacity=\".3\" clip-path=\"url(#val-rect)\">%s</text>" |
| 825 | "<text class=\"bdge-lbl-val\" x=\"%0.2f\" y=\"%0.0f\" fill=\"#%s\" clip-path=\"url(#val-rect)\">%s</text>" |
| 826 | "</g>", |
| 827 | total_width, height, |
| 828 | font_size, |
| 829 | label_width / 2, ceil(height - text_offset), label_escaped, |
| 830 | label_width / 2, ceil(height - text_offset - 1.0), parse_color_argument(text_color_lbl, "fff"), label_escaped, |
| 831 | label_width + value_width / 2 -1, ceil(height - text_offset), value_escaped, |
| 832 | label_width + value_width / 2 -1, ceil(height - text_offset - 1.0), parse_color_argument(text_color_val, "fff"), value_escaped); |
| 833 | |
| 834 | if(fixed_width_lbl <= 0 || fixed_width_val <= 0){ |
| 835 | buffer_sprintf(wb, |
| 836 | "<script type=\"text/javascript\">" |
| 837 | "var bdg_horiz_padding = %d;" |
| 838 | "function netdata_bdge_each(list, attr, value){" |
| 839 | "Array.prototype.forEach.call(list, function(el){" |
| 840 | "el.setAttribute(attr, value);" |
| 841 | "});" |
| 842 | "};" |
| 843 | "var this_svg = document.currentScript.closest(\"svg\");" |
| 844 | "var elem_lbl = this_svg.getElementsByClassName(\"bdge-lbl-lbl\");" |
| 845 | "var elem_val = this_svg.getElementsByClassName(\"bdge-lbl-val\");" |
| 846 | "var lbl_size = elem_lbl[0].getBBox();" |
| 847 | "var val_size = elem_val[0].getBBox();" |
| 848 | "var width_total = lbl_size.width + bdg_horiz_padding*2;" |
| 849 | "this_svg.getElementsByClassName(\"bdge-rect-lbl\")[0].setAttribute(\"width\", width_total);" |
| 850 | "netdata_bdge_each(elem_lbl, \"x\", (lbl_size.width / 2) + bdg_horiz_padding);" |
| 851 | "netdata_bdge_each(elem_val, \"x\", width_total + (val_size.width / 2) + bdg_horiz_padding);" |
| 852 | "var val_rect = this_svg.getElementsByClassName(\"bdge-rect-val\")[0];" |
| 853 | "val_rect.setAttribute(\"width\", val_size.width + bdg_horiz_padding*2);" |
| 854 | "val_rect.setAttribute(\"x\", width_total);" |
| 855 | "width_total += val_size.width + bdg_horiz_padding*2;" |
| 856 | "var width_update_elems = this_svg.getElementsByClassName(\"bdge-ttl-width\");" |
| 857 | "netdata_bdge_each(width_update_elems, \"width\", width_total);" |
| 858 | "this_svg.setAttribute(\"width\", width_total);" |
| 859 | "</script>", |
| 860 | BADGE_HORIZONTAL_PADDING); |
| 861 | } |
| 862 | buffer_sprintf(wb, "</svg>"); |
| 863 | } |
| 864 | |
| 865 | #define BADGE_URL_ARG_LBL_COLOR "text_color_lbl" |
| 866 | #define BADGE_URL_ARG_VAL_COLOR "text_color_val" |
| 867 | |
| 868 | int api_v1_badge(RRDHOST *host, struct web_client *w, char *url) { |
| 869 | int ret = HTTP_RESP_BAD_REQUEST; |
| 870 | buffer_flush(w->response.data); |
| 871 | |
| 872 | BUFFER *dimensions = NULL; |
| 873 | |
| 874 | const char *chart = NULL |
| 875 | , *before_str = NULL |
| 876 | , *after_str = NULL |
| 877 | , *points_str = NULL |
| 878 | , *multiply_str = NULL |
| 879 | , *divide_str = NULL |
| 880 | , *label = NULL |
| 881 | , *units = NULL |
| 882 | , *label_color = NULL |
| 883 | , *value_color = NULL |
| 884 | , *refresh_str = NULL |
| 885 | , *precision_str = NULL |
| 886 | , *scale_str = NULL |
| 887 | , *alarm = NULL |
| 888 | , *fixed_width_lbl_str = NULL |
| 889 | , *fixed_width_val_str = NULL |
| 890 | , *text_color_lbl_str = NULL |
