117 lines
3.1 KiB
Ragel
117 lines
3.1 KiB
Ragel
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#include <lighttpd/base.h>
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#include <lighttpd/url_parser.h>
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#include <stdlib.h>
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%%{
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machine url_parser;
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action mark { mark = fpc; }
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action mark_host { host_mark = fpc; }
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action save_host {
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g_string_truncate(uri->host, 0);
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g_string_append_len(uri->host, host_mark, fpc - host_mark);
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g_string_ascii_down(uri->host);
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}
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action save_authority {
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g_string_truncate(uri->authority, 0);
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g_string_append_len(uri->authority, mark, fpc - mark);
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g_string_ascii_down(uri->authority);
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}
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action save_path {
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g_string_append_len(uri->path, mark, fpc - mark);
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g_string_append_len(uri->raw_path, mark, fpc - mark);
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}
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action save_query {
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g_string_append_len(uri->query, mark, fpc - mark);
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g_string_append_len(uri->raw_path, mark-1, fpc - mark+1); /* include '?' in append */
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}
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action save_scheme {
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g_string_append_len(uri->scheme, mark, fpc - mark);
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}
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pct_encoded = "%" xdigit xdigit;
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gen_delims = ":" | "/" | "?" | "#" | "[" | "]" | "@";
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sub_delims = "!" | "$" | "&" | "'" | "(" | ")"
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| "*" | "+" | "," | ";" | "=";
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reserved = gen_delims | sub_delims;
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unreserved = alpha | digit | "-" | "." | "_" | "~";
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# many clients don't encode these, e.g. curl, wget, ...
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delims = "<" | ">" | "#" | "%" | '"';
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unwise = " " | "{" | "}" | "|" | "\\" | "^" | "[" | "]" | "`";
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pchar = unreserved | pct_encoded | sub_delims | ":" | "@" | delims | unwise;
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path = ("/" ( "/" | pchar)*) >mark %save_path;
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# scheme = alpha *( alpha | digit | "+" | "-" | "." );
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scheme = "http" | "https";
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#simple ipv4 address
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dec_octet = digit{1,3};
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IPv4address = dec_octet "." dec_octet "." dec_octet "." dec_octet;
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IPvFuture = "v" xdigit+ "." ( unreserved | sub_delims | ":" )+;
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# simple ipv6 address
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IPv6address = (":" | xdigit)+ IPv4address?;
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IP_literal = "[" ( IPv6address | IPvFuture ) "]";
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reg_name = ( unreserved | pct_encoded | sub_delims )+;
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userinfo = ( unreserved | pct_encoded | sub_delims | ":" )*;
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host = IP_literal | IPv4address | reg_name;
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port = digit+;
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authority = ( userinfo "@" )? (host >mark_host %save_host) ( ":" port )?;
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query = ( pchar | "/" | "?" )* >mark %save_query;
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fragment = ( pchar | "/" | "?" )*;
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URI_path = (path ( "?" query )?) ( "#" fragment )?;
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URI = (scheme >mark %save_scheme) "://" (authority >mark %save_authority) URI_path;
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parse_URI := URI | ("*" >mark %save_path) | URI_path;
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parse_Hostname := (host >mark_host %save_host) ( ":" port )?;
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write data;
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}%%
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gboolean li_parse_raw_url(liRequestUri *uri) {
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const char *p, *pe, *eof;
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const char *mark = NULL, *host_mark = NULL;
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int cs;
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p = uri->raw->str;
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eof = pe = uri->raw->str + uri->raw->len;
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%% write init nocs;
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cs = url_parser_en_parse_URI;
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%% write exec;
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return (cs >= url_parser_first_final);
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}
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gboolean li_parse_hostname(liRequestUri *uri) {
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const char *p, *pe, *eof;
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const char *mark = NULL, *host_mark = NULL;
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int cs;
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g_string_ascii_down(uri->authority);
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p = uri->authority->str;
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eof = pe = uri->authority->str + uri->authority->len;
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%% write init nocs;
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cs = url_parser_en_parse_Hostname;
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%% write exec;
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return (cs >= url_parser_first_final);
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}
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