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/* Copyright (c) 2007-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "str.h"
#include "qp-decoder.h"
#include "test-common.h"
struct test_quoted_printable_decode_data {
const char *input;
const char *output;
size_t error_pos;
int ret;
};
static void test_qp_decoder(void)
{
#define WHITESPACE10 " \t \t \t"
#define WHITESPACE70 WHITESPACE10 WHITESPACE10 WHITESPACE10 WHITESPACE10 WHITESPACE10 WHITESPACE10 WHITESPACE10
static struct test_quoted_printable_decode_data tests[] = {
{ "foo \r\nbar=\n", "foo\r\nbar", 0, 0 },
{ "foo\t=\nbar", "foo\tbar", 0, 0 },
{ "foo = \n=01", "foo \001", 0, 0 },
{ "foo =\t\r\nbar", "foo bar", 0, 0 },
{ "foo =\r\n=01", "foo \001", 0, 0 },
{ "foo \nbar=\r\n", "foo\r\nbar", 0, 0 },
{ "=0A=0D ", "\n\r", 0, 0 },
{ "foo_bar", "foo_bar", 0, 0 },
{ "\n\n", "\r\n\r\n", 0, 0 },
{ "\r\n\n\n\r\n", "\r\n\r\n\r\n\r\n", 0, 0 },
{ "foo=", "foo=", 4, -1 },
{ "foo= =66", "foo= f", 5, -1 },
{ "foo= \t", "foo= \t", 6, -1 },
{ "foo= \r", "foo= \r", 6, -1 },
{ "foo= \r bar", "foo= \r bar", 6, -1 },
{ "foo=A", "foo=A", 5, -1 },
{ "foo=Ax", "foo=Ax", 5, -1 },
{ "foo=Ax=xy", "foo=Ax=xy", 5, -1 },
/* above 76 whitespaces is invalid and gets truncated
(at 77th whitespace because of the current implementation) */
{ WHITESPACE70" 7\n", WHITESPACE70" 7\r\n", 0, 0 },
{ WHITESPACE70" 8\n", WHITESPACE70" 8\r\n", 77, -1 },
{ WHITESPACE70" 9\n", WHITESPACE70" 9\r\n", 78, -1 },
{ WHITESPACE70" 0\n", WHITESPACE70" 0\r\n", 79, -1 },
/* Expect extra whitespace to be truncated */
{ WHITESPACE70" 7\n"WHITESPACE10"", WHITESPACE70" 7\r\n", 0, 0 },
{ WHITESPACE70" 7=\r\n"WHITESPACE10, WHITESPACE70" 7", 0, 0 },
/* Unnecessarily encoded */
{ "=66=6f=6f=42=61=72", "fooBar", 0, 0 },
/* Expected to be encoded but not */
{ "\xc3\x9c""berm=c3=a4\xc3\x9figer Gebrauch", "\xc3\x9c""berm\xc3\xa4\xc3\x9figer Gebrauch", 0, 0 },
/* Decode control characters */
{ "=0C=07", "\x0C\x07", 0, 0 },
/* Data */
{ "=DE=AD=BE=EF", "\xDE\xAD\xBE\xEF", 0, 0 },
/* Non hex data */
{ "=FJ=X1", "=FJ=X1", 2, -1 },
/* No content allowed after Soft Line Break */
{ "=C3=9C = ","\xc3\x9c"" = ", 9, -1 },
/* Boundary delimiter */
{ "=C3=9C=\r\n-------","\xc3\x9c""-------", 0, 0 },
{ "=----------- =C3=9C","=----------- \xc3\x9c""", 1, -1 },
{ "=___________ =C3=9C","=___________ \xc3\x9c""", 1, -1 },
{ "___________ =C3=9C","___________ \xc3\x9c""", 0, 0 },
{ "=2D=2D=2D=2D=2D=2D =C3=9C","------ \xc3\x9c""", 0, 0 },
{ "=FC=83=BF=BF=BF=BF", "\xFC\x83\xBF\xBF\xBF\xBF", 0, 0 },
{ "=FE=FE=FF=FF", "\xFE\xFE\xFF\xFF", 0, 0 },
{ "\xFF=C3=9C\xFE\xFF""foobar", "\xFF\xc3\x9c""\xFE\xFF""foobar", 0, 0 },
/* Unnecessarily encoded and trailing whitespace */
{
"=66=6f=6f=42=61=72 ",
"fooBar", 0, 0
},
/* Indicate error if encoded line is longer then 76 */
{
WHITESPACE70" =C3=9C\n",
