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#include "TestSupport.h"
#include "ScgiRequestParser.h"
using namespace Passenger;
using namespace std;
namespace tut {
struct ScgiRequestParserTest {
ScgiRequestParser parser;
};
DEFINE_TEST_GROUP(ScgiRequestParserTest);
TEST_METHOD(1) {
// It has an initial state of READING_LENGTH_STRING and does
// not have anything in its header data buffer.
ensure_equals(parser.getState(), ScgiRequestParser::READING_LENGTH_STRING);
ensure(parser.getHeaderData().empty());
}
/***** Test parsing a complete SCGI request in a single pass. *****/
TEST_METHOD(2) {
// Parsing a request with a single header and no body.
static const char data[] = "12:hello\0world\0,";
ensure_equals("It accepted all input.",
parser.feed(data, sizeof(data) - 1),
sizeof(data) - 1);
ensure_equals("It is in the accepting state.",
parser.getState(), ScgiRequestParser::DONE);
ensure_equals("It parsed the header data.",
parser.getHeaderData(),
string("hello\0world\0", 12));
ensure(parser.getHeader("hello") == "world");
}
TEST_METHOD(3) {
// Parsing a request with a single header and a body.
static const char data[] = "12:hello\0world\0,data";
ensure_equals("It accepted all input.",
parser.feed(data, sizeof(data) - 1 - 4),
sizeof(data) - 1 - 4);
ensure_equals("It is in the accepting state.",
parser.getState(), ScgiRequestParser::DONE);
ensure_equals("It parsed the header data.",
parser.getHeaderData(),
string("hello\0world\0", 12));
ensure(parser.getHeader("hello") == "world");
}
TEST_METHOD(4) {
// Parsing a request with multiple headers and no body.
static const char data[] = "19:hello\0world\0SCGI\0001\0,";
ensure_equals("It accepted all input.",
parser.feed(data, sizeof(data) - 1),
sizeof(data) - 1);
ensure_equals("It is in the accepting state.",
parser.getState(), ScgiRequestParser::DONE);
ensure_equals("It parsed the header data.",
parser.getHeaderData(),
string("hello\0world\0SCGI\0001\0", 19));
ensure(parser.getHeader("hello") == "world");
ensure(parser.getHeader("SCGI") == "1");
}
TEST_METHOD(5) {
// Parsing a request with multiple headers and a body.
static const char data[] = "19:hello\0world\0SCGI\0001\0,body";
ensure_equals("It accepted all input.",
parser.feed(data, sizeof(data) - 1 - 4),
sizeof(data) - 1 - 4);
ensure_equals("It is in the accepting state.",
parser.getState(), ScgiRequestParser::DONE);
ensure_equals("It parsed the header data.",
parser.getHeaderData(),
string("hello\0world\0SCGI\0001\0", 19));
ensure(parser.getHeader("hello") == "world");
ensure(parser.getHeader("SCGI") == "1");
}
TEST_METHOD(6) {
// Parsing a request that's larger than the limit.
parser = ScgiRequestParser(9);
parser.feed("10:", 3);
ensure_equals("It is in the error state",
parser.getState(), ScgiRequestParser::ERROR);
ensure_equals(parser.getErrorReason(),
ScgiRequestParser::LIMIT_REACHED);
}
/***** Test parsing a complete SCGI request in multiple passes. *****/
TEST_METHOD(8) {
// Parsing a request with multiple headers and a body.
// 1 byte per pass.
static const char data[] = "20:hello\0world\0foo\0bar\0,data";
for (unsigned int i = 0; i < sizeof(data) - 1 - 4; i++) {
ensure_equals(parser.feed(&data[i], 1), 1u);
}
ensure_equals("It is in the accepting state.",
parser.getState(), ScgiRequestParser::DONE);
ensure_equals("It parsed the header data.",
parser.getHeaderData(),
string("hello\0world\0foo\0bar\0", 20));
ensure(parser.getHeader("hello") == "world");
ensure(parser.getHeader("foo") == "bar");
}
TEST_METHOD(9) {
// Parsing a request with multiple headers and a body.
