* specific language governing permissions and limitations under the License.
*/
-
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>
const ngx_uint_t WEEK_LENGTH = 7;
const char * CLOSED_TOKEN = "closed";
const ngx_str_t TIME_REGEX = ngx_string("([0-9]{1,2})(?:\\:([0-9]{2}))?\\-([0-9]{1,2})(?:\\:([0-9]{2}))?");
-const ngx_str_t HEAD_HTML = ngx_string("<!doctype html><html><head><title>This website is currently closed!</title></head><body><h1>This website is currently closed!</h1><p>This website has closed for the day, please check our office hours below</p><ul>");
-const ngx_str_t MIDDLE_HTML = ngx_string("</ul><p><em>Current Server Time is: ");
-const ngx_str_t FOOT_HTML = ngx_string("</em></p></body></html>");
+const ngx_str_t HEAD_HTML = ngx_string("<!doctype html><html><head><title>This website is currently closed!</title></head><body><h1>This website is currently closed!</h1><p>This website has closed for the day, please check our office hours below:</p><ul>");
+const ngx_str_t OPEN_SERVER_TIME_HTML = ngx_string("</ul><p><em>Current Server Time is: ");
+const ngx_str_t CLOSE_SERVER_TIME_HTML = ngx_string("</em></p>");
+const ngx_str_t FOOT_HTML = ngx_string("</body></html>");
const char * DAY_NAMES[7] = {
"Monday",
"Tuesday",
typedef struct {
ngx_array_t *office_hours;
+ ngx_str_t additional_information;
} ngx_http_office_hours_conf_t;
/* Lifecycle Functions For Module Context */
offsetof(ngx_http_office_hours_conf_t, office_hours),
NULL
},
+ {
+ ngx_string("office_hours_additional_information"),
+ NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1 | NGX_CONF_TAKE2 | NGX_CONF_TAKE3 | NGX_CONF_TAKE4 | NGX_CONF_TAKE5 | NGX_CONF_TAKE6 | NGX_CONF_TAKE7,
+ ngx_conf_set_str_slot,
+ NGX_HTTP_LOC_CONF_OFFSET,
+ offsetof(ngx_http_office_hours_conf_t, additional_information),
+ NULL
+ },
ngx_null_command
};
-
/* Module Context */
static ngx_http_module_t ngx_http_office_hours_filter_module_ctx = {
ngx_http_office_hours_merge_conf /* Merge location configuration */
};
-
/* Module Definition */
ngx_module_t ngx_http_office_hours_filter_module = {
NGX_MODULE_V1_PADDING
};
-
/*
* Main Header Filter
* If the current time is within office hours, it goes to the next
ngx_http_get_module_loc_conf(r,
ngx_http_office_hours_filter_module);
-
if (conf->office_hours == NULL) {
ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0,
"Office hours disabled");
ngx_http_get_module_loc_conf(r,
ngx_http_office_hours_filter_module);
-
if (conf->office_hours == NULL) {
ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0,
"Office hours disabled");
return NGX_CONF_OK;
}
-
/*
* Config Creator
* Initializes the configuration structure
ngx_uint_t i, seconds_of_day;
ngx_uint_t ** parsed_office_hours;
+ size_t base_size = 1024;
+ size_t additional_info_size = conf->additional_information.len;
+ size_t buffer_size = base_size + additional_info_size + 1;
+ output_buffer = malloc(buffer_size * sizeof(char));
+
+ /* UH-OH we couldn't allocate the bufer */
+ if (!output_buffer) {
+ output_html.data = NULL;
+ output_html.len = 0;
+ return output_html;
+ }
- output_buffer = malloc(1024 * sizeof(char));
parsed_office_hours = parse_office_hours(conf->office_hours);
now = ngx_time();
seconds_of_day = get_seconds_of_day(now);
- sprintf(output_buffer, "%s", (char *) HEAD_HTML.data);
+ int written = 0;
+
+ written += snprintf(output_buffer + written, buffer_size - written, "%s", (char *) HEAD_HTML.data);
for (i = 0; i < 7; ++i) {
- sprintf(output_buffer + strlen(output_buffer), "%s", format_hours(parsed_office_hours[i], (char *) DAY_NAMES[i]));
+ written += snprintf(output_buffer + written, buffer_size - written, "%s", format_hours(parsed_office_hours[i], (char *) DAY_NAMES[i]));
+ }
+
+ written += snprintf(output_buffer + written, buffer_size - written, "%s", (char *) OPEN_SERVER_TIME_HTML.data);
+ written += snprintf(output_buffer + written, buffer_size - written, "%s", format_seconds(seconds_of_day));
+ written += snprintf(output_buffer + written, buffer_size - written, "%s", (char *) CLOSE_SERVER_TIME_HTML.data);
+
+ if (conf->additional_information.len > 0) {
+ char additional_info[conf->additional_information.len + 1];
+ ngx_memcpy(additional_info, conf->additional_information.data, conf->additional_information.len);
+ additional_info[conf->additional_information.len] = '\0';
+ written += snprintf(output_buffer + written, buffer_size - written, "%s", additional_info);
}
- sprintf(output_buffer + strlen(output_buffer), "%s", (char *) MIDDLE_HTML.data);
- sprintf(output_buffer + strlen(output_buffer), "%s", format_seconds(seconds_of_day));
- sprintf(output_buffer + strlen(output_buffer), "%s", (char *) FOOT_HTML.data);
+ snprintf(output_buffer + written, buffer_size - written, "%s", (char *) FOOT_HTML.data);
output_html.data = (unsigned char *) output_buffer;
output_html.len = strlen(output_buffer);
char * padding;
padding = "";
- output_string = malloc(3 * sizeof(char));
+ output_string = malloc(4 * sizeof(char));
if (number < 10) {
padding = "0";
}
- sprintf(output_string, "%s%u", padding, number);
+ snprintf(output_string, 4, "%s%u", padding, number);
return output_string;
}
git.r.bdr.sh / rbdr / ngx_http_office_hours_filter_module / blobdiff