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65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
#include <re2/re2.h>
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#include <Poco/URI.h>
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#include <Poco/Util/AbstractConfiguration.h>
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#include <Formats/FormatFactory.h>
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#include <Common/RemoteHostFilter.h>
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#include <Common/StringUtils/StringUtils.h>
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#include <Common/Exception.h>
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#include <IO/WriteHelpers.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int UNACCEPTABLE_URL;
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}
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void RemoteHostFilter::checkURL(const Poco::URI & uri) const
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{
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if (!checkForDirectEntry(uri.getHost()) &&
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!checkForDirectEntry(uri.getHost() + ":" + toString(uri.getPort())))
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throw Exception("URL \"" + uri.toString() + "\" is not allowed in config.xml", ErrorCodes::UNACCEPTABLE_URL);
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}
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void RemoteHostFilter::checkHostAndPort(const std::string & host, const std::string & port) const
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{
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if (!checkForDirectEntry(host) &&
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!checkForDirectEntry(host + ":" + port))
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throw Exception("URL \"" + host + ":" + port + "\" is not allowed in config.xml", ErrorCodes::UNACCEPTABLE_URL);
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}
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void RemoteHostFilter::setValuesFromConfig(const Poco::Util::AbstractConfiguration & config)
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{
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if (config.has("remote_url_allow_hosts"))
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{
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std::vector<std::string> keys;
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config.keys("remote_url_allow_hosts", keys);
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for (const auto & key : keys)
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{
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if (startsWith(key, "host_regexp"))
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regexp_hosts.push_back(config.getString("remote_url_allow_hosts." + key));
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else if (startsWith(key, "host"))
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primary_hosts.insert(config.getString("remote_url_allow_hosts." + key));
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}
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is_allow_by_default = false;
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}
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}
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bool RemoteHostFilter::checkForDirectEntry(const std::string & str) const
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{
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if (!primary_hosts.empty() || !regexp_hosts.empty())
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{
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if (primary_hosts.find(str) == primary_hosts.end())
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{
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for (const auto & regexp : regexp_hosts)
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if (re2::RE2::FullMatch(str, regexp))
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return true;
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return false;
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}
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return true;
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}
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return is_allow_by_default;
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}
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}
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