WebSVN – wimsdev – Blame – /trunk/wims/src/wims.c

Rev	Author	Line No.	Line
10	reyssat	1	/* Copyright (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis
		2	*
		3	* This program is free software; you can redistribute it and/or modify
		4	* it under the terms of the GNU General Public License as published by
		5	* the Free Software Foundation; either version 2 of the License, or
		6	* (at your option) any later version.
		7	*
		8	* This program is distributed in the hope that it will be useful,
		9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
		10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		11	* GNU General Public License for more details.
		12	*
		13	* You should have received a copy of the GNU General Public License
		14	* along with this program; if not, write to the Free Software
		15	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
		16	*/
		17
8155	bpr	18	/* Web exerciser */
10	reyssat	19
8178	bpr	20	#include "wims.h"
		21
8121	bpr	22	struct {
		23	char *name;
		24	char *font;
		25	} charname[]={
		26	{"en","iso-8859-1"},
		27	{"fr","iso-8859-1"},
		28	{"es","iso-8859-1"},
		29	{"cn","gb2312"},
		30	{"de","iso-8859-1"},
		31	{"it","iso-8859-1"},
		32	{"nl","iso-8859-1"},
		33	{"si","iso-8859-2"},
		34	{"ar","iso-8859-6"},
		35	{"tw","big5"},
		36	{"pt","iso-8859-1"},
		37	{"ca","iso-8859-1"},
		38	{"pt","iso-8859-1"},
		39	{"ru","iso-8859-5"},
		40	{"ty","iso-8859-13"}
		41	};
		42
		43	#define charname_no (sizeof(charname)/sizeof(charname[0]))
		44
8155	bpr	45	/* left to right or right to left writing */
8121	bpr	46	struct {
		47	char *name;
		48	char *dirn;
		49	} dirnname[]={
		50	{"en","ltr"},
		51	{"fr","ltr"},
		52	{"es","ltr"},
		53	{"cn","ltr"},
		54	{"de","ltr"},
		55	{"it","ltr"},
		56	{"nl","ltr"},
		57	{"si","ltr"},
		58	{"ar","rtl"},
		59	{"tw","ltr"},
		60	{"pt","ltr"},
		61	{"ca","ltr"},
		62	{"pt","ltr"},
		63	{"ru","ltr"},
		64	{"ty","ltr"}
		65
		66	};
		67
		68	#define dirnname_no (sizeof(dirnname)/sizeof(dirnname[0]))
		69
		70
10	reyssat	71	#define evalue strevalue
		72	char *robot_session="../tmp/robot";
		73	int robot_access=0,human_access=0;
		74	int user_error_nolog=0;
		75	char *good_agent[]={
		76	"Mozilla","Netscape","Opera","WIMS",
		77	"MSIE","Konqueror","Java"
		78	};
		79	#define good_agent_no (sizeof(good_agent)/sizeof(good_agent[0]))
		80
		81	char bad_agent[]={ / These are really bad agents: prohibited. */
7673	bpr	82	"HTTrack","MemoWeb","Teleport","Offline","Wget","eCatch",
10	reyssat	83	"Powermarks","EmailSiphon", "WebCopier"
		84	};
		85	#define bad_agent_no (sizeof(bad_agent)/sizeof(bad_agent[0]))
		86
		87	/* used for debugging */
		88	int debug=0;
		89
		90	char class_dir[MAX_FNAME+1]; /* directory name of this class */
		91
8185	bpr	92	struct user_variable user_variable[MAX_VAR_NUM];
10	reyssat	93	int user_var_no;
		94
8185	bpr	95	struct VAR_DEF var_def[MAX_VAR_NUM];
10	reyssat	96	int defined_var_total;
		97
7673	bpr	98	/* Destinated to module error messages */
10	reyssat	99	WORKING_FILE m_file,svar_file,mcache[MAX_MCACHE];
		100	int mcachecnt;
		101
7673	bpr	102	/* Limit for any data working files. */
10	reyssat	103	int WORKFILE_LIMIT=2048*1024;
		104
7673	bpr	105	/* whether the user has defined language */
10	reyssat	106	int user_lang=0;
		107
7673	bpr	108	/* for instex grouping */
10	reyssat	109	int instex_cnt=0, getwimstexsize=1;
		110	char instex_src[MAX_LINELEN+1], instex_fname[MAX_LINELEN+1];
		111	char *instex_processor="tex..gif";
		112
7673	bpr	113	/* Cookie management */
10	reyssat	114	char cookiegot[256], cookieset[256], cookieheader[64]="WIMSUSER=";
		115
7673	bpr	116	/* multipart boundary */
10	reyssat	117	char mpboundary[1024];
		118	int deplen=0; /* length of deposit */
		119
		120	int confset=0; /* set to 1 if setvar for config */
		121
7673	bpr	122	/* Operating mode: default, popup, raw, etc. */
8185	bpr	123
10	reyssat	124	int mode=mode_default;
		125
7673	bpr	126	/* Switch; notice subroutines wherether we are outputing. */
10	reyssat	127	int outputing;
		128
		129	char home_module="home"; / name of home module */
7673	bpr	130	extern char *environ; / table of environment variables */
10	reyssat	131	int module_defined=0;
		132
		133	/* directory prefix buffers */
		134	char session_prefix[MAX_FNAME+1], s2_prefix[MAX_FNAME+1], module_prefix[MAX_FNAME+1];
		135
		136	char *stdinbuf;
7673	bpr	137	int sesrandomtab[MAX_SESRANDOM]; /* session random values */
10	reyssat	138	char multiexec_random[64];
		139	int executed_gotos; /* number of goto's executed. to check with GOTO_LIMIT. */
		140	int insert_no; /* number of instex, insplot, insPLOT. */
		141	int output_length; /* length of the output. */
7673	bpr	142	int isexam=0; /* non-zero if request is exam */
		143	int simuxam=0; /* exam is simulation */
		144	int is_multiexec=0; /* for execredirected */
10	reyssat	145	int multiexec_index;
		146	int direct_datafile=0;
		147	int exec_is_module=0;
		148	/* root directory of modules */
		149	char *module_dir="modules";
		150	int new_session=0; /* =1 if new session created */
7673	bpr	151	int good_httpd=0; /* Whether the http server is intelligent */
10	reyssat	152	/* int internal_sql=0; / / for internal sql use */
		153	int direct_exec=0; /* calc routine is exected by exec if 1 */
		154	int print_precision=8; /* precision when printing real numbers */
		155	int session_serial; /* request serial for session control */
7673	bpr	156	int form_access=0; /* identifies form access, for robot identification */
		157	int lastout_file=-1; /* file to hold last output */
		158	char instex_style=""; / "": text "$": math "$$": displaymath */
		159	int instex_usedynamic=0; /* always dynamic if 1 */
		160	int wrapexec=0; /* if set to 1, change uid (nobody) to euid (wims).
