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Diffstat (limited to 'src/html-error.c')
-rw-r--r--src/html-error.c366
1 files changed, 180 insertions, 186 deletions
diff --git a/src/html-error.c b/src/html-error.c
index fa6c02a..b096cc4 100644
--- a/src/html-error.c
+++ b/src/html-error.c
@@ -36,74 +36,71 @@
#define ERRORNUM_BUFSIZE 8 /* this is more than required */
#define ERRPAGES_BUCKETCOUNT 16
-int
-add_new_errorpage (char *filepath, unsigned int errornum)
+int add_new_errorpage (char *filepath, unsigned int errornum)
{
- char errornbuf[ERRORNUM_BUFSIZE];
+ 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)
+static char *get_html_file (unsigned int errornum)
{
- hashmap_iter result_iter;
- char errornbuf[ERRORNUM_BUFSIZE];
- char *key;
- static char *val;
+ 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, const char *varname)
+static char *lookup_variable (struct conn_s *connptr, const char *varname)
{
- hashmap_iter result_iter;
- char *key;
- static char *data;
+ 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
@@ -111,116 +108,113 @@ lookup_variable (struct conn_s *connptr, const char *varname)
/*
* Send an already-opened file to the client with variable substitution.
*/
-int
-send_html_file (FILE * infile, struct conn_s *connptr)
+int send_html_file (FILE * infile, struct conn_s *connptr)
{
- char inbuf[HTML_BUFSIZE], *varstart = NULL, *p;
- const 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';
- varval = (const char *)lookup_variable (connptr, varstart);
- if (!varval)
- 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);
+ char inbuf[HTML_BUFSIZE], *varstart = NULL, *p;
+ const 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';
+ varval =
+ (const char *)
+ lookup_variable (connptr, varstart);
+ if (!varval)
+ 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);
+ }
+
+ }
}
- 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);
+ return (0);
}
-int
-send_http_headers (struct conn_s *connptr, int code, const char *message)
+int send_http_headers (struct conn_s *connptr, int code, const char *message)
{
- const 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";
+ const 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));
+ return (write_message (connptr->client_fd, headers,
+ code, message, PACKAGE, VERSION));
}
/*
* Display an error to the client.
*/
-int
-send_http_error_message (struct conn_s *connptr)
+int send_http_error_message (struct conn_s *connptr)
{
- char *error_file;
- FILE *infile;
- int ret;
- const char *fallback_error =
- "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n"
- "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\" "
- "\"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">\n"
- "<html>\n"
- "<head><title>%d %s</title></head>\n"
- "<body>\n"
- "<h1>%s</h1>\n"
- "<p>%s</p>\n"
- "<hr />\n"
- "<p><em>Generated by %s version %s.</em></p>\n" "</body>\n" "</html>\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")))
- {
- char *detail = lookup_variable (connptr, "detail");
- return (write_message (connptr->client_fd, fallback_error,
- connptr->error_number,
- connptr->error_string,
- connptr->error_string,
- detail, PACKAGE, VERSION));
- }
-
- ret = send_html_file (infile, connptr);
- fclose (infile);
- return (ret);
+ char *error_file;
+ FILE *infile;
+ int ret;
+ const char *fallback_error =
+ "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n"
+ "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\" "
+ "\"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">\n"
+ "<html>\n"
+ "<head><title>%d %s</title></head>\n"
+ "<body>\n"
+ "<h1>%s</h1>\n"
+ "<p>%s</p>\n"
+ "<hr />\n"
+ "<p><em>Generated by %s version %s.</em></p>\n" "</body>\n"
+ "</html>\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"))) {
+ char *detail = lookup_variable (connptr, "detail");
+ return (write_message (connptr->client_fd, fallback_error,
+ connptr->error_number,
+ connptr->error_string,
+ connptr->error_string,
+ detail, PACKAGE, VERSION));
+ }
+
+ ret = send_html_file (infile, connptr);
+ fclose (infile);
+ return (ret);
}
/*
@@ -232,12 +226,14 @@ send_http_error_message (struct conn_s *connptr)
int
add_error_variable (struct conn_s *connptr, const char *key, const char *val)
{
- if (!connptr->error_variables)
- if (!(connptr->error_variables = hashmap_create (ERRVAR_BUCKETCOUNT)))
- return (-1);
-
- return hashmap_insert (connptr->error_variables, key, val,
- strlen (val) + 1);
+ if (!connptr->error_variables)
+ if (!
+ (connptr->error_variables =
+ hashmap_create (ERRVAR_BUCKETCOUNT)))
+ return (-1);
+
+ return hashmap_insert (connptr->error_variables, key, val,
+ strlen (val) + 1);
}
#define ADD_VAR_RET(x, y) \
@@ -251,36 +247,36 @@ add_error_variable (struct conn_s *connptr, const char *key, const char *val)
/*
* Set some standard variables used by all HTML pages
*/
-int
-add_standard_vars (struct conn_s *connptr)
+int add_standard_vars (struct conn_s *connptr)
{
- char errnobuf[16];
- char timebuf[30];
- time_t global_time;
-
- snprintf (errnobuf, sizeof errnobuf, "%d", connptr->error_number);
- ADD_VAR_RET ("errno", errnobuf);
-
- ADD_VAR_RET ("cause", connptr->error_string);
- ADD_VAR_RET ("request", connptr->request_line);
- ADD_VAR_RET ("clientip", connptr->client_ip_addr);
- ADD_VAR_RET ("clienthost", connptr->client_string_addr);
-
- /* The following value parts are all non-NULL and will
- * trigger warnings in ADD_VAR_RET(), so we use
- * add_error_variable() directly.
- */
-
- global_time = time (NULL);
- strftime (timebuf, sizeof (timebuf), "%a, %d %b %Y %H:%M:%S GMT",
- gmtime (&global_time));
- add_error_variable (connptr, "date", timebuf);
-
- add_error_variable (connptr, "website", "http://www.banu.com/tinyproxy/");
- add_error_variable (connptr, "version", VERSION);
- add_error_variable (connptr, "package", PACKAGE);
-
- return (0);
+ char errnobuf[16];
+ char timebuf[30];
+ time_t global_time;
+
+ snprintf (errnobuf, sizeof errnobuf, "%d", connptr->error_number);
+ ADD_VAR_RET ("errno", errnobuf);
+
+ ADD_VAR_RET ("cause", connptr->error_string);
+ ADD_VAR_RET ("request", connptr->request_line);
+ ADD_VAR_RET ("clientip", connptr->client_ip_addr);
+ ADD_VAR_RET ("clienthost", connptr->client_string_addr);
+
+ /* The following value parts are all non-NULL and will
+ * trigger warnings in ADD_VAR_RET(), so we use
+ * add_error_variable() directly.
+ */
+
+ global_time = time (NULL);
+ strftime (timebuf, sizeof (timebuf), "%a, %d %b %Y %H:%M:%S GMT",
+ gmtime (&global_time));
+ add_error_variable (connptr, "date", timebuf);
+
+ add_error_variable (connptr, "website",
+ "http://www.banu.com/tinyproxy/");
+ add_error_variable (connptr, "version", VERSION);
+ add_error_variable (connptr, "package", PACKAGE);
+
+ return (0);
}
/*
@@ -290,26 +286,24 @@ int
indicate_http_error (struct conn_s *connptr, int number,
const 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));
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 03:03:58 +0000