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Diffstat (limited to 'src/htmlerror.c')
-rw-r--r--src/htmlerror.c342
1 files changed, 179 insertions, 163 deletions
diff --git a/src/htmlerror.c b/src/htmlerror.c
index d02eae8..afc1e63 100644
--- a/src/htmlerror.c
+++ b/src/htmlerror.c
@@ -1,4 +1,4 @@
-/* $Id: htmlerror.c,v 1.7 2003-08-01 00:14:34 rjkaes Exp $
+/* $Id: htmlerror.c,v 1.8 2005-08-15 03:54:31 rjkaes Exp $
*
* This file contains source code for the handling and display of
* HTML error pages with variable substitution.
@@ -29,73 +29,77 @@
/*
* Add an error number -> filename mapping to the errorpages list.
*/
-#define ERRORNUM_BUFSIZE 8 /* this is more than required */
+#define ERRORNUM_BUFSIZE 8 /* this is more than required */
#define ERRPAGES_BUCKETCOUNT 16
int
-add_new_errorpage(char *filepath, unsigned int errornum) {
- char errornbuf[ERRORNUM_BUFSIZE];
+add_new_errorpage(char *filepath, unsigned int errornum)
+{
+ char errornbuf[ERRORNUM_BUFSIZE];
- config.errorpages = hashmap_create(ERRPAGES_BUCKETCOUNT);
- if (!config.errorpages)
- return(-1);
+ config.errorpages = hashmap_create(ERRPAGES_BUCKETCOUNT);
+ if (!config.errorpages)
+ return (-1);
- snprintf(errornbuf, ERRORNUM_BUFSIZE, "%u", errornum);
+ snprintf(errornbuf, ERRORNUM_BUFSIZE, "%u", errornum);
- if (hashmap_insert(config.errorpages, errornbuf,
- filepath, strlen(filepath) + 1) < 0)
- return(-1);
+ if (hashmap_insert(config.errorpages, errornbuf,
+ filepath, strlen(filepath) + 1) < 0)
+ return (-1);
- return(0);
+ return (0);
}
/*
* Get the file appropriate for a given error.
*/
-static char*
-get_html_file(unsigned int errornum) {
- hashmap_iter result_iter;
- char errornbuf[ERRORNUM_BUFSIZE];
- char *key;
- static char *val;
+static char *
+get_html_file(unsigned int errornum)
+{
+ hashmap_iter result_iter;
+ char errornbuf[ERRORNUM_BUFSIZE];
+ char *key;
+ static char *val;
- assert(errornum >= 100 && errornum < 1000);
+ assert(errornum >= 100 && errornum < 1000);
- if (!config.errorpages) return(config.errorpage_undef);
+ if (!config.errorpages)
+ return (config.errorpage_undef);
- snprintf(errornbuf, ERRORNUM_BUFSIZE, "%u", errornum);
+ snprintf(errornbuf, ERRORNUM_BUFSIZE, "%u", errornum);
- result_iter = hashmap_find(config.errorpages, errornbuf);
+ result_iter = hashmap_find(config.errorpages, errornbuf);
- if (hashmap_is_end(config.errorpages, result_iter))
- return(config.errorpage_undef);
+ if (hashmap_is_end(config.errorpages, result_iter))
+ return (config.errorpage_undef);
- if (hashmap_return_entry(config.errorpages, result_iter,
- &key, (void **)&val) < 0)
- return(config.errorpage_undef);
+ if (hashmap_return_entry(config.errorpages, result_iter,
+ &key, (void **)&val) < 0)
+ return (config.errorpage_undef);
- return(val);
+ return (val);
}
/*
* Look up the value for a variable.
*/
-static char*
-lookup_variable(struct conn_s *connptr, char *varname) {
- hashmap_iter result_iter;
- char *key;
- static char *data;
+static char *
+lookup_variable(struct conn_s *connptr, char *varname)
+{
+ hashmap_iter result_iter;
+ char *key;
+ static char *data;
- result_iter = hashmap_find(connptr->error_variables, varname);
+ result_iter = hashmap_find(connptr->error_variables, varname);
- if (hashmap_is_end(connptr->error_variables, result_iter))
- return(NULL);
+ if (hashmap_is_end(connptr->error_variables, result_iter))
+ return (NULL);
- if (hashmap_return_entry(connptr->error_variables, result_iter,
- &key, (void **)&data) < 0)
- return(NULL);
+ if (hashmap_return_entry(connptr->error_variables, result_iter,
+ &key, (void **)&data) < 0)
+ return (NULL);
- return(data);
+ return (data);
}
#define HTML_BUFSIZE 4096
@@ -104,66 +108,75 @@ lookup_variable(struct conn_s *connptr, char *varname) {
* Send an already-opened file to the client with variable substitution.
