summaryrefslogtreecommitdiffstats
path: root/web/api/badges/web_buffer_svg.c
diff options
context:
space:
mode:
Diffstat (limited to 'web/api/badges/web_buffer_svg.c')
-rw-r--r--web/api/badges/web_buffer_svg.c1142
1 files changed, 1142 insertions, 0 deletions
diff --git a/web/api/badges/web_buffer_svg.c b/web/api/badges/web_buffer_svg.c
new file mode 100644
index 000000000..d0600359e
--- /dev/null
+++ b/web/api/badges/web_buffer_svg.c
@@ -0,0 +1,1142 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "web_buffer_svg.h"
+
+#define BADGE_HORIZONTAL_PADDING 4
+#define VERDANA_KERNING 0.2
+#define VERDANA_PADDING 1.0
+
+/*
+ * verdana11_widths[] has been generated with this method:
+ * https://github.com/badges/shields/blob/master/measure-text.js
+*/
+
+static double verdana11_widths[256] = {
+ [0] = 0.0,
+ [1] = 0.0,
+ [2] = 0.0,
+ [3] = 0.0,
+ [4] = 0.0,
+ [5] = 0.0,
+ [6] = 0.0,
+ [7] = 0.0,
+ [8] = 0.0,
+ [9] = 0.0,
+ [10] = 0.0,
+ [11] = 0.0,
+ [12] = 0.0,
+ [13] = 0.0,
+ [14] = 0.0,
+ [15] = 0.0,
+ [16] = 0.0,
+ [17] = 0.0,
+ [18] = 0.0,
+ [19] = 0.0,
+ [20] = 0.0,
+ [21] = 0.0,
+ [22] = 0.0,
+ [23] = 0.0,
+ [24] = 0.0,
+ [25] = 0.0,
+ [26] = 0.0,
+ [27] = 0.0,
+ [28] = 0.0,
+ [29] = 0.0,
+ [30] = 0.0,
+ [31] = 0.0,
+ [32] = 3.8671874999999996, //
+ [33] = 4.3291015625, // !
+ [34] = 5.048828125, // "
+ [35] = 9.001953125, // #
+ [36] = 6.9931640625, // $
+ [37] = 11.837890625, // %
+ [38] = 7.992187499999999, // &
+ [39] = 2.9541015625, // '
+ [40] = 4.9951171875, // (
+ [41] = 4.9951171875, // )
+ [42] = 6.9931640625, // *
+ [43] = 9.001953125, // +
+ [44] = 4.00146484375, // ,
+ [45] = 4.9951171875, // -
+ [46] = 4.00146484375, // .
+ [47] = 4.9951171875, // /
+ [48] = 6.9931640625, // 0
+ [49] = 6.9931640625, // 1
+ [50] = 6.9931640625, // 2
+ [51] = 6.9931640625, // 3
+ [52] = 6.9931640625, // 4
+ [53] = 6.9931640625, // 5
+ [54] = 6.9931640625, // 6
+ [55] = 6.9931640625, // 7
+ [56] = 6.9931640625, // 8
+ [57] = 6.9931640625, // 9
+ [58] = 4.9951171875, // :
+ [59] = 4.9951171875, // ;
+ [60] = 9.001953125, // <
+ [61] = 9.001953125, // =
+ [62] = 9.001953125, // >
+ [63] = 5.99951171875, // ?
+ [64] = 11.0, // @
+ [65] = 7.51953125, // A
+ [66] = 7.541015625, // B
+ [67] = 7.680664062499999, // C
+ [68] = 8.4755859375, // D
+ [69] = 6.95556640625, // E
+ [70] = 6.32177734375, // F
+ [71] = 8.529296875, // G
+ [72] = 8.26611328125, // H
+ [73] = 4.6298828125, // I
+ [74] = 5.00048828125, // J
+ [75] = 7.62158203125, // K
+ [76] = 6.123046875, // L
+ [77] = 9.2705078125, // M
+ [78] = 8.228515625, // N
+ [79] = 8.658203125, // O
+ [80] = 6.63330078125, // P
+ [81] = 8.658203125, // Q
+ [82] = 7.6484375, // R
+ [83] = 7.51953125, // S
+ [84] = 6.7783203125, // T
+ [85] = 8.05126953125, // U
+ [86] = 7.51953125, // V
+ [87] = 10.87646484375, // W
+ [88] = 7.53564453125, // X
+ [89] = 6.767578125, // Y
+ [90] = 7.53564453125, // Z
+ [91] = 4.9951171875, // [
+ [92] = 4.9951171875, // backslash
+ [93] = 4.9951171875, // ]
+ [94] = 9.001953125, // ^
+ [95] = 6.9931640625, // _
+ [96] = 6.9931640625, // `
+ [97] = 6.6064453125, // a
+ [98] = 6.853515625, // b
+ [99] = 5.73095703125, // c
+ [100] = 6.853515625, // d
+ [101] = 6.552734375, // e
+ [102] = 3.8671874999999996, // f
+ [103] = 6.853515625, // g
+ [104] = 6.9609375, // h
+ [105] = 3.0185546875, // i
