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[uacomment] Sanitize per BIP-0014

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* SanitizeString() can be requested to be more strict
* Throw error when SanitizeString() changes uacomments
* Fix tests
This commit is contained in:
MarcoFalke
2015-09-09 14:24:56 +02:00
parent 536207f316
commit 1c1b1b315f
4 changed files with 36 additions and 12 deletions
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17
src/utilstrencodings.cpp
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@@ -14,17 +14,20 @@
using namespace std;
string SanitizeString(const string& str)
static const string CHARS_ALPHA_NUM = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
static const string SAFE_CHARS[] =
{
CHARS_ALPHA_NUM + " .,;_/:?@()", // SAFE_CHARS_DEFAULT
CHARS_ALPHA_NUM + " .,;_?@" // SAFE_CHARS_UA_COMMENT
};
string SanitizeString(const string& str, int rule)
{
/**
* safeChars chosen to allow simple messages/URLs/email addresses, but avoid anything
* even possibly remotely dangerous like & or >
*/
static string safeChars("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890 .,;_/:?@()");
string strResult;
for (std::string::size_type i = 0; i < str.size(); i++)
{
if (safeChars.find(str[i]) != std::string::npos)
if (SAFE_CHARS[rule].find(str[i]) != std::string::npos)
strResult.push_back(str[i]);
}
return strResult;