#include "krcompat.h"
#include "tirrender.h"
/* CONSTANTS: ******************************************************/
/* Valid special characters for
* object names
*/
#define OBJECT_SPECIALS "%+,-./:=@_"
#define DSCOUNT 2 /* No. of records in dstab */
/* MACROS: *********************************************************/
/* GLOBALS: ********************************************************/
struct {
char dataset[30]; /* dataset name */
char root[30]; /* dataset root file system abs. path */
char group[30]; /* htgroup authorized to render (read) dataset */
} dstab[] = { "black", "/path/to/ds/black/root", "black",
"green", "/path/to/ds/green/root", "*" };
/* PROTOTYPES: *****************************************************/
/* FUNCTIONS: ******************************************************/
/* render() - Output HTML rendering of target file or directory.
* - standard header, footer, sidebar(s)
* - content for directories (ref. tirph):
* + title from .title or dir name
* + optional .description
* + list of file titles w/ links to renderer
* + list of .exits dir. titles
* - content for .txt files
* + title from file first line
* + rest of file contents in block
* + escape <, > (others?)
* - content for .html files
* + title from block or first <h1>
* + contents of <body> block or rest after first <h1>
* + ignore file-specific style
* - content for image files (.bmp, .gif, .jpg, .png)
* + title is file name
* + embed image with <img> tag
* - content for other non-binary files (.c, .cgi, .css, .h, .pl,
* .pm, .sh, .shtml, ...)
* + title is file name
* + file contents in <pre> block
* - content for other binary files
* + title is file name
* + "[binary file]"
*/
int render (dataset, object)
char dataset[];
char object[];
{
printf("render dataset=%s|object=%s\n", dataset, object);
return 0;
}
int baddataset (dataset)
char dataset[];
{
char dsroot[] = datasetroot(dataset);
if (dsroot == NULL) return 1;
else return 0;
}
int badobject (dataset, object)
char dataset[];
char object[];
{
char rootdir[] = datasetroot(dataset);
char objpath[];
FILE *ofp;
int n;
/* check for invalid dataset */
if (rootdir == NULL) return 1;
/* for each char. in object */
for (n = 0; n < strlen(object); n++) {
char c = object[n];
/* char. is neither alphanum. nor
* allowed special: return error
*/
if (!isalnum(c) && (strchr(OBJECT_SPECIALS, c) == NULL)) return 1;
}
/* attempt to access parent dir. */
if (!strcmp(object, "..") || !strncmp(object, "../", 3) || strstr(object, "/../") || !strcmp(object + strlen(object) - 3, "/..")) return 1;
/* assemple obj. path and check
* obj. file existence
*/
objpath = (char *) malloc(strlen(rootdir)+strlen(object)+1);
strcpy(objpath, rootdir);
strcat(objpath, "/");
strcat(objpath, object);
ofp = fopen(objpath, "r");
if (ofp == NULL) return 1;
fclose(ofp);
return 0;
}
char *datasetroot (dataset)
char dataset[];
{
int n;
for (n = 0; n < DSCOUNT; n++) {
if (!strcmp(dstab[n].dataset, dataset)) return &dstab[n].root;
}
return NULL;
}