+ [106] = 3.78662109375, // j
+ [107] = 6.509765625, // k
+ [108] = 3.0185546875, // l
+ [109] = 10.69921875, // m
+ [110] = 6.9609375, // n
+ [111] = 6.67626953125, // o
+ [112] = 6.853515625, // p
+ [113] = 6.853515625, // q
+ [114] = 4.6943359375, // r
+ [115] = 5.73095703125, // s
+ [116] = 4.33447265625, // t
+ [117] = 6.9609375, // u
+ [118] = 6.509765625, // v
+ [119] = 9.001953125, // w
+ [120] = 6.509765625, // x
+ [121] = 6.509765625, // y
+ [122] = 5.779296875, // z
+ [123] = 6.982421875, // {
+ [124] = 4.9951171875, // |
+ [125] = 6.982421875, // }
+ [126] = 9.001953125, // ~
+ [127] = 0.0,
+ [128] = 0.0,
+ [129] = 0.0,
+ [130] = 0.0,
+ [131] = 0.0,
+ [132] = 0.0,
+ [133] = 0.0,
+ [134] = 0.0,
+ [135] = 0.0,
+ [136] = 0.0,
+ [137] = 0.0,
+ [138] = 0.0,
+ [139] = 0.0,
+ [140] = 0.0,
+ [141] = 0.0,
+ [142] = 0.0,
+ [143] = 0.0,
+ [144] = 0.0,
+ [145] = 0.0,
+ [146] = 0.0,
+ [147] = 0.0,
+ [148] = 0.0,
+ [149] = 0.0,
+ [150] = 0.0,
+ [151] = 0.0,
+ [152] = 0.0,
+ [153] = 0.0,
+ [154] = 0.0,
+ [155] = 0.0,
+ [156] = 0.0,
+ [157] = 0.0,
+ [158] = 0.0,
+ [159] = 0.0,
+ [160] = 0.0,
+ [161] = 0.0,
+ [162] = 0.0,
+ [163] = 0.0,
+ [164] = 0.0,
+ [165] = 0.0,
+ [166] = 0.0,
+ [167] = 0.0,
+ [168] = 0.0,
+ [169] = 0.0,
+ [170] = 0.0,
+ [171] = 0.0,
+ [172] = 0.0,
+ [173] = 0.0,
+ [174] = 0.0,
+ [175] = 0.0,
+ [176] = 0.0,
+ [177] = 0.0,
+ [178] = 0.0,
+ [179] = 0.0,
+ [180] = 0.0,
+ [181] = 0.0,
+ [182] = 0.0,
+ [183] = 0.0,
+ [184] = 0.0,
+ [185] = 0.0,
+ [186] = 0.0,
+ [187] = 0.0,
+ [188] = 0.0,
+ [189] = 0.0,
+ [190] = 0.0,
+ [191] = 0.0,
+ [192] = 0.0,
+ [193] = 0.0,
+ [194] = 0.0,
+ [195] = 0.0,
+ [196] = 0.0,
+ [197] = 0.0,
+ [198] = 0.0,
+ [199] = 0.0,
+ [200] = 0.0,
+ [201] = 0.0,
+ [202] = 0.0,
+ [203] = 0.0,
+ [204] = 0.0,
+ [205] = 0.0,
+ [206] = 0.0,
+ [207] = 0.0,
+ [208] = 0.0,
+ [209] = 0.0,
+ [210] = 0.0,
+ [211] = 0.0,
+ [212] = 0.0,
+ [213] = 0.0,
+ [214] = 0.0,
+ [215] = 0.0,
+ [216] = 0.0,
+ [217] = 0.0,
+ [218] = 0.0,
+ [219] = 0.0,
+ [220] = 0.0,
+ [221] = 0.0,
+ [222] = 0.0,
+ [223] = 0.0,
+ [224] = 0.0,
+ [225] = 0.0,
+ [226] = 0.0,
+ [227] = 0.0,
+ [228] = 0.0,
+ [229] = 0.0,
+ [230] = 0.0,
+ [231] = 0.0,
+ [232] = 0.0,
+ [233] = 0.0,
+ [234] = 0.0,
+ [235] = 0.0,
+ [236] = 0.0,
+ [237] = 0.0,
+ [238] = 0.0,
+ [239] = 0.0,
+ [240] = 0.0,
+ [241] = 0.0,
+ [242] = 0.0,
+ [243] = 0.0,
+ [244] = 0.0,
+ [245] = 0.0,
+ [246] = 0.0,
+ [247] = 0.0,
+ [248] = 0.0,
+ [249] = 0.0,
+ [250] = 0.0,
+ [251] = 0.0,
+ [252] = 0.0,
+ [253] = 0.0,
+ [254] = 0.0,
+ [255] = 0.0
+};
+
+// find the width of the string using the verdana 11points font
+// re-write the string in place, skiping zero-length characters
+static inline double verdana11_width(char *s) {
+ double w = 0.0;
+ char *d = s;
+
+ while(*s) {
+ double t = verdana11_widths[(unsigned char)*s];
+ if(t == 0.0)
+ s++;
+ else {
+ w += t + VERDANA_KERNING;
+ if(d != s)
+ *d++ = *s++;
+ else
+ d = ++s;
+ }
+ }
+
+ *d = '\0';
+ w -= VERDANA_KERNING;
+ w += VERDANA_PADDING;
+ return w;
+}
+
+static inline size_t escape_xmlz(char *dst, const char *src, size_t len) {
+ size_t i = len;
+
+ // required escapes from
+ // https://github.com/badges/shields/blob/master/badge.js
+ while(*src && i) {
+ switch(*src) {
+ case '\\':
+ *dst++ = '/';
+ src++;
+ i--;
+ break;
+
+ case '&':
