Initial revision

1 files changed, 388 insertions, 0 deletions

diff --git a/local.c b/local.c
new file mode 100644
index 0000000..9a19ef5
--- /dev/null
+++ b/local.c
@@ -0,0 +1,388 @@
+#include "fm.h"
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef READLINK
+#include <unistd.h>
+#endif				/* READLINK */
+#include "local.h"
+
+#define CGIFN_NORMAL     0
+#define CGIFN_DROOT      1
+#define CGIFN_CGIBIN     2
+
+/* setup cookie for local CGI */
+void
+setLocalCookie()
+{
+    Str buf;
+    char hostname[256];
+    gethostname(hostname,256);
+    buf = Sprintf("%d.%ld@%s",getpid(),lrand48(),hostname);
+    Local_cookie = buf->ptr;
+}
+
+Buffer *
+dirBuffer(char *dname)
+{
+    Str tmp;
+    DIR *d;
+    Directory *dir;
+    struct stat st;
+    char **flist;
+    char *p, *qdir;
+    Str fbuf = Strnew();
+#ifdef READLINK
+    struct stat lst;
+    char lbuf[1024];
+#endif				/* READLINK */
+    int i, l, nrow, n = 0, maxlen = 0;
+    int nfile, nfile_max = 100;
+    Str dirname;
+
+    d = opendir(dname);
+    if (d == NULL)
+	return NULL;
+    dirname = Strnew_charp(dname);
+    qdir = htmlquote_str(dirname->ptr);
+    tmp = Sprintf("<title>Directory list of %s</title><h1>Directory list of %s</h1>\n", qdir, qdir);
+    flist = New_N(char *, nfile_max);
+    nfile = 0;
+    while ((dir = readdir(d)) != NULL) {
+	flist[nfile++] = allocStr(dir->d_name, 0);
+	if (nfile == nfile_max) {
+	    nfile_max *= 2;
+	    flist = New_Reuse(char *, flist, nfile_max);
+	}
+	if (multicolList) {
+	    l = strlen(dir->d_name);
+	    if (l > maxlen)
+		maxlen = l;
+	    n++;
+	}
+    }
+
+    if (multicolList) {
+	l = COLS / (maxlen + 2);
+	if (!l)
+	    l = 1;
+	nrow = (n + l - 1) / l;
+	n = 1;
+	Strcat_charp(tmp, "<TABLE CELLPADDING=0><TR VALIGN=TOP>\n");
+    }
+    qsort((void *) flist, nfile, sizeof(char *), strCmp);
+    for (i = 0; i < nfile; i++) {
+	p = flist[i];
+	if (strcmp(p, ".") == 0)
+	    continue;
+	Strcopy(fbuf, dirname);
+	if (Strlastchar(fbuf) != '/')
+	    Strcat_char(fbuf, '/');
+	Strcat_charp(fbuf, p);
+#ifdef READLINK
+	if (lstat(fbuf->ptr, &lst) < 0)
+	    continue;
+#endif				/* READLINK */
+	if (stat(fbuf->ptr, &st) < 0)
+	    continue;
+	if (multicolList) {
+	    if (n == 1)
+		Strcat_charp(tmp, "<TD><NOBR>");
+	}
+	else {
+	    if (S_ISDIR(st.st_mode))
+		Strcat_charp(tmp, "[DIR]&nbsp; ");
+#ifdef READLINK
+	    else if (S_ISLNK(lst.st_mode))
+		Strcat_charp(tmp, "[LINK] ");
+#endif				/* READLINE */
+	    else
+		Strcat_charp(tmp, "[FILE] ");
+	}
+	Strcat_m_charp(tmp, "<A HREF=\"", htmlquote_str(fbuf->ptr), NULL);
+	if (S_ISDIR(st.st_mode))
+	    Strcat_char(tmp, '/');
+	Strcat_m_charp(tmp, "\">", htmlquote_str(p), NULL);
+	if (S_ISDIR(st.st_mode))
+	    Strcat_char(tmp, '/');
+	Strcat_charp(tmp, "</a>");
+	if (multicolList) {
+	    if (n++ == nrow) {
+		Strcat_charp(tmp, "</NOBR></TD>\n");
+		n = 1;
+	    }
+	    else {
+		Strcat_charp(tmp, "<BR>\n");
+	    }
+	}
+	else {
+#ifdef READLINK
+	    if (S_ISLNK(lst.st_mode)) {
+		if ((l = readlink(fbuf->ptr, lbuf, sizeof(lbuf))) > 0) {
+		    lbuf[l] = '\0';
+		    Strcat_m_charp(tmp, " -> ", htmlquote_str(lbuf), NULL);
+		    if (S_ISDIR(st.st_mode))
+			Strcat_char(tmp, '/');
+		}
+	    }
+#endif				/* READLINK */
