-const char loaders_rcs[] = "$Id: loaders.c,v 1.10 2001/05/29 09:50:24 jongfoster Exp $";
+const char loaders_rcs[] = "$Id: loaders.c,v 1.13 2001/05/31 21:28:49 jongfoster Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/loaders.c,v $
*
* Revisions :
* $Log: loaders.c,v $
+ * Revision 1.13 2001/05/31 21:28:49 jongfoster
+ * Removed all permissionsfile code - it's now called the actions
+ * file, and (almost) all the code is in actions.c
+ *
+ * Revision 1.12 2001/05/31 17:32:31 oes
+ *
+ * - Enhanced domain part globbing with infix and prefix asterisk
+ * matching and optional unanchored operation
+ *
+ * Revision 1.11 2001/05/29 23:25:24 oes
+ *
+ * - load_config_line() and load_permissions_file() now use chomp()
+ *
* Revision 1.10 2001/05/29 09:50:24 jongfoster
* Unified blocklist/imagelist/permissionslist.
* File format is still under discussion, but the internal changes
#endif
#include "project.h"
+#include "list.h"
#include "loaders.h"
#include "encode.h"
#include "filters.h"
#include "miscutil.h"
#include "errlog.h"
#include "gateway.h"
+#include "actions.h"
#ifndef SPLIT_PROXY_ARGS
/* For strsav */
* Currently active files.
* These are also entered in the main linked list of files.
*/
-static struct file_list *current_permissions_file = NULL;
static struct file_list *current_forwardfile = NULL;
#ifdef ACL_FILES
#endif /* def PCRS */
-static int create_url_spec(struct url_spec * url, char * buf);
-
-
/*********************************************************************
*
* Function : sweep
*/
ncsp->config->config_file_list->active = 1;
- if (ncsp->permissions_list) /* permissions files */
+ if (ncsp->actions_list) /* actions files */
{
- ncsp->permissions_list->active = 1;
+ ncsp->actions_list->active = 1;
}
if (ncsp->flist) /* forward files */
destroy_list(ncsp->headers);
destroy_list(ncsp->cookie_list);
+ free_current_action(ncsp->action);
+
#ifdef STATISTICS
urls_read++;
if (ncsp->rejected)
* Returns : 0 => Ok, everything else is an error.
*
*********************************************************************/
-static int create_url_spec(struct url_spec * url, char * buf)
+int create_url_spec(struct url_spec * url, char * buf)
{
char *p;
struct url_spec tmp_url[1];
url->dbuf = tmp_url->dbuf;
url->dcnt = tmp_url->dcnt;
url->dvec = tmp_url->dvec;
+ url->unanchored = tmp_url->unanchored;
return 0; /* OK */
}
/*********************************************************************
*
- * Function : unload_url
+ * Function : free_url
*
* Description : Called from the "unloaders". Freez the url
* structure elements.
* Returns : N/A
*
*********************************************************************/
-static void unload_url(struct url_spec *url)
+void free_url(struct url_spec *url)
{
if (url == NULL) return;
#endif /* def ACL_FILES */
-/*********************************************************************
- *
- * Function : unload_permissions_file
- *
- * Description : Unloads a permissions file.
- *
- * Parameters :
- * 1 : file_data = the data structure associated with the
- * permissions file.
- *
- * Returns : N/A
- *
- *********************************************************************/
-static void unload_permissions_file(void *file_data)
-{
- struct permissions_spec * next;
- struct permissions_spec * cur = (struct permissions_spec *)file_data;
- while (cur != NULL)
- {
- next = cur->next;
- unload_url(cur->url);
- freez(cur);
- cur = next;
- }
-
-}
-
-
#ifdef TRUST_FILES
/*********************************************************************
*
unload_trustfile(b->next);
- unload_url(b->url);
+ free_url(b->url);
freez(b);
unload_forwardfile(b->next);
- unload_url(b->url);
+ free_url(b->url);
freez(b->gw->gateway_host);
freez(b->gw->forward_host);
*p = '\0';
}
}
-
- /* Remove leading and trailing whitespace */
- chomp(linebuf);
+ /* Write to the buffer */
if (*linebuf)
{
strncat(buf, linebuf, buflen - strlen(buf));
- if (contflag)
- {
- contflag = 0;
- continue;
- }
- else
- {
- return buf;
- }
+ }
+
+ /* Continue? */
+ if (contflag)
+ {
+ contflag = 0;
+ continue;
+ }
+
+ /* Remove leading and trailing whitespace */
+ chomp(buf);
+
+ if (*buf)
+ {
+ return buf;
}
}
+
/* EOF */
return NULL;
#endif /* def ACL_FILES */
-struct permission_alias
-{
- const char * name;
- unsigned mask; /* a bit set to "0" = remove permission */
- unsigned add; /* a bit set to "1" = add permission */
- struct permission_alias * next;
-};
-
-
-/*
- * Note: this is special-cased in the code so we don't need to
- * fill in the ->next fields.
