[PATCH v2 3/4] urlmatch: split host and port fields in `struct url_info`
- From
Patrick Steinhardt <patrick.steinhardt@elego.de>
- Date
- Jan 24, 2017, 17:00 UTC
- Message-ID
- <20170124170031.18069-4-patrick.steinhardt@elego.de>
- In-Reply-To
- <20170124170031.18069-1-patrick.steinhardt@elego.de>
The `url_info` structure contains information about a normalized URL with the URL's components being represented by different fields. The host and port part though are to be accessed by the same `host` field, so that getting the host and/or port separately becomes more involved than really necessary.
To make the port more readily accessible, split up the host and port fields. Namely, the `host_len` will not include the port length anymore and a new `port_off` field has been added which includes the offset to the port, if available.
The only user of these fields is `url_normalize_1`. This change makes it easier later on to treat host and port differently when introducing globs for domains.
Signed-off-by: Patrick Steinhardt <patrick.steinhardt@elego.de> --- urlmatch.c | 16 ++++++++++++---- urlmatch.h | 9 +++++---- 2 files changed, 17 insertions(+), 8 deletions(-)
diff --git a/urlmatch.c b/urlmatch.c index d350478c0..e328905eb 100644 --- a/urlmatch.c +++ b/urlmatch.c @@ -104,7 +104,7 @@ static char *url_normalize_1(const char *url, struct url_info *out_info, char al struct strbuf norm; size_t spanned; size_t scheme_len, user_off=0, user_len=0, passwd_off=0, passwd_len=0; - size_t host_off=0, host_len=0, port_len=0, path_off, path_len, result_len; + size_t host_off=0, host_len=0, port_off=0, port_len=0, path_off, path_len, result_len; const char *slash_ptr, *at_ptr, *colon_ptr, *path_start; char *result; @@ -263,6 +263,7 @@ static char *url_normalize_1(const char *url, struct url_info *out_info, char al return NULL; } strbuf_addch(&norm, ':'); + port_off = norm.len; strbuf_add(&norm, url, slash_ptr - url); port_len = slash_ptr - url; } @@ -270,7 +271,7 @@ static char *url_normalize_1(const char *url, struct url_info *out_info, char al url = slash_ptr; } if (host_off) - host_len = norm.len - host_off; + host_len = norm.len - host_off - (port_len ? port_len + 1 : 0); /* @@ -378,6 +379,7 @@ static char *url_normalize_1(const char *url, struct url_info *out_info, char al out_info->passwd_len = passwd_len; out_info->host_off = host_off; out_info->host_len = host_len; + out_info->port_off = port_off; out_info->port_len = port_len; out_info->path_off = path_off; out_info->path_len = path_len; @@ -464,11 +466,17 @@ static int match_urls(const struct url_info *url, usermatched = 1; } - /* check the host and port */ + /* check the host */ if (url_prefix->host_len != url->host_len || strncmp(url->url + url->host_off, url_prefix->url + url_prefix->host_off, url->host_len)) - return 0; /* host names and/or ports do not match */ + return 0; /* host names do not match */ + + /* check the port */ + if (url_prefix->port_len != url->port_len || + strncmp(url->url + url->port_off, + url_prefix->url + url_prefix->port_off, url->port_len)) + return 0; /* ports do not match */ /* check the path */ pathmatchlen = url_match_prefix( diff --git a/urlmatch.h b/urlmatch.h index 528862adc..0ea812b03 100644 --- a/urlmatch.h +++ b/urlmatch.h @@ -18,11 +18,12 @@ struct url_info { size_t passwd_len; /* length of passwd; if passwd_off != 0 but passwd_len == 0, an empty passwd was given */ size_t host_off; /* offset into url to start of host name (0 => none) */ - size_t host_len; /* length of host name; this INCLUDES any ':portnum'; + size_t host_len; /* length of host name; * file urls may have host_len == 0 */ - size_t port_len; /* if a portnum is present (port_len != 0), it has - * this length (excluding the leading ':') at the - * end of the host name (always 0 for file urls) */ + size_t port_off; /* offset into url to start of port number (0 => none) */ + size_t port_len; /* if a portnum is present (port_off != 0), it has + * this length (excluding the leading ':') starting + * from port_off (always 0 for file urls) */ size_t path_off; /* offset into url to the start of the url path; * this will always point to a '/' character * after the url has been normalized */
-- 2.11.0