Adding upstream version 2.13.6.upstream/2.13.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 373 insertions, 0 deletions

diff --git a/lib/cli/clicommand.cpp b/lib/cli/clicommand.cpp
new file mode 100644
index 0000000..cfdce09
--- /dev/null
+++ b/lib/cli/clicommand.cpp
@@ -0,0 +1,373 @@
+/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
+
+#include "cli/clicommand.hpp"
+#include "base/logger.hpp"
+#include "base/console.hpp"
+#include "base/type.hpp"
+#include "base/serializer.hpp"
+#include <boost/algorithm/string/join.hpp>
+#include <boost/algorithm/string/trim.hpp>
+#include <boost/program_options.hpp>
+#include <algorithm>
+#include <iostream>
+
+using namespace icinga;
+namespace po = boost::program_options;
+
+std::vector<String> icinga::GetBashCompletionSuggestions(const String& type, const String& word)
+{
+	std::vector<String> result;
+
+#ifndef _WIN32
+	String bashArg = "compgen -A " + Utility::EscapeShellArg(type) + " " + Utility::EscapeShellArg(word);
+	String cmd = "bash -c " + Utility::EscapeShellArg(bashArg);
+
+	FILE *fp = popen(cmd.CStr(), "r");
+
+	char line[4096];
+	while (fgets(line, sizeof(line), fp)) {
+		String wline = line;
+		boost::algorithm::trim_right_if(wline, boost::is_any_of("\r\n"));
+		result.push_back(wline);
+	}
+
+	pclose(fp);
+
+	/* Append a slash if there's only one suggestion and it's a directory */
+	if ((type == "file" || type == "directory") && result.size() == 1) {
+		String path = result[0];
+
+		struct stat statbuf;
+		if (lstat(path.CStr(), &statbuf) >= 0) {
+			if (S_ISDIR(statbuf.st_mode)) {
+				result.clear(),
+				result.push_back(path + "/");
+			}
+		}
+	}
+#endif /* _WIN32 */
+
+	return result;
+}
+
+std::vector<String> icinga::GetFieldCompletionSuggestions(const Type::Ptr& type, const String& word)
+{
+	std::vector<String> result;
+
+	for (int i = 0; i < type->GetFieldCount(); i++) {
+		Field field = type->GetFieldInfo(i);
+
+		if (field.Attributes & FANoUserView)
+			continue;
+
+		if (strcmp(field.TypeName, "int") != 0 && strcmp(field.TypeName, "double") != 0
+			&& strcmp(field.TypeName, "bool") != 0 && strcmp(field.TypeName, "String") != 0)
+			continue;
+
+		String fname = field.Name;
+
+		String suggestion = fname + "=";
+
+		if (suggestion.Find(word) == 0)
+			result.push_back(suggestion);
+	}
+
+	return result;
+}
+
+int CLICommand::GetMinArguments() const
+{
+	return 0;
+}
+
+int CLICommand::GetMaxArguments() const
+{
+	return GetMinArguments();
+}
+
+bool CLICommand::IsHidden() const
+{
+	return false;
+}
+
+bool CLICommand::IsDeprecated() const
+{
+	return false;
+}
+
+std::mutex& CLICommand::GetRegistryMutex()
+{
+	static std::mutex mtx;
+	return mtx;
+}
+
+std::map<std::vector<String>, CLICommand::Ptr>& CLICommand::GetRegistry()
+{
+	static std::map<std::vector<String>, CLICommand::Ptr> registry;
+	return registry;
+}
+
+CLICommand::Ptr CLICommand::GetByName(const std::vector<String>& name)
+{
+	std::unique_lock<std::mutex> lock(GetRegistryMutex());
+
+	auto it = GetRegistry().find(name);
+
+	if (it == GetRegistry().end())
+		return nullptr;
+
+	return it->second;
+}
+
+void CLICommand::Register(const std::vector<String>& name, const CLICommand::Ptr& function)
+{
+	std::unique_lock<std::mutex> lock(GetRegistryMutex());
+	GetRegistry()[name] = function;
+}
