db0f9732b2
custom board driver ma120x0 is broken esp dsp is now IDF managed component mdns is now IDF managed component Signed-off-by: Karl Osterseher <karli_o@gmx.at>
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
#include <ctype.h>
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#include <string.h>
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#include "audio_error.h"
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#include "audio_mem.h"
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#include "esp_log.h"
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static char *TAG = "AUDIO_URL";
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static unsigned char char_to_hex(unsigned char x) {
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return x > 9 ? x + 0x37 : x + 0x30;
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}
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char *audio_url_encode(const char *str) {
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int out_len = (strlen(str) + 1) * 3;
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char *final = audio_malloc(out_len);
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AUDIO_MEM_CHECK(TAG, final, return NULL);
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char *tmp = final;
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for (size_t i = 0; i < strlen(str); i++) {
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if (isalnum((unsigned char)str[i]) || (str[i] == '-') || (str[i] == '_') ||
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(str[i] == '.') || (str[i] == '!') || (str[i] == '@') ||
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(str[i] == '#') || (str[i] == '$') || (str[i] == '&') ||
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(str[i] == '*') || (str[i] == '(') || (str[i] == ')') ||
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(str[i] == '=') || (str[i] == ':') || (str[i] == '/') ||
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(str[i] == ',') || (str[i] == ';') || (str[i] == '?') ||
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(str[i] == '+') || (str[i] == '\'') || (str[i] == '~')) {
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*final++ = str[i];
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} else {
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*final++ = '%';
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*final++ = char_to_hex((unsigned char)str[i] >> 4);
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*final++ = char_to_hex((unsigned char)str[i] % 16);
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}
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}
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*final = 0;
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return tmp;
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}
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char *audio_url_decode(const char *str) {
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char *final = audio_malloc(strlen(str) + 1);
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AUDIO_MEM_CHECK(TAG, final, return NULL);
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char *tmp = final;
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while (*str) {
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if (*str == '%') {
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char buffer[3] = {str[1], str[2], 0};
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*final++ = strtol(buffer, NULL, 16);
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str += 3;
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} else {
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*final++ = *str++;
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}
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}
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*final = 0;
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return tmp;
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}
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