| 891 | , *text_color_val_str = NULL |
| 892 | , *group_options = NULL; |
| 893 | |
| 894 | int group = RRDR_GROUPING_AVERAGE; |
| 895 | uint32_t options = 0x00000000; |
| 896 | |
| 897 | const RRDCALC_ACQUIRED *rca = NULL; |
| 898 | RRDCALC *rc = NULL; |
| 899 | RRDSET *st = NULL; |
| 900 | |
| 901 | while(url) { |
| 902 | char *value = strsep_skip_consecutive_separators(&url, "&"); |
| 903 | if(!value || !*value) continue; |
| 904 | |
| 905 | char *name = strsep_skip_consecutive_separators(&value, "="); |
| 906 | if(!name || !*name) continue; |
| 907 | if(!value || !*value) continue; |
| 908 | |
| 909 | netdata_log_debug(D_WEB_CLIENT, "%llu: API v1 badge.svg query param '%s' with value '%s'", w->id, name, value); |
| 910 | |
| 911 | // name and value are now the parameters |
| 912 | // they are not null and not empty |
| 913 | |
| 914 | if(!strcmp(name, "chart")) chart = value; |
| 915 | else if(!strcmp(name, "dimension") || !strcmp(name, "dim") || !strcmp(name, "dimensions") || !strcmp(name, "dims")) { |
| 916 | if(!dimensions) |
| 917 | dimensions = buffer_create(100, &netdata_buffers_statistics.buffers_api); |
| 918 | |
| 919 | buffer_strcat(dimensions, "|"); |
| 920 | buffer_strcat(dimensions, value); |
| 921 | } |
| 922 | else if(!strcmp(name, "after")) after_str = value; |
| 923 | else if(!strcmp(name, "before")) before_str = value; |
| 924 | else if(!strcmp(name, "points")) points_str = value; |
| 925 | else if(!strcmp(name, "group_options")) group_options = value; |
| 926 | else if(!strcmp(name, "group")) { |
| 927 | group = time_grouping_parse(value, RRDR_GROUPING_AVERAGE); |
| 928 | } |
| 929 | else if(!strcmp(name, "options")) { |
| 930 | options |= rrdr_options_parse(value); |
| 931 | } |
| 932 | else if(!strcmp(name, "label")) label = value; |
| 933 | else if(!strcmp(name, "units")) units = value; |
| 934 | else if(!strcmp(name, "label_color")) label_color = value; |
| 935 | else if(!strcmp(name, "value_color")) value_color = value; |
| 936 | else if(!strcmp(name, "multiply")) multiply_str = value; |
| 937 | else if(!strcmp(name, "divide")) divide_str = value; |
| 938 | else if(!strcmp(name, "refresh")) refresh_str = value; |
| 939 | else if(!strcmp(name, "precision")) precision_str = value; |
| 940 | else if(!strcmp(name, "scale")) scale_str = value; |
| 941 | else if(!strcmp(name, "fixed_width_lbl")) fixed_width_lbl_str = value; |
| 942 | else if(!strcmp(name, "fixed_width_val")) fixed_width_val_str = value; |
| 943 | else if(!strcmp(name, "alarm")) alarm = value; |
| 944 | else if(!strcmp(name, BADGE_URL_ARG_LBL_COLOR)) text_color_lbl_str = value; |
| 945 | else if(!strcmp(name, BADGE_URL_ARG_VAL_COLOR)) text_color_val_str = value; |
| 946 | } |
| 947 | |
| 948 | int fixed_width_lbl = -1; |
| 949 | int fixed_width_val = -1; |
| 950 | |
| 951 | if(fixed_width_lbl_str && *fixed_width_lbl_str |
| 952 | && fixed_width_val_str && *fixed_width_val_str) { |
| 953 | fixed_width_lbl = str2i(fixed_width_lbl_str); |
| 954 | fixed_width_val = str2i(fixed_width_val_str); |
| 955 | } |
| 956 | |
| 957 | if(!chart || !*chart) { |
| 958 | buffer_no_cacheable(w->response.data); |
| 959 | buffer_sprintf(w->response.data, "No chart id is given at the request."); |
| 960 | goto cleanup; |
| 961 | } |
| 962 | |
