Allow to use extended host patterns and vanilla host patterns at the same time

... by prefixing extended host patterns with "PCRE-HOST-PATTERN:".

Sponsored by: Robert Klemme

diff --git a/jcc.c b/jcc.c
index 69c0180..d29b511 100644 (file)
--- a/jcc.c
+++ b/jcc.c
@@ -587,10 +587,8 @@ static jb_err get_request_destination_elsewhere(struct client_state *csp, struct
    }
    else if (JB_ERR_OK == get_destination_from_headers(headers, csp->http))
    {
-#ifndef FEATURE_EXTENDED_HOST_PATTERNS
       /* Split the domain we just got for pattern matching */
       init_domain_components(csp->http);
-#endif
 
       return JB_ERR_OK;
    }
@@ -2357,10 +2355,8 @@ static jb_err process_encrypted_request(struct client_state *csp)
       return JB_ERR_PARSE;
    }
 
-#ifndef FEATURE_EXTENDED_HOST_PATTERNS
    /* Split the domain we just got for pattern matching */
    init_domain_components(csp->http);
-#endif
 
 #ifdef FEATURE_TOGGLE
    if ((csp->flags & CSP_FLAG_TOGGLED_ON) != 0)

diff --git a/project.h b/project.h
index e241360..4a278cf 100644 (file)
--- a/project.h
+++ b/project.h
@@ -331,11 +331,9 @@ struct http_request
    char *host_ip_addr_str; /**< String with dotted decimal representation
                                 of host's IP. NULL before connect_to() */
 
-#ifndef FEATURE_EXTENDED_HOST_PATTERNS
    char  *dbuffer; /**< Buffer with '\0'-delimited domain name.           */
    char **dvec;    /**< List of pointers to the strings in dbuffer.       */
    int    dcount;  /**< How many parts to this domain? (length of dvec)   */
-#endif /* ndef FEATURE_EXTENDED_HOST_PATTERNS */
 
 #ifdef FEATURE_HTTPS_INSPECTION
    int client_ssl;                                                  /**< Flag if we should communicate with client over ssl   */
@@ -398,12 +396,12 @@ struct url_spec
 {
 #ifdef FEATURE_EXTENDED_HOST_PATTERNS
    regex_t *host_regex;/**< Regex for host matching                          */
-#else
+   enum host_regex_type { VANILLA_HOST_PATTERN, EXTENDED_HOST_PATTERN } host_regex_type;
+#endif /* defined FEATURE_EXTENDED_HOST_PATTERNS */
    char  *dbuffer;     /**< Buffer with '\0'-delimited domain name, or NULL to match all hosts. */
    char **dvec;        /**< List of pointers to the strings in dbuffer.       */
    int    dcount;      /**< How many parts to this domain? (length of dvec)   */
    int    unanchored;  /**< Bitmap - flags are ANCHOR_LEFT and ANCHOR_RIGHT.  */
-#endif /* defined FEATURE_EXTENDED_HOST_PATTERNS */
 
    char  *port_list;   /**< List of acceptable ports, or NULL to match all ports */
 

diff --git a/urlmatch.c b/urlmatch.c
index 6949eed..36699fc 100644 (file)
--- a/urlmatch.c
+++ b/urlmatch.c
@@ -62,7 +62,10 @@ enum regex_anchoring
    RIGHT_ANCHORED,
    RIGHT_ANCHORED_HOST
 };
-static jb_err compile_host_pattern(struct pattern_spec *url, const char *host_pattern);
+static jb_err compile_vanilla_host_pattern(struct pattern_spec *url, const char *host_pattern);
+#ifdef FEATURE_EXTENDED_HOST_PATTERNS
+static jb_err compile_pcre_host_pattern(struct pattern_spec *url, const char *host_pattern);
+#endif
 
 /*********************************************************************
  *
@@ -89,15 +92,12 @@ void free_http_request(struct http_request *http)
    freez(http->path);
    freez(http->version);
    freez(http->host_ip_addr_str);
-#ifndef FEATURE_EXTENDED_HOST_PATTERNS
    freez(http->dbuffer);
    freez(http->dvec);
    http->dcount = 0;
-#endif
 }
 
 
-#ifndef FEATURE_EXTENDED_HOST_PATTERNS
 /*********************************************************************
  *
  * Function    :  init_domain_components
@@ -152,7 +152,6 @@ jb_err init_domain_components(struct http_request *http)
 
    return JB_ERR_OK;
 }
-#endif /* ndef FEATURE_EXTENDED_HOST_PATTERNS */
 
 
 /*********************************************************************
@@ -408,12 +407,8 @@ jb_err parse_http_url(const char *url, struct http_request *http, int require_pr
       freez(buf);
    }
 
-#ifdef FEATURE_EXTENDED_HOST_PATTERNS
-   return JB_ERR_OK;
-#else
    /* Split domain name so we can compare it against wildcards */
    return init_domain_components(http);
-#endif /* def FEATURE_EXTENDED_HOST_PATTERNS */
 
 }
 
@@ -705,6 +700,20 @@ static jb_err compile_url_pattern(struct pattern_spec *url, char *buf)
 {
    char *p;
 
