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helpers: rework new random-functions to get the code more reuseable

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* introduceand use LOGODIR_TMP (storage dir for webchannel logos)


Origin commit data
------------------
Commit: 2d3f66aa39
Author: vanhofen <vanhofen@gmx.de>
Date: 2018-09-18 (Tue, 18 Sep 2018)

Origin message was:
------------------
- helpers: rework new random-functions to get the code more reuseable

* introduceand use LOGODIR_TMP (storage dir for webchannel logos)
This commit is contained in:
vanhofen
2018-09-18 21:18:40 +02:00
parent 7973fb998e
commit c48a115366
7 changed files with 33 additions and 29 deletions
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30
src/system/helpers.cpp
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@@ -1714,32 +1714,32 @@ bool utf8_check_is_valid(const std::string &str)
return true;
}
std::string genTmpName(std::string suffix,unsigned int length)
std::string randomString(unsigned int length)
{
std::string random = "";
const char alphanum[] =
"0123456789"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz";
int stringLength = sizeof(alphanum) - 1;
std::string Str;
unsigned int i;
Str.append("/tmp/");
for( i = 0; i < length; ++i)
{
Str += alphanum[rand() % stringLength];
}
Str += ".";
Str += suffix;
return Str;
for(i = 0; i < length; ++i)
random += alphanum[rand() % (sizeof(alphanum) - 1)];
return random;
}
std::string dlTmpName(std::string url)
std::string randomFile(std::string suffix, std::string directory, unsigned int length)
{
mkdir(directory.c_str(), 0755);
return directory + "/" + randomString(length) + "." + suffix;
}
std::string downloadUrlToRandomFile(std::string url, std::string directory, unsigned int length)
{
if (strstr(url.c_str(), "://"))
{
std::string tmpname = genTmpName(url.substr(url.find_last_of(".")+1),10);
if (downloadUrl(url,tmpname))
url = tmpname;
std::string file = randomFile(url.substr(url.find_last_of(".") + 1), directory, length);
if (downloadUrl(url, file))
return file;
}
return url;
}