-const char cgiedit_rcs[] = "$Id: cgiedit.c,v 1.37 2002/04/30 11:14:52 oes Exp $";
+const char cgiedit_rcs[] = "$Id: cgiedit.c,v 1.40 2002/05/19 11:34:35 jongfoster Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/cgiedit.c,v $
*
* Revisions :
* $Log: cgiedit.c,v $
+ * Revision 1.40 2002/05/19 11:34:35 jongfoster
+ * Handling read-only actions files better - report the actual
+ * error, not "Out of memory"!
+ *
+ * Bug report:
+ * http://sourceforge.net/tracker/index.php?func=detail
+ * &aid=557905&group_id=11118&atid=111118
+ *
+ * Revision 1.39 2002/05/12 21:39:15 jongfoster
+ * - Adding Doxygen-style comments to structures and #defines.
+ * - Correcting function comments
+ *
+ * Revision 1.38 2002/05/03 23:00:38 jongfoster
+ * Support for templates for "standard actions" buttons.
+ * See bug #549871
+ *
* Revision 1.37 2002/04/30 11:14:52 oes
* Made csp the first parameter in *action_to_html
*
#ifdef FEATURE_CGI_EDIT_ACTIONS
+/**
+ * A line in an editable_file.
+ */
struct file_line
{
+ /** Next entry in the linked list */
struct file_line * next;
+
+ /** The raw data, to write out if this line is unmodified. */
char * raw;
+
+ /** Comments and/or whitespace to put before this line if it's modified
+ and then written out. */
char * prefix;
+
+ /** The actual data, as a string. Line continuation and comment removal
+ are performed on the data read from file before it's stored here, so
+ it will be a single line of data. */
char * unprocessed;
+
+ /** The type of data on this line. One of the FILE_LINE_xxx constants. */
int type;
+ /** The actual data, processed into some sensible data type. */
union
{
+
+ /** An action specification. */
struct action_spec action[1];
+ /** A name=value pair. */
struct
{
+
+ /** The name in the name=value pair. */
char * name;
+
+ /** The value in the name=value pair, as a string. */
char * svalue;
+
+ /** The value in the name=value pair, as an integer. */
int ivalue;
+
} setting;
/* Add more data types here... e.g.
*/
} data;
+
};
+/** This file_line has not been processed yet. */
#define FILE_LINE_UNPROCESSED 1
+
+/** This file_line is blank. Can only appear at the end of a file, due to
+ the way the parser works. */
#define FILE_LINE_BLANK 2
+
+/** This file_line says {{alias}}. */
#define FILE_LINE_ALIAS_HEADER 3
+
+/** This file_line defines an alias. */
#define FILE_LINE_ALIAS_ENTRY 4
+
+/** This file_line defines an {action}. */
#define FILE_LINE_ACTION 5
+
+/** This file_line specifies a URL pattern. */
#define FILE_LINE_URL 6
+
+/** This file_line says {{settings}}. */
#define FILE_LINE_SETTINGS_HEADER 7
+
+/** This file_line is in a {{settings}} block. */
#define FILE_LINE_SETTINGS_ENTRY 8
+
+/** This file_line says {{description}}. */
#define FILE_LINE_DESCRIPTION_HEADER 9
+
+/** This file_line is in a {{description}} block. */
#define FILE_LINE_DESCRIPTION_ENTRY 10
+/**
+ * A configuration file, in a format that can be edited and written back to
+ * disk.
+ */
struct editable_file
{
- struct file_line * lines;
- const char * filename; /* Full pathname - e.g. "/etc/privoxy/wibble.action" */
- const char * identifier; /* Filename stub - e.g. "wibble". Use for CGI param. */
- /* Pre-encoded with url_encode() for ease of use. */
- const char * version_str; /* Last modification time, as a string. For CGI param */
- /* Can be used in URL without using url_param(). */
- unsigned version; /* Last modification time - prevents chaos with
- * the browser's "back" button. Note that this is a
- * time_t cast to an unsigned. When comparing, always
- * cast the time_t to an unsigned, and *NOT* vice-versa.
- * This may lose the top few bits, but they're not
- * significant anyway.
- */
- int newline; /* Newline convention - one of the NEWLINE_xxx constants.