*/
int
-send_html_file(FILE *infile, struct conn_s *connptr) {
- char inbuf[HTML_BUFSIZE], *varstart = NULL, *p;
- char *varval;
- int in_variable = 0, writeret;
-
- while(fgets(inbuf, HTML_BUFSIZE, infile) != NULL) {
- for (p = inbuf; *p; p++) {
- switch(*p) {
- case '}':
- if(in_variable) {
- *p = '\0';
- if(!(varval = lookup_variable(connptr, varstart)))
- varval = "(unknown)";
- writeret = write_message(connptr->client_fd, "%s",
- varval);
- if(writeret) return(writeret);
- in_variable = 0;
- } else {
- writeret = write_message(connptr->client_fd, "%c", *p);
- if (writeret) return(writeret);
- }
- break;
- case '{':
- /* a {{ will print a single {. If we are NOT
- * already in a { variable, then proceed with
- * setup. If we ARE already in a { variable,
- * this code will fallthrough to the code that
- * just dumps a character to the client fd.
- */
- if(!in_variable) {
- varstart = p+1;
- in_variable++;
- } else
- in_variable = 0;
- default:
- if(!in_variable) {
- writeret = write_message(connptr->client_fd, "%c",
- *p);
- if(writeret) return(writeret);
- }
-
- }
- }
- in_variable = 0;
- }
- return(0);
+send_html_file(FILE * infile, struct conn_s *connptr)
+{
+ char inbuf[HTML_BUFSIZE], *varstart = NULL, *p;
+ char *varval;
+ int in_variable = 0, writeret;
+
+ while (fgets(inbuf, HTML_BUFSIZE, infile) != NULL) {
+ for (p = inbuf; *p; p++) {
+ switch (*p) {
+ case '}':
+ if (in_variable) {
+ *p = '\0';
+ if (!
+ (varval =
+ lookup_variable(connptr,
+ varstart)))
+ varval = "(unknown)";
+ writeret =
+ write_message(connptr->client_fd,
+ "%s", varval);
+ if (writeret)
+ return (writeret);
+ in_variable = 0;
+ } else {
+ writeret =
+ write_message(connptr->client_fd,
+ "%c", *p);
+ if (writeret)
+ return (writeret);
+ }
+ break;
+ case '{':
+ /* a {{ will print a single {. If we are NOT
+ * already in a { variable, then proceed with
+ * setup. If we ARE already in a { variable,
+ * this code will fallthrough to the code that
+ * just dumps a character to the client fd.
+ */
+ if (!in_variable) {
+ varstart = p + 1;
+ in_variable++;
+ } else
+ in_variable = 0;
+ default:
+ if (!in_variable) {
+ writeret =
+ write_message(connptr->client_fd,
+ "%c", *p);
+ if (writeret)
+ return (writeret);
+ }
+
+ }
+ }
+ in_variable = 0;
+ }
+ return (0);
}
int
-send_http_headers(struct conn_s *connptr, int code, char *message) {
- char *headers = \
- "HTTP/1.0 %d %s\r\n" \
- "Server: %s/%s\r\n" \
- "Content-Type: text/html\r\n" \
- "Connection: close\r\n" \
- "\r\n";
-
- return(write_message(connptr->client_fd, headers,
- code, message,
- PACKAGE, VERSION));
+send_http_headers(struct conn_s *connptr, int code, char *message)
+{
+ char *headers =
+ "HTTP/1.0 %d %s\r\n"
+ "Server: %s/%s\r\n"
+ "Content-Type: text/html\r\n" "Connection: close\r\n" "\r\n";
+
+ return (write_message(connptr->client_fd, headers,
+ code, message, PACKAGE, VERSION));
}
/*
@@ -172,33 +185,32 @@ send_http_headers(struct conn_s *connptr, int code, char *message) {
int
send_http_error_message(struct conn_s *connptr)
{
- char *error_file;
- FILE *infile;
- int ret;
- char *fallback_error = \
- "<html><head><title>%s</title></head>" \
- "<body><blockquote><i>%s %s</i><br>" \
- "The page you requested was unavailable. The error code is listed " \
- "below. In addition, the HTML file which has been configured as the " \
- "page to be displayed when an error of this type was unavailable, " \
- "with the error code %d (%s). Please contact your administrator." \
- "<center>%s</center>" \
- "</body></html>" \
- "\r\n";
-
- send_http_headers(connptr, connptr->error_number, connptr->error_string);
-
- error_file = get_html_file(connptr->error_number);
- if(!(infile = fopen(error_file, "r")))
- return(write_message(connptr->client_fd, fallback_error,
- connptr->error_string,
- PACKAGE, VERSION,
- errno, strerror(errno),
- connptr->error_string));
-
- ret = send_html_file(infile, connptr);
- fclose(infile);
- return(ret);
+ char *error_file;
+ FILE *infile;
+ int ret;
+ char *fallback_error =
+ "<html><head><title>%s</title></head>"
+ "<body><blockquote><i>%s %s</i><br>"
+ "The page you requested was unavailable. The error code is listed "
+ "below. In addition, the HTML file which has been configured as the "
+ "page to be displayed when an error of this type was unavailable, "
+ "with the error code %d (%s). Please contact your administrator."