		161	* if set to -1, change euid to uid when exec(). */
		162	int parm_restore=0; /* Restoring saved parameters? */
		163	int exec_wait=1; /* whether to wait for fork return */
		164	int execnt=0; /* count executions */
		165	int readnest; /* nested read count */
		166	int mfilecnt=0; /* count working files */
		167	int forceresume=0; /* force user to resume old request */
		168	int manageable=0; /* whether the connection may be site manager
		169	* 0: no; 1: maybe; 2: sure */
		170	int ismhelp=0; /* 1 if session is in mhelp. */
		171	int getvar_len; /* length of the last-got variable. */
		172	int noout=0; /* if set to 1 then output is skipped */
		173	char tmp_dir[MAX_FNAME+1]; /* temporary directory */
		174	char bin_dir="bin"; / directory containing executable scripts and programs. */
		175	char cwdbuf[MAX_FNAME+1]; /* store current working directory */
		176	char var_hacking=0; /* Trying to hack a variable? */
10	reyssat	177	char *tmp_debug="no";
11104	bpr	178	char *tmp_debug_var="";
7673	bpr	179	char ins_alt[MAX_LINELEN+1]; /* dynamic insertion alternative text */
		180	char devel_modules="close"; / whether to open devel modules */
		181	int isclassmodule=0; /* 1 if the module is class module */
		182	int isdevelmodule=0; /* development module? */
		183	int setcookie=0; /* 1 if need to set cookie */
		184	int killpid=0; /* pid of process to kill by alarm */
		185	char mathalign_sup1, mathalign_sup2; /* see mathalign_base */
		186	int substnest=0; /* nesting level of substit() */
10	reyssat	187	int exodepOK=1;
7673	bpr	188	long int startmtime; /* start time in milliseconds */
		189	long int startmtime2; /* start time in microseconds */
		190	int backslash_insmath=0; /* \(...) substitution? */
		191	char examlogf[MAX_FNAME+1]; /* examlog file name */
		192	char examlogd[MAX_FNAME+1]; /* examlog file name */
		193	char exam_sheetexo[32]; /* sheet data of an exam */
10	reyssat	194	char loadavg[64];
7673	bpr	195	/* user file variable access control. */
10	reyssat	196	char var_readable, var_writable, var_nr, var_nw, *var_pfx;
		197	int hostcquota;
7673	bpr	198	int var_noexport; /* do not export variable */
10	reyssat	199
7673	bpr	200	char tmplbuf[MAX_LINELEN+1]; /* for temporary uses not thru subroutines. */
10	reyssat	201
7673	bpr	202	struct tm now, Now; / time of request */
10	reyssat	203	time_t nowtime, limtime, limtimex;
		204	char nowstr[32];
		205
7673	bpr	206	/* Resource limits. Capital names are reserved by system. */
		207	int rlimit_cpu=20; /* cpu time in seconds */
10	reyssat	208	int rlimit_fsize=8388608;/* file size */
5222	guerimand	209	int rlimit_as=614457600;/* virtual memory size */
		210	int rlimit_data=204857600;/* data segment size; maxima requires a lot (must be lower than rlimit_as)*/
10	reyssat	211	int rlimit_stack=2097152;/* stack size */
7673	bpr	212	int rlimit_core=0; /* core dump size */
		213	int rlimit_rss=16777216; /* resident size */
		214	int rlimit_nproc=1024; /* number of processes */
		215	int rlimit_nofile=512; /* number of open files */
10	reyssat	216	int rlimit_memlock=2097152;/* locked-in-memory address space */
		217
		218	char var_str; / malloc'ed buffer to hold translated query_string */
		219
7673	bpr	220	/* buffer to hold module's variable definition file, malloc'ed. */
10	reyssat	221	char *var_def_buf;
		222
8185	bpr	223	/* job_identifier is even a reserved variable name */
10	reyssat	224	char job_identifier[32];
		225
8185	bpr	226	/* site manager definition IPv4 IPv6*/
4648	bpr	227	char *manager_site="127.0.0.1 ::1";
10	reyssat	228	int manager_https=0;
		229
8185	bpr	230	/* sheet and exercise information */
10	reyssat	231	int wims_sheet=0,wims_exo=0;
		232
8185	bpr	233	/* Form method: get or post */
10	reyssat	234	char *default_form_method="post";
		235
8185	bpr	236	/* Je suis maintenant oblige de passer a l'anglais
		237	* pour la langue de defaut.
		238	*/
10	reyssat	239	char lang[16]="en";
		240	char available_lang[MAX_LANGUAGES][4]={"en","fr"};
		241	int available_lang_no=2;
		242	char pre_language[4]="";
10051	bpr	243	FILE *trace_file;
11104	bpr	244	int trace_indent=0;
10	reyssat	245	char protocol="http"; / http or https */
		246
8185	bpr	247	/* check for coordinate input. This will mean that
		248	* the request is manual, but not robot.
		249	*/
10	reyssat	250	int coord_input=0;
		251
8155	bpr	252	/* These are readonly environment variable names
		253	* special parm used for special cmds (getins, etc).
		254	*/
10	reyssat	255	char *ro_name[]={
		256	"cmd" ,
		257	"empty",
		258	"lang" ,
		259	"module" ,
		260	"session" ,
		261	"special_parm",
		262	"special_parm2",
1970	guerimand	263	"special_parm3",
1980	guerimand	264	"special_parm4",
10	reyssat	265	"useropts" ,
		266	"wims_session",
		267	"wims_subsession",
		268	"wims_window",
		269	"worksheet"
		270	};
		271
8185	bpr	272	int RO_NAME_NO=(sizeof(ro_name)/sizeof(ro_name[0]));
		273
10	reyssat	274	int cmd_type;
		275	char *commands[]={
		276	"intro" , "new" , "renew" , "reply" , "config" , "hint" , "help" ,
		277	"resume", "next", "getins", "getframe", "getfile", "close", "ref"
		278	};
		279
8185	bpr	280	int CMD_NO=(sizeof(commands)/sizeof(commands[0]));
		281
8155	bpr	282	/* stat=0: saved variables
		283	* all names starting with wims_priv_ are also internal.