- */
-static const struct permission_alias standard_aliases[] =
-{
- { "+block", PERMIT_MASK_ALL, PERMIT_BLOCK },
-/* { "+cookies", PERMIT_MASK_ALL, PERMIT_COOKIE_SET | PERMIT_COOKIE_READ }, */
- { "+cookies-read", PERMIT_MASK_ALL, PERMIT_COOKIE_READ },
- { "+cookies-set", PERMIT_MASK_ALL, PERMIT_COOKIE_SET },
- { "+fast-redirects", PERMIT_MASK_ALL, PERMIT_FAST_REDIRECTS },
- { "+filter", PERMIT_MASK_ALL, PERMIT_RE_FILTER },
- { "+image", PERMIT_MASK_ALL, PERMIT_IMAGE },
- { "+popup", PERMIT_MASK_ALL, PERMIT_POPUPS },
- { "+popups", PERMIT_MASK_ALL, PERMIT_POPUPS },
- { "+referer", PERMIT_MASK_ALL, PERMIT_REFERER },
- { "+referrer", PERMIT_MASK_ALL, PERMIT_REFERER },
- { "-block", ~PERMIT_BLOCK, 0 },
-/* { "-cookies", ~(PERMIT_COOKIE_SET | PERMIT_COOKIE_READ), 0 }, */
- { "-cookies-read", ~PERMIT_COOKIE_READ, 0 },
- { "-cookies-set", ~PERMIT_COOKIE_SET, 0 },
- { "-fast-redirects", ~PERMIT_FAST_REDIRECTS, 0 },
- { "-filter", ~PERMIT_RE_FILTER, 0 },
- { "-image", ~PERMIT_IMAGE, 0 },
- { "-popup", ~PERMIT_POPUPS, 0 },
- { "-popups", ~PERMIT_POPUPS, 0 },
- { "-referer", ~PERMIT_REFERER, 0 },
- { "-referrer", ~PERMIT_REFERER, 0 },
- { NULL, 0, 0 } /* End marker */
-};
-
-
-/*********************************************************************
- *
- * Function : load_permissions_file
- *
- * Description : Read and parse a permissions file and add to files
- * list.
- *
- * Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- *
- * Returns : 0 => Ok, everything else is an error.
