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Merge #8877: Qt RPC console: history sensitive-data filter, and saving input line when browsing history

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8562792 GUI/RPCConsole: Include importmulti in history sensitive-command filter (Luke Dashjr)
ff77faf Qt/RPCConsole: Use RPCParseCommandLine to perform command filtering (Luke Dashjr)
a79598d Qt/Test: Make sure filtering sensitive data works correctly in nested commands (Luke Dashjr)
629cd42 Qt/RPCConsole: Teach RPCParseCommandLine how to filter out arguments to sensitive commands (Luke Dashjr)
e2d9213 Qt/RPCConsole: Make it possible to parse a command without executing it (Luke Dashjr)
1755c04 Qt/RPCConsole: Truncate filtered commands to just the command name, rather than skip it entirely in history (Luke Dashjr)
d80a006 Qt/RPCConsole: Add signmessagewithprivkey to list of commands filtered from history (Luke Dashjr)
afde12f Qt/RPCConsole: Refactor command_may_contain_sensitive_data function out of RPCConsole::on_lineEdit_returnPressed (Luke Dashjr)
de8980d Bugfix: Do not add sensitive information to history for real (Luke Dashjr)
9044908 Qt/RPCConsole: Don't store commands with potentially sensitive information in the history (Jonas Schnelli)
fc95daa Qt/RPCConsole: Save current command entry when browsing history (Jonas Schnelli)
This commit is contained in:
Jonas Schnelli 2017-01-03 16:57:15 +01:00
commit 6dc4c43d32
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GPG key ID: 29D4BCB6416F53EC
3 changed files with 131 additions and 20 deletions
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105
src/qt/rpcconsole.cpp
View file