		284	*/
8185	bpr	285	struct internal_name internal_name[]={
7673	bpr	286	{"accessright", 1}, /* right to access commercial resources */
		287	{"caller", 1}, /* caller session */
		288	{"check", 1}, /* for exam check use */
		289	{"class", 1},
		290	{"class_examlog", 1},
		291	{"class_exolog", 1},
		292	{"class_limit", 1},
		293	{"class_quota", 1},
		294	{"class_regpass", 1},
		295	{"class_user_limit", 1},
		296	{"classdir", 1},
		297	{"classname", 1},
10	reyssat	298	{"devel_modules", 1},
7673	bpr	299	{"developer", 1},
		300	{"doc_quota", 1},
		301	{"doc_regpass", 1},
		302	{"email", 1},
		303	{"exo", 0}, /* exercise number */
		304	{"exoption", 1}, /* exercise option */
		305	{"firstname", 1},
		306	{"forum_limit", 1},
		307	{"home", 1},
		308	{"institutionname", 1},
		309	{"isexam", 0}, /* whether the sheet is an exam sheet */
		310	{"ismanager", 0},
		311	{"lastname", 1},
		312	{"mode", 0}, /* operating mode */
		313	{"module_start_time", 0},
		314	{"now", 1}, /* date and time, yyyymmdd.hh:mm:ss */
		315	{"nowseconds", 1}, /* date and time, seconds since EPOCH */
		316	{"nr", 1}, /* non-readable variables in user file, words */
		317	{"nw", 1}, /* non-writable variables in user file, words */
		318	{"otherclass", 1}, /* Remember other logins */
		319	{"participate", 1}, /* superclass definition */
		320	{"prefix", 1}, /* user file prefix */
		321	{"protocol", 0}, /* http protocol */
		322	{"rafale", 0}, /* rapidfire request information */
		323	{"readable", 1}, /* readable variables in user file, words */
		324	{"realuser", 1}, /* real user for supervisor in gateway */
		325	{"req_time", 0}, /* time of the request */
		326	{"sclassdir", 1},
		327	{"scorereg", 0}, /* score registration flag */
		328	{"sequence", 0}, /sequence number /
		329	{"sescookie", 1}, /* session cookie */
		330	{"sesdir", 1},
		331	{"session_serial", 0}, /* request serial in the session */
		332	{"session_start_time", 0},
		333	{"sheet", 0}, /* sheet number */
		334	{"sup_secure", 1}, /* secure level of supervisor */
		335	{"superclass", 1}, /* superclass code */
		336	{"superclass_quota", 1},
		337	{"supertype", 1}, /* superclass type */
		338	{"supervise", 1}, /* superclass definition */
		339	{"supervisor", 1}, /* real name of the supervisor */
		340	{"supervisormail",1}, /* email of supervisor */
		341	{"trustfile", 1}, /* trusted files in special adm modules */
		342	{"useropts", 1}, /* user options */
		343	{"writable", 1}, /* writable variables in user file, words */
10	reyssat	344	};
8185	bpr	345	int INTERNAL_NAME_NO=(sizeof(internal_name)/sizeof(internal_name[0]));
10	reyssat	346
		347	char *httpd_vars[]={
		348	"HTTP_ACCEPT",
		349	"HTTP_ACCEPT_CHARSET",
		350	"HTTP_ACCEPT_LANGUAGE",
		351	"HTTP_COOKIE",
		352	"HTTP_HOST",
		353	"HTTP_USER_AGENT",
		354	"HTTPS",
		355	"QUERY_STRING",
		356	"REMOTE_HOST",
		357	"REMOTE_ADDR",
		358	"REMOTE_PORT",
		359	"REQUEST_METHOD",
		360	"SCRIPT_NAME",
		361	"SERVER_NAME",
		362	"SERVER_SOFTWARE",
		363	"SERVER_PROTOCOL"
		364	};
		365	#define HTTPD_VAR_NO (sizeof(httpd_vars)/sizeof(httpd_vars[0]))
		366
8155	bpr	367	/* security: these variables will not be visible to child processes */
10	reyssat	368	char *unsetvars[]={
7673	bpr	369	"DOCUMENT_ROOT","SERVER_SIGNATURE","SERVER_SOFTWARE",
10	reyssat	370	"UNIQUE_ID","HTTP_KEEP_ALIVE","SSL_SESSION_ID"
		371	};
		372	#define unsetvarcnt (sizeof(unsetvars)/sizeof(unsetvars[0]))
		373
		374	int httpd_type=httpd_apache;
		375
7673	bpr	376	char remote_addr=""; / storing for performance */
10	reyssat	377	char *remote_host="";
		378
		379	char ref_name[2048], ref_base[2048];
		380
		381	void put_special_page(char *pname);
		382	void useropts(void);
		383
7673	bpr	384	/* Make certain httpd variables readable by modules */
10	reyssat	385	void take_httpd_vars(void)
		386	{
		387	int i;
		388	char *p, buf[MAX_NAMELEN+1];
		389	var_noexport=1;
		390	for(i=0;i<HTTPD_VAR_NO;i++) {
7673	bpr	391	snprintf(buf,sizeof(buf),"httpd_%s",httpd_vars[i]);
		392	if((p=getenv(httpd_vars[i]))!=NULL) setvar(buf,p);
10	reyssat	393	}
		394	var_noexport=0;
7673	bpr	395
10	reyssat	396	for(i=0;i<unsetvarcnt;i++) unsetenv(unsetvars[i]);
4648	bpr	397	/* IPv4 IPv6*/
		398	p=getenv("REMOTE_ADDR");if(p!=NULL && (strcmp(p,"127.0.0.1")==0 \|\| strcmp(p,"::1")==0)) human_access=1;
10	reyssat	399	p=getenv("HTTP_REFERER"); if(p!=NULL && *p!=0) setvar("wims_referer",p);
		400	}
		401
		402	void cookie2session(void)
		403	{
		404	char cksession[64], psession[32], ckey, p;
		405	char nbuf[MAX_FNAME+1];
		406
		407	if(mode==mode_popup) return;
6796	kbelabas	408	if(cookiegot[0]==0) {
7673	bpr	409	ckset: cookiegot[0]=0; setcookie=1; return;
10	reyssat	410	}
		411	p=getvar("special_parm");
		412	if(p!=NULL && strcmp(p,"ignorecookie")==0) return;
		413	mystrncpy(cksession,cookiegot,sizeof(cksession));
		414	ckey=strchr(cksession,'-');
		415	if(ckey==NULL) goto ckset; else *ckey++=0;
