mod_test_util_uri.c revision 72360798a27566f28e2cbee0e39a0a6e3c3bd729
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* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* Portions of this software are based upon public domain software
* originally written at the National Center for Supercomputing Applications,
* University of Illinois, Urbana-Champaign.
*/
/*
* This module is intended to test the util_uri routines by parsing a
* bunch of urls and comparing the results with what we expect to
* see.
*
* Usage:
*
* <Location /test-util-uri>
* SetHandler test-util-uri
* </Location>
*
* Then make a request to /test-util-uri. An html apr_table_t of errors will
* be output... and a total count of errors.
*/
#include "httpd.h"
#include "http_protocol.h"
#include "http_config.h"
#include "http_main.h"
typedef struct {
const char *scheme;
const char *user;
const char *password;
const char *hostname;
const char *port_str;
const char *path;
const char *query;
const char *fragment;
} test_uri_t;
#define T_scheme 0x01
#define T_user 0x02
#define T_password 0x04
#define T_hostname 0x08
#define T_port_str 0x10
#define T_path 0x20
#define T_query 0x40
#define T_fragment 0x80
#define T_MAX 0x100
/* The idea is that we list here a bunch of url pieces that we want
* stitched together in every way that's valid.
*/
static const test_uri_t uri_tests[] = {
{ "http", "userid", "passwd", "hostname.goes.here", "80", "/path/goes/here", "query-here", "frag-here" },
{ "http", "", "passwd", "hostname.goes.here", "80", "/path/goes/here", "query-here", "frag-here" },
{ "http", "userid", "", "hostname.goes.here", "80", "/path/goes/here", "query-here", "frag-here" },
{ "http", "userid", "passwd", "", "80", "/path/goes/here", "query-here", "frag-here" },
{ "http", "userid", "passwd", "hostname.goes.here", "", "/path/goes/here", "query-here", "frag-here" },
#if 0
/* An empty path means two different things depending on whether this is a
* relative or an absolute uri... consider <a href="#frag"> versus "GET
* http://hostname HTTP/1.1". So this is why parse_uri_components returns
* a NULL for path when it doesn't find one, instead of returning an empty
* string.
*
* We don't really need to test it explicitly since path has no explicit
* character that indicates its precense, and so we test empty paths all
* the time by varying T_path in the loop. It would just cost us extra
* code to special case the empty path string...
*/
{ "http", "userid", "passwd", "hostname.goes.here", "80", "", "query-here", "frag-here" },
#endif
{ "http", "userid", "passwd", "hostname.goes.here", "80", "/path/goes/here", "", "frag-here" },
{ "http", "userid", "passwd", "hostname.goes.here", "80", "/path/goes/here", "query-here", "" },
{ "https", "user@d", "pa:swd", "hostname.goes.here.", "", "/~path/goes/here", "query&query?crud", "frag-here?baby" }
};
static char *my_stpcpy(char *d, const char *s)
{
while((*d = *s)) {
++d;
++s;
}
return d;
}
/* return the number of failures */
static unsigned iterate_pieces(request_rec *r, const test_uri_t *pieces, int row)
{
unsigned u;
apr_pool_t *sub;
char *input_uri;
char *strp;
uri_components result;
unsigned expect;
int status;
unsigned failures;
failures = 0;
input_uri = apr_palloc(r->pool,
strlen(pieces->scheme) + 3
+ strlen(pieces->user) + 1
+ strlen(pieces->password) + 1
+ strlen(pieces->hostname) + 1
+ strlen(pieces->port_str) + 1
+ strlen(pieces->path) +
+ strlen(pieces->query) + 1
+ strlen(pieces->fragment) + 1
+ 1);
for (u = 0; u < T_MAX; ++u) {
strp = input_uri;
expect = 0;
/* a scheme requires a hostinfo and vice versa */
/* a hostinfo requires a hostname */
if (u & (T_scheme|T_user|T_password|T_hostname|T_port_str)) {
expect |= T_scheme;
strp = my_stpcpy(strp, pieces->scheme);
*strp++ = ':';
*strp++ = '/';
*strp++ = '/';
/* can't have password without user */
if (u & (T_user|T_password)) {