+
+void CLICommand::Unregister(const std::vector<String>& name)
+{
+	std::unique_lock<std::mutex> lock(GetRegistryMutex());
+	GetRegistry().erase(name);
+}
+
+std::vector<String> CLICommand::GetArgumentSuggestions(const String& argument, const String& word) const
+{
+	return std::vector<String>();
+}
+
+std::vector<String> CLICommand::GetPositionalSuggestions(const String& word) const
+{
+	return std::vector<String>();
+}
+
+void CLICommand::InitParameters(boost::program_options::options_description& visibleDesc,
+	boost::program_options::options_description& hiddenDesc) const
+{ }
+
+ImpersonationLevel CLICommand::GetImpersonationLevel() const
+{
+	return ImpersonateIcinga;
+}
+
+bool CLICommand::ParseCommand(int argc, char **argv, po::options_description& visibleDesc,
+	po::options_description& hiddenDesc,
+	po::positional_options_description& positionalDesc,
+	po::variables_map& vm, String& cmdname, CLICommand::Ptr& command, bool autocomplete)
+{
+	std::unique_lock<std::mutex> lock(GetRegistryMutex());
+
+	typedef std::map<std::vector<String>, CLICommand::Ptr>::value_type CLIKeyValue;
+
+	std::vector<String> best_match;
+	int arg_end = 0;
+	bool tried_command = false;
+
+	for (const CLIKeyValue& kv : GetRegistry()) {
+		const std::vector<String>& vname = kv.first;
+
+		std::vector<String>::size_type i;
+		int k;
+		for (i = 0, k = 1; i < vname.size() && k < argc; i++, k++) {
+			if (strncmp(argv[k], "-", 1) == 0 || strncmp(argv[k], "--", 2) == 0) {
+				i--;
+				continue;
+			}
+
+			tried_command = true;
+
+			if (vname[i] != argv[k])
+				break;
+
+			if (i >= best_match.size())
+				best_match.push_back(vname[i]);
+
+			if (i == vname.size() - 1) {
+				cmdname = boost::algorithm::join(vname, " ");
+				command = kv.second;
+				arg_end = k;
+				goto found_command;
+			}
+		}
+	}
+
+found_command:
+	lock.unlock();
+
+	if (command) {
+		po::options_description vdesc("Command options");
+		command->InitParameters(vdesc, hiddenDesc);
+		visibleDesc.add(vdesc);
+	}
+
+	if (autocomplete || (tried_command && !command))
+		return true;
+
+	po::options_description adesc;
+	adesc.add(visibleDesc);
+	adesc.add(hiddenDesc);
+
+	if (command && command->IsDeprecated()) {
+		std::cerr << ConsoleColorTag(Console_ForegroundRed | Console_Bold)
+			<< "Warning: CLI command '" << cmdname << "' is DEPRECATED! Please read the Changelog."
+			<< ConsoleColorTag(Console_Normal) << std::endl << std::endl;
+	}
+
+	po::store(po::command_line_parser(argc - arg_end, argv + arg_end).options(adesc).positional(positionalDesc).run(), vm);
+	po::notify(vm);
+
+	return true;
+}
+
+void CLICommand::ShowCommands(int argc, char **argv, po::options_description *visibleDesc,
+	po::options_description *hiddenDesc,
+	ArgumentCompletionCallback globalArgCompletionCallback,
+	bool autocomplete, int autoindex)
+{
+	std::unique_lock<std::mutex> lock(GetRegistryMutex());
+
+	typedef std::map<std::vector<String>, CLICommand::Ptr>::value_type CLIKeyValue;
+
+	std::vector<String> best_match;
+	int arg_begin = 0;
+	CLICommand::Ptr command;
+
+	for (const CLIKeyValue& kv : GetRegistry()) {
+		const std::vector<String>& vname = kv.first;
+
+		arg_begin = 0;
+
+		std::vector<String>::size_type i;
+		int k;
+		for (i = 0, k = 1; i < vname.size() && k < argc; i++, k++) {