		416	p=getvar("wims_session"); if(p==NULL) p="";
		417	if(strstr(p,"new")!=NULL) goto ckset;
		418	mystrncpy(psession,p,sizeof(psession));
		419	p=strchr(psession,'_'); if(p!=NULL) *p=0;
		420	if(psession[0]!=0) {
7673	bpr	421	if(strcmp(psession,cksession)==0) return;
		422	if(session_exists(psession)) goto ckset;
		423	if(session_exists(cksession)) goto change;
10	reyssat	424	}
		425	else {
7673	bpr	426	if(!session_exists(cksession)) return;
		427	change:
		428	p=getenv("HTTPS");
		429	if(p!=NULL && strcasecmp(p,"on")==0) goto ckset;
		430	mkfname(nbuf,"%s/%s/var",session_dir,cksession);
		431	getdef(nbuf,"w_wims_ismanager",tmplbuf);
		432	if(tmplbuf[0]!=0 && tmplbuf[0]!='0') goto ckset;
		433	getdef(nbuf,"w_wims_protocol",tmplbuf);
		434	if(strcasecmp(tmplbuf,"https")==0) goto ckset;
		435	mkfname(nbuf,"%s/%s/var.stat",session_dir,cksession);
		436	getdef(nbuf,"wims_user",tmplbuf);
		437	if(tmplbuf[0]!=0) goto ckset;
		438	force_setvar(ro_name[ro_session],cksession);
		439	setsesdir(cksession);
		440	force_setvar("wims_subsession","");
		441	session_serial=0;
10	reyssat	442	}
		443	}
		444
		445	void determine_font(char *l)
		446	{
		447	int i;
7673	bpr	448
10	reyssat	449	if(l==NULL \|\| *l==0) return;
		450	for(i=0;i<charname_no && memcmp(charname[i].name,l,2);i++);
		451	if(i<charname_no) setvar("wims_main_font",charname[i].font);
		452	}
		453
3278	reyssat	454	void determine_dirn(char *l)
		455	{
		456	int i;
7673	bpr	457
3278	reyssat	458	if(l==NULL \|\| *l==0) return;
		459	for(i=0;i<dirnname_no && memcmp(dirnname[i].name,l,2);i++);
		460	if(i<dirnname_no) setvar("wims_main_dirn",dirnname[i].dirn);
		461	}
		462
10	reyssat	463	void predetermine_language(void)
		464	{
		465	char *p;
		466	int i,n;
		467
		468	if(pre_language[0]!=0) p=pre_language;
		469	else p=getenv("HTTP_ACCEPT_LANGUAGE");
		470	if(p!=NULL && strlen(p)>=2) {
		471	for(i=0;i<available_lang_no && memcmp(p,available_lang[i],2)!=0;i++);
		472	if(i<available_lang_no) goto lend;
		473	}
		474	p=getenv("HTTP_USER_AGENT");
		475	if(p!=NULL && strlen(p)>=5) {
7673	bpr	476	char *q;
		477	if((q=strchr(p,'['))!=NULL && islower((q+1)) && islower((q+2)) && *(q+3)==']') {
		478	char bb[4];
		479	bb[0]=(q+1);bb[1]=(q+2);bb[2]=0;
		480	for(i=0;i<available_lang_no && memcmp(bb,available_lang[i],2)!=0;i++);
		481	if(i<available_lang_no) {
		482	memmove(lang,bb,2); lang[2]=0;
		483	goto lend2;
		484	}
		485	}
10	reyssat	486	}
		487	p=getenv("HTTP_HOST"); if(p==NULL) goto lend2;
		488	n=strlen(p); if(n<=3 \|\| *(p+n-3)!='.') goto lend2;
		489	p=p+n-2;
		490	for(i=0;i<available_lang_no && memcmp(p,available_lang[i],2)!=0;i++);
		491	if(i<available_lang_no) {
7673	bpr	492	lend: memmove(lang,p,2); lang[2]=0;
		493	lend2: determine_font(lang);determine_dirn(lang);
10	reyssat	494	}
		495	}
		496
7673	bpr	497	/* print a special page */
10	reyssat	498	void put_special_page(char *pname)
		499	{
		500	determine_font(lang);
3278	reyssat	501	determine_dirn(lang);
10	reyssat	502	phtml_put_base(mkfname(NULL,"%s.phtml.%s",pname,lang),0);
		503	write_logs();free(var_str);
		504	}
		505
7673	bpr	506	/* check whether the connection is a site manager. */
10	reyssat	507	void manager_check(void)
		508	{
		509	char p, pp, buf[16];
		510	struct stat confstat;
		511	int i;
7673	bpr	512
10	reyssat	513	manageable=0;
		514	if(robot_access \|\| *manager_site==0 \|\| checkhost(manager_site)<1)
		515	goto mend;
		516	if(manager_https) {
7673	bpr	517	p=getenv("HTTPS");
		518	if(p==NULL \|\| strcmp(p,"on")!=0) goto mend;
10	reyssat	519	}
8185	bpr	520	/* IPv4 IPv6*/
4648	bpr	521	if(strcmp(remote_addr,"127.0.0.1")==0 \|\| strcmp(remote_addr,"::1")==0) {
7673	bpr	522	int port, port2;
		523	char tester[128];
		524	p=getenv("REMOTE_PORT"); if(p==NULL) goto mend;
		525	port=atoi(p); if(port<1024 \|\| port>65535) goto mend;
		526	p=getenv("SERVER_PORT"); if(p==NULL) goto mend;
		527	port2=atoi(p); if(port2>=10000 \|\| port2<=0) goto mend;
		528	/* this is very non-portable */
		529	manageable=1;
		530	accessfile(tmplbuf,"r","/proc/net/tcp");
		531	snprintf(tester,sizeof(tester)," 0100007F:%04X 0100007F:%04X ",
		532	port,port2);
		533	p=strstr(tmplbuf,tester);
		534	if(p!=NULL) {
		535	pp=strchr(p,'\n'); if(pp!=NULL) *pp=0;
		536	if(strlen(p)>=75) {
		537	p=find_word_start(p+70); *find_word_end(p)=0;
		538	if(atoi(p)==geteuid()) manageable=2;
		539	}
		540	}
10	reyssat	541	}
		542	else manageable=1;
		543	i=stat(config_file,&confstat);
		544	if(i==0 && manageable>0 && (confstat.st_mode&(S_IRWXO\|S_IRWXG))!=0) manageable=-1;
		545	if(manageable>0 && !trusted_module()) manageable=0;
		546	if(manageable==1) {
7673	bpr	547	accessfile(tmplbuf,"r","%s/.manager",session_prefix);
		548	if(strstr(tmplbuf,"yes")!=NULL) manageable=2;
10	reyssat	549	}
		550	if(manageable==1) {
7673	bpr	551	p=getvar(ro_name[ro_module]);
		552	if(p!=NULL && strncmp(p,"adm/manage",strlen("adm/manage"))==0) {
		553	struct stat pstat;
