Add and fix some preliminary tests
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6e9109df4c
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8aa232d32e
@ -130,10 +130,12 @@ tolower_ascii_strxfrm (char *dest, const char *src, size_t n)
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static int
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strcasecmp_ascii (const char *a, const char *b)
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{
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while (*a && *b)
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if (tolower_ascii (*a) != tolower_ascii (*b))
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break;
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return *a - *b;
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while (*a && tolower_ascii (*a) == tolower_ascii (*b))
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{
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a++;
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b++;
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}
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return *(const unsigned char *) a - *(const unsigned char *) b;
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}
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static bool
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@ -145,6 +147,7 @@ isspace_ascii (int c)
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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/// Return a pointer to the next UTF-8 character, or NULL on error
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// TODO: decode the sequence while we're at it
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static const char *
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utf8_next (const char *s, size_t len)
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{
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@ -170,18 +173,21 @@ utf8_next (const char *s, size_t len)
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tail_len++;
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}
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p++;
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// Check the rest of the sequence
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if (tail_len < --len)
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if (tail_len > --len)
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return NULL;
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while (tail_len--)
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if ((*++p & 0xC0) != 0x80)
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if ((*p++ & 0xC0) != 0x80)
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return NULL;
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return (const char *) p;
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}
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/// Very rough UTF-8 validation, just makes sure codepoints can be iterated
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// TODO: also validate the codepoints
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static bool
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utf8_validate (const char *s, size_t len)
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{
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@ -1430,6 +1436,8 @@ struct scgi_parser
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static void
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scgi_parser_init (struct scgi_parser *self)
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{
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memset (self, 0, sizeof *self);
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str_init (&self->input);
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str_map_init (&self->headers);
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self->headers.free = free;
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@ -1705,6 +1713,7 @@ ws_parser_unmask (struct ws_parser *self)
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static bool
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ws_parser_push (struct ws_parser *self, const void *data, size_t len)
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{
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bool success = false;
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str_append_data (&self->input, data, len);
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struct msg_unpacker unpacker;
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@ -1717,8 +1726,8 @@ ws_parser_push (struct ws_parser *self, const void *data, size_t len)
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uint16_t u16;
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case WS_PARSER_FIXED:
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if (self->input.len < 2)
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return true;
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if (unpacker.len - unpacker.offset < 2)
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goto need_data;
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(void) msg_unpacker_u8 (&unpacker, &u8);
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self->is_fin = (u8 >> 7) & 1;
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@ -1737,59 +1746,59 @@ ws_parser_push (struct ws_parser *self, const void *data, size_t len)
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self->state = WS_PARSER_PAYLOAD_LEN_16;
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else
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self->state = WS_PARSER_MASK;
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str_remove_slice (&self->input, 0, 2);
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break;
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case WS_PARSER_PAYLOAD_LEN_16:
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if (self->input.len < 2)
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return true;
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(void) msg_unpacker_u16 (&unpacker, &u16);
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if (!msg_unpacker_u16 (&unpacker, &u16))
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goto need_data;
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self->payload_len = u16;
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self->state = WS_PARSER_MASK;
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str_remove_slice (&self->input, 0, 2);
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break;
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case WS_PARSER_PAYLOAD_LEN_64:
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if (self->input.len < 8)
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return true;
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(void) msg_unpacker_u64 (&unpacker, &self->payload_len);
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if (!msg_unpacker_u64 (&unpacker, &self->payload_len))
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goto need_data;
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self->state = WS_PARSER_MASK;
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str_remove_slice (&self->input, 0, 8);
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break;
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case WS_PARSER_MASK:
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if (!self->is_masked)
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goto end_of_header;
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if (self->input.len < 4)
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return true;
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(void) msg_unpacker_u32 (&unpacker, &self->mask);
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str_remove_slice (&self->input, 0, 4);
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if (!msg_unpacker_u32 (&unpacker, &self->mask))
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goto need_data;
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end_of_header:
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self->state = WS_PARSER_PAYLOAD;
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if (!self->on_frame_header (self->user_data, self))
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return false;
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goto fail;
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break;
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case WS_PARSER_PAYLOAD:
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if (self->input.len < self->payload_len)
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return true;
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// Move the buffer so that payload data is at the front
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str_remove_slice (&self->input, 0, unpacker.offset);
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// And continue unpacking frames past the payload
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msg_unpacker_init (&unpacker, self->input.str, self->input.len);
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unpacker.offset = self->payload_len;
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if (self->input.len < self->payload_len)
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goto need_data;
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if (self->is_masked)
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ws_parser_unmask (self);
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if (!self->on_frame (self->user_data, self))
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return false;
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goto fail;
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self->state = WS_PARSER_FIXED;
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str_reset (&self->input);
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break;
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}
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need_data:
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success = true;
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fail:
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str_remove_slice (&self->input, 0, unpacker.offset);
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return success;
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}
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// - - Server handler - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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@ -2792,6 +2801,7 @@ struct request_handler g_request_handler_json_rpc =
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static char *
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canonicalize_url_path (const char *path)
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{
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// XXX: this strips any slashes at the end
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struct str_vector v;
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str_vector_init (&v);
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split_str_ignore_empty (path, '/', &v);
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@ -2810,7 +2820,7 @@ canonicalize_url_path (const char *path)
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if (strcmp (dir, ".."))