+	    Strcat_charp(tmp, "<br>\n");
+	}
+    }
+    if (multicolList) {
+	Strcat_charp(tmp, "</TR></TABLE>\n");
+    }
+
+    return loadHTMLString(tmp);
+}
+
+#ifdef __EMX__
+char *
+get_os2_dft(const char *name, char *dft)
+{
+    char *value = getenv(name);
+    return value ? value : dft;
+}
+
+#define lib_dir get_os2_dft("W3M_LIB_DIR",LIB_DIR)
+#else				/* not __EMX__ */
+#define lib_dir LIB_DIR
+#endif				/* not __EMX__ */
+
+static int
+check_local_cgi(char *file, int status)
+{
+    struct stat st;
+
+#ifdef __EMX__
+    if (status != CGIFN_CGIBIN) {
+	char tmp[_MAX_PATH];
+
+	_abspath(tmp, lib_dir, _MAX_PATH);	/* Translate '\\'  to  '/' 
+						 * 
+						 */
+	if (strnicmp(file, tmp, strlen(tmp)))	/* and ignore case  */
+	    return -1;
+    }
+#else				/* not __EMX__ */
+    if (status != CGIFN_CGIBIN &&
+	strncmp(file, lib_dir, strlen(lib_dir)) != 0) {
+	/* 
+	 * a local-CGI script should be located on either
+	 * /cgi-bin/ directory or LIB_DIR (typically /usr/local/lib/w3m).
+	 */
+	return -1;
+    }
+#endif				/* not __EMX__ */
+    if (stat(file, &st) < 0)
+	return -1;
+    if ((st.st_uid == geteuid() && (st.st_mode & S_IXUSR)) ||
+	(st.st_gid == getegid() && (st.st_mode & S_IXGRP)) ||
+	(st.st_mode & S_IXOTH)) {	/* executable */
+	return 0;
+    }
+    return -1;
+}
+
+void
+set_environ(char *var, char *value)
+{
+#ifdef HAVE_SETENV
+    setenv(var, value, 1);
+#else				/* not HAVE_SETENV */
+#ifdef HAVE_PUTENV
+    Str tmp = Strnew_m_charp(var, "=", value, NULL);
+    putenv(tmp->ptr);
+#else				/* not HAVE_PUTENV */
+    extern char **environ;
+    char **ne;
+    char *p;
+    int i, l, el;
+    char **e, **newenv;
+
+    /* I have no setenv() nor putenv() */
+    /* This part is taken from terms.c of skkfep */
+    l = strlen(var);
+    for (e = environ, i = 0; *e != NULL; e++, i++) {
+	if (strncmp(e, var, l) == 0 && (*e)[l] == '=') {
+	    el = strlen(*e) - l - 1;
+	    if (el >= strlen(value)) {
+		strcpy(*e + l + 1, value);
+		return 0;
+	    }
+	    else {
+		for (; *e != NULL; e++, i++) {
+		    *e = *(e + 1);
+		}
+		i--;
+		break;
+	    }
+	}
+    }
+    newenv = (char **) GC_malloc((i + 2) * sizeof(char *));
+    if (newenv == NULL)
+	return;
+    for (e = environ, ne = newenv; *e != NULL; *(ne++) = *(e++));
+    *(ne++) = p;
+    *ne = NULL;
+    environ = newenv;
+#endif				/* not HAVE_PUTENV */
+#endif				/* not HAVE_SETENV */
+}
+
+static void
+set_cgi_environ(char *name, char *fn, char *req_uri)
+{
+    set_environ("SERVER_SOFTWARE", version);
+    set_environ("SERVER_PROTOCOL", "HTTP/1.0");
+    set_environ("SERVER_NAME", "localhost");
+    set_environ("SERVER_PORT", "80");	/* dummy */
+    set_environ("REMOTE_HOST", "localhost");
+    set_environ("REMOTE_ADDR", "127.0.0.1");
+    set_environ("GATEWAY_INTERFACE", "CGI/1.1");
+
+    set_environ("SCRIPT_NAME", name);
+    set_environ("SCRIPT_FILENAME", fn);
+    set_environ("REQUEST_URI", req_uri);
+    set_environ("LOCAL_COOKIE",Local_cookie);
+}
+
+static Str
+checkPath(char *fn, char *path)
+{
+    Str tmp;
+    struct stat st;
+    while (*path) {
+	tmp = Strnew();
+	while (*path && *path != ':')
+	    Strcat_char(tmp, *path++);
+	if (*path == ':')
+	    path++;
+	if (Strlastchar(tmp) != '/')