		554	if(stat("../log/.wimspass",&pstat)==0) {
		555	if((S_IFMT&pstat.st_mode)!=S_IFREG \|\|
		556	((S_IRWXO\|S_IRWXG)&pstat.st_mode)!=0)
		557	manageable=-2;
		558	}
		559	}
10	reyssat	560	}
		561	mend:
		562	mystrncpy(buf,int2str(manageable),sizeof(buf));
		563	force_setvar("wims_ismanager",buf);
		564	if(manageable>=2) {
7673	bpr	565	struct rlimit rlim;
		566	rlimit_cpu*=10;
		567	rlim.rlim_cur=rlim.rlim_max=rlimit_cpu;
		568	setrlimit(RLIMIT_CPU,&rlim);
		569	mystrncpy(buf,int2str(rlimit_cpu),sizeof(buf));
		570	setvar("wims_cpu_limit",buf);
		571	initalarm();
10	reyssat	572	}
		573	}
		574
7673	bpr	575	/* check for robot access */
10	reyssat	576	void robot_check(void)
		577	{
		578	char ua, p, ses, c, *mod;
		579	int i;
		580
		581	if(human_access) return;
		582	mod=getvar(ro_name[ro_module]);
		583	if(mod!=NULL && strcmp(mod,"adm/raw")==0) return;
		584	ses=getvar(ro_name[ro_session]);
7673	bpr	585	/* user has valid session; OK */
10	reyssat	586	if(ses!=NULL && strncmp(ses,robot_session,strlen(robot_session))!=0
		587	&& strchr(ses,'/')==NULL
		588	&& ftest(mkfname(NULL,"%s/%s",s2_dir,ses))==is_dir)
		589	return;
		590	ua=getenv("HTTP_USER_AGENT"); if(ua==NULL) ua="";
		591	ua=find_word_start(ua);
7673	bpr	592	if(strncasecmp(ua,"Mozilla",strlen("Mozilla"))==0 &&
		593	(p=strstr(ua,"compatible"))!=NULL)
10	reyssat	594	ua=find_word_start(find_word_end(p));
		595	if(*ua) {
7673	bpr	596	for(i=0;i<good_agent_no
		597	&& strncasecmp(ua,good_agent[i],strlen(good_agent[i]));i++);
		598	if(i<good_agent_no) return;
		599	for(i=0;i<bad_agent_no
		600	&& strstr(ua,bad_agent[i])==NULL;i++);
		601	if(i<bad_agent_no) user_error("trapped");
10	reyssat	602	}
		603	force_setvar(ro_name[ro_session],robot_session);
		604	setsesdir(robot_session);
		605	c=getvar(ro_name[ro_cmd]);
		606	robot_access=1;
		607	if(c!=NULL && strcmp(c,"new") && strcmp(c,"intro")) {
7673	bpr	608	force_setvar(ro_name[ro_cmd],"robot_error");
		609	nph_header(450); put_special_page("robot");
		610	flushoutput(); flushlog(); exit(0);
10	reyssat	611	}
		612	}
		613
7673	bpr	614	/* type=0: ordinary; type=1: multipart/form-data */
10	reyssat	615	void parse_query_string(int len, int type)
		616	{
		617	int i,j,l,v,cmd_defined;
		618	int parenth=-1, ll, lb, dlen;
		619	char start, p, p1, pt, *b1="";
7673	bpr	620
10	reyssat	621	cmd_defined=0;
		622	setvar("wims_subsession","");
		623	ll=lb=0;
		624	if(type) {
7673	bpr	625	ll=strlen(mpboundary);
		626	start=strstr(var_str,mpboundary);
		627	if(start==NULL) start=var_str+strlen(var_str);
		628	if(strstr(var_str,"\r\n\r\n")!=NULL) b1="\r\n\r\n";
		629	else b1="\n\n";
		630	lb=strlen(b1);
10	reyssat	631	}
		632	else start=var_str;
		633	for(v=0, p1=start;p1<var_str+len;p1+=l) {
7673	bpr	634	if(type) {
		635	char p2, p3, p4, p5;
		636	p2=p1+ll; p3=memstr(p2,mpboundary,var_str+len-p2); l=p3-p1;
		637	p=memstr(p2,b1,var_str+len-p2); if(p>=p3) continue;
		638	p+=lb; if(p3<var_str+len) {
11125	georgesk	639	while(*p3!='\n' && p3>p2) p3--;
11132	bpr	640	*p3=0;
7673	bpr	641	p3--; if(p3=='\r') p3=0;
		642	}
		643	dlen=p3-p;
		644	p2=memstr(p2,"name=",p3-p2); if(p2>=p3) continue;
		645	p2+=strlen("name="); if(*p2=='"') p2++;
		646	for(p3=p2; myisalnum(p3) \|\| strchr("._",p3)!=NULL; p3++);
		647	if(p3==p2) continue;
		648	if(p3-p2==strlen("wims_deposit") &&
		649	strncmp(p2,"wims_deposit",p3-p2)==0) {
		650	p4=memstr(p1,"filename=",p-p1); if(p4<p) {
		651	p4+=strlen("filename="); if(*p4=='"') {
		652	p4++; p5=strchr(p4,'"');
		653	if(p5==NULL \|\| p5-p4>=MAX_FNAME) goto emptyquote;
		654	}
		655	else {
		656	emptyquote:
		657	for(p5=p4; p5<p && !isspace(*p5) &&
		658	strchr(";\"~#?=,'",p5)==NULL; p5++);
		659	}
		660	if(p5>p4) {
		661	*p5=0;
		662	for(p5--;
		663	p5>=p4 && !isspace(p5) && strchr("/\\:",p5)==NULL;
		664	p5--);
11125	georgesk	665	if(p5>=p4) p4=p5+1;
11132	bpr	666	if(*p4==0) goto noname;
7673	bpr	667	if(strstr(p4,"..")!=NULL \|\| *p4=='.')
		668	p4="noname.file";
		669	setvar("wims_deposit",p4);
		670	}
		671	else {
		672	noname: setvar("wims_deposit","noname.file");
		673	}
		674	}
		675	deplen=dlen;
		676	}
		677	*p3=0; l-=p2-p1; p1=p2;
		678	}
		679	else {
		680	p1=find_word_start(p1);
		681	l=strlen(p1)+1; p=strchr(p1,'=');
		682	if(p==NULL) p=p1+strlen(p1);
		683	if(*p==0 && l>1) {
		684	user_variable[v].name="no_name";
		685	user_variable[v].value=p1;
		686	coord_input=1;
		687	goto nnext;
		688	}
		689	*p++=0;
		690	}
		691	/* empty name or empty value: ignore */
10	reyssat	692	if(p1==0 \|\| p==0) continue;
7673	bpr	693	/* We do not treat names containing '.' */
		694	for(pt=strchr(p1,'.'); pt; pt=strchr(++pt,'.')) *pt='_';
		695	/* Restrictions on variable names */
		696	for(pt=p1; myisalnum(pt) \|\| pt=='_'; pt++);
		697	if(*pt) continue;
		698	if(strcmp(p1,"wims_deposit")!=0) _tolinux(p);
		699	/* This is a restriction:
8155	bpr	700	* Every parameter must have matching parentheses.