+ if(i > 5) {
+ strcpy(dst, "&amp;");
+ i -= 5;
+ dst += 5;
+ src++;
+ }
+ else goto cleanup;
+ break;
+
+ case '<':
+ if(i > 4) {
+ strcpy(dst, "&lt;");
+ i -= 4;
+ dst += 4;
+ src++;
+ }
+ else goto cleanup;
+ break;
+
+ case '>':
+ if(i > 4) {
+ strcpy(dst, "&gt;");
+ i -= 4;
+ dst += 4;
+ src++;
+ }
+ else goto cleanup;
+ break;
+
+ case '"':
+ if(i > 6) {
+ strcpy(dst, "&quot;");
+ i -= 6;
+ dst += 6;
+ src++;
+ }
+ else goto cleanup;
+ break;
+
+ case '\'':
+ if(i > 6) {
+ strcpy(dst, "&apos;");
+ i -= 6;
+ dst += 6;
+ src++;
+ }
+ else goto cleanup;
+ break;
+
+ default:
+ i--;
+ *dst++ = *src++;
+ break;
+ }
+ }
+
+cleanup:
+ *dst = '\0';
+ return len - i;
+}
+
+static inline char *format_value_with_precision_and_unit(char *value_string, size_t value_string_len, calculated_number value, const char *units, int precision) {
+ if(unlikely(isnan(value) || isinf(value)))
+ value = 0.0;
+
+ char *separator = "";
+ if(unlikely(isalnum(*units)))
+ separator = " ";
+
+ if(precision < 0) {
+ int len, lstop = 0, trim_zeros = 1;
+
+ calculated_number abs = value;
+ if(isless(value, 0)) {
+ lstop = 1;
+ abs = calculated_number_fabs(value);
+ }
+
+ if(isgreaterequal(abs, 1000)) {
+ len = snprintfz(value_string, value_string_len, "%0.0" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
+ trim_zeros = 0;
+ }
+ else if(isgreaterequal(abs, 10)) len = snprintfz(value_string, value_string_len, "%0.1" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
+ else if(isgreaterequal(abs, 1)) len = snprintfz(value_string, value_string_len, "%0.2" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
+ else if(isgreaterequal(abs, 0.1)) len = snprintfz(value_string, value_string_len, "%0.2" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
+ else if(isgreaterequal(abs, 0.01)) len = snprintfz(value_string, value_string_len, "%0.4" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
+ else if(isgreaterequal(abs, 0.001)) len = snprintfz(value_string, value_string_len, "%0.5" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
+ else if(isgreaterequal(abs, 0.0001)) len = snprintfz(value_string, value_string_len, "%0.6" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
+ else len = snprintfz(value_string, value_string_len, "%0.7" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
+
+ if(unlikely(trim_zeros)) {
+ int l;
+ // remove trailing zeros from the decimal part
+ for(l = len - 1; l > lstop; l--) {
+ if(likely(value_string[l] == '0')) {
+ value_string[l] = '\0';
+ len--;
+ }
+
+ else if(unlikely(value_string[l] == '.')) {
+ value_string[l] = '\0';
+ len--;
+ break;
+ }
+
+ else
+ break;
+ }
+ }
+
+ if(unlikely(len <= 0)) len = 1;
+ snprintfz(&value_string[len], value_string_len - len, "%s%s", separator, units);
+ }
+ else {
+ if(precision > 50) precision = 50;
+ snprintfz(value_string, value_string_len, "%0.*" LONG_DOUBLE_MODIFIER "%s%s", precision, (LONG_DOUBLE) value, separator, units);
+ }
+
+ return value_string;
+}
+
+typedef enum badge_units_format {
+ UNITS_FORMAT_NONE,
+ UNITS_FORMAT_SECONDS,
+ UNITS_FORMAT_SECONDS_AGO,
+ UNITS_FORMAT_MINUTES,
+ UNITS_FORMAT_MINUTES_AGO,
+ UNITS_FORMAT_HOURS,
+ UNITS_FORMAT_HOURS_AGO,
+ UNITS_FORMAT_ONOFF,
+ UNITS_FORMAT_UPDOWN,
+ UNITS_FORMAT_OKERROR,
+ UNITS_FORMAT_OKFAILED,
+ UNITS_FORMAT_EMPTY,
+ UNITS_FORMAT_PERCENT