expect |= T_user;
strp = my_stpcpy(strp, pieces->user);
if (u & T_password) {
expect |= T_password;
*strp++ = ':';
strp = my_stpcpy(strp, pieces->password);
}
*strp++ = '@';
}
expect |= T_hostname;
strp = my_stpcpy(strp, pieces->hostname);
if (u & T_port_str) {
expect |= T_port_str;
*strp++ = ':';
strp = my_stpcpy(strp, pieces->port_str);
}
}
if (u & T_path) {
expect |= T_path;
strp = my_stpcpy(strp, pieces->path);
}
if (u & T_query) {
expect |= T_query;
*strp++ = '?';
strp = my_stpcpy(strp, pieces->query);
}
if (u & T_fragment) {
expect |= T_fragment;
*strp++ = '#';
strp = my_stpcpy(strp, pieces->fragment);
}
*strp = 0;
sub = apr_pool_sub_make(r->pool);
status = ap_parse_uri_components(sub, input_uri, &result);
if (status == HTTP_OK) {
#define CHECK(f) \
if ((expect & T_##f) \
&& (result.f == NULL || strcmp(result.f, pieces->f))) { \
status = HTTP_INTERNAL_SERVER_ERROR; \
} \
else if (!(expect & T_##f) && result.f != NULL) { \
status = HTTP_INTERNAL_SERVER_ERROR; \
}
CHECK(scheme)
CHECK(user)
CHECK(password)
CHECK(hostname)
CHECK(port_str)
CHECK(path)
CHECK(query)
CHECK(fragment)
#undef CHECK
}
if (status != HTTP_OK) {
ap_rprintf(r, "<tr><td>%d</td><td>0x%02x</td><td>0x%02x</td><td>%d</td><td>\"%s\"</td>", row, u, expect, status, input_uri);
#define DUMP(f) \
if (result.f) { \
ap_rvputs(r, "<td>\"", result.f, "\"<br>", NULL); \
} \
else { \
ap_rputs("<td>NULL<br>", r); \
} \
if (expect & T_##f) { \
ap_rvputs(r, "\"", pieces->f, "\"</td>", NULL); \
} \
else { \
ap_rputs("NULL</td>", r); \
}
DUMP(scheme);
DUMP(user);
DUMP(password);
DUMP(hostname);
DUMP(port_str);
DUMP(path);
DUMP(query);
DUMP(fragment);
#undef DUMP
ap_rputs("</tr>\n", r);
++failures;
}
apr_pool_destroy(sub);
}
return failures;
}
static int test_util_uri(request_rec *r)
{
unsigned total_failures;
int i;
r->allowed |= (1 << M_GET);
if (r->method_number != M_GET)
return DECLINED;
r->content_type = "text/html";
if(r->header_only) {
return 0;
}
ap_hard_timeout("test_util_uri", r);
ap_rputs(
DOCTYPE_HTML_2_0 "
<html><body>
<p>Key:
<dl>
<dt>row
<dd>entry number in the uri_tests array
<dt>u
<dd>fields under test
<dt>expected
<dd>fields expected in the result
<dt>status
<dd>response from parse_uri_components, or 500 if unexpected results
<dt>input uri
<dd>the uri given to parse_uri_components
</dl>
<p>The remaining fields are the pieces returned from parse_uri_components, and
the values we expected for each piece (resp.).
<p>Only failures are displayed.
<p>
<table><tr><th>row</th><th>u</th><th>expect</th><th>status</th><th>input uri</th>", r);
#define HEADER(f) ap_rprintf(r, "<th>" #f "<br>0x%02x</th>", T_##f)
HEADER(scheme);
HEADER(user);
HEADER(password);
HEADER(hostname);
HEADER(port_str);
HEADER(path);
HEADER(query);
HEADER(fragment);
#undef HEADER
if (r->args) {
i = atoi(r->args);
total_failures = iterate_pieces(r, &uri_tests[i], i);
}
else {
total_failures = 0;
for (i = 0; i < sizeof(uri_tests) / sizeof(uri_tests[0]); ++i) {
total_failures += iterate_pieces(r, &uri_tests[i], i);
if (total_failures > 256) {
ap_rprintf(r, "</table>\n<b>Stopped early to save your browser "
"from certain death!</b>\nTOTAL FAILURES = %u\n",
total_failures);
return OK;
}
}
}
ap_rprintf(r, "</table>\nTOTAL FAILURES = %u\n", total_failures);
return OK;
}
static const handler_rec test_util_uri_handlers[] =
{
{"test-util-uri", test_util_uri},
{NULL}
};
module test_util_uri_module = {
STANDARD_MODULE_STUFF,
NULL, /* initializer */
NULL, /* dir config creater */
NULL, /* dir merger --- default is to override */
NULL, /* server config */
NULL, /* merge server config */
NULL, /* command apr_table_t */
test_util_uri_handlers, /* handlers */
NULL, /* filename translation */
NULL, /* check_user_id */
NULL, /* check auth */
NULL, /* check access */
NULL, /* type_checker */
NULL, /* fixups */
NULL, /* logger */
NULL /* header parser */
};