// Half element per pass.
ensure_equals(parser.feed("2", 1), 1u);
ensure_equals(parser.feed("0", 1), 1u);
ensure_equals(parser.feed(":", 1), 1u);
ensure_equals(parser.feed("hello\0world\0", 12), 12u);
ensure_equals(parser.feed("foo\0bar\0", 8), 8u);
ensure_equals(parser.feed(",", 1), 1u);
ensure_equals(parser.feed("da", 2), 0u);
ensure_equals(parser.feed("ta", 2), 0u);
ensure_equals("It is in the accepting state.",
parser.getState(), ScgiRequestParser::DONE);
ensure_equals("It parsed the header data.",
parser.getHeaderData(),
string("hello\0world\0foo\0bar\0", 20));
ensure(parser.getHeader("hello") == "world");
ensure(parser.getHeader("foo") == "bar");
}
TEST_METHOD(10) {
// Parsing a request with multiple headers and a body.
// 1 element per pass.
ensure_equals(parser.feed("20", 2), 2u);
ensure_equals(parser.feed(":", 1), 1u);
ensure_equals(parser.feed("hello\0world\0foo\0bar\0", 20), 20u);
ensure_equals(parser.feed(",", 1), 1u);
ensure_equals(parser.feed("data", 4), 0u);
ensure_equals("It is in the accepting state.",
parser.getState(), ScgiRequestParser::DONE);
ensure_equals("It parsed the header data.",
parser.getHeaderData(),
string("hello\0world\0foo\0bar\0", 20));
ensure(parser.getHeader("hello") == "world");
ensure(parser.getHeader("foo") == "bar");
}
TEST_METHOD(11) {
// Parsing a request with multiple headers and a body.
// 2 elements per pass.
ensure_equals(parser.feed("20:", 3), 3u);
ensure_equals(parser.feed("hello\0world\0foo\0bar\0,", 21), 21u);
ensure_equals(parser.feed("data", 4), 0u);
ensure_equals("It is in the accepting state.",
parser.getState(), ScgiRequestParser::DONE);
ensure_equals("It parsed the header data.",
parser.getHeaderData(),
string("hello\0world\0foo\0bar\0", 20));
ensure(parser.getHeader("hello") == "world");
ensure(parser.getHeader("foo") == "bar");
}
TEST_METHOD(12) {
// Parsing a request with multiple headers and a body.
// Variable number of elements per pass.
ensure_equals(parser.feed("20:h", 4), 4u);
ensure_equals(parser.feed("ello\0world\0foo\0bar", 18), 18u);
ensure_equals(parser.feed("\0,data", 6), 2u);
ensure_equals("It is in the accepting state.",
parser.getState(), ScgiRequestParser::DONE);
ensure_equals("It parsed the header data.",
parser.getHeaderData(),
string("hello\0world\0foo\0bar\0", 20));
ensure(parser.getHeader("hello") == "world");
ensure(parser.getHeader("foo") == "bar");
}
/***** Test parsing invalid SCGI requests in one pass. *****/
TEST_METHOD(16) {
// Invalid first character for length string.
ensure_equals("Parser did not accept anything.",
parser.feed("hello world!", 12), 0u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(17) {
// Invalid character inside length string.
ensure_equals(parser.feed("12x:hello world!", 16), 2u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(18) {
// Invalid character in place of colon.
ensure_equals(parser.feed("12#hello world!", 15), 2u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(19) {
// Invalid character in place of comma.
ensure_equals(parser.feed("12:hello\0world\0!", 16), 15u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(20) {
// Only a header name, without even a null terminator.
ensure_equals(parser.feed("5:hello,", 8), 7u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(21) {
// Only a header name, with a null terminator.
ensure_equals(parser.feed("6:hello\0,", 9), 8u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(22) {
// A header name with its value not having a null terminator.
ensure_equals(parser.feed("7:foo\0bar,", 10), 9u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(23) {
// A header name without corresponding value.
ensure_equals(parser.feed("10:foo\0bar\0a\0,", 14), 13u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(24) {
// Length string is too large.
static const char data[] = "999999999999999999999";
ensure(parser.feed(data, sizeof(data) - 1) < sizeof(data) - 1);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(25) {
// An empty header name.