| 963 | int scale = (scale_str && *scale_str)?str2i(scale_str):100; |
| 964 | |
| 965 | st = rrdset_find(host, chart, false); |
| 966 | if(!st) st = rrdset_find_byname(host, chart); |
| 967 | if(!st) { |
| 968 | buffer_no_cacheable(w->response.data); |
| 969 | buffer_svg(w->response.data, "chart not found", NAN, "", NULL, NULL, -1, scale, 0, -1, -1, NULL, NULL); |
| 970 | ret = HTTP_RESP_OK; |
| 971 | goto cleanup; |
| 972 | } |
| 973 | st->last_accessed_time_s = now_realtime_sec(); |
| 974 | |
| 975 | if(alarm) { |
| 976 | rca = rrdcalc_from_rrdset_get(st, alarm); |
| 977 | rc = rrdcalc_acquired_to_rrdcalc(rca); |
| 978 | |
| 979 | if (!rc) { |
| 980 | buffer_no_cacheable(w->response.data); |
| 981 | buffer_svg(w->response.data, "alarm not found", NAN, "", NULL, NULL, -1, scale, 0, -1, -1, NULL, NULL); |
| 982 | ret = HTTP_RESP_OK; |
| 983 | goto cleanup; |
| 984 | } |
| 985 | } |
| 986 | |
| 987 | long long multiply = (multiply_str && *multiply_str )?str2l(multiply_str):1; |
| 988 | long long divide = (divide_str && *divide_str )?str2l(divide_str):1; |
| 989 | long long before = (before_str && *before_str )?str2l(before_str):0; |
| 990 | long long after = (after_str && *after_str )?str2l(after_str):-st->update_every; |
| 991 | int points = (points_str && *points_str )?str2i(points_str):1; |
| 992 | int precision = (precision_str && *precision_str)?str2i(precision_str):-1; |
| 993 | |
| 994 | if(!multiply) multiply = 1; |
| 995 | if(!divide) divide = 1; |
| 996 | |
| 997 | int refresh = 0; |
| 998 | if(refresh_str && *refresh_str) { |
| 999 | if(!strcmp(refresh_str, "auto")) { |
| 1000 | if(rc) refresh = rc->config.update_every; |
| 1001 | else if(options & RRDR_OPTION_NOT_ALIGNED) |
| 1002 | refresh = st->update_every; |
| 1003 | else { |
| 1004 | refresh = (int)(before - after); |
| 1005 | if(refresh < 0) refresh = -refresh; |
| 1006 | } |
| 1007 | } |
| 1008 | else { |
| 1009 | refresh = str2i(refresh_str); |
| 1010 | if(refresh < 0) refresh = -refresh; |
| 1011 | } |
| 1012 | } |
| 1013 | |
| 1014 | if(!label) { |
| 1015 | if(alarm) { |
| 1016 | char *s = (char *)alarm; |
| 1017 | while(*s) { |
| 1018 | if(*s == '_') *s = ' '; |
| 1019 | s++; |
| 1020 | } |
| 1021 | label = alarm; |
| 1022 | } |
| 1023 | else if(dimensions) { |
| 1024 | const char *dim = buffer_tostring(dimensions); |
| 1025 | if(*dim == '|') dim++; |
| 1026 | label = dim; |
| 1027 | } |
| 1028 | else |
| 1029 | label = rrdset_name(st); |
| 1030 | } |
| 1031 | if(!units) { |
| 1032 | if(alarm) { |
| 1033 | if(rc->config.units) |
| 1034 | units = rrdcalc_units(rc); |
| 1035 | else |
| 1036 | units = ""; |
| 1037 | } |
| 1038 | else if(options & RRDR_OPTION_PERCENTAGE) |
| 1039 | units = "%"; |
| 1040 | else |
| 1041 | units = rrdset_units(st); |
| 1042 | } |
| 1043 | |
| 1044 | netdata_log_debug(D_WEB_CLIENT, "%llu: API command 'badge.svg' for chart '%s', alarm '%s', dimensions '%s', after '%lld', before '%lld', points '%d', group '%d', options '0x%08x'" |
| 1045 | , w->id |
| 1046 | , chart |
| 1047 | , alarm?alarm:"" |
| 1048 | , (dimensions)?buffer_tostring(dimensions):"" |
| 1049 | , after |
| 1050 | , before |
| 1051 | , points |
| 1052 | , group |
| 1053 | , options |
| 1054 | ); |
| 1055 | |
| 1056 | if(rc) { |
| 1057 | if (refresh > 0) { |
| 1058 | buffer_sprintf(w->response.header, "Refresh: %d\r\n", refresh); |