WHITESPACE70" \xc3\x9c""\r\n", 77, -1
},
/* Soft Line Break example from the RFC */
{
"Now's the time =\r\nfor all folk to come=\r\n to the"
" aid of their country.",
"Now's the time for all folk to come to the aid of "
"their country.", 0, 0
},
{
"=C3=9Cberm=C3=A4=C3=9Figer Gebrauch",
"\xc3\x9c""berm\xc3\xa4\xc3\x9figer Gebrauch", 0, 0
},
/* Softlinebreak without following content */
{
"=C3=9Cberm=C3=A4=C3=9Figer Gebrauch=",
"\xc3\x9c""berm\xc3\xa4\xc3\x9figer Gebrauch=", 36, -1
},
/* Lowercase formally illegal but allowed for robustness */
{
"=c3=9cberm=c3=a4=c3=9figer Gebrauch",
"\xc3\x9c""berm\xc3\xa4\xc3\x9figer Gebrauch", 0, 0
},
/* Control characters in input */
{
"=c3=9c=10berm=c3=a4=c3=9figer Geb=0Frauch",
"\xc3\x9c\x10""berm\xc3\xa4\xc3\x9figer Geb\x0Frauch", 0, 0
},
/* Trailing whitespace */
{
"Trailing Whitesp=C3=A4ce =\r\n ",
"Trailing Whitesp\xc3\xa4""ce ", 0 ,0
},
{
"Trailing Whitesp=C3=A4ce ",
"Trailing Whitesp\xc3\xa4""ce", 0 ,0
},
{
"=54=65=73=74=20=6D=65=73=73=61=67=65",
"Test message", 0 , 0
},
{
"=E3=81=93=E3=82=8C=E3=81=AF=E5=A2\r\n=83=E7=95=8C=E3"
"=81=AE=E3=81=82=E3=82=8B=E3=83=A1=E3=83=83=E3=82=BB="
"E3=83=BC=E3=82=B8=E3=81=A7=E3=81=99",
"\xE3\x81\x93\xE3\x82\x8C\xE3\x81\xAF\xE5\xA2\r\n\x83"
"\xE7\x95\x8C\xE3\x81\xAE\xE3\x81\x82\xE3\x82\x8B\xE3"
"\x83\xA1\xE3\x83\x83\xE3\x82\xBB\xE3\x83\xBC\xE3\x82"
"\xB8\xE3\x81\xA7\xE3\x81\x99", 0, 0
},
{
"=E3=81\xc3\xf1=93=E3=82=8\xff""C=E3=81=AF=E5=A2",
"\xE3\x81\xc3\xf1\x93\xE3\x82=8\xff""C\xE3\x81\xAF\xE5\xA2",
19, -1
},
{
"\x77Hello\x76=20 \x20 =E3=81\xc3\xf1=93=E3=82",
"wHellov \xE3\x81\xc3\xf1\x93\xE3\x82",
0, 0
},
};
string_t *str;
unsigned int i, j;
test_begin("qp-decoder");
str = t_str_new(128);
for (i = 0; i < N_ELEMENTS(tests); i++) {
const char *input = tests[i].input;
struct qp_decoder *qp = qp_decoder_init(str);
size_t error_pos;
const char *error;
int ret;
/* try all at once */
ret = qp_decoder_more(qp, (const void *)input, strlen(input),
&error_pos, &error);
if (qp_decoder_finish(qp, &error) < 0 && ret == 0) {
error_pos = strlen(input);
ret = -1;
}
test_assert_idx(ret == tests[i].ret, i);
test_assert_idx(ret == 0 || error_pos == tests[i].error_pos, i);
test_assert_strcmp_idx(str_c(str), tests[i].output, i);
/* try in small pieces */
str_truncate(str, 0);
ret = 0;
for (j = 0; input[j] != '\0'; j++) {
unsigned char c = (unsigned char)input[j];
if (qp_decoder_more(qp, &c, 1, &error_pos, &error) < 0)
ret = -1;
}
if (qp_decoder_finish(qp, &error) < 0)
ret = -1;
test_assert_idx(ret == tests[i].ret, i);
test_assert_strcmp_idx(str_c(str), tests[i].output, i);
qp_decoder_deinit(&qp);
str_truncate(str, 0);
}
test_end();
}
int main(void)
{
static void (*const test_functions[])(void) = {
test_qp_decoder,
NULL
};
return test_run(test_functions);
}
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