// The functions in this file handle static pages and objects -- a basic web server.
+//
+// Copyright (c) 1996-2021 by the citadel.org team
+//
+// This program is open source software. You can redistribute it and/or
+// modify it under the terms of the GNU General Public License, version 3.
#include <sys/types.h>
#include <sys/stat.h>
#include <stdarg.h>
#include <stddef.h>
#include "webcit.h"
-#include "webserver.h"
+
unsigned char OnePixelGif[37] = {
0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x01, 0x00,
};
-HashList *StaticFilemappings[5] = {NULL, NULL, NULL, NULL, NULL};
-
void output_error_pic(const char *ErrMsg1, const char *ErrMsg2) {
hprintf("HTTP/1.1 200 %s\r\n", ErrMsg1);
hprintf("Content-Type: image/gif\r\n");
/*
* dump out static pages from disk
*/
-void output_static(const char *what) {
+void output_static(char *prefix) {
int fd;
struct stat statbuf;
off_t bytes;
const char *content_type;
int len;
const char *Err;
+ char what[SIZ];
+ if (prefix==NULL) {
+ // Force blank.gif Overrides the request line.
+ strcpy(what,"./static/webcit_icons/blank.gif");
+ } else {
+ snprintf(what, sizeof what, "./%s/%s", prefix, (char *)ChrPtr(WC->Hdr->HR.ReqLine));
+ }
syslog(LOG_DEBUG, "output_static(%s)", what);
len = strlen (what);
}
else {
if (fstat(fd, &statbuf) == -1) {
- syslog(LOG_INFO, "output_static('%s') -- FSTAT FAILED --\n", what);
+ syslog(LOG_INFO, "output_static('%s') : %s", what, strerror(errno));
if (strstr(content_type, "image/") != NULL) {
output_error_pic("Stat failed!", strerror(errno));
}
}
-int LoadStaticDir(const char *DirName, HashList *DirList, const char *RelDir) {
- char dirname[PATH_MAX];
- char reldir[PATH_MAX];
- StrBuf *FileName = NULL;
- StrBuf *Dir = NULL;
- StrBuf *WebDir = NULL;
- StrBuf *OneWebName = NULL;
- DIR *filedir = NULL;
- struct dirent *d;
- struct dirent *filedir_entry;
- int d_type = 0;
- int d_namelen;
- int istoplevel;
-
- if (IsEmptyStr(DirName)) {
- return 0;
- }
-
- filedir = opendir (DirName);
- if (filedir == NULL) {
- return 0;
- }
-
- d = (struct dirent *)malloc(offsetof(struct dirent, d_name) + PATH_MAX + 1);
- if (d == NULL) {
- closedir(filedir);
- return 0;
- }
-
- Dir = NewStrBufPlain(DirName, -1);
- WebDir = NewStrBufPlain(RelDir, -1);
- istoplevel = IsEmptyStr(RelDir);
- OneWebName = NewStrBuf();
-
- while ((readdir_r(filedir, d, &filedir_entry) == 0) && (filedir_entry != NULL)) {
-#ifdef _DIRENT_HAVE_D_NAMLEN
- d_namelen = filedir_entry->d_namlen;
-#else
- d_namelen = strlen(filedir_entry->d_name);
-#endif
-
-#ifdef _DIRENT_HAVE_D_TYPE
- d_type = filedir_entry->d_type;
-#else
-
-#ifndef DT_UNKNOWN
-#define DT_UNKNOWN 0
-#define DT_DIR 4
-#define DT_REG 8
-#define DT_LNK 10
-
-#define IFTODT(mode) (((mode) & 0170000) >> 12)
-#define DTTOIF(dirtype) ((dirtype) << 12)
-#endif
- d_type = DT_UNKNOWN;
-#endif
- if ((d_namelen > 1) && filedir_entry->d_name[d_namelen - 1] == '~')
- continue; /* Ignore backup files... */
-
- if ((d_namelen == 1) &&
- (filedir_entry->d_name[0] == '.'))
- continue;
-
- if ((d_namelen == 2) &&
- (filedir_entry->d_name[0] == '.') &&
- (filedir_entry->d_name[1] == '.'))