- * Note that changing this after the file has been
- * read in will cause a mess.
- */
- struct file_line * parse_error; /* On parse error, this is the offending line. */
- const char * parse_error_text; /* On parse error, this is the problem.
- * (Statically allocated) */
+ struct file_line * lines; /**< The contents of the file. A linked list of lines. */
+ const char * filename; /**< Full pathname - e.g. "/etc/privoxy/wibble.action". */
+ const char * identifier; /**< Filename stub - e.g. "wibble". Use for CGI param. */
+ /**< Pre-encoded with url_encode() for ease of use. */
+ const char * version_str; /**< Last modification time, as a string. For CGI param. */
+ /**< Can be used in URL without using url_param(). */
+ unsigned version; /**< Last modification time - prevents chaos with
+ the browser's "back" button. Note that this is a
+ time_t cast to an unsigned. When comparing, always
+ cast the time_t to an unsigned, and *NOT* vice-versa.
+ This may lose the top few bits, but they're not
+ significant anyway. */
+ int newline; /**< Newline convention - one of the NEWLINE_xxx constants.
+ Note that changing this after the file has been
+ read in will cause a mess. */
+ struct file_line * parse_error; /**< On parse error, this is the offending line. */
+ const char * parse_error_text; /**< On parse error, this is the problem.
+ (Statically allocated) */
};
/* FIXME: Following non-static functions should be prototyped in .h or made static */
jb_err cgi_error_file(struct client_state *csp,
struct http_response *rsp,
const char *filename);
+jb_err cgi_error_file_read_only(struct client_state *csp,
+ struct http_response *rsp,
+ const char *filename);
jb_err cgi_error_disabled(struct client_state *csp,
struct http_response *rsp);
const char *name);
#endif /* unused function */
+/* Internal convenience functions */
+static char *section_target(const unsigned sectionid);
+
+/*********************************************************************
+ *
+ * Function : section_target
+ *
+ * Description : Given an unsigned (section id) n, produce a dynamically
+ * allocated string of the form #l<n>, for use in link
+ * targets.
+ *
+ * Parameters :
+ * 1 : sectionid = start line number of section
+ *
+ * Returns : String with link target, or NULL if out of
+ * memory
+ *
+ *********************************************************************/
+static char *section_target(const unsigned sectionid)
+{
+ char buf[30];
+
+ snprintf(buf, 30, "#l%d", sectionid);
+ return(strdup(buf));
+
+}
+
+
/*********************************************************************
*
* Function : map_copy_parameter_html
struct editable_file * file;
struct file_line * cur_line;
unsigned line_number;
+ unsigned section_start_line_number = 0;
jb_err err;
assert(csp);
for (line_number = 1; (cur_line != NULL) && (line_number < patternid); line_number++)
{
+ if (cur_line->type == FILE_LINE_ACTION)
+ {
+ section_start_line_number = line_number;
+ }
cur_line = cur_line->next;
}
if (!err) err = map(exports, "v", 1, file->version_str, 1);
if (!err) err = map(exports, "p", 1, url_encode(lookup(parameters, "p")), 0);
if (!err) err = map(exports, "u", 1, html_encode(cur_line->unprocessed), 0);
+ if (!err) err = map(exports, "jumptarget", 1, section_target(section_start_line_number), 0);
edit_free_file(file);
struct editable_file * file;
struct file_line * cur_line;
unsigned line_number;
+ unsigned section_start_line_number = 0;
jb_err err;
assert(csp);
for (line_number = 1; (cur_line != NULL) && (line_number < patternid); line_number++)
{
+ if (cur_line->type == FILE_LINE_ACTION)
+ {
+ section_start_line_number = line_number;
+ }
cur_line = cur_line->next;
}
err = map(exports, "f", 1, file->identifier, 1);
if (!err) err = map(exports, "v", 1, file->version_str, 1);
- if (!err) err = map(exports, "s", 1, url_encode(lookup(parameters, "s")), 0);
+ if (!err) err = map(exports, "p", 1, url_encode(lookup(parameters, "p")), 0);
if (!err) err = map(exports, "u", 1, html_encode(cur_line->unprocessed), 0);
+ if (!err) err = map(exports, "jumptarget", 1, section_target(section_start_line_number), 0);
edit_free_file(file);
* Description : Write a complete file to disk.