		701	*/
7673	bpr	702	if(parenth==-1 && strncmp(p1,"freepar_",strlen("freepar_"))!=0
		703	&& strcmp(p1,"wims_deposit")!=0
		704	&& check_parentheses(p,1)) parenth=v;
		705	if(strcmp(p1,"special_parm")==0 && strcmp(p,"wims")==0)
		706	human_access=1;
		707	j=search_list(ro_name,RO_NAME_NO,sizeof(ro_name[0]),p1);
		708	if(j>=0) {
		709	if(j==ro_session) {
		710	p=find_word_start(p); *find_word_end(p)=0;
		711	if(strlen(p)>MAX_SESSIONLEN) continue;
		712	if(strcmp(p,robot_session)==0) p="";
		713	if(strcasecmp(p,"popup")==0) {
		714	mode=mode_popup;
		715	force_setvar("wims_mode","popup");
		716	force_setvar("session","");
		717	continue;
		718	}
		719	}
		720	if(j==ro_module) module_defined=1;
		721	if(j==ro_cmd) {
		722	p=find_word_start(p); *find_word_end(p)=0;
		723	if(strlen(p)>16) continue;
		724	cmd_defined=1;
		725	}
		726	if(j==ro_lang) {
		727	if(strlen(p)!=2) continue;
		728	for(i=0;i<available_lang_no && strcmp(available_lang[i],p)!=0;i++);
		729	if(i<available_lang_no) {user_lang=1; ovlstrcpy(lang,p);}
		730	else continue;
		731	}
		732	/* strip leading and trailing '/'s in module name */
		733	if(j==ro_module) {
		734	p=find_word_start(p); *find_word_end(p)=0;
		735	while(*p=='/') p++;
		736	while(p!=0 && (p+strlen(p)-1)=='/') *(p+strlen(p)-1)=0;
		737	if(strlen(p)>MAX_MODULELEN) continue;
		738	}
		739	setvar(p1,p);
		740	if(j==ro_session && mode!=mode_popup) {
		741	char pp, pr;
		742	char buf[1024];
		743	mystrncpy(buf,p,sizeof(buf));
		744	if((pp=strchr(buf,'.'))!=NULL) {
		745	*pp++=0; session_serial=atoi(pp);
		746	if(pp<0) pp=0;
		747	}
		748	else session_serial=0;
		749	pp=strchr(buf,'_');
		750	if(pp!=NULL && (pr=strstr(pp,"_mhelp"))!=NULL) {
		751	*pr=0; ismhelp=1; lastout_file=-1;
		752	setvar("wims_inssub","mh");
		753	}
		754	force_setvar("wims_session",buf);
		755	if(pp!=NULL) force_setvar("wims_subsession",pp);
		756	}
		757	continue;
		758	}
		759	user_variable[v].name=p1;
		760	user_variable[v].value=p;
		761	nnext:v++; if(v>=MAX_VAR_NUM) user_error("too_many_variables");
10	reyssat	762	}
		763	user_var_no=v;
		764	if(parenth>=0) {
7673	bpr	765	char buf[16];
		766	mystrncpy(buf,int2str(user_var_no),sizeof(buf));
		767	setvar("user_var_no",buf);
		768	for(i=0;i<user_var_no;i++) {
		769	snprintf(buf,sizeof(buf),"name%d",i);
		770	setvar(buf,user_variable[i].name);
		771	snprintf(buf,sizeof(buf),"value%d",i);
		772	setvar(buf,user_variable[i].value);
		773	}
		774	mystrncpy(buf,int2str(parenth),sizeof(buf));
		775	setvar("bad_parentheses",buf);
		776	user_error("unmatched_parentheses");
10	reyssat	777	}
7673	bpr	778	p=getenv("SCRIPT_NAME");
10	reyssat	779	if(p!=NULL && (p=strstr(p,"/getfile/"))!=NULL) {
7673	bpr	780	p+=strlen("/getfile/");
		781	force_setvar(ro_name[ro_cmd],commands[cmd_getfile]);
		782	force_setvar("special_parm",p);
		783	cmd_defined=1;
10	reyssat	784	}
		785	if(module_defined && !cmd_defined) setvar(ro_name[ro_cmd],commands[cmd_intro]);
		786	robot_check(); cookie2session();
		787	}
		788
7673	bpr	789	/* parse special commands */
10	reyssat	790	void special_cmds(void)
		791	{
		792	char c, p;
		793	int i;
		794	long int l=-1;
7673	bpr	795
10	reyssat	796	c=getvar(ro_name[ro_cmd]);
		797	if(c==NULL \|\| c==0) { / no module name nor command */
7673	bpr	798	setvar(ro_name[ro_module],home_module);
		799	setvar(ro_name[ro_cmd],commands[cmd_new]);
		800	return;
10	reyssat	801	}
		802	for(i=0;i<CMD_NO && strcmp(commands[i],c)!=0; i++);
		803	switch(i) {
7673	bpr	804	case cmd_intro: {
		805	set_module_prefix();
		806	default_form_method="get";
		807	if(ftest(mkfname(NULL,"%s/%s",module_prefix,intro_file))<0) {
		808	force_setvar(ro_name[ro_cmd],commands[cmd_new]);
		809	return;
		810	}
		811	p=getvar("wims_session");
		812	if(p!=NULL && *p!=0) {
		813	if(set_session_prefix()==0) check_session();
		814	else {
		815	trap_check(p);
		816	if(strchr(p,'_')!=NULL && strchr(p,'/')==NULL) {
		817	get_static_session_var();