ensure_equals(parser.feed("5:\0bar\0,", 8), 7u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
/***** Test parsing invalid SCGI requests in multiple passes. *****/
TEST_METHOD(27) {
// Once the parser has entered the error state, it stays there.
ensure_equals(parser.feed("hello world!", 12), 0u);
ensure_equals(parser.feed("1", 1), 0u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(28) {
// Invalid character inside length string.
ensure_equals(parser.feed("12", 2), 2u);
ensure_equals(parser.feed("x:", 2), 0u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(29) {
// Invalid character in place of colon.
ensure_equals(parser.feed("12", 2), 2u);
ensure_equals(parser.feed("#", 1), 0u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(30) {
// Invalid character in place of comma.
ensure_equals(parser.feed("12:hello\0world\0", 15), 15u);
ensure_equals(parser.feed("!", 1), 0u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(31) {
// Only a header name, without even a null terminator.
ensure_equals(parser.feed("5:hell", 6), 6u);
ensure_equals(parser.feed("o,", 1), 1u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(32) {
// Only a header name, with a null terminator.
ensure_equals(parser.feed("6:hello", 7), 7u);
ensure_equals(parser.feed("\0,", 1), 1u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(33) {
// A header name with its value not having a null terminator.
ensure_equals(parser.feed("7:foo\0ba", 8), 8u);
ensure_equals(parser.feed("r,", 2), 1u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(34) {
// A header name without corresponding value.
ensure_equals(parser.feed("10:foo\0bar\0a", 12), 12u);
ensure_equals(parser.feed("\0,", 2), 1u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(35) {
// Length string is too large.
static const char data[] = "999999999999999999999";
ensure_equals(parser.feed("99", 2), 2u);
ensure(parser.feed(data, sizeof(data) - 1) < sizeof(data) - 1);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
TEST_METHOD(36) {
// Parsing a request that's larger than the limit.
parser = ScgiRequestParser(9);
parser.feed("1", 1);
parser.feed("0", 1);
parser.feed(":", 1);
ensure_equals("It is in the error state",
parser.getState(), ScgiRequestParser::ERROR);
ensure_equals(parser.getErrorReason(),
ScgiRequestParser::LIMIT_REACHED);
}
TEST_METHOD(37) {
// An empty header name.
ensure_equals(parser.feed("5:\0", 3), 3u);
ensure_equals(parser.feed("bar\0,", 5), 4u);
ensure_equals("Parser is in the error state.",
parser.getState(), ScgiRequestParser::ERROR);
}
/***** Test parsing incomplete SCGI requests. *****/
TEST_METHOD(40) {
// Incomplete length string.
ensure_equals(parser.feed("2", 1), 1u);
ensure_equals("Parser is still waiting for length string input.",
parser.getState(), ScgiRequestParser::READING_LENGTH_STRING);
}
TEST_METHOD(41) {
// Incomplete header.
ensure_equals(parser.feed("21:", 3), 3u);
ensure_equals("Parser is waiting for header data input.",
parser.getState(), ScgiRequestParser::READING_HEADER_DATA);
}
TEST_METHOD(42) {
// Incomplete header.
ensure_equals(parser.feed("20:hel", 6), 6u);
ensure_equals("Parser is waiting for header data input.",
parser.getState(), ScgiRequestParser::READING_HEADER_DATA);
}
TEST_METHOD(43) {
// Complete header but no comma.
ensure_equals(parser.feed("8:foo\0bar\0", 10), 10u);
ensure_equals("Parser is waiting for comma.",
parser.getState(), ScgiRequestParser::EXPECTING_COMMA);
}
TEST_METHOD(44) {
// Parsing a request that's smaller than the limit.
static const char data[] = "10:";
parser = ScgiRequestParser(11);
parser.feed(data, sizeof(data) - 1);
ensure_equals("It accepted the data (9)",
parser.getState(), ScgiRequestParser::READING_HEADER_DATA);
parser = ScgiRequestParser(10);
parser.feed(data, sizeof(data) - 1);
ensure_equals("It accepted the data (10)",
parser.getState(), ScgiRequestParser::READING_HEADER_DATA);
}
}
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