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Fix http url path and component's coding (#3237 #3181)

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This commit is contained in:
sandro-qiang
2024-01-28 19:18:36 +08:00
committed by GitHub
parent cfe9a31ca6
commit ceae040a7a
8 changed files with 130 additions and 10 deletions
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90
src/Common/strCoding.cpp
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@@ -69,6 +69,40 @@ string strCoding::UrlEncode(const string &str) {
return out;
}
string strCoding::UrlEncodePath(const string &str) {
const char *dont_escape = "!#&'*+:=?@/._-$,;~()";
string out;
size_t len = str.size();
for (size_t i = 0; i < len; ++i) {
char ch = str[i];
if (isalnum((uint8_t) ch) || strchr(dont_escape, (uint8_t) ch) != NULL) {
out.push_back(ch);
} else {
char buf[4];
sprintf(buf, "%%%X%X", (uint8_t) ch >> 4, (uint8_t) ch & 0x0F);
out.append(buf);
}
}
return out;
}
string strCoding::UrlEncodeComponent(const string &str) {
const char *dont_escape = "!'()*-._~";
string out;
size_t len = str.size();
for (size_t i = 0; i < len; ++i) {
char ch = str[i];
if (isalnum((uint8_t) ch) || strchr(dont_escape, (uint8_t) ch) != NULL) {
out.push_back(ch);
} else {
char buf[4];
sprintf(buf, "%%%X%X", (uint8_t) ch >> 4, (uint8_t) ch & 0x0F);
out.append(buf);
}
}
return out;
}
string strCoding::UrlDecode(const string &str) {
string output;
size_t i = 0, len = str.length();
@@ -95,6 +129,62 @@ string strCoding::UrlDecode(const string &str) {
return output;
}
string strCoding::UrlDecodePath(const string &str) {
const char *dont_unescape = "#$&+,/:;=?@";
string output;
size_t i = 0, len = str.length();
while (i < len) {
if (str[i] == '%') {
if (i + 3 > len) {
// %后面必须还有两个字节才会反转义
output.append(str, i, len - i);
break;
}
char ch = HexStrToBin(&(str[i + 1]));
if (ch == -1 || strchr(dont_unescape, (unsigned char)ch) != NULL) {
// %后面两个字节不是16进制字符串，转义失败；或者转义出来可能会造成url包含非path部分，比如#?，说明提交的是非法拼接的url；直接拼接3个原始字符
output.append(str, i, 3);
} else {
output += ch;
}
i += 3;
} else {
output += str[i];
++i;
}
}
return output;
}
std::string strCoding::UrlDecodeComponent(const std::string &str) {
string output;
size_t i = 0, len = str.length();
while (i < len) {
if (str[i] == '%') {
if (i + 3 > len) {
// %后面必须还有两个字节才会反转义
output.append(str, i, len - i);
break;
}
char ch = HexStrToBin(&(str[i + 1]));
if (ch == -1) {
// %后面两个字节不是16进制字符串，转义失败；直接拼接3个原始字符
output.append(str, i, 3);
} else {
output += ch;
}
i += 3;
} else if (str[i] == '+') {
output += ' ';
++i;
} else {
output += str[i];
++i;
}
}
return output;
}
#if 0
#include "Util/onceToken.h"
static toolkit::onceToken token([]() {