mirror of
https://github.com/warmcat/libwebsockets.git
synced 2025-03-16 00:00:07 +01:00
9a1f184915
Headers related to ws or h2 are now elided if the ws or h2 role is not enabled for build. In addition, a new build-time option LWS_WITH_HTTP_UNCOMMON_HEADERS on by default allows removal of less-common http headers to shrink the parser footprint. Minilex is adapted to produce 8 different versions of the lex table, chosen at build-time according to which headers are included in the build. If you don't need the unusual headers, or aren't using h2 or ws, this chops down the size of the ah and the rodata needed to hold the parsing table from 87 strings / pointers to 49, and the parsing table from 1177 to 696 bytes.
135 lines
2.6 KiB
C
135 lines
2.6 KiB
C
/* set of parsable strings -- ALL LOWER CASE */
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static const char * const set[] = {
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"get ",
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"post ",
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#if defined(LWS_WITH_HTTP_UNCOMMON_HEADERS)
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"options ",
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#endif
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"host:",
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"connection:",
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"upgrade:",
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"origin:",
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#if defined(LWS_ROLE_WS)
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"sec-websocket-draft:",
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#endif
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"\x0d\x0a",
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#if defined(LWS_ROLE_WS)
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"sec-websocket-extensions:",
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"sec-websocket-key1:",
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"sec-websocket-key2:",
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"sec-websocket-protocol:",
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"sec-websocket-accept:",
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"sec-websocket-nonce:",
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#endif
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"http/1.1 ",
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#if defined(LWS_ROLE_H2)
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"http2-settings:",
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#endif
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"accept:",
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#if defined(LWS_WITH_HTTP_UNCOMMON_HEADERS)
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"access-control-request-headers:",
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#endif
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"if-modified-since:",
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"if-none-match:",
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"accept-encoding:",
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"accept-language:",
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"pragma:",
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"cache-control:",
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"authorization:",
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"cookie:",
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"content-length:",
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"content-type:",
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"date:",
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"range:",
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#if defined(LWS_WITH_HTTP_UNCOMMON_HEADERS) || defined(LWS_ROLE_H2)
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"referer:",
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#endif
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#if defined(LWS_ROLE_WS)
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"sec-websocket-key:",
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"sec-websocket-version:",
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"sec-websocket-origin:",
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#endif
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#if defined(LWS_ROLE_H2)
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":authority",
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":method",
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":path",
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":scheme",
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":status",
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#endif
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#if defined(LWS_WITH_HTTP_UNCOMMON_HEADERS) || defined(LWS_ROLE_H2)
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"accept-charset:",
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#endif
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"accept-ranges:",
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#if defined(LWS_WITH_HTTP_UNCOMMON_HEADERS) || defined(LWS_ROLE_H2)
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"access-control-allow-origin:",
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#endif
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"age:",
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"allow:",
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"content-disposition:",
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"content-encoding:",
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"content-language:",
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"content-location:",
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"content-range:",
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"etag:",
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"expect:",
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"expires:",
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"from:",
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"if-match:",
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"if-range:",
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"if-unmodified-since:",
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"last-modified:",
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"link:",
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"location:",
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#if defined(LWS_WITH_HTTP_UNCOMMON_HEADERS) || defined(LWS_ROLE_H2)
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"max-forwards:",
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"proxy-authenticate:",
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"proxy-authorization:",
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#endif
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"refresh:",
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"retry-after:",
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"server:",
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"set-cookie:",
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#if defined(LWS_WITH_HTTP_UNCOMMON_HEADERS) || defined(LWS_ROLE_H2)
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"strict-transport-security:",
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#endif
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"transfer-encoding:",
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#if defined(LWS_WITH_HTTP_UNCOMMON_HEADERS) || defined(LWS_ROLE_H2)
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"user-agent:",
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"vary:",
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"via:",
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"www-authenticate:",
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#endif
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#if defined(LWS_WITH_HTTP_UNCOMMON_HEADERS)
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"patch",
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"put",
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"delete",
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#endif
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"uri-args", /* fake header used for uri-only storage */
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#if defined(LWS_WITH_HTTP_UNCOMMON_HEADERS)
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"proxy ",
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"x-real-ip:",
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#endif
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"http/1.0 ",
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"x-forwarded-for:",
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"connect ",
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"head ",
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#if defined(LWS_WITH_HTTP_UNCOMMON_HEADERS) || defined(LWS_ROLE_H2)
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"te:", /* http/2 wants it to reject it */
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"replay-nonce:", /* ACME */
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#endif
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#if defined(LWS_ROLE_H2)
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":protocol", /* defined in mcmanus-httpbis-h2-ws-02 */
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#endif
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"x-auth-token:",
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"", /* not matchable */
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};
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