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034-match.t
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# vim:set ft= ts=4 sw=4 et fdm=marker:
use Test::Nginx::Socket::Lua;
#worker_connections(1014);
#master_on();
#workers(2);
#log_level('warn');
repeat_each(2);
plan tests => repeat_each() * (blocks() * 2 + 16);
#no_diff();
no_long_string();
run_tests();
__DATA__
=== TEST 1: sanity
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "([0-9]+)")
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
1234
=== TEST 2: escaping sequences
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "(\\\\d+)")
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
1234
=== TEST 3: escaping sequences (bad)
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "(\\d+)")
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body_like: 500 Internal Server Error
--- error_log eval
[qr/invalid escape sequence near '"\('/]
--- error_code: 500
=== TEST 4: escaping sequences in [[ ... ]]
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "[[\\d+]]")
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body_like: 500 Internal Server Error
--- error_log eval
[qr/invalid escape sequence near '"\[\['/]
--- error_code: 500
=== TEST 5: single capture
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "([0-9]{2})[0-9]+")
if m then
ngx.say(m[0])
ngx.say(m[1])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
1234
12
=== TEST 6: multiple captures
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "([a-z]+).*?([0-9]{2})[0-9]+", "")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m[2])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
hello, 1234
hello
12
=== TEST 7: multiple captures (with o)
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "([a-z]+).*?([0-9]{2})[0-9]+", "o")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m[2])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
hello, 1234
hello
12
=== TEST 8: not matched
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "foo")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
';
}
--- request
GET /re
--- response_body
not matched: nil
=== TEST 9: case sensitive by default
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "HELLO")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
';
}
--- request
GET /re
--- response_body
not matched: nil
=== TEST 10: case insensitive
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "HELLO", "i")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
';
}
--- request
GET /re
--- response_body
hello
=== TEST 11: UTF-8 mode
--- config
location /re {
content_by_lua '
local rc, err = pcall(ngx.re.match, "hello章亦春", "HELLO.{2}", "iu")
if not rc then
ngx.say("FAIL: ", err)
return
end
local m = err
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
';
}
--- request
GET /re
--- response_body_like chop
^(?:FAIL: bad argument \#2 to '\?' \(pcre_compile\(\) failed: this version of PCRE is not compiled with PCRE_UTF8 support in "HELLO\.\{2\}" at "HELLO\.\{2\}"\)|hello章亦)$
=== TEST 12: multi-line mode (^ at line head)
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello\\nworld", "^world", "m")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
';
}
--- request
GET /re
--- response_body
world
=== TEST 13: multi-line mode (. does not match \n)
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello\\nworld", ".*", "m")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
';
}
--- request
GET /re
--- response_body
hello
=== TEST 14: single-line mode (^ as normal)
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello\\nworld", "^world", "s")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
';
}
--- request
GET /re
--- response_body
not matched: nil
=== TEST 15: single-line mode (dot all)
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello\\nworld", ".*", "s")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
';
}
--- request
GET /re
--- response_body
hello
world
=== TEST 16: extended mode (ignore whitespaces)
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello\\nworld", "\\\\w \\\\w", "x")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
';
}
--- request
GET /re
--- response_body
he
=== TEST 17: bad pattern
--- config
location /re {
content_by_lua '
local m, err = ngx.re.match("hello\\nworld", "(abc")
if m then
ngx.say(m[0])
else
if err then
ngx.say("error: ", err)
else
ngx.say("not matched: ", m)
end
end
';
}
--- request
GET /re
--- response_body eval
$Test::Nginx::Util::PcreVersion == 2 ?
"error: pcre2_compile() failed: missing closing parenthesis in \"(abc\"\n"
:
"error: pcre_compile() failed: missing ) in \"(abc\"\n"
--- no_error_log
[error]
=== TEST 18: bad option
--- config
location /re {
content_by_lua '
local rc, m = pcall(ngx.re.match, "hello\\nworld", ".*", "Hm")
if rc then
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
else
ngx.say("error: ", m)
end
';
}
--- request
GET /re
--- response_body_like chop
error: .*?unknown flag "H" \(flags "Hm"\)
=== TEST 19: extended mode (ignore whitespaces)
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, world", "(world)|(hello)", "x")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m[2])
else
ngx.say("not matched: ", m)
end
';
}
--- request
GET /re
--- response_body
hello
false
hello
=== TEST 20: optional trailing captures
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "([0-9]+)(h?)")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m[2])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body eval
"1234
1234
"
=== TEST 21: anchored match (failed)
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "([0-9]+)", "a")
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
not matched!