+} UNITS_FORMAT;
+
+
+static struct units_formatter {
+ const char *units;
+ uint32_t hash;
+ UNITS_FORMAT format;
+} badge_units_formatters[] = {
+ { "seconds", 0, UNITS_FORMAT_SECONDS },
+ { "seconds ago", 0, UNITS_FORMAT_SECONDS_AGO },
+ { "minutes", 0, UNITS_FORMAT_MINUTES },
+ { "minutes ago", 0, UNITS_FORMAT_MINUTES_AGO },
+ { "hours", 0, UNITS_FORMAT_HOURS },
+ { "hours ago", 0, UNITS_FORMAT_HOURS_AGO },
+ { "on/off", 0, UNITS_FORMAT_ONOFF },
+ { "on-off", 0, UNITS_FORMAT_ONOFF },
+ { "onoff", 0, UNITS_FORMAT_ONOFF },
+ { "up/down", 0, UNITS_FORMAT_UPDOWN },
+ { "up-down", 0, UNITS_FORMAT_UPDOWN },
+ { "updown", 0, UNITS_FORMAT_UPDOWN },
+ { "ok/error", 0, UNITS_FORMAT_OKERROR },
+ { "ok-error", 0, UNITS_FORMAT_OKERROR },
+ { "okerror", 0, UNITS_FORMAT_OKERROR },
+ { "ok/failed", 0, UNITS_FORMAT_OKFAILED },
+ { "ok-failed", 0, UNITS_FORMAT_OKFAILED },
+ { "okfailed", 0, UNITS_FORMAT_OKFAILED },
+ { "empty", 0, UNITS_FORMAT_EMPTY },
+ { "null", 0, UNITS_FORMAT_EMPTY },
+ { "percentage", 0, UNITS_FORMAT_PERCENT },
+ { "percent", 0, UNITS_FORMAT_PERCENT },
+ { "pcent", 0, UNITS_FORMAT_PERCENT },
+
+ // terminator
+ { NULL, 0, UNITS_FORMAT_NONE }
+};
+
+inline char *format_value_and_unit(char *value_string, size_t value_string_len, calculated_number value, const char *units, int precision) {
+ static int max = -1;
+ int i;
+
+ if(unlikely(max == -1)) {
+ for(i = 0; badge_units_formatters[i].units; i++)
+ badge_units_formatters[i].hash = simple_hash(badge_units_formatters[i].units);
+
+ max = i;
+ }
+
+ if(unlikely(!units)) units = "";
+ uint32_t hash_units = simple_hash(units);
+
+ UNITS_FORMAT format = UNITS_FORMAT_NONE;
+ for(i = 0; i < max; i++) {
+ struct units_formatter *ptr = &badge_units_formatters[i];
+
+ if(hash_units == ptr->hash && !strcmp(units, ptr->units)) {
+ format = ptr->format;
+ break;
+ }
+ }
+
+ if(unlikely(format == UNITS_FORMAT_SECONDS || format == UNITS_FORMAT_SECONDS_AGO)) {
+ if(value == 0.0) {
+ snprintfz(value_string, value_string_len, "%s", "now");
+ return value_string;
+ }
+ else if(isnan(value) || isinf(value)) {
+ snprintfz(value_string, value_string_len, "%s", "undefined");
+ return value_string;
+ }
+
+ const char *suffix = (format == UNITS_FORMAT_SECONDS_AGO)?" ago":"";
+
+ size_t s = (size_t)value;
+ size_t d = s / 86400;
+ s = s % 86400;
+
+ size_t h = s / 3600;
+ s = s % 3600;
+
+ size_t m = s / 60;
+ s = s % 60;
+
+ if(d)
+ snprintfz(value_string, value_string_len, "%zu %s %02zu:%02zu:%02zu%s", d, (d == 1)?"day":"days", h, m, s, suffix);
+ else
+ snprintfz(value_string, value_string_len, "%02zu:%02zu:%02zu%s", h, m, s, suffix);
+
+ return value_string;
+ }
+
+ else if(unlikely(format == UNITS_FORMAT_MINUTES || format == UNITS_FORMAT_MINUTES_AGO)) {
+ if(value == 0.0) {
+ snprintfz(value_string, value_string_len, "%s", "now");
+ return value_string;
+ }
+ else if(isnan(value) || isinf(value)) {
+ snprintfz(value_string, value_string_len, "%s", "undefined");
+ return value_string;
+ }
+
+ const char *suffix = (format == UNITS_FORMAT_MINUTES_AGO)?" ago":"";
+
+ size_t m = (size_t)value;
+ size_t d = m / (60 * 24);
+ m = m % (60 * 24);
+
+ size_t h = m / 60;
+ m = m % 60;
+
+ if(d)
+ snprintfz(value_string, value_string_len, "%zud %02zuh %02zum%s", d, h, m, suffix);
+ else