@ -31,6 +31,7 @@
#include <QKeyEvent>
#include <QMenu>
#include <QMessageBox>
#include <QScrollBar>
#include <QSettings>
#include <QSignalMapper>
@ -63,6 +64,20 @@ const struct {
{NULL, NULL}
};
namespace {
// don't add private key handling cmd's to the history
const QStringList historyFilter = QStringList()
<< "importprivkey"
<< "importmulti"
<< "signmessagewithprivkey"
<< "signrawtransaction"
<< "walletpassphrase"
<< "walletpassphrasechange"
<< "encryptwallet";
}
/* Object for executing console RPC commands in a separate thread.
*/
class RPCExecutor : public QObject
@ -113,10 +128,10 @@ public:
#include "rpcconsole.moc"
/**
* Split shell command line into a list of arguments and execute the command(s).
* Split shell command line into a list of arguments and optionally execute the command(s).
* Aims to emulate \c bash and friends.
*
* - Command nesting is possible with brackets [example: validateaddress(getnewaddress())]
* - Command nesting is possible with parenthesis; for example: validateaddress(getnewaddress())
* - Arguments are delimited with whitespace or comma
* - Extra whitespace at the beginning and end and between arguments will be ignored
* - Text can be "double" or 'single' quoted
@ -127,9 +142,11 @@ public:
*
* @param[out] result stringified Result from the executed command(chain)
* @param[in] strCommand Command line to split
* @param[in] fExecute set true if you want the command to be executed
* @param[out] pstrFilteredOut Command line, filtered to remove any sensitive data
*/
bool RPCConsole::RPCExecuteCommandLine(std::string &strResult, const std::string &strCommand)
bool RPCConsole::RPCParseCommandLine(std::string &strResult, const std::string &strCommand, const bool fExecute, std::string * const pstrFilteredOut)
{
std::vector< std::vector<std::string> > stack;
stack.push_back(std::vector<std::string>());
@ -149,12 +166,35 @@ bool RPCConsole::RPCExecuteCommandLine(std::string &strResult, const std::string
} state = STATE_EATING_SPACES;
std::string curarg;
UniValue lastResult;
unsigned nDepthInsideSensitive = 0;
size_t filter_begin_pos = 0, chpos;
std::vector<std::pair<size_t, size_t>> filter_ranges;
auto add_to_current_stack = [&](const std::string& curarg) {
if (stack.back().empty() && (!nDepthInsideSensitive) && historyFilter.contains(QString::fromStdString(curarg), Qt::CaseInsensitive)) {
nDepthInsideSensitive = 1;
filter_begin_pos = chpos;
}
stack.back().push_back(curarg);
};
auto close_out_params = [&]() {
if (nDepthInsideSensitive) {
if (!--nDepthInsideSensitive) {
assert(filter_begin_pos);
filter_ranges.push_back(std::make_pair(filter_begin_pos, chpos));
filter_begin_pos = 0;
}
}
stack.pop_back();
};
std::string strCommandTerminated = strCommand;
if (strCommandTerminated.back() != '\n')
strCommandTerminated += "\n";
for(char ch: strCommandTerminated)
for (chpos = 0; chpos < strCommandTerminated.size(); ++chpos)
{
char ch = strCommandTerminated[chpos];
switch(state)
{
case STATE_COMMAND_EXECUTED_INNER:
@ -173,7 +213,7 @@ bool RPCConsole::RPCExecuteCommandLine(std::string &strResult, const std::string
curarg += ch;
break;
}
if (curarg.size())
if (curarg.size() && fExecute)
{
// if we have a value query, query arrays with index and objects with a string key
UniValue subelement;
@ -198,7 +238,7 @@ bool RPCConsole::RPCExecuteCommandLine(std::string &strResult, const std::string
breakParsing = false;
// pop the stack and return the result to the current command arguments
stack.pop_back();
close_out_params();
// don't stringify the json in case of a string to avoid doublequotes
if (lastResult.isStr())
@ -210,7 +250,7 @@ bool RPCConsole::RPCExecuteCommandLine(std::string &strResult, const std::string
if (curarg.size())
{
if (stack.size())
stack.back().push_back(curarg);
add_to_current_stack(curarg);
else
strResult = curarg;
}
@ -236,25 +276,31 @@ bool RPCConsole::RPCExecuteCommandLine(std::string &strResult, const std::string
if (state == STATE_ARGUMENT)
{
if (ch == '(' && stack.size() && stack.back().size() > 0)
{
if (nDepthInsideSensitive) {
++nDepthInsideSensitive;
}
stack.push_back(std::vector<std::string>());
}
// don't allow commands after executed commands on baselevel
if (!stack.size())
throw std::runtime_error("Invalid Syntax");
stack.back().push_back(curarg);
add_to_current_stack(curarg);
curarg.clear();
state = STATE_EATING_SPACES_IN_BRACKETS;
}
if ((ch == ')' || ch == '\n') && stack.size() > 0)
{
std::string strPrint;
if (fExecute) {
// Convert argument list to JSON objects in method-dependent way,
// and pass it along with the method name to the dispatcher.
JSONRPCRequest req;
req.params = RPCConvertValues(stack.back()[0], std::vector<std::string>(stack.back().begin() + 1, stack.back().end()));
req.strMethod = stack.back()[0];
lastResult = tableRPC.execute(req);
}
state = STATE_COMMAND_EXECUTED;
curarg.clear();
@ -266,7 +312,7 @@ bool RPCConsole::RPCExecuteCommandLine(std::string &strResult, const std::string
else if(state == STATE_ARGUMENT) // Space ends argument
{
stack.back().push_back(curarg);
add_to_current_stack(curarg);
curarg.clear();
}
if ((state == STATE_EATING_SPACES_IN_BRACKETS || state == STATE_ARGUMENT) && ch == ',')
@ -303,6 +349,16 @@ bool RPCConsole::RPCExecuteCommandLine(std::string &strResult, const std::string
break;
}
}
if (pstrFilteredOut) {
if (STATE_COMMAND_EXECUTED == state) {
assert(!stack.empty());
close_out_params();
}
*pstrFilteredOut = strCommand;
for (auto i = filter_ranges.rbegin(); i != filter_ranges.rend(); ++i) {
pstrFilteredOut->replace(i->first, i->second - i->first, "(…)");
}
}
switch(state) // final state
{
case STATE_COMMAND_EXECUTED:
@ -747,12 +803,30 @@ void RPCConsole::setMempoolSize(long numberOfTxs, size_t dynUsage)
void RPCConsole::on_lineEdit_returnPressed()
{
QString cmd = ui->lineEdit->text();
ui->lineEdit->clear();
if(!cmd.isEmpty())
{
std::string strFilteredCmd;
try {
std::string dummy;
if (!RPCParseCommandLine(dummy, cmd.toStdString(), false, &strFilteredCmd)) {
// Failed to parse command, so we cannot even filter it for the history
throw std::runtime_error("Invalid command line");
}
} catch (const std::exception& e) {
QMessageBox::critical(this, "Error", QString("Error: ") + QString::fromStdString(e.what()));
return;
}
ui->lineEdit->clear();
cmdBeforeBrowsing = QString();
message(CMD_REQUEST, cmd);
Q_EMIT cmdRequest(cmd);
cmd = QString::fromStdString(strFilteredCmd);
// Remove command, if already in history
history.removeOne(cmd);
// Append command to history
@ -762,6 +836,7 @@ void RPCConsole::on_lineEdit_returnPressed()
history.removeFirst();
// Set pointer to end of history
historyPtr = history.size();
// Scroll console view to end
scrollToEnd();
}
@ -769,6 +844,11 @@ void RPCConsole::on_lineEdit_returnPressed()
void RPCConsole::browseHistory(int offset)
{
// store current text when start browsing through the history
if (historyPtr == history.size()) {
cmdBeforeBrowsing = ui->lineEdit->text();
}
historyPtr += offset;
if(historyPtr < 0)
historyPtr = 0;
@ -777,6 +857,9 @@ void RPCConsole::browseHistory(int offset)
QString cmd;
if(historyPtr < history.size())
cmd = history.at(historyPtr);
else if (!cmdBeforeBrowsing.isNull()) {
cmd = cmdBeforeBrowsing;
}
ui->lineEdit->setText(cmd);
}

