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Add basic auth. Fixes #4

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simon
2019-11-17 10:00:17 -05:00
parent 16ccc6c0d3
commit 204034d859
9 changed files with 84 additions and 2 deletions
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59
src/web/auth_basic.c Normal file
View File

@@ -0,0 +1,59 @@
#import "auth_basic.h"
#define UNAUTHORIZED_TEXT "Unauthorized"
typedef struct auth_basic_data {
onion_handler *inside;
const char *b64credentials;
} auth_basic_data_t;
int authenticate(const char *expected, const char *credentials) {
if (expected == NULL) {
return TRUE;
}
if (credentials && strncmp(credentials, "Basic ", 6) == 0) {
if (strcmp((credentials + 6), expected) == 0) {
return TRUE;
}
}
return FALSE;
}
int auth_basic_handler(auth_basic_data_t *d,
onion_request *req,
onion_response *res) {
const char *credentials = onion_request_get_header(req, "Authorization");
if (authenticate(d->b64credentials, credentials)) {
return onion_handler_handle(d->inside, req, res);
}
onion_response_set_header(res, "WWW-Authenticate", "Basic realm=\"sist2\"");
onion_response_set_code(res, HTTP_UNAUTHORIZED);
onion_response_write(res, UNAUTHORIZED_TEXT, sizeof(UNAUTHORIZED_TEXT));
onion_response_set_length(res, sizeof(UNAUTHORIZED_TEXT));
return OCS_PROCESSED;
}
void auth_basic_free(auth_basic_data_t *data) {
onion_handler_free(data->inside);
free(data);
}
onion_handler *auth_basic(const char *b64credentials, onion_handler *inside_level) {
auth_basic_data_t *privdata = malloc(sizeof(auth_basic_data_t));
privdata->b64credentials = b64credentials;
privdata->inside = inside_level;
return onion_handler_new((onion_handler_handler) auth_basic_handler, privdata,
(onion_handler_private_data_free) auth_basic_free);
}

4
src/web/auth_basic.h Normal file
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@@ -0,0 +1,4 @@
#include "src/sist.h"
onion_handler *auth_basic(const char *b64credentials, onion_handler *inside_level);

7
src/web/serve.c
View File

@@ -245,6 +245,8 @@ int search(void *p, onion_request *req, onion_response *res) {
if (r->status_code == 200) {
onion_response_write(res, r->body, r->size);
} else {
onion_response_set_code(res, HTTP_INTERNAL_ERROR);
}
free_response(r);
@@ -391,9 +393,11 @@ void serve(const char *hostname, const char *port) {
onion_set_hostname(o, hostname);
onion_set_port(o, port);
onion_url *urls = onion_root_url(o);
onion_url *urls = onion_url_new();
// Static paths
onion_set_root_handler(o, auth_basic(WebCtx.b64credentials, onion_url_to_handler(urls)));
onion_url_add(urls, "", search_index);
onion_url_add(urls, "css", style);
onion_url_add(urls, "js", javascript);
@@ -410,6 +414,7 @@ void serve(const char *hostname, const char *port) {
onion_url_add(urls, "^f/([a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12})$", file);
onion_url_add(urls, "i", index_info);
printf("Starting web server @ http://%s:%s\n", hostname, port);
onion_listen(o);