		818	}
		819	}
		820	}
		821	/* determine http protocol name. How to detect? */
		822	p=getenv("HTTPS"); if(p!=NULL && strcmp(p,"on")==0) {
		823	protocol="https"; set_protocol();
		824	}
		825	force_setvar("wims_protocol",protocol);
		826	determine_font(lang);
		827	determine_dirn(lang);
		828	main_phtml_put(intro_file); debug_output();
		829	introend: write_logs();free(var_str);
		830	delete_pid(); exit(0);
		831	}
		832	case cmd_ref: {
		833	set_module_prefix();
		834	default_form_method="get";
		835	p=getvar("wims_session");
		836	if(p!=NULL && *p!=0) {
		837	if(set_session_prefix()==0) check_session();
		838	else trap_check(p);
		839	}
		840	determine_font(lang);
		841	determine_dirn(lang);
		842	main_phtml_put(ref_file); goto introend;
		843	}
		844	case cmd_getins: {
		845	c=getvar(ro_name[ro_special_parm]);
		846	if(c==NULL \|\| *c==0) {
		847	user_error_nolog=1; user_error("no_insnum");
		848	}
		849	if(*c=='/' \|\| strstr(c,"..")!=NULL) goto badins;
		850	set_session_prefix();
		851	if(strstr(session_prefix,"robot")!=NULL) exit(0);
		852	l=filelength("%s/%s",s2_prefix,c);
		853	if(l<0) {
		854	badins: user_error_nolog=1; user_error("bad_insnum");
		855	}
		856	{
		857	char *fmt;
		858	fmt=strchr(c,'.');
		859	if(fmt==NULL) {
		860	user_error_nolog=1; user_error("bad_insnum");
		861	}
		862	else fmt++;
		863
		864	nph_header(200);
10	reyssat	865	/* insert format problem; bricolage */
7673	bpr	866	printf("Content-type: image/%s\r\n\
10	reyssat	867	Content-length: %ld\r\n\r\n",fmt,l);
7673	bpr	868	catfile(stdout,"%s/%s",s2_prefix,c); exit(0);
		869	}
		870	}
		871	case cmd_getfile: {
		872	char fname[MAX_FNAME+1];
		873	c=getvar(ro_name[ro_special_parm]);
		874	if(c==NULL \|\| *c==0) {
		875	user_error_nolog=1; user_error("no_insnum");
		876	}
		877	if(*c=='/' \|\| strstr(c,"..")!=NULL) goto badfile;
		878
		879	set_session_prefix();
		880	if(strstr(session_prefix,"robot")!=NULL) exit(0);
		881	mkfname(fname,"%s/getfile/%s",session_prefix,c);
		882	l=filelength("%s",fname);
		883	if(l<0 && strchr(session_prefix,'_')!=NULL) {
		884	char *pt;
		885	mystrncpy(fname,session_prefix,sizeof(fname));
		886	pt=strrchr(fname,'_'); if(pt) *pt=0;
		887	snprintf(fname+(pt-fname),sizeof(fname)-(pt-fname),
		888	"/getfile/%s",c);
		889	l=filelength("%s",fname);
		890	}
		891	if(l<0) {
		892	badfile: user_error_nolog=1; user_error("bad_insnum");
		893	}
		894	if(l>512*1024) {
		895	struct rlimit rlim;
		896	rlimit_cpu=l/(101024);
		897	rlim.rlim_cur=rlim.rlim_max=rlimit_cpu;
		898	initalarm();
		899	}
		900	{
		901	char *p1;
		902	char mime[MAX_LINELEN+1];
		903	for(p1=c+strlen(c);p1>c && isalpha(*(p1-1)); p1--);
		904	ovlstrcpy(mime,"application/octet-stream");
		905	if(p1>c && *(p1-1)=='.') {
		906	setvar("translator_unknown",mime);
		907	setvar("dictionary","bases/sys/mime");
		908	snprintf(mime,sizeof(mime),"translator %s",p1);
		909	calc_exec(mime);
		910	}
		911	nph_header(200);
		912	printf("Content-type: %s\r\n\
10	reyssat	913	Content-length: %ld\r\n\r\n",mime,l);
7673	bpr	914	catfile(stdout,"%s",fname); exit(0);
		915	}
		916	}
		917	case cmd_close: {
		918	char *p, b2[32]; int w;
		919	char nbuf[MAX_FNAME+1], vbuf[MAX_LINELEN+1];
		920	p=getvar(ro_name[ro_session]);
		921	if(p==NULL \|\| strlen(p)<10 \|\|
		922	strchr(p,'/')!=NULL) return;
		923	mystrncpy(b2,p,sizeof(b2));
		924	p=strchr(b2,'.'); if(p!=NULL) *p=0;
		925	mkfname(nbuf,"%s/%s/var.stat",session_dir,b2);
		926	getdef(nbuf,"wims_caller",vbuf);
		927	if(vbuf[0]!=0) force_setvar(ro_name[ro_session],vbuf);
		928	w=wrapexec; wrapexec=1;
		929	call_sh("rm -Rf %s/%s* %s/%s* >/dev/null 2>&1",session_dir,b2,s2_dir,b2);
		930	wrapexec=w; cookiegot[0]=0;
		931	force_setvar(ro_name[ro_cmd],"new");
		932	}
		933	default: return;
10	reyssat	934	}
		935	}
		936
7673	bpr	937	/* This is run only when manually invoking the program.
8155	bpr	938	* Verifies the orderedness of various list tables.