| 1059 | w->response.data->date = now_realtime_sec(); |
| 1060 | w->response.data->expires = w->response.data->date + refresh; |
| 1061 | buffer_cacheable(w->response.data); |
| 1062 | } |
| 1063 | else |
| 1064 | buffer_no_cacheable(w->response.data); |
| 1065 | |
| 1066 | if(!value_color) { |
| 1067 | switch(rc->status) { |
| 1068 | case RRDCALC_STATUS_CRITICAL: |
| 1069 | value_color = "red"; |
| 1070 | break; |
| 1071 | |
| 1072 | case RRDCALC_STATUS_WARNING: |
| 1073 | value_color = "orange"; |
| 1074 | break; |
| 1075 | |
| 1076 | case RRDCALC_STATUS_CLEAR: |
| 1077 | value_color = "brightgreen"; |
| 1078 | break; |
| 1079 | |
| 1080 | case RRDCALC_STATUS_UNDEFINED: |
| 1081 | value_color = "lightgrey"; |
| 1082 | break; |
| 1083 | |
| 1084 | case RRDCALC_STATUS_UNINITIALIZED: |
| 1085 | value_color = "#000"; |
| 1086 | break; |
| 1087 | |
| 1088 | default: |
| 1089 | value_color = "grey"; |
| 1090 | break; |
| 1091 | } |
| 1092 | } |
| 1093 | |
| 1094 | buffer_svg(w->response.data, |
| 1095 | label, |
| 1096 | (isnan(rc->value)||isinf(rc->value)) ? rc->value : rc->value * multiply / divide, |
| 1097 | units, |
| 1098 | label_color, |
| 1099 | value_color, |
| 1100 | precision, |
| 1101 | scale, |
| 1102 | options, |
| 1103 | fixed_width_lbl, |
| 1104 | fixed_width_val, |
| 1105 | text_color_lbl_str, |
| 1106 | text_color_val_str |
| 1107 | ); |
| 1108 | ret = HTTP_RESP_OK; |
| 1109 | } |
| 1110 | else { |
| 1111 | time_t latest_timestamp = 0; |
| 1112 | int value_is_null = 1; |
| 1113 | NETDATA_DOUBLE n = NAN; |
| 1114 | ret = HTTP_RESP_INTERNAL_SERVER_ERROR; |
| 1115 | |
| 1116 | // if the collected value is too old, don't calculate its value |
| 1117 | if (rrdset_last_entry_s(st) >= (now_realtime_sec() - (st->update_every * gap_when_lost_iterations_above))) |
| 1118 | ret = rrdset2value_api_v1(st, w->response.data, &n, |
| 1119 | (dimensions) ? buffer_tostring(dimensions) : NULL, |
| 1120 | points, after, before, group, group_options, 0, options, |
| 1121 | NULL, &latest_timestamp, |
| 1122 | NULL, NULL, NULL, |
| 1123 | &value_is_null, NULL, 0, 0, |
| 1124 | QUERY_SOURCE_API_BADGE, STORAGE_PRIORITY_SYNCHRONOUS_FIRST); |
| 1125 | |
| 1126 | // if the value cannot be calculated, show empty badge |
| 1127 | if (ret != HTTP_RESP_OK) { |
| 1128 | buffer_no_cacheable(w->response.data); |
| 1129 | value_is_null = 1; |
| 1130 | n = 0; |
| 1131 | ret = HTTP_RESP_OK; |
| 1132 | } |
| 1133 | else if (refresh > 0) { |
| 1134 | buffer_sprintf(w->response.header, "Refresh: %d\r\n", refresh); |
| 1135 | w->response.data->expires = now_realtime_sec() + refresh; |
| 1136 | } |
| 1137 | else buffer_no_cacheable(w->response.data); |
| 1138 | |
| 1139 | // render the badge |
| 1140 | buffer_svg(w->response.data, |
| 1141 | label, |
| 1142 | (value_is_null)?NAN:(n * multiply / divide), |
| 1143 | units, |
| 1144 | label_color, |
| 1145 | value_color, |
| 1146 | precision, |
| 1147 | scale, |
| 1148 | options, |
| 1149 | fixed_width_lbl, |
| 1150 | fixed_width_val, |
| 1151 | text_color_lbl_str, |
| 1152 | text_color_val_str |
| 1153 | ); |
| 1154 | } |
| 1155 | |
| 1156 | cleanup: |
| 1157 | rrdcalc_from_rrdset_release(st, rca); |
| 1158 | buffer_free(dimensions); |
| 1159 | return ret; |
| 1160 | } |