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str_vector_add (&canonical, dir);
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else if (canonical.len)
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else if (canonical.len > 1)
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// ".." never goes above the root
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str_vector_remove (&canonical, canonical.len - 1);
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}
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@ -3631,6 +3641,186 @@ lock_pid_file (struct server_context *ctx, struct error **e)
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return true;
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}
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// --- Tests -------------------------------------------------------------------
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static void
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test_utf8 (void)
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{
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const char valid [] = "2H₂ + O₂ ⇌ 2H₂O, R = 4.7 kΩ, ⌀ 200 mm";
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const char invalid[] = "\xf0\x90\x28\xbc";
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soft_assert ( utf8_validate (valid, sizeof valid));
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soft_assert (!utf8_validate (invalid, sizeof invalid));
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}
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static void
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test_base64 (void)
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{
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char data[65];
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for (size_t i = 0; i < N_ELEMENTS (data); i++)
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data[i] = i;
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struct str encoded; str_init (&encoded);
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struct str decoded; str_init (&decoded);
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base64_encode (data, sizeof data, &encoded);
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soft_assert (base64_decode (encoded.str, false, &decoded));
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soft_assert (decoded.len == sizeof data);
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soft_assert (!memcmp (decoded.str, data, sizeof data));
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str_free (&encoded);
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str_free (&decoded);
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}
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static void
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test_http_parser (void)
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{
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struct str_map parameters;
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str_map_init (¶meters);
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parameters.key_xfrm = tolower_ascii_strxfrm;
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char *type = NULL;
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char *subtype = NULL;
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soft_assert (http_parse_media_type ("TEXT/html; CHARset=\"utf\\-8\"",
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&type, &subtype, ¶meters));
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soft_assert (!strcasecmp_ascii (type, "text"));
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soft_assert (!strcasecmp_ascii (subtype, "html"));
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soft_assert (parameters.len == 1);
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soft_assert (!strcmp (str_map_find (¶meters, "charset"), "utf-8"));
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str_map_free (¶meters);
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struct http_protocol *protocols;
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soft_assert (http_parse_upgrade ("websocket, HTTP/2.0, , ", &protocols));
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soft_assert (!strcmp (protocols->name, "websocket"));
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soft_assert (!protocols->version);
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soft_assert (!strcmp (protocols->next->name, "HTTP"));
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soft_assert (!strcmp (protocols->next->version, "2.0"));
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soft_assert (!protocols->next->next);
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LIST_FOR_EACH (struct http_protocol, iter, protocols)
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http_protocol_destroy (iter);
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}
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static bool
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test_scgi_parser_on_headers_read (void *user_data)
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{
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struct scgi_parser *parser = user_data;
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soft_assert (parser->headers.len == 4);
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soft_assert (!strcmp (str_map_find (&parser->headers,
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"CONTENT_LENGTH"), "27"));
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soft_assert (!strcmp (str_map_find (&parser->headers,
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"SCGI"), "1"));
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soft_assert (!strcmp (str_map_find (&parser->headers,
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"REQUEST_METHOD"), "POST"));
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soft_assert (!strcmp (str_map_find (&parser->headers,
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"REQUEST_URI"), "/deepthought"));
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return true;
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}
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static bool
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test_scgi_parser_on_content (void *user_data, const void *data, size_t len)
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{
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(void) user_data;
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soft_assert (!strncmp (data, "What is the answer to life?", len));
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return true;
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}
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static void
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test_scgi_parser (void)
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{
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struct scgi_parser parser;
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scgi_parser_init (&parser);
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parser.on_headers_read = test_scgi_parser_on_headers_read;
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parser.on_content = test_scgi_parser_on_content;
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parser.user_data = &parser;
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// This is an example straight from the specification