+	    Strcat_char(tmp, '/');
+	Strcat_charp(tmp, fn);
+	if (stat(tmp->ptr, &st) == 0)
+	    return tmp;
+    }
+    return NULL;
+}
+
+static char *
+cgi_filename(char *fn, int *status)
+{
+    Str tmp;
+    struct stat st;
+    if (cgi_bin != NULL && strncmp(fn, "/cgi-bin/", 9) == 0) {
+	*status = CGIFN_CGIBIN;
+	tmp = checkPath(fn + 9, cgi_bin);
+	if (tmp == NULL)
+	    return fn;
+	return tmp->ptr;
+    }
+    if (strncmp(fn, "/$LIB/", 6) == 0) {
+	*status = CGIFN_NORMAL;
+	tmp = Strnew_charp(lib_dir);
+	fn += 5;
+	if (Strlastchar(tmp) == '/')
+	    fn++;
+	Strcat_charp(tmp, fn);
+	return tmp->ptr;
+    }
+    if (*fn == '/' && document_root != NULL && stat(fn, &st) < 0) {
+	*status = CGIFN_DROOT;
+	tmp = Strnew_charp(document_root);
+	if (Strlastchar(tmp) != '/')
+	    Strcat_char(tmp, '/');
+	Strcat_charp(tmp, fn);
+	return tmp->ptr;
+    }
+    *status = CGIFN_NORMAL;
+    return fn;
+}
+
+FILE *
+localcgi_post(char *file, FormList * request, char *referer)
+{
+    FILE *f;
+    Str tmp1, tmp2;
+    int status;
+
+    tmp1 = Strnew_charp(file);
+    file = cgi_filename(file, &status);
+    if (check_local_cgi(file, status) < 0)
+	return NULL;
+    set_cgi_environ(tmp1->ptr, file, tmp1->ptr);
+    set_environ("REQUEST_METHOD", "POST");
+    set_environ("CONTENT_LENGTH", Sprintf("%d", request->length)->ptr);
+    if (referer && referer != NO_REFERER)
+        set_environ("HTTP_REFERER",referer);
+    if (request->enctype == FORM_ENCTYPE_MULTIPART) {
+	set_environ("CONTENT_TYPE",
+		    Sprintf("multipart/form-data; boundary=%s", request->boundary)->ptr);
+    }
+    else {
+	set_environ("CONTENT_TYPE", "application/x-www-form-urlencoded");
+    }
+    tmp1 = tmpfname(TMPF_DFL, NULL);
+    f = fopen(tmp1->ptr, "w");
+    if (f == NULL)
+	return NULL;
+    pushText(fileToDelete, tmp1->ptr);
+    if (request->enctype == FORM_ENCTYPE_MULTIPART) {
+	FILE *fd;
+	int c;
+	fd = fopen(request->body, "r");
+	if (fd != NULL) {
+	    while ((c = fgetc(fd)) != EOF)
+		fputc(c, f);
+	    fclose(fd);
+	}
+    }
+    else {
+	fputs(request->body, f);
+    }
+    fclose(f);
+    tmp2 = Sprintf("%s < %s", file, tmp1->ptr);
+#ifdef __EMX__
+    f = popen(tmp2->ptr, "r");
+#else
+    tmp1 = Strnew_charp(CurrentDir);
+    chdir(mydirname(file));
+    f = popen(tmp2->ptr, "r");
+    chdir(tmp1->ptr);
+#endif
+    return f;
+}
+
+FILE *
+localcgi_get(char *file, char *request, char *referer)
+{
+    FILE *f;
+    Str tmp1, tmp2;
+    int status;
+    
+    tmp1 = Strnew_charp(file);
+    file = cgi_filename(file, &status);
+    if (check_local_cgi(file, status) < 0)
+	return NULL;
+    if (!strcmp(request, "")) {
+        set_cgi_environ(tmp1->ptr, file, tmp1->ptr);
+    } else {
+        set_cgi_environ(tmp1->ptr, file,
+			Strnew_m_charp(tmp1->ptr, "?", request, NULL)->ptr);
+    }
+    if (referer && referer != NO_REFERER)
+        set_environ("HTTP_REFERER",referer);
+    set_environ("REQUEST_METHOD", "GET");
+    set_environ("QUERY_STRING", request);
+    tmp2 = Sprintf("%s", file);
+#ifdef __EMX__
+    f = popen(tmp2->ptr, "r");
+#else
+    tmp1 = Strnew_charp(CurrentDir);
+    chdir(mydirname(file));
+    f = popen(tmp2->ptr, "r");
+    chdir(tmp1->ptr);
+#endif
+    return f;
+}