+ snprintfz(value_string, value_string_len, "%zuh %zum%s", h, m, suffix);
+
+ return value_string;
+ }
+
+ else if(unlikely(format == UNITS_FORMAT_HOURS || format == UNITS_FORMAT_HOURS_AGO)) {
+ if(value == 0.0) {
+ snprintfz(value_string, value_string_len, "%s", "now");
+ return value_string;
+ }
+ else if(isnan(value) || isinf(value)) {
+ snprintfz(value_string, value_string_len, "%s", "undefined");
+ return value_string;
+ }
+
+ const char *suffix = (format == UNITS_FORMAT_HOURS_AGO)?" ago":"";
+
+ size_t h = (size_t)value;
+ size_t d = h / 24;
+ h = h % 24;
+
+ if(d)
+ snprintfz(value_string, value_string_len, "%zud %zuh%s", d, h, suffix);
+ else
+ snprintfz(value_string, value_string_len, "%zuh%s", h, suffix);
+
+ return value_string;
+ }
+
+ else if(unlikely(format == UNITS_FORMAT_ONOFF)) {
+ snprintfz(value_string, value_string_len, "%s", (value != 0.0)?"on":"off");
+ return value_string;
+ }
+
+ else if(unlikely(format == UNITS_FORMAT_UPDOWN)) {
+ snprintfz(value_string, value_string_len, "%s", (value != 0.0)?"up":"down");
+ return value_string;
+ }
+
+ else if(unlikely(format == UNITS_FORMAT_OKERROR)) {
+ snprintfz(value_string, value_string_len, "%s", (value != 0.0)?"ok":"error");
+ return value_string;
+ }
+
+ else if(unlikely(format == UNITS_FORMAT_OKFAILED)) {
+ snprintfz(value_string, value_string_len, "%s", (value != 0.0)?"ok":"failed");
+ return value_string;
+ }
+
+ else if(unlikely(format == UNITS_FORMAT_EMPTY))
+ units = "";
+
+ else if(unlikely(format == UNITS_FORMAT_PERCENT))
+ units = "%";
+
+ if(unlikely(isnan(value) || isinf(value))) {
+ strcpy(value_string, "-");
+ return value_string;
+ }
+
+ return format_value_with_precision_and_unit(value_string, value_string_len, value, units, precision);
+}
+
+static struct badge_color {
+ const char *name;
+ uint32_t hash;
+ const char *color;
+} badge_colors[] = {
+
+ // colors from:
+ // https://github.com/badges/shields/blob/master/colorscheme.json
+
+ { "brightgreen", 0, "#4c1" },
+ { "green", 0, "#97CA00" },
+ { "yellow", 0, "#dfb317" },
+ { "yellowgreen", 0, "#a4a61d" },
+ { "orange", 0, "#fe7d37" },
+ { "red", 0, "#e05d44" },
+ { "blue", 0, "#007ec6" },
+ { "grey", 0, "#555" },
+ { "gray", 0, "#555" },
+ { "lightgrey", 0, "#9f9f9f" },
+ { "lightgray", 0, "#9f9f9f" },
+
+ // terminator
+ { NULL, 0, NULL }
+};
+
+static inline const char *color_map(const char *color) {
+ static int max = -1;
+ int i;
+
+ if(unlikely(max == -1)) {
+ for(i = 0; badge_colors[i].name ;i++)
+ badge_colors[i].hash = simple_hash(badge_colors[i].name);
+
+ max = i;
+ }
+
+ uint32_t hash = simple_hash(color);
+
+ for(i = 0; i < max; i++) {
+ struct badge_color *ptr = &badge_colors[i];
+
+ if(hash == ptr->hash && !strcmp(color, ptr->name))
+ return ptr->color;
+ }
+
+ return color;
+}
+
+typedef enum color_comparison {
+ COLOR_COMPARE_EQUAL,
+ COLOR_COMPARE_NOTEQUAL,
+ COLOR_COMPARE_LESS,
+ COLOR_COMPARE_LESSEQUAL,
+ COLOR_COMPARE_GREATER,
+ COLOR_COMPARE_GREATEREQUAL,
+} BADGE_COLOR_COMPARISON;
+
+static inline void calc_colorz(const char *color, char *final, size_t len, calculated_number value) {
+ if(isnan(value) || isinf(value))
+ value = NAN;
+
+ char color_buffer[256 + 1] = "";
+ char value_buffer[256 + 1] = "";
+ BADGE_COLOR_COMPARISON comparison = COLOR_COMPARE_GREATER;
+
+ // example input:
+ // color<max|color>min|color:null...
