diff options
Diffstat (limited to 'src/common/url.c')
| -rw-r--r-- | src/common/url.c | 235 |
1 files changed, 141 insertions, 94 deletions
diff --git a/src/common/url.c b/src/common/url.c index 892441c8..be2cd788 100644 --- a/src/common/url.c +++ b/src/common/url.c @@ -32,15 +32,22 @@ void *url_tree = NULL; GTree *url_btree = NULL; -static int do_an_re (const char *word, int *start, int *end, int *type); -static GRegex *re_url (void); -static GRegex *re_host (void); -static GRegex *re_host6 (void); -static GRegex *re_email (void); -static GRegex *re_nick (void); -static GRegex *re_channel (void); -static GRegex *re_path (void); - +static gboolean regex_match (const GRegex *re, const char *word, + int *start, int *end); +static const GRegex *re_url (void); +static const GRegex *re_host (void); +static const GRegex *re_host6 (void); +static const GRegex *re_email (void); +static const GRegex *re_nick (void); +static const GRegex *re_channel (void); +static const GRegex *re_path (void); +static gboolean match_nick (const char *word, int *start, int *end); +static gboolean match_channel (const char *word, int *start, int *end); +static gboolean match_email (const char *word, int *start, int *end); +static gboolean match_url (const char *word, int *start, int *end); +static gboolean match_host (const char *word, int *start, int *end); +static gboolean match_host6 (const char *word, int *start, int *end); +static gboolean match_path (const char *word, int *start, int *end); static int url_free (char *url, void *data) @@ -189,50 +196,108 @@ static int laststart = 0; static int lastend = 0; static int lasttype = 0; -static int -strchrs (char c, char *s) -{ - while (*s) - if (c == *s++) - return TRUE; - return FALSE; -} +#define NICKPRE "~+!@%&" +#define CHANPRE "#&!+" -#define NICKPRE "~+!@%%&" int url_check_word (const char *word) { + struct { + gboolean (*match) (const char *word, int *start, int *end); + int type; + } m[] = { + { match_url, WORD_URL }, + { match_email, WORD_EMAIL }, + { match_nick, WORD_NICK }, + { match_channel, WORD_CHANNEL }, + { match_host6, WORD_HOST6 }, + { match_host, WORD_HOST }, + { match_path, WORD_PATH }, + { NULL, 0} + }; + int i; + laststart = lastend = lasttype = 0; - if (do_an_re (word, &laststart, &lastend, &lasttype)) - { - switch (lasttype) + + for (i = 0; m[i].match; i++) + if (m[i].match (word, &laststart, &lastend)) { - char *str; - - case WORD_NICK: - if (strchrs (word[laststart], NICKPRE)) - laststart++; - str = g_strndup (&word[laststart], lastend - laststart); - if (!userlist_find (current_sess, str)) - lasttype = 0; - g_free (str); - return lasttype; - case WORD_EMAIL: - if (!isalnum (word[laststart])) - laststart++; - /* Fall through */ - case WORD_URL: - case WORD_HOST: - case WORD_HOST6: - case WORD_CHANNEL: - case WORD_PATH: - return lasttype; - default: - return 0; /* Should not occur */ + lasttype = m[i].type; + return lasttype; } - } - else - return 0; + + return 0; +} + +static gboolean +match_nick (const char *word, int *start, int *end) +{ + const server *serv = current_sess->server; + const char *nick_prefixes = serv ? serv->nick_prefixes : NICKPRE; + char *str; + + if (!regex_match (re_nick (), word, start, end)) + return FALSE; + + /* ignore matches with prefixes that the server doesn't use */ + if (strchr (NICKPRE, word[*start]) + && !strchr (nick_prefixes, word[*start])) + return FALSE; + + /* nick prefix is not part of the matched word */ + if (strchr (nick_prefixes, word[*start])) + (*start)++; + + str = g_strndup (&word[*start], *end - *start); + + if (!userlist_find (current_sess, str)) + return FALSE; + + g_free (str); + + return TRUE; +} + +static gboolean +match_channel (const char *word, int *start, int *end) +{ + const server *serv = current_sess->server; + const char *chan_prefixes = serv ? serv->chantypes : CHANPRE; + + if (!regex_match (re_channel (), word, start, end)) + return FALSE; + + return strchr (chan_prefixes, word[*start]) != NULL; +} + +static gboolean +match_email (const char *word, int *start, int *end) +{ + return regex_match (re_email (), word, start, end); +} + +static gboolean +match_url (const char *word, int *start, int *end) +{ + return regex_match (re_url (), word, start, end); +} + +static gboolean +match_host (const char *word, int *start, int *end) +{ + return regex_match (re_host (), word, start, end); +} + +static gboolean +match_host6 (const char *word, int *start, int *end) +{ + return regex_match (re_host6 (), word, start, end); +} + +static gboolean +match_path (const char *word, int *start, int *end) +{ + return regex_match (re_path (), word, start, end); } /* List of IRC commands for which contents (and thus possible URLs) @@ -307,46 +372,28 @@ url_last (int *lstart, int *lend) return lasttype; } -static int -do_an_re(const char *word, int *start, int *end, int *type) +static gboolean +regex_match (const GRegex *re, const char *word, int *start, int *end) { - typedef struct func_s { - GRegex *(*fn)(void); - int type; - } func_t; - func_t funcs[] = - { - { re_url, WORD_URL }, - { re_email, WORD_EMAIL }, - { re_channel, WORD_CHANNEL }, - { re_host6, WORD_HOST6 }, - { re_host, WORD_HOST }, - { re_path, WORD_PATH }, - { re_nick, WORD_NICK } - }; - GMatchInfo *gmi; - int k; - for (k = 0; k < sizeof funcs / sizeof (func_t); k++) + g_regex_match (re, word, 0, &gmi); + + if (!g_match_info_matches (gmi)) { - g_regex_match (funcs[k].fn(), word, 0, &gmi); - if (!g_match_info_matches (gmi)) - { - g_match_info_free (gmi); - continue; - } - while (g_match_info_matches (gmi)) - { - g_match_info_fetch_pos (gmi, 0, start, end); - g_match_info_next (gmi, NULL); - } g_match_info_free (gmi); - *type = funcs[k].type; - return TRUE; + return FALSE; } - - return FALSE; + + while (g_match_info_matches (gmi)) + { + g_match_info_fetch_pos (gmi, 0, start, end); + g_match_info_next (gmi, NULL); + } + + g_match_info_free (gmi); + + return TRUE; } /* Miscellaneous description --- */ @@ -376,7 +423,7 @@ make_re (char *grist) /* HOST description --- */ /* (see miscellaneous above) */ -static GRegex * +static const GRegex * re_host (void) { static GRegex *host_ret; @@ -384,7 +431,7 @@ re_host (void) if (host_ret) return host_ret; - grist = g_strdup_printf ( + grist = g_strdup ( "(" "(" HOST_URL PORT ")|(" HOST ")" ")" @@ -393,7 +440,7 @@ re_host (void) return host_ret; } -static GRegex * +static const GRegex * re_host6 (void) { static GRegex *host6_ret; @@ -401,7 +448,7 @@ re_host6 (void) if (host6_ret) return host6_ret; - grist = g_strdup_printf ( + grist = g_strdup ( "(" "(" IPV6ADDR ")|(" "\\[" IPV6ADDR "\\]" PORT ")" ")" @@ -489,7 +536,7 @@ struct { NULL, "", 0} }; -static GRegex * +static const GRegex * re_url (void) { static GRegex *url_ret = NULL; @@ -546,7 +593,7 @@ re_url (void) /* EMAIL description --- */ #define EMAIL "[a-z][-_a-z0-9]+@" "(" HOST_URL ")" -static GRegex * +static const GRegex * re_email (void) { static GRegex *email_ret; @@ -554,7 +601,7 @@ re_email (void) if (email_ret) return email_ret; - grist = g_strdup_printf ( + grist = g_strdup ( "(" EMAIL ")" @@ -582,7 +629,7 @@ re_email (void) #define NICK1 "[" NICKHYP NICKLET NICKDIG NICKSPE "]*" #define NICK NICK0 NICK1 -static GRegex * +static const GRegex * re_nick (void) { static GRegex *nick_ret; @@ -590,7 +637,7 @@ re_nick (void) if (nick_ret) return nick_ret; - grist = g_strdup_printf ( + grist = g_strdup ( "(" NICK ")" @@ -600,9 +647,9 @@ re_nick (void) } /* CHANNEL description --- */ -#define CHANNEL "#[^ \t\a,:]+" +#define CHANNEL "[" CHANPRE "][^ \t\a,:]+" -static GRegex * +static const GRegex * re_channel (void) { static GRegex *channel_ret; @@ -610,7 +657,7 @@ re_channel (void) if (channel_ret) return channel_ret; - grist = g_strdup_printf ( + grist = g_strdup ( "(" CHANNEL ")" @@ -628,7 +675,7 @@ re_channel (void) #define FS_PATH "^(/|\\./|\\.\\./).*" #endif -static GRegex * +static const GRegex * re_path (void) { static GRegex *path_ret; @@ -636,7 +683,7 @@ re_path (void) if (path_ret) return path_ret; - grist = g_strdup_printf ( + grist = g_strdup ( "(" FS_PATH ")" |