=== TEST 22: anchored match (succeeded)
--- config
location /re {
content_by_lua '
local m = ngx.re.match("1234, hello", "([0-9]+)", "a")
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
1234
=== TEST 23: match with ctx but no pos
--- config
location /re {
content_by_lua '
local ctx = {}
local m = ngx.re.match("1234, hello", "([0-9]+)", "", ctx)
if m then
ngx.say(m[0])
ngx.say(ctx.pos)
else
ngx.say("not matched!")
ngx.say(ctx.pos)
end
';
}
--- request
GET /re
--- response_body
1234
5
=== TEST 24: match with ctx and a pos
--- config
location /re {
content_by_lua '
local ctx = { pos = 3 }
local m = ngx.re.match("1234, hello", "([0-9]+)", "", ctx)
if m then
ngx.say(m[0])
ngx.say(ctx.pos)
else
ngx.say("not matched!")
ngx.say(ctx.pos)
end
';
}
--- request
GET /re
--- response_body
34
5
=== TEST 25: sanity (set_by_lua)
--- config
location /re {
set_by_lua $res '
local m = ngx.re.match("hello, 1234", "([0-9]+)")
if m then
return m[0]
else
return "not matched!"
end
';
echo $res;
}
--- request
GET /re
--- response_body
1234
=== TEST 26: match (look-behind assertion)
--- config
location /re {
content_by_lua '
local ctx = {}
local m = ngx.re.match("{foobarbaz}", "(?<=foo)bar|(?<=bar)baz", "", ctx)
ngx.say(m and m[0])
m = ngx.re.match("{foobarbaz}", "(?<=foo)bar|(?<=bar)baz", "", ctx)
ngx.say(m and m[0])
';
}
--- request
GET /re
--- response_body
bar
baz
=== TEST 27: escaping sequences
--- config
location /re {
content_by_lua_file html/a.lua;
}
--- user_files
>>> a.lua
local m = ngx.re.match("hello, 1234", "(\\\s+)")
if m then
ngx.say("[", m[0], "]")
else
ngx.say("not matched!")
end
--- request
GET /re
--- response_body_like: 500 Internal Server Error
--- error_log eval
[qr/invalid escape sequence near '"\(\\'/]
--- error_code: 500
=== TEST 28: escaping sequences
--- config
location /re {
access_by_lua_file html/a.lua;
content_by_lua return;
}
--- user_files
>>> a.lua
local uri = "<impact>2</impact>"
local regex = '(?:>[\\w\\s]*</?\\w{2,}>)';
ngx.say("regex: ", regex)
local m = ngx.re.match(uri, regex, "oi")
if m then
ngx.say("[", m[0], "]")
else
ngx.say("not matched!")
end
--- request
GET /re
--- response_body
regex: (?:>[\w\s]*</?\w{2,}>)
[>2</impact>]
=== TEST 29: long brackets
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", [[\\d+]])
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
1234
=== TEST 30: bad pattern
--- config
location /re {
content_by_lua '
local m, err = ngx.re.match("hello, 1234", "([0-9]+")
if m then
ngx.say(m[0])
else
if err then
ngx.say("error: ", err)
else
ngx.say("not matched!")
end
end
';
}
--- request
GET /re
--- response_body eval
$Test::Nginx::Util::PcreVersion == 2 ?
"error: pcre2_compile\(\) failed: missing closing parenthesis in \"\([0-9]+\"\n"
:
"error: pcre_compile\(\) failed: missing \) in \"\([0-9]+\"\n"
--- no_error_log
[error]
=== TEST 31: long brackets containing [...]