+
+ const char *c = color;
+ while(*c) {
+ char *dc = color_buffer, *dv = NULL;
+ size_t ci = 0, vi = 0;
+
+ const char *t = c;
+
+ while(*t && *t != '|') {
+ switch(*t) {
+ case '!':
+ if(t[1] == '=') t++;
+ comparison = COLOR_COMPARE_NOTEQUAL;
+ dv = value_buffer;
+ break;
+
+ case '=':
+ case ':':
+ comparison = COLOR_COMPARE_EQUAL;
+ dv = value_buffer;
+ break;
+
+ case '}':
+ case ')':
+ case '>':
+ if(t[1] == '=') {
+ comparison = COLOR_COMPARE_GREATEREQUAL;
+ t++;
+ }
+ else
+ comparison = COLOR_COMPARE_GREATER;
+ dv = value_buffer;
+ break;
+
+ case '{':
+ case '(':
+ case '<':
+ if(t[1] == '=') {
+ comparison = COLOR_COMPARE_LESSEQUAL;
+ t++;
+ }
+ else if(t[1] == '>' || t[1] == ')' || t[1] == '}') {
+ comparison = COLOR_COMPARE_NOTEQUAL;
+ t++;
+ }
+ else
+ comparison = COLOR_COMPARE_LESS;
+ dv = value_buffer;
+ break;
+
+ default:
+ if(dv) {
+ if(vi < 256) {
+ vi++;
+ *dv++ = *t;
+ }
+ }
+ else {
+ if(ci < 256) {
+ ci++;
+ *dc++ = *t;
+ }
+ }
+ break;
+ }
+
+ t++;
+ }
+
+ // prepare for next iteration
+ if(*t == '|') t++;
+ c = t;
+
+ // do the math
+ *dc = '\0';
+ if(dv) {
+ *dv = '\0';
+ calculated_number v;
+
+ if(!*value_buffer || !strcmp(value_buffer, "null")) {
+ v = NAN;
+ }
+ else {
+ v = str2l(value_buffer);
+ if(isnan(v) || isinf(v))
+ v = NAN;
+ }
+
+ if(unlikely(isnan(value) || isnan(v))) {
+ if(isnan(value) && isnan(v))
+ break;
+ }
+ else {
+ if (unlikely(comparison == COLOR_COMPARE_LESS && isless(value, v))) break;
+ else if (unlikely(comparison == COLOR_COMPARE_LESSEQUAL && islessequal(value, v))) break;
+ else if (unlikely(comparison == COLOR_COMPARE_GREATER && isgreater(value, v))) break;
+ else if (unlikely(comparison == COLOR_COMPARE_GREATEREQUAL && isgreaterequal(value, v))) break;
+ else if (unlikely(comparison == COLOR_COMPARE_EQUAL && !islessgreater(value, v))) break;
+ else if (unlikely(comparison == COLOR_COMPARE_NOTEQUAL && islessgreater(value, v))) break;
+ }
+ }
+ else
+ break;
+ }
+
+ const char *b;
+ if(color_buffer[0])
+ b = color_buffer;
+ else
+ b = color;
+
+ strncpyz(final, b, len);
+}
+
+// value + units
+#define VALUE_STRING_SIZE 100
+
+// label
+#define LABEL_STRING_SIZE 200
+
+// colors
+#define COLOR_STRING_SIZE 100
+
+void buffer_svg(BUFFER *wb, const char *label, calculated_number value, const char *units, const char *label_color, const char *value_color, int precision, int scale, uint32_t options) {
+ char label_buffer[LABEL_STRING_SIZE + 1]
+ , value_color_buffer[COLOR_STRING_SIZE + 1]
+ , value_string[VALUE_STRING_SIZE + 1]
+ , label_escaped[LABEL_STRING_SIZE + 1]
+ , value_escaped[VALUE_STRING_SIZE + 1]
+ , label_color_escaped[COLOR_STRING_SIZE + 1]
+ , value_color_escaped[COLOR_STRING_SIZE + 1];
+
+ double label_width, value_width, total_width, height = 20.0, font_size = 11.0, text_offset = 5.8, round_corner = 3.0;
+
+ if(scale < 100) scale = 100;
+
+ if(unlikely(!label_color || !*label_color))
+ label_color = "#555";
+
+ if(unlikely(!value_color || !*value_color))
+ value_color = (isnan(value) || isinf(value))?"#999":"#4c1";
+
+ calc_colorz(value_color, value_color_buffer, COLOR_STRING_SIZE, value);
+ format_value_and_unit(value_string, VALUE_STRING_SIZE, (options & RRDR_OPTION_DISPLAY_ABS)?calculated_number_fabs(value):value, units, precision);
+
+ // we need to copy the label, since verdana11_width may write to it
+ strncpyz(label_buffer, label, LABEL_STRING_SIZE);
+
+ label_width = verdana11_width(label_buffer) + (BADGE_HORIZONTAL_PADDING * 2);
+ value_width = verdana11_width(value_string) + (BADGE_HORIZONTAL_PADDING * 2);
+ total_width = label_width + value_width;
+
+ escape_xmlz(label_escaped, label_buffer, LABEL_STRING_SIZE);
+ escape_xmlz(value_escaped, value_string, VALUE_STRING_SIZE);
+ escape_xmlz(label_color_escaped, color_map(label_color), COLOR_STRING_SIZE);
+ escape_xmlz(value_color_escaped, color_map(value_color_buffer), COLOR_STRING_SIZE);
+
+ wb->contenttype = CT_IMAGE_SVG_XML;
+
+ total_width = total_width * scale / 100.0;
+ height = height * scale / 100.0;
+ font_size = font_size * scale / 100.0;
+ text_offset = text_offset * scale / 100.0;
+ label_width = label_width * scale / 100.0;