+#ifdef FEATURE_EXTENDED_HOST_PATTERNS
+   const size_t prefix_length = 18;
+   if (strncmpic(buf, "PCRE-HOST-PATTERN:", prefix_length) == 0)
+   {
+      url->pattern.url_spec.host_regex_type = EXTENDED_HOST_PATTERN;
+      /* Overwrite the "PCRE-HOST-PATTERN:" prefix */
+      memmove(buf, buf+prefix_length, strlen(buf+prefix_length)+1);
+   }
+   else
+   {
+      url->pattern.url_spec.host_regex_type = VANILLA_HOST_PATTERN;
+   }
+#endif
+
    p = strchr(buf, '/');
    if (NULL != p)
    {
@@ -766,7 +775,16 @@ static jb_err compile_url_pattern(struct pattern_spec *url, char *buf)
 
    if (buf[0] != '\0')
    {
-      return compile_host_pattern(url, buf);
+#ifdef FEATURE_EXTENDED_HOST_PATTERNS
+      if (url->pattern.url_spec.host_regex_type == EXTENDED_HOST_PATTERN)
+      {
+         return compile_pcre_host_pattern(url, buf);
+      }
+      else
+#endif
+      {
+         return compile_vanilla_host_pattern(url, buf);
+      }
    }
 
    return JB_ERR_OK;
@@ -777,9 +795,9 @@ static jb_err compile_url_pattern(struct pattern_spec *url, char *buf)
 #ifdef FEATURE_EXTENDED_HOST_PATTERNS
 /*********************************************************************
  *
- * Function    :  compile_host_pattern
+ * Function    :  compile_pcre_host_pattern
  *
- * Description :  Parses and compiles a host pattern.
+ * Description :  Parses and compiles a pcre host pattern.
  *
  * Parameters  :
  *          1  :  url = Target pattern_spec to be filled in.
@@ -790,16 +808,16 @@ static jb_err compile_url_pattern(struct pattern_spec *url, char *buf)
  *                JB_ERR_PARSE - Cannot parse regex
  *
  *********************************************************************/
-static jb_err compile_host_pattern(struct pattern_spec *url, const char *host_pattern)
+static jb_err compile_pcre_host_pattern(struct pattern_spec *url, const char *host_pattern)
 {
    return compile_pattern(host_pattern, RIGHT_ANCHORED_HOST, url, &url->pattern.url_spec.host_regex);
 }
+#endif /* def FEATURE_EXTENDED_HOST_PATTERNS */
 
-#else
 
 /*********************************************************************
  *
- * Function    :  compile_host_pattern
+ * Function    :  compile_vanilla_host_pattern
  *
  * Description :  Parses and "compiles" an old-school host pattern.
  *
@@ -811,7 +829,7 @@ static jb_err compile_host_pattern(struct pattern_spec *url, const char *host_pa
  *                JB_ERR_PARSE - Cannot parse regex
  *
  *********************************************************************/
-static jb_err compile_host_pattern(struct pattern_spec *url, const char *host_pattern)
+static jb_err compile_vanilla_host_pattern(struct pattern_spec *url, const char *host_pattern)
 {
    char *v[150];
    size_t size;
@@ -1127,7 +1145,6 @@ static int domain_match(const struct pattern_spec *p, const struct http_request
    }
 
 }
-#endif /* def FEATURE_EXTENDED_HOST_PATTERNS */
 
 
 /*********************************************************************
@@ -1229,11 +1246,10 @@ void free_pattern_spec(struct pattern_spec *pattern)
       regfree(pattern->pattern.url_spec.host_regex);
       freez(pattern->pattern.url_spec.host_regex);
    }
-#else
+#endif /* def FEATURE_EXTENDED_HOST_PATTERNS */
    freez(pattern->pattern.url_spec.dbuffer);
    freez(pattern->pattern.url_spec.dvec);
    pattern->pattern.url_spec.dcount = 0;
-#endif /* ndef FEATURE_EXTENDED_HOST_PATTERNS */
    freez(pattern->pattern.url_spec.port_list);
    if (pattern->pattern.url_spec.preg)
    {
@@ -1285,11 +1301,13 @@ static int host_matches(const struct http_request *http,
 {
    assert(http->host != NULL);
 #ifdef FEATURE_EXTENDED_HOST_PATTERNS
-   return ((NULL == pattern->pattern.url_spec.host_regex)
-      || (0 == regexec(pattern->pattern.url_spec.host_regex, http->host, 0, NULL, 0)));
-#else
-   return ((NULL == pattern->pattern.url_spec.dbuffer) || (0 == domain_match(pattern, http)));
+   if (pattern->pattern.url_spec.host_regex_type == EXTENDED_HOST_PATTERN) {
+      return ((NULL == pattern->pattern.url_spec.host_regex)
+         || (0 == regexec(pattern->pattern.url_spec.host_regex,
+               http->host, 0, NULL, 0)));
+   }
 #endif
+   return ((NULL == pattern->pattern.url_spec.dbuffer) || (0 == domain_match(pattern, http)));
 }
 
 

diff --git a/urlmatch.h b/urlmatch.h
index fcd050a..315e8b2 100644 (file)
--- a/urlmatch.h
+++ b/urlmatch.h
@@ -38,9 +38,7 @@
 #include "project.h"
 
 extern void free_http_request(struct http_request *http);
-#ifndef FEATURE_EXTENDED_HOST_PATTERNS
 extern jb_err init_domain_components(struct http_request *http);
-#endif
 extern jb_err parse_http_request(const char *req, struct http_request *http);
 extern jb_err parse_http_url(const char *url,
                              struct http_request *http,