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", [[([0-9]+)]])
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
1234
=== TEST 32: bug report (github issue #72)
--- config
location /re {
content_by_lua '
ngx.re.match("hello", "hello", "j")
ngx.say("done")
';
header_filter_by_lua '
ngx.re.match("hello", "world", "j")
';
}
--- request
GET /re
--- response_body
done
=== TEST 33: bug report (github issue #72)
--- config
location /re {
content_by_lua '
ngx.re.match("hello", "hello", "j")
ngx.exec("/foo")
';
}
location /foo {
content_by_lua '
ngx.re.match("hello", "world", "j")
ngx.say("done")
';
}
--- request
GET /re
--- response_body
done
=== TEST 34: non-empty subject, empty pattern
--- config
location /re {
content_by_lua '
local ctx = {}
local m = ngx.re.match("hello, 1234", "", "", ctx)
if m then
ngx.say("pos: ", ctx.pos)
ngx.say("m: ", m[0])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
pos: 1
m:
--- no_error_log
[error]
=== TEST 35: named subpatterns w/ extraction
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "(?<first>[a-z]+), [0-9]+")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m.first)
ngx.say(m.second)
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
hello, 1234
hello
hello
nil
=== TEST 36: duplicate named subpatterns w/ extraction
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, 1234", "(?<first>[a-z]+), (?<first>[0-9]+)", "D")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m[2])
ngx.say(table.concat(m.first,"-"))
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
hello, 1234
hello
1234
hello-1234
=== TEST 37: named captures are empty strings
--- config
location /re {
content_by_lua '
local m = ngx.re.match("1234", "(?<first>[a-z]*)([0-9]+)")
if m then
ngx.say(m[0])
ngx.say(m.first)
ngx.say(m[1])
ngx.say(m[2])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
1234
1234
=== TEST 38: named captures are false
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, world", "(world)|(hello)|(?<named>howdy)")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m[2])
ngx.say(m[3])
ngx.say(m["named"])
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
hello
false
hello
false
false
=== TEST 39: duplicate named subpatterns
--- config
location /re {
content_by_lua '
local m = ngx.re.match("hello, world",
"(?<named>\\\\w+), (?<named>\\\\w+)",
"D")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m[2])
ngx.say(table.concat(m.named,"-"))
else
ngx.say("not matched!")
end
';
}
--- request
GET /re
--- response_body
hello, world
hello
world
hello-world
--- no_error_log
[error]
=== TEST 40: Javascript compatible mode
--- config
location /t {
content_by_lua '
local m = ngx.re.match("章", [[\\u7AE0]], "uJ")
if m then
ngx.say("matched: ", m[0])
else
ngx.say("not matched!")
end
';
}
--- request
GET /t
--- response_body
matched: 章
--- no_error_log
[error]
=== TEST 41: empty duplicate captures
--- config
location = /t {
content_by_lua "
local target = 'test'
local regex = '^(?:(?<group1>(?:foo))|(?<group2>(?:bar))|(?<group3>(?:test)))$'
-- Note the D here
local m = ngx.re.match(target, regex, 'D')
ngx.say(type(m.group1))
ngx.say(type(m.group2))
";
}
--- request
GET /t
--- response_body
nil
nil
--- no_error_log
[error]
=== TEST 42: bad UTF-8
--- config
location = /t {
content_by_lua '
local target = "你好"
local regex = "你好"
-- Note the D here
local m, err = ngx.re.match(string.sub(target, 1, 4), regex, "u")
if err then
ngx.say("error: ", err)
return
end
if m then
ngx.say("matched: ", m[0])
else
ngx.say("not matched")
end
';
}
--- request
GET /t
--- response_body eval
$Test::Nginx::Util::PcreVersion == 2 ?
"error: pcre_exec\(\) failed: -4\n"
:
"error: pcre_exec\(\) failed: -10\n"
--- no_error_log
[error]
=== TEST 43: UTF-8 mode without UTF-8 sequence checks
--- config
location /re {
content_by_lua '
local m = ngx.re.match("你好", ".", "U")
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
';
}
--- stap
probe process("$LIBPCRE_PATH").function("pcre_compile") {
printf("compile opts: %x\n", $options)
}
probe process("$LIBPCRE_PATH").function("pcre_exec") {
printf("exec opts: %x\n", $options)
}
--- stap_out
compile opts: 800
exec opts: 2000
--- request
GET /re
--- response_body
你
--- no_error_log
[error]
=== TEST 44: UTF-8 mode with UTF-8 sequence checks
--- config
location /re {
content_by_lua '
local m = ngx.re.match("你好", ".", "u")
if m then
ngx.say(m[0])