+ value_width = value_width * scale / 100.0;
+ round_corner = round_corner * scale / 100.0;
+
+ // svg template from:
+ // https://raw.githubusercontent.com/badges/shields/master/templates/flat-template.svg
+ buffer_sprintf(wb,
+ "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"%0.2f\" height=\"%0.2f\">"
+ "<linearGradient id=\"smooth\" x2=\"0\" y2=\"100%%\">"
+ "<stop offset=\"0\" stop-color=\"#bbb\" stop-opacity=\".1\"/>"
+ "<stop offset=\"1\" stop-opacity=\".1\"/>"
+ "</linearGradient>"
+ "<mask id=\"round\">"
+ "<rect width=\"%0.2f\" height=\"%0.2f\" rx=\"%0.2f\" fill=\"#fff\"/>"
+ "</mask>"
+ "<g mask=\"url(#round)\">"
+ "<rect width=\"%0.2f\" height=\"%0.2f\" fill=\"%s\"/>"
+ "<rect x=\"%0.2f\" width=\"%0.2f\" height=\"%0.2f\" fill=\"%s\"/>"
+ "<rect width=\"%0.2f\" height=\"%0.2f\" fill=\"url(#smooth)\"/>"
+ "</g>"
+ "<g fill=\"#fff\" text-anchor=\"middle\" font-family=\"DejaVu Sans,Verdana,Geneva,sans-serif\" font-size=\"%0.2f\">"
+ "<text x=\"%0.2f\" y=\"%0.0f\" fill=\"#010101\" fill-opacity=\".3\">%s</text>"
+ "<text x=\"%0.2f\" y=\"%0.0f\">%s</text>"
+ "<text x=\"%0.2f\" y=\"%0.0f\" fill=\"#010101\" fill-opacity=\".3\">%s</text>"
+ "<text x=\"%0.2f\" y=\"%0.0f\">%s</text>"
+ "</g>"
+ "</svg>",
+ total_width, height,
+ total_width, height, round_corner,
+ label_width, height, label_color_escaped,
+ label_width, value_width, height, value_color_escaped,
+ total_width, height,
+ font_size,
+ label_width / 2, ceil(height - text_offset), label_escaped,
+ label_width / 2, ceil(height - text_offset - 1.0), label_escaped,
+ label_width + value_width / 2 -1, ceil(height - text_offset), value_escaped,
+ label_width + value_width / 2 -1, ceil(height - text_offset - 1.0), value_escaped);
+}
+
+int web_client_api_request_v1_badge(RRDHOST *host, struct web_client *w, char *url) {
+ int ret = 400;
+ buffer_flush(w->response.data);
+
+ BUFFER *dimensions = NULL;
+
+ const char *chart = NULL
+ , *before_str = NULL
+ , *after_str = NULL
+ , *points_str = NULL
+ , *multiply_str = NULL
+ , *divide_str = NULL
+ , *label = NULL
+ , *units = NULL
+ , *label_color = NULL
+ , *value_color = NULL
+ , *refresh_str = NULL
+ , *precision_str = NULL
+ , *scale_str = NULL
+ , *alarm = NULL;
+
+ int group = RRDR_GROUPING_AVERAGE;
+ uint32_t options = 0x00000000;
+
+ while(url) {
+ char *value = mystrsep(&url, "/?&");
+ if(!value || !*value) continue;
+
+ char *name = mystrsep(&value, "=");
+ if(!name || !*name) continue;
+ if(!value || !*value) continue;
+
+ debug(D_WEB_CLIENT, "%llu: API v1 badge.svg query param '%s' with value '%s'", w->id, name, value);
+
+ // name and value are now the parameters
+ // they are not null and not empty
+
+ if(!strcmp(name, "chart")) chart = value;
+ else if(!strcmp(name, "dimension") || !strcmp(name, "dim") || !strcmp(name, "dimensions") || !strcmp(name, "dims")) {
+ if(!dimensions)
+ dimensions = buffer_create(100);
+
+ buffer_strcat(dimensions, "|");
+ buffer_strcat(dimensions, value);
+ }
+ else if(!strcmp(name, "after")) after_str = value;
+ else if(!strcmp(name, "before")) before_str = value;
+ else if(!strcmp(name, "points")) points_str = value;
+ else if(!strcmp(name, "group")) {
+ group = web_client_api_request_v1_data_group(value, RRDR_GROUPING_AVERAGE);
+ }
+ else if(!strcmp(name, "options")) {
+ options |= web_client_api_request_v1_data_options(value);
+ }
+ else if(!strcmp(name, "label")) label = value;
+ else if(!strcmp(name, "units")) units = value;
+ else if(!strcmp(name, "label_color")) label_color = value;
+ else if(!strcmp(name, "value_color")) value_color = value;
+ else if(!strcmp(name, "multiply")) multiply_str = value;
+ else if(!strcmp(name, "divide")) divide_str = value;
+ else if(!strcmp(name, "refresh")) refresh_str = value;
+ else if(!strcmp(name, "precision")) precision_str = value;
+ else if(!strcmp(name, "scale")) scale_str = value;
+ else if(!strcmp(name, "alarm")) alarm = value;
+ }
+
+ if(!chart || !*chart) {
+ buffer_no_cacheable(w->response.data);
+ buffer_sprintf(w->response.data, "No chart id is given at the request.");
+ goto cleanup;
+ }
+
+ int scale = (scale_str && *scale_str)?str2i(scale_str):100;
+