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const char example[] =
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"70:"
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"CONTENT_LENGTH" "\0" "27" "\0"
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"SCGI" "\0" "1" "\0"
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"REQUEST_METHOD" "\0" "POST" "\0"
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"REQUEST_URI" "\0" "/deepthought" "\0"
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","
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"What is the answer to life?";
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soft_assert (scgi_parser_push (&parser, example, sizeof example, NULL));
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scgi_parser_free (&parser);
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}
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static bool
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test_websockets_on_frame_header (void *user_data, const struct ws_parser *self)
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{
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(void) user_data;
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soft_assert (self->is_fin);
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soft_assert (self->is_masked);
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soft_assert (self->opcode == WS_OPCODE_TEXT);
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return true;
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}
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static bool
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test_websockets_on_frame (void *user_data, const struct ws_parser *self)
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{
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(void) user_data;
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soft_assert (self->input.len == self->payload_len);
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soft_assert (!strncmp (self->input.str, "Hello", self->input.len));
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return true;
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}
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static void
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test_websockets (void)
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{
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char *accept = ws_encode_response_key ("dGhlIHNhbXBsZSBub25jZQ==");
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soft_assert (!strcmp (accept, "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="));
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free (accept);
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struct ws_parser parser;
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ws_parser_init (&parser);
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parser.on_frame_header = test_websockets_on_frame_header;
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parser.on_frame = test_websockets_on_frame;
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parser.user_data = &parser;
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const char frame[] = "\x81\x85\x37\xfa\x21\x3d\x7f\x9f\x4d\x51\x58";
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soft_assert (ws_parser_push (&parser, frame, sizeof frame - 1));
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ws_parser_free (&parser);
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// TODO: test the server handler (happy path)
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}
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static void
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test_misc (void)
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{
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soft_assert ( validate_json_rpc_content_type
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("application/JSON; charset=\"utf-8\""));
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soft_assert (!validate_json_rpc_content_type
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("text/html; charset=\"utf-8\""));
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char *canon = canonicalize_url_path ("///../../../etc/./passwd");
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soft_assert (!strcmp (canon, "/etc/passwd"));
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free (canon);
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}
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int
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test_main (int argc, char *argv[])
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{
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struct test test;
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test_init (&test, argc, argv);
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test_add_simple (&test, "/utf-8", NULL, test_utf8);
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test_add_simple (&test, "/base64", NULL, test_base64);
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test_add_simple (&test, "/http-parser", NULL, test_http_parser);
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test_add_simple (&test, "/scgi-parser", NULL, test_scgi_parser);
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test_add_simple (&test, "/websockets", NULL, test_websockets);
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test_add_simple (&test, "/misc", NULL, test_misc);
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// TODO: write more tests
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return test_run (&test);
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}
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// --- Main program ------------------------------------------------------------
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static void
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@ -3685,6 +3875,7 @@ parse_program_arguments (int argc, char **argv)
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{
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static const struct opt opts[] =
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{
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{ 't', "test", NULL, 0, "self-test" },
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{ 'd', "debug", NULL, 0, "run in debug mode" },
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{ 'h', "help", NULL, 0, "display this help and exit" },
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{ 'V', "version", NULL, 0, "output version information and exit" },
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@ -3701,6 +3892,9 @@ parse_program_arguments (int argc, char **argv)
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while ((c = opt_handler_get (&oh)) != -1)
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switch (c)
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{
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case 't':
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test_main (argc, argv);
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exit (EXIT_SUCCESS);
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case 'd':
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g_debug_mode = true;
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break;
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