- *
- *********************************************************************/
-int load_permissions_file(struct client_state *csp)
-{
- FILE *fp;
-
- struct permissions_spec *last_perm;
- struct permissions_spec *perm;
- char buf[BUFSIZ];
- struct file_list *fs;
-#define MODE_START_OF_FILE 1
-#define MODE_PERMISSIONS 2
-#define MODE_ALIAS 3
- int mode = MODE_START_OF_FILE;
- unsigned curmask = PERMIT_MASK_ALL;
- unsigned curadd = 0;
- struct permission_alias * alias_list = NULL;
-
- if (!check_file_changed(current_permissions_file, csp->config->permissions_file, &fs))
- {
- /* No need to load */
- if (csp)
- {
- csp->permissions_list = current_permissions_file;
- }
- return 0;
- }
- if (!fs)
- {
- log_error(LOG_LEVEL_FATAL, "can't load permissions file '%s': error finding file: %E",
- csp->config->permissions_file);
- return 1; /* never get here */
- }
-
- fs->f = last_perm = (struct permissions_spec *)zalloc(sizeof(*last_perm));
- if (last_perm == NULL)
- {
- log_error(LOG_LEVEL_FATAL, "can't load permissions file '%s': out of memory!",
- csp->config->permissions_file);
- return 1; /* never get here */
- }
-
- if ((fp = fopen(csp->config->permissions_file, "r")) == NULL)
- {
- log_error(LOG_LEVEL_FATAL, "can't load permissions file '%s': error opening file: %E",
- csp->config->permissions_file);
- return 1; /* never get here */
- }
-
- while (read_config_line(buf, sizeof(buf), fp, fs) != NULL)
- {
- if (*buf == '{')
- {
- /* It's a header block */
- if (buf[1] == '{')
- {
- /* It's {{settings}} or {{alias}} */
- int len = strlen(buf);
- char * start = buf + 2;
- char * end = buf + len - 1;
- if ((len < 5) || (*end-- != '}') || (*end-- != '}'))
- {
- /* too short */
- fclose(fp);
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': invalid line: %s",
- csp->config->permissions_file, buf);
- return 1; /* never get here */
- }
-
- /* Trim leading and trailing whitespace. */
- end[1] = '\0';
- chomp(start);
-
- if (*start == '\0')
- {
- /* too short */
- fclose(fp);
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': invalid line: {{ }}",
- csp->config->permissions_file);
- return 1; /* never get here */
- }
-
- if (0 == strcmpic(start, "alias"))
- {
- /* it's an {{alias}} block */
-
- mode = MODE_ALIAS;
- }
- else
- {
- /* invalid {{something}} block */
- fclose(fp);
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': invalid line: {{%s}}",
- csp->config->permissions_file, start);
- return 1; /* never get here */
- }
- }
- else
- {
- /* It's a permissions block */
-
- int more = 1;
-
- int len = strlen(buf);
- char * start = buf + 1;
- char * end = buf + len - 1;
-
- if ((len < 3) || (*end-- != '}'))
- {
- /* too short */
- fclose(fp);
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': invalid line: %s",
- csp->config->permissions_file, buf);
- return 1; /* never get here */
- }
-
- end[1] = '\0';
- chomp(start);
-
- if (*start == '\0')
- {
- /* too short */
- fclose(fp);
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': invalid line: { }",
- csp->config->permissions_file);
- return 1; /* never get here */
- }
-
- mode = MODE_PERMISSIONS;
-
- curmask = PERMIT_MASK_ALL;
- curadd = 0;
-
- while (more)
- {
- const struct permission_alias * alias = standard_aliases;
- char * option = start;
- while ((*start != '\0') && (*start != ' ') && (*start != '\t'))
- {
- start++;
- }
-
- more = (*start != 0);
- if (more)
- {
- *start++ = '\0';
-
- /* Eat all the whitespace between the options */
- while ((*start == ' ') || (*start == '\t'))
- {
- start++;
- }
- }
-
- /* handle option in 'option' */
-
- /* Check for standard permission name */
- while ( (alias->name != NULL) && (0 != strcmpic(alias->name, option)) )
- {
- alias++;
- }
- if (alias->name == NULL)
- {
- /* try user aliases. */
- alias = alias_list;
- while ( (alias != NULL) && (0 != strcmpic(alias->name, option)) )
- {
- alias = alias->next;
- }
- }
- if (alias == NULL)
- {
- /* Bad permission name */
- fclose(fp);
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': invalid permission name: %s",
- csp->config->permissions_file, option);
- return 1; /* never get here */
- }
- curmask &= alias->mask;
- curadd &= alias->mask;
- curadd |= alias->add;
- }
- }
- }
- else if (mode == MODE_ALIAS)
- {
- /* define an alias */
- struct permission_alias * new_alias;
- int more = 1;