+ RRDSET *st = rrdset_find(host, chart);
+ if(!st) st = rrdset_find_byname(host, chart);
+ if(!st) {
+ buffer_no_cacheable(w->response.data);
+ buffer_svg(w->response.data, "chart not found", NAN, "", NULL, NULL, -1, scale, 0);
+ ret = 200;
+ goto cleanup;
+ }
+ st->last_accessed_time = now_realtime_sec();
+
+ RRDCALC *rc = NULL;
+ if(alarm) {
+ rc = rrdcalc_find(st, alarm);
+ if (!rc) {
+ buffer_no_cacheable(w->response.data);
+ buffer_svg(w->response.data, "alarm not found", NAN, "", NULL, NULL, -1, scale, 0);
+ ret = 200;
+ goto cleanup;
+ }
+ }
+
+ long long multiply = (multiply_str && *multiply_str )?str2l(multiply_str):1;
+ long long divide = (divide_str && *divide_str )?str2l(divide_str):1;
+ long long before = (before_str && *before_str )?str2l(before_str):0;
+ long long after = (after_str && *after_str )?str2l(after_str):-st->update_every;
+ int points = (points_str && *points_str )?str2i(points_str):1;
+ int precision = (precision_str && *precision_str)?str2i(precision_str):-1;
+
+ if(!multiply) multiply = 1;
+ if(!divide) divide = 1;
+
+ int refresh = 0;
+ if(refresh_str && *refresh_str) {
+ if(!strcmp(refresh_str, "auto")) {
+ if(rc) refresh = rc->update_every;
+ else if(options & RRDR_OPTION_NOT_ALIGNED)
+ refresh = st->update_every;
+ else {
+ refresh = (int)(before - after);
+ if(refresh < 0) refresh = -refresh;
+ }
+ }
+ else {
+ refresh = str2i(refresh_str);
+ if(refresh < 0) refresh = -refresh;
+ }
+ }
+
+ if(!label) {
+ if(alarm) {
+ char *s = (char *)alarm;
+ while(*s) {
+ if(*s == '_') *s = ' ';
+ s++;
+ }
+ label = alarm;
+ }
+ else if(dimensions) {
+ const char *dim = buffer_tostring(dimensions);
+ if(*dim == '|') dim++;
+ label = dim;
+ }
+ else
+ label = st->name;
+ }
+ if(!units) {
+ if(alarm) {
+ if(rc->units)
+ units = rc->units;
+ else
+ units = "";
+ }
+ else if(options & RRDR_OPTION_PERCENTAGE)
+ units = "%";
+ else
+ units = st->units;
+ }
+
+ 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'"
+ , w->id
+ , chart
+ , alarm?alarm:""
+ , (dimensions)?buffer_tostring(dimensions):""
+ , after
+ , before
+ , points
+ , group
+ , options
+ );
+
+ if(rc) {
+ if (refresh > 0) {
+ buffer_sprintf(w->response.header, "Refresh: %d\r\n", refresh);
+ w->response.data->expires = now_realtime_sec() + refresh;
+ }
+ else buffer_no_cacheable(w->response.data);
+
+ if(!value_color) {
+ switch(rc->status) {
+ case RRDCALC_STATUS_CRITICAL:
+ value_color = "red";
+ break;
+
+ case RRDCALC_STATUS_WARNING:
+ value_color = "orange";
+ break;
+
+ case RRDCALC_STATUS_CLEAR:
+ value_color = "brightgreen";
+ break;
+
+ case RRDCALC_STATUS_UNDEFINED:
+ value_color = "lightgrey";
+ break;
+
+ case RRDCALC_STATUS_UNINITIALIZED:
+ value_color = "#000";
+ break;
+
+ default:
+ value_color = "grey";
+ break;
+ }
+ }
+
+ buffer_svg(w->response.data,
+ label,
+ (isnan(rc->value)||isinf(rc->value)) ? rc->value : rc->value * multiply / divide,
+ units,
+ label_color,
+ value_color,
+ precision,
+ scale,
+ options
+ );
+ ret = 200;
+ }
+ else {
+ time_t latest_timestamp = 0;
+ int value_is_null = 1;
+ calculated_number n = NAN;
+ ret = 500;
+
+ // if the collected value is too old, don't calculate its value
+ if (rrdset_last_entry_t(st) >= (now_realtime_sec() - (st->update_every * st->gap_when_lost_iterations_above)))
+ ret = rrdset2value_api_v1(st, w->response.data, &n, (dimensions) ? buffer_tostring(dimensions) : NULL
+ , points, after, before, group, 0, options, NULL, &latest_timestamp, &value_is_null);
+
+ // if the value cannot be calculated, show empty badge
+ if (ret != 200) {
+ buffer_no_cacheable(w->response.data);
+ value_is_null = 1;
+ n = 0;
+ ret = 200;
+ }
+ else if (refresh > 0) {
+ buffer_sprintf(w->response.header, "Refresh: %d\r\n", refresh);
+ w->response.data->expires = now_realtime_sec() + refresh;
+ }
+ else buffer_no_cacheable(w->response.data);
+
+ // render the badge
+ buffer_svg(w->response.data,
+ label,
+ (value_is_null)?NAN:(n * multiply / divide),
+ units,
+ label_color,
+ value_color,
+ precision,
+ scale,
+ options
+ );
+ }
+
+ cleanup:
+ buffer_free(dimensions);
+ return ret;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-01 17:19:14 +0000