54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
// Library to simplify HTTP fetching on Arduino
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// (c) Copyright Arduino. 2019
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// Released under Apache License, version 2.0
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#include "URLEncoder.h"
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URLEncoderClass::URLEncoderClass()
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{
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}
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URLEncoderClass::~URLEncoderClass()
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{
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}
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String URLEncoderClass::encode(const char* str)
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{
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return encode(str, strlen(str));
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}
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String URLEncoderClass::encode(const String& str)
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{
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return encode(str.c_str(), str.length());
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}
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String URLEncoderClass::encode(const char* str, int length)
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{
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String encoded;
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encoded.reserve(length);
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for (int i = 0; i < length; i++) {
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char c = str[i];
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const char HEX_DIGIT_MAPPER[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
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if (isAlphaNumeric(c) || (c == '-') || (c == '.') || (c == '_') || (c == '~')) {
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encoded += c;
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} else {
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char s[4];
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s[0] = '%';
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s[1] = HEX_DIGIT_MAPPER[(c >> 4) & 0xf];
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s[2] = HEX_DIGIT_MAPPER[(c & 0x0f)];
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s[3] = 0;
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encoded += s;
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}
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}
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return encoded;
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}
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URLEncoderClass URLEncoder;
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