+ "<center>%s</center>" "</body></html>" "\r\n";
+
+ send_http_headers(connptr, connptr->error_number,
+ connptr->error_string);
+
+ error_file = get_html_file(connptr->error_number);
+ if (!(infile = fopen(error_file, "r")))
+ return (write_message(connptr->client_fd, fallback_error,
+ connptr->error_string,
+ PACKAGE, VERSION,
+ errno, strerror(errno),
+ connptr->error_string));
+
+ ret = send_html_file(infile, connptr);
+ fclose(infile);
+ return (ret);
}
/*
@@ -207,18 +219,20 @@ send_http_error_message(struct conn_s *connptr)
#define ERRVAR_BUCKETCOUNT 16
-int
-add_error_variable(struct conn_s *connptr, char *key, char *val)
+int
+add_error_variable(struct conn_s *connptr, char *key, char *val)
{
- if(!connptr->error_variables)
- if (!(connptr->error_variables = hashmap_create(ERRVAR_BUCKETCOUNT)))
- return(-1);
+ if (!connptr->error_variables)
+ if (!
+ (connptr->error_variables =
+ hashmap_create(ERRVAR_BUCKETCOUNT)))
+ return (-1);
- if (hashmap_insert(connptr->error_variables, key, val,
- strlen(val) + 1) < 0)
- return(-1);
+ if (hashmap_insert(connptr->error_variables, key, val,
+ strlen(val) + 1) < 0)
+ return (-1);
- return(0);
+ return (0);
}
#define ADD_VAR_RET(x, y) if(y) { if(add_error_variable(connptr, x, y) == -1) return(-1); }
@@ -227,46 +241,48 @@ add_error_variable(struct conn_s *connptr, char *key, char *val)
* Set some standard variables used by all HTML pages
*/
int
-add_standard_vars(struct conn_s *connptr) {
- char timebuf[30];
- time_t global_time = time(NULL);
-
- strftime(timebuf, sizeof(timebuf), "%a, %d %b %Y %H:%M:%S GMT",
- gmtime(&global_time));
-
- ADD_VAR_RET("request", connptr->request_line);
- ADD_VAR_RET("cause", connptr->error_string);
- ADD_VAR_RET("clientip", connptr->client_ip_addr);
- ADD_VAR_RET("clienthost", connptr->client_string_addr);
- ADD_VAR_RET("version", VERSION);
- ADD_VAR_RET("package", PACKAGE);
- ADD_VAR_RET("date", timebuf);
- return(0);
+add_standard_vars(struct conn_s *connptr)
+{
+ char timebuf[30];
+ time_t global_time = time(NULL);
+
+ strftime(timebuf, sizeof(timebuf), "%a, %d %b %Y %H:%M:%S GMT",
+ gmtime(&global_time));
+
+ ADD_VAR_RET("request", connptr->request_line);
+ ADD_VAR_RET("cause", connptr->error_string);
+ ADD_VAR_RET("clientip", connptr->client_ip_addr);
+ ADD_VAR_RET("clienthost", connptr->client_string_addr);
+ ADD_VAR_RET("version", VERSION);
+ ADD_VAR_RET("package", PACKAGE);
+ ADD_VAR_RET("date", timebuf);
+ return (0);
}
/*
* Add the error information to the conn structure.
*/
int
-indicate_http_error(struct conn_s* connptr, int number, char *message, ...)
+indicate_http_error(struct conn_s *connptr, int number, char *message, ...)
{
- va_list ap;
- char *key, *val;
+ va_list ap;
+ char *key, *val;
+
+ va_start(ap, message);
- va_start(ap, message);
+ while ((key = va_arg(ap, char *))) {
+ val = va_arg(ap, char *);
- while((key = va_arg(ap, char *))) {
- val = va_arg(ap, char *);
- if(add_error_variable(connptr, key, val) == -1) {
- va_end(ap);
- return(-1);
- }
- }
+ if (add_error_variable(connptr, key, val) == -1) {
+ va_end(ap);
+ return (-1);
+ }
+ }
- connptr->error_number = number;
- connptr->error_string = safestrdup(message);
+ connptr->error_number = number;
+ connptr->error_string = safestrdup(message);
- va_end(ap);
+ va_end(ap);
- return(add_standard_vars(connptr));
+ return (add_standard_vars(connptr));
}
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