-
- char * start = strchr(buf, '=');
- char * end = start;
-
- if ((start == NULL) || (start == buf))
- {
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': invalid alias line: %s",
- csp->config->permissions_file, buf);
- return 1; /* never get here */
- }
-
- if ((new_alias = zalloc(sizeof(*new_alias))) == NULL)
- {
- fclose(fp);
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': out of memory!",
- csp->config->permissions_file);
- return 1; /* never get here */
- }
-
- /* Eat any the whitespace after the '=' */
- start++;
- while ((*start == ' ') || (*start == '\t'))
- {
- start++;
- }
- if (*start == '\0')
- {
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': invalid alias line: %s",
- csp->config->permissions_file, buf);
- return 1; /* never get here */
- }
-
- /* Eat any the whitespace before the '=' */
- end--;
- while ((*end == ' ') || (*end == '\t'))
- {
- /*
- * we already know we must have at least 1 non-ws char
- * at start of buf - no need to check
- */
- end--;
- }
- end[1] = '\0';
-
- new_alias->name = strdup(buf);
-
- curmask = PERMIT_MASK_ALL;
- curadd = 0;
-
- while (more)
- {
- const struct permission_alias * alias = standard_aliases;
- char * option = start;
- while ((*start != '\0') && (*start != ' ') && (*start != '\t'))
- {
- start++;
- }
-
- more = (*start != 0);
- if (more)
- {
- *start++ = '\0';
-
- /* Eat all the whitespace between the options */
- while ((*start == ' ') || (*start == '\t'))
- {
- start++;
- }
- }
-
- /* handle option in 'option' */
-
- /* Check for standard permission name */
- while ( (alias->name != NULL) && (0 != strcmpic(alias->name, option)) )
- {
- alias++;
- }
- if (alias->name == NULL)
- {
- /* try user aliases. */
- alias = alias_list;
- while ( (alias != NULL) && (0 != strcmpic(alias->name, option)) )
- {
- alias = alias->next;
- }
- }
- if (alias == NULL)
- {
- /* Bad permission name */
- fclose(fp);
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': invalid permission name: %s",
- csp->config->permissions_file, option);
- return 1; /* never get here */
- }
- curmask &= alias->mask;
- curadd &= alias->mask;
- curadd |= alias->add;
- }
-
- /* save alias permissions */
- new_alias->mask = curmask;
- new_alias->add = curadd;
-
- /* add to list */
- new_alias->next = alias_list;
- alias_list = new_alias;
- }
- else if (mode == MODE_PERMISSIONS)
- {
- /* it's a URL pattern */
-
- /* allocate a new node */
- if ((perm = zalloc(sizeof(*perm))) == NULL)
- {
- fclose(fp);
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': out of memory!",
- csp->config->permissions_file);
- return 1; /* never get here */
- }
-
- /* Save flags */
- perm->mask = curmask;
- perm->add = curadd;
-
- /* Save the URL pattern */
- if (create_url_spec(perm->url, buf))
- {
- fclose(fp);
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': cannot create URL permission from: %s",
- csp->config->permissions_file, buf);
- return 1; /* never get here */
- }
-
- /* add it to the list */
- last_perm->next = perm;
- last_perm = perm;
- }
- else if (mode == MODE_START_OF_FILE)
- {
- /* oops - please have a {} line as 1st line in file. */
- fclose(fp);
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': first line is invalid: %s",
- csp->config->permissions_file, buf);
- return 1; /* never get here */
- }
- else
- {
- /* How did we get here? This is impossible! */
- fclose(fp);
- log_error(LOG_LEVEL_FATAL,
- "can't load permissions file '%s': INTERNAL ERROR - mode = %d",
- csp->config->permissions_file, mode);
- return 1; /* never get here */
- }
- }
-
- fclose(fp);
-
- while (alias_list != NULL)
- {
- struct permission_alias * next = alias_list->next;
- freez((char *)alias_list->name);
- free(alias_list);
- alias_list = next;
- }
-
-#ifndef SPLIT_PROXY_ARGS
- if (!suppress_blocklists)
- {
- fs->proxy_args = strsav(fs->proxy_args, "</pre>");
- }
-#endif /* ndef SPLIT_PROXY_ARGS */
-
- /* the old one is now obsolete */
- if (current_permissions_file)
- {
- current_permissions_file->unloader = unload_permissions_file;
- }
-
- fs->next = files->next;
- files->next = fs;
- current_permissions_file = fs;
-
- if (csp)
- {
- csp->permissions_list = fs;
- }
-
- return(0);
-
-}
-
-
#ifdef TRUST_FILES
/*********************************************************************
*
projects / privoxy.git / blobdiff