*
* Parameters :
- * 1 : filename = File to write to.
- * 2 : file = Data structure to write.
+ * 1 : file = File to write.
*
* Returns : JB_ERR_OK on success
* JB_ERR_FILE on error writing to file.
* Parameters :
* 1 : line = String from file. Must not start with
* whitespace (else infinite loop!)
- * 2 : name = Destination for name
- * 2 : name = Destination for value
+ * 2 : pname = Destination for name
+ * 2 : pvalue = Destination for value
*
* Returns : JB_ERR_OK on success
* JB_ERR_MEMORY on out-of-memory
* at EOF but it will not have been closed.
* 2 : pfile = Destination for a linked list of file_lines.
* Will be set to NULL on error.
+ * 3 : newline = How to handle newlines.
*
* Returns : JB_ERR_OK on success
* JB_ERR_MEMORY on out-of-memory
}
+/*********************************************************************
+ *
+ * Function : cgi_error_file
+ *
+ * Description : CGI function that is called when a file cannot be
+ * opened for writing by the CGI editor.
+ *
+ * Parameters :
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : filename = The file that we can't write to
+ *
+ * CGI Parameters : none
+ *
+ * Returns : JB_ERR_OK on success
+ * JB_ERR_MEMORY on out-of-memory error.
+ *
+ *********************************************************************/
+jb_err cgi_error_file_read_only(struct client_state *csp,
+ struct http_response *rsp,
+ const char *filename)
+{
+ struct map *exports;
+ jb_err err;
+
+ assert(csp);
+ assert(rsp);
+ assert(filename);
+
+ if (NULL == (exports = default_exports(csp, NULL)))
+ {
+ return JB_ERR_MEMORY;
+ }
+
+ err = map(exports, "f", 1, html_encode(filename), 0);
+ if (err)
+ {
+ free_map(exports);
+ return err;
+ }
+
+ return template_fill_for_cgi(csp, "cgi-error-file-read-only", exports, rsp);
+}
+
+
/*********************************************************************
*
* Function : cgi_error_disabled
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->identifier);
+ }
edit_free_file(file);
return err;
}
target = strdup(CGI_PREFIX "edit-actions-list?f=");
string_append(&target, file->identifier);
+ string_join(&target, section_target(sectionid));
+
edit_free_file(file);
struct editable_file * file;
struct file_line * cur_line;
unsigned line_number;
+ unsigned section_start_line_number = 0;
char * target;
jb_err err;
while ((cur_line != NULL) && (line_number < patternid))
{
+ if (cur_line->type == FILE_LINE_ACTION)
+ {
+ section_start_line_number = line_number;
+ }
cur_line = cur_line->next;
line_number++;
}
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->identifier);
+ }
edit_free_file(file);
return err;
}
target = strdup(CGI_PREFIX "edit-actions-list?f=");
string_append(&target, file->identifier);
+ string_join(&target, section_target(section_start_line_number));
edit_free_file(file);
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->identifier);
+ }
edit_free_file(file);
return err;
}
target = strdup(CGI_PREFIX "edit-actions-list?f=");
string_append(&target, file->identifier);
+ string_join(&target, section_target(sectionid));
edit_free_file(file);
struct file_line * cur_line;
struct file_line * prev_line;
unsigned line_number;
+ unsigned section_start_line_number = 0;
char * target;
jb_err err;
while ((cur_line != NULL) && (line_number < patternid))
{
+ if (cur_line->type == FILE_LINE_ACTION)
+ {
+ section_start_line_number = line_number;
+ }
prev_line = cur_line;
cur_line = cur_line->next;
line_number++;
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->identifier);
+ }
edit_free_file(file);
return err;
}
target = strdup(CGI_PREFIX "edit-actions-list?f=");
string_append(&target, file->identifier);
+ string_join(&target, section_target(section_start_line_number));
edit_free_file(file);
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->identifier);
+ }
edit_free_file(file);
return err;
}
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->identifier);
+ }
edit_free_file(file);
return err;
}
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->identifier);
+ }
edit_free_file(file);
return err;
}
projects / privoxy.git / blobdiff