6
src/qt/rpcconsole.h
View file

@ -36,7 +36,10 @@ public:
explicit RPCConsole(const PlatformStyle *platformStyle, QWidget *parent);
~RPCConsole();
static bool RPCExecuteCommandLine(std::string &strResult, const std::string &strCommand);
static bool RPCParseCommandLine(std::string &strResult, const std::string &strCommand, bool fExecute, std::string * const pstrFilteredOut = NULL);
static bool RPCExecuteCommandLine(std::string &strResult, const std::string &strCommand, std::string * const pstrFilteredOut = NULL) {
return RPCParseCommandLine(strResult, strCommand, true, pstrFilteredOut);
}
void setClientModel(ClientModel *model);
@ -140,6 +143,7 @@ private:
ClientModel *clientModel;
QStringList history;
int historyPtr;
QString cmdBeforeBrowsing;
QList<NodeId> cachedNodeids;
const PlatformStyle *platformStyle;
RPCTimerInterface *rpcTimerInterface;

28
src/qt/test/rpcnestedtests.cpp
View file

@ -61,8 +61,10 @@ void RPCNestedTests::rpcNestedTests()
std::string result;
std::string result2;
RPCConsole::RPCExecuteCommandLine(result, "getblockchaininfo()[chain]"); //simple result filtering with path
std::string filtered;
RPCConsole::RPCExecuteCommandLine(result, "getblockchaininfo()[chain]", &filtered); //simple result filtering with path
QVERIFY(result=="main");
QVERIFY(filtered == "getblockchaininfo()[chain]");
RPCConsole::RPCExecuteCommandLine(result, "getblock(getbestblockhash())"); //simple 2 level nesting
RPCConsole::RPCExecuteCommandLine(result, "getblock(getblock(getbestblockhash())[hash], true)");
@ -87,8 +89,30 @@ void RPCNestedTests::rpcNestedTests()
(RPCConsole::RPCExecuteCommandLine(result2, "createrawtransaction( [], {} , 0 )")); //whitespace between parametres is allowed
QVERIFY(result == result2);
RPCConsole::RPCExecuteCommandLine(result, "getblock(getbestblockhash())[tx][0]");
RPCConsole::RPCExecuteCommandLine(result, "getblock(getbestblockhash())[tx][0]", &filtered);
QVERIFY(result == "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b");
QVERIFY(filtered == "getblock(getbestblockhash())[tx][0]");
RPCConsole::RPCParseCommandLine(result, "importprivkey", false, &filtered);
QVERIFY(filtered == "importprivkey(…)");
RPCConsole::RPCParseCommandLine(result, "signmessagewithprivkey abc", false, &filtered);
QVERIFY(filtered == "signmessagewithprivkey(…)");
RPCConsole::RPCParseCommandLine(result, "signmessagewithprivkey abc,def", false, &filtered);
QVERIFY(filtered == "signmessagewithprivkey(…)");
RPCConsole::RPCParseCommandLine(result, "signrawtransaction(abc)", false, &filtered);
QVERIFY(filtered == "signrawtransaction(…)");
RPCConsole::RPCParseCommandLine(result, "walletpassphrase(help())", false, &filtered);
QVERIFY(filtered == "walletpassphrase(…)");
RPCConsole::RPCParseCommandLine(result, "walletpassphrasechange(help(walletpassphrasechange(abc)))", false, &filtered);
QVERIFY(filtered == "walletpassphrasechange(…)");
RPCConsole::RPCParseCommandLine(result, "help(encryptwallet(abc, def))", false, &filtered);
QVERIFY(filtered == "help(encryptwallet(…))");
RPCConsole::RPCParseCommandLine(result, "help(importprivkey())", false, &filtered);
QVERIFY(filtered == "help(importprivkey(…))");
RPCConsole::RPCParseCommandLine(result, "help(importprivkey(help()))", false, &filtered);
QVERIFY(filtered == "help(importprivkey(…))");
RPCConsole::RPCParseCommandLine(result, "help(importprivkey(abc), walletpassphrase(def))", false, &filtered);
QVERIFY(filtered == "help(importprivkey(…), walletpassphrase(…))");
RPCConsole::RPCExecuteCommandLine(result, "rpcNestedTest");
QVERIFY(result == "[]");