+			if (strcmp(argv[k], "--no-stack-rlimit") == 0 || strcmp(argv[k], "--autocomplete") == 0 || strcmp(argv[k], "--scm") == 0) {
+				i--;
+				arg_begin++;
+				continue;
+			}
+
+			if (autocomplete && static_cast<int>(i) >= autoindex - 1)
+				break;
+
+			if (vname[i] != argv[k])
+				break;
+
+			if (i >= best_match.size()) {
+				best_match.push_back(vname[i]);
+			}
+
+			if (i == vname.size() - 1) {
+				command = kv.second;
+				break;
+			}
+		}
+	}
+
+	String aword;
+
+	if (autocomplete) {
+		if (autoindex < argc)
+			aword = argv[autoindex];
+
+		if (autoindex - 1 > static_cast<int>(best_match.size()) && !command)
+			return;
+	} else
+		std::cout << "Supported commands: " << std::endl;
+
+	for (const CLIKeyValue& kv : GetRegistry()) {
+		const std::vector<String>& vname = kv.first;
+
+		if (vname.size() < best_match.size() || kv.second->IsHidden())
+			continue;
+
+		bool match = true;
+
+		for (std::vector<String>::size_type i = 0; i < best_match.size(); i++) {
+			if (vname[i] != best_match[i]) {
+				match = false;
+				break;
+			}
+		}
+
+		if (!match)
+			continue;
+
+		if (autocomplete) {
+			String cname;
+
+			if (autoindex - 1 < static_cast<int>(vname.size())) {
+				cname = vname[autoindex - 1];
+
+				if (cname.Find(aword) == 0)
+					std::cout << cname << "\n";
+			}
+		} else {
+			std::cout << "  * " << boost::algorithm::join(vname, " ")
+				<< " (" << kv.second->GetShortDescription() << ")"
+				<< (kv.second->IsDeprecated() ? " (DEPRECATED)" : "") << std::endl;
+		}
+	}
+
+	if (!autocomplete)
+		std::cout << std::endl;
+
+	if (command && autocomplete) {
+		String aname, prefix, pword;
+		const po::option_description *odesc;
+
+		if (autoindex - 2 >= 0 && strcmp(argv[autoindex - 1], "=") == 0 && strstr(argv[autoindex - 2], "--") == argv[autoindex - 2]) {
+			aname = argv[autoindex - 2] + 2;
+			pword = aword;
+		} else if (autoindex - 1 >= 0 && argv[autoindex - 1][0] == '-' && argv[autoindex - 1][1] == '-') {
+			aname = argv[autoindex - 1] + 2;
+			pword = aword;
+
+			if (pword == "=")
+				pword = "";
+		} else if (autoindex - 1 >= 0 && argv[autoindex - 1][0] == '-' && argv[autoindex - 1][1] != '-') {
+			aname = argv[autoindex - 1];
+			pword = aword;
+
+			if (pword == "=")
+				pword = "";
+		} else if (aword.GetLength() > 1 && aword[0] == '-' && aword[1] != '-') {
+			aname = aword.SubStr(0, 2);
+			prefix = aname;
+			pword = aword.SubStr(2);
+		} else {
+			goto complete_option;
+		}
+
+		odesc = visibleDesc->find_nothrow(aname, false);
+
+		if (!odesc)
+			return;
+
+		if (odesc->semantic()->min_tokens() == 0)
+			goto complete_option;
+
+		for (const String& suggestion : globalArgCompletionCallback(odesc->long_name(), pword)) {
+			std::cout << prefix << suggestion << "\n";
+		}
+
+		for (const String& suggestion : command->GetArgumentSuggestions(odesc->long_name(), pword)) {
+			std::cout << prefix << suggestion << "\n";
+		}
+
+		return;
+
+complete_option:
+		for (const boost::shared_ptr<po::option_description>& odesc : visibleDesc->options()) {
+			String cname = "--" + odesc->long_name();
+
+			if (cname.Find(aword) == 0)
+				std::cout << cname << "\n";
+		}
+
+		for (const String& suggestion : command->GetPositionalSuggestions(aword)) {
+			std::cout << suggestion << "\n";
+		}
+	}
+
+	return;
+}