- continue;
-
- if (d_type == DT_UNKNOWN) {
- struct stat s;
- char path[PATH_MAX];
- snprintf(path, PATH_MAX, "%s/%s",
- DirName, filedir_entry->d_name);
- if (lstat(path, &s) == 0) {
- d_type = IFTODT(s.st_mode);
- }
- }
-
- switch (d_type) {
- case DT_DIR:
- /* Skip directories we are not interested in... */
- if ((strcmp(filedir_entry->d_name, ".svn") == 0) ||
- (strcmp(filedir_entry->d_name, "t") == 0))
- break;
- snprintf(dirname, PATH_MAX, "%s/%s/",
- DirName, filedir_entry->d_name);
- if (istoplevel)
- snprintf(reldir, PATH_MAX, "%s/",
- filedir_entry->d_name);
- else
- snprintf(reldir, PATH_MAX, "%s/%s/",
- RelDir, filedir_entry->d_name);
- StripSlashes(dirname, 1);
- StripSlashes(reldir, 1);
- LoadStaticDir(dirname, DirList, reldir);
- break;
- case DT_LNK: /* TODO: check whether its a file or a directory */
- case DT_REG:
- FileName = NewStrBufDup(Dir);
- if (ChrPtr(FileName) [ StrLength(FileName) - 1] != '/')
- StrBufAppendBufPlain(FileName, "/", 1, 0);
- StrBufAppendBufPlain(FileName, filedir_entry->d_name, d_namelen, 0);
-
- FlushStrBuf(OneWebName);
- StrBufAppendBuf(OneWebName, WebDir, 0);
- if ((StrLength(OneWebName) != 0) &&
- (ChrPtr(OneWebName) [ StrLength(OneWebName) - 1] != '/'))
- StrBufAppendBufPlain(OneWebName, "/", 1, 0);
- StrBufAppendBufPlain(OneWebName, filedir_entry->d_name, d_namelen, 0);
-
- Put(DirList, SKEY(OneWebName), FileName, HFreeStrBuf);
- /* syslog(LOG_DEBUG, "[%s | %s]\n", ChrPtr(OneWebName), ChrPtr(FileName)); */
- break;
- default:
- break;
- }
-
-
- }
- free(d);
- closedir(filedir);
- FreeStrBuf(&Dir);
- FreeStrBuf(&WebDir);
- FreeStrBuf(&OneWebName);
- return 1;
-}
-
-
-void output_flat_static(void) {
- void *vFile;
- StrBuf *File;
-
- if (WC->Hdr->HR.Handler == NULL)
- return;
- if (GetHash(StaticFilemappings[0], SKEY(WC->Hdr->HR.Handler->Name), &vFile) && (vFile != NULL)) {
- File = (StrBuf*) vFile;
- output_static(ChrPtr(File));
- }
-}
-
-void output_static_safe(HashList *DirList) {
- void *vFile;
- StrBuf *File;
- const char *MimeType;
-
- if (GetHash(DirList, SKEY(WC->Hdr->HR.ReqLine), &vFile) && (vFile != NULL)) {
- File = (StrBuf*) vFile;
- output_static(ChrPtr(File));
- }
- else {
- syslog(LOG_INFO, "output_static_safe() %s: %s", ChrPtr(WC->Hdr->HR.ReqLine), strerror(errno));
- MimeType = GuessMimeByFilename(SKEY(WC->Hdr->HR.ReqLine));
- if (strstr(MimeType, "image/") != NULL) {
- output_error_pic("the file you requested isn't known to our cache", "maybe reload webcit?");
- }
- else {
- do_404();
- }
- }
-}
-
-
-void output_static_0(void) {
- output_static_safe(StaticFilemappings[0]);
-}
-
-void output_static_1(void) {
- output_static_safe(StaticFilemappings[1]);
-}
-
-void output_static_2(void) {
- output_static_safe(StaticFilemappings[2]);
-}
-
-void output_static_3(void) {
- output_static_safe(StaticFilemappings[4]);
-}
-
-
/*
* robots.txt
*/
}
+// These are the various prefixes we can use to fetch static pages.
+void output_static_root(void) { output_static("."); }
+void output_static_static(void) { output_static("static"); }
+void output_static_tinymce(void) { output_static("tiny_mce"); }
+void output_static_acme(void) { output_static(".well-known"); }
+
+
void
ServerStartModule_STATIC
(void)
{
- StaticFilemappings[0] = NewHash(1, NULL);
- StaticFilemappings[1] = NewHash(1, NULL);
- StaticFilemappings[2] = NewHash(1, NULL);
- StaticFilemappings[3] = NewHash(1, NULL);
- StaticFilemappings[4] = NewHash(1, NULL);
}
+
+
void
ServerShutdownModule_STATIC
(void)
{
- DeleteHash(&StaticFilemappings[0]);
- DeleteHash(&StaticFilemappings[1]);
- DeleteHash(&StaticFilemappings[2]);
- DeleteHash(&StaticFilemappings[3]);
- DeleteHash(&StaticFilemappings[4]);
}
-
void
InitModule_STATIC
(void)
{
- LoadStaticDir(static_dirs[0], StaticFilemappings[0], "");
- LoadStaticDir(static_dirs[1], StaticFilemappings[1], "");
- LoadStaticDir(static_dirs[2], StaticFilemappings[2], "");
- LoadStaticDir(static_dirs[3], StaticFilemappings[3], "");
- LoadStaticDir(static_dirs[4], StaticFilemappings[4], "");
-
WebcitAddUrlHandler(HKEY("robots.txt"), "", 0, robots_txt, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC|LOGCHATTY);
- WebcitAddUrlHandler(HKEY("favicon.ico"), "", 0, output_flat_static, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC|LOGCHATTY);
- WebcitAddUrlHandler(HKEY("static"), "", 0, output_static_0, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC|LOGCHATTY);
- WebcitAddUrlHandler(HKEY("static.local"), "", 0, output_static_1, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC|LOGCHATTY);
- WebcitAddUrlHandler(HKEY("tinymce"), "", 0, output_static_2, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC|LOGCHATTY);
- WebcitAddUrlHandler(HKEY("tiny_mce"), "", 0, output_static_2, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC|LOGCHATTY);
- WebcitAddUrlHandler(HKEY("epiceditor"), "", 0, output_static_3, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC|LOGCHATTY);
+ WebcitAddUrlHandler(HKEY("favicon.ico"), "", 0, output_static_root, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC|LOGCHATTY);
+ WebcitAddUrlHandler(HKEY("static"), "", 0, output_static_static, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC|LOGCHATTY);
+ WebcitAddUrlHandler(HKEY("tinymce"), "", 0, output_static_tinymce, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC|LOGCHATTY);
+ WebcitAddUrlHandler(HKEY("tiny_mce"), "", 0, output_static_tinymce, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC|LOGCHATTY);
+ WebcitAddUrlHandler(HKEY(".well-known"), "", 0, output_static_acme, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC|LOGCHATTY);
}