		939	*/
10	reyssat	940	int verify_tables(void)
		941	{
		942	if(verify_order(calc_routine,CALC_FN_NO,sizeof(calc_routine[0]))) return -1;
		943	if(verify_order(exec_routine,EXEC_FN_NO,sizeof(exec_routine[0]))) return -1;
		944	if(verify_order(main_config,MAIN_CONFIG_NO,sizeof(main_config[0]))) return -1;
		945	if(verify_order(mathname,mathname_no,sizeof(mathname[0]))) return -1;
		946	if(verify_order(hmname,hmname_no,sizeof(hmname[0]))) return -1;
		947	if(verify_order(ro_name,RO_NAME_NO,sizeof(ro_name[0]))) return -1;
		948	if(verify_order(distr_cmd,distr_cmd_no,sizeof(distr_cmd[0]))) return -1;
		949	if(verify_order(internal_name,INTERNAL_NAME_NO,
7673	bpr	950	sizeof(internal_name[0]))) return -1;
10	reyssat	951	if(verify_order(tmathfn,tmathfn_no,sizeof(tmathfn[0]))) return -1;
		952	if(verify_order(tmathvar,tmathvar_no,sizeof(tmathvar[0]))) return -1;
		953	if(verify_order(modindex,MODINDEX_NO,sizeof(modindex[0]))) return -1;
		954	if(verify_order(exportvars,exportvarcnt,sizeof(exportvars[0]))) return -1;
		955	if(evaltab_verify()) return -1;
		956	if(textab_verify()) return -1;
		957	return 0;
		958	}
		959
		960	void config_defaults(void)
		961	{
3857	kbelabas	962	int i;
10	reyssat	963	for(i=0;i<MAIN_CONFIG_NO;i++) {
7673	bpr	964	if((1&main_config[i].is_integer)==1) {
		965	int pi = (int)main_config[i].address;
		966	printf("DF_%s=%d\n",main_config[i].name, *pi);
3857	kbelabas	967	}
7673	bpr	968	else {
3857	kbelabas	969	char ps = (char)main_config[i].address;
7673	bpr	970	printf("DF_%s=%s\n",main_config[i].name,*ps);
3857	kbelabas	971	}
10	reyssat	972	}
		973	}
		974
7673	bpr	975	/* get and set useroptions */
10	reyssat	976	void useropts(void)
		977	{
		978	char *p;
		979	setvar("lang",lang);
		980	p=getvar("useropts");
		981	if(p==NULL \|\| *p==0) p=getvar("wims_useropts");
		982	if(p!=NULL && *p!=0) {
6178	bpr	983	if(myisdigit(p[0])) {
		984	usertexsize=p[0]-'0';
6184	bpr	985	/* fourth digit is for special fonts*/
6178	bpr	986	if(p[1]!=0) { mathalign_base=p[1]-'0'; }
		987	}
6184	bpr	988	if(myisdigit(p[3]) && p[3]!=0){ spec_font=p[3]-'0';}
		989	}
		990	if(mathalign_base==1) {
6178	bpr	991	mathalign_sup1="<sup>"; mathalign_sup2="</sup>";
6184	bpr	992	} else mathalign_sup1=mathalign_sup2="";
10	reyssat	993	}
		994
7673	bpr	995	/* popup module help */
10	reyssat	996	void mhelp(void)
		997	{
		998	char *p, buf[MAX_LINELEN+1];
		999	main_phtml_put(""); buf[0]=0;
		1000	if(cmd_type!=cmd_help) {
7673	bpr	1001	phtml_put_base("closemhelp.phtml",0);
10	reyssat	1002	}
		1003	else {
7673	bpr	1004	phtml_put_base("mhelpheader.phtml",0);
		1005	p=getvar("special_parm");
		1006	if(p!=NULL && strcmp(p,"about")==0)
		1007	phtml_put("about.phtml",0);
11125	georgesk	1008	else phtml_put("help.phtml",0);
		1009	phtml_put_base("mhelptail.phtml",0);
7673	bpr	1010	exec_tail(buf);
10	reyssat	1011	}
		1012	}
		1013
		1014	#define READSTDIN_WINDOW 4096
		1015
		1016	void readstdin(int len)
		1017	{
		1018	int ll, l1, lt, lr;
		1019	int cpulim;
7673	bpr	1020
10	reyssat	1021	cpulim=rlimit_cpu; rlimit_cpu=3;
		1022	lr=len; l1=0;
		1023	while(lr>0) {
7673	bpr	1024	nowtime=time(0); initalarm();
		1025	ll=lr; if(ll>READSTDIN_WINDOW) ll=READSTDIN_WINDOW;
		1026	lt=fread(stdinbuf+l1,1,ll,stdin);
		1027	if(lt!=ll) user_error("parm_too_long");
		1028	lr-=ll; l1+=ll;
10	reyssat	1029	}
		1030	if(l1!=len) user_error("parm_too_long");
		1031	stdinbuf[len]=0; rlimit_cpu=cpulim;
		1032	}
		1033
7673	bpr	1034	/* input: p=QUERY_STRING. output: parameter length. */
		1035	/* Netscape puts form content into /tmp. */
10	reyssat	1036	int formdata(char *p)
		1037	{
		1038	char *pp;
		1039	int inlen;
		1040	char *ctype;
		1041	inlen=0; ctype=getenv("CONTENT_TYPE");
		1042	if(ctype==NULL \|\| strstr(ctype,"multipart/form-data")==NULL
		1043	\|\| (p=strstr(ctype,"boundary="))==NULL) {
7673	bpr	1044	bad: stdinbuf=""; return 0;
10	reyssat	1045	}
		1046	pp=getenv("CONTENT_LENGTH");
		1047	if(pp==NULL) goto bad;
		1048	inlen=atoi(pp); if(inlen<=10) goto bad;
		1049	if(inlen>=MAX_DEPOSITLEN) user_error("parm_too_long");
		1050	stdinbuf=xmalloc(inlen+1); readstdin(inlen);
		1051	p+=strlen("boundary=");
		1052	for(pp=p;myisalnum(pp) \|\| pp=='-'; pp++);
		1053	if(pp-p<sizeof(mpboundary)-2) {
7673	bpr	1054	memmove(mpboundary,p,pp-p); mpboundary[pp-p]=0;
10	reyssat	1055	}
7673	bpr	1056	/* empty data */
10	reyssat	1057	if(strstr(stdinbuf,mpboundary)==NULL \|\| strstr(stdinbuf,"name=")==NULL) {
7673	bpr	1058	free(stdinbuf); goto bad;
10	reyssat	1059	}
		1060	form_access=1; post_log();
		1061	return inlen;
		1062	}
		1063
7673	bpr	1064	/* get the content of POST */
10	reyssat	1065	void getpost(void)
		1066	{
		1067	int ll;
		1068	char *pp;
		1069	pp=getenv("CONTENT_LENGTH");
		1070	if(pp==NULL \|\| (ll=atoi(pp))<=0) {
7673	bpr	1071	stdinbuf=xmalloc(16); stdinbuf[0]=0;
10	reyssat	1072	}
		1073	else {
7673	bpr	1074	if(ll>QUERY_STRING_LIMIT) user_error("parm_too_long");
		1075	stdinbuf=xmalloc(ll+16); readstdin(ll);
		1076	if(ll>0) {
		1077	setenv("QUERY_STRING",stdinbuf,1);
		1078	form_access=1; post_log();
		1079	}
10	reyssat	1080	}
		1081	}
		1082
		1083	void buffer_init(void)
		1084	{
		1085	struct timeval tv;
7673	bpr	1086
10	reyssat	1087	mcachecnt=readnest=0;
		1088	mpboundary[0]=cookiegot[0]=cookieset[0]=cwdbuf[0]=0;
		1089	rscore_class[0]=rscore_user[0]=multiexec_random[0]=0;
		1090	lastftest[0]=0;
		1091	lastdatafile[0]=0; lastdata=xmalloc(WORKFILE_LIMIT);
		1092	outptr=outbuf;
		1093	instex_src[0]=instex_fname[0]=module_prefix[0]=0;
		1094	examlogf[0]=examlogd[0]=exam_sheetexo[0]=0;
		1095	stdinbuf=NULL;
		1096	mkfname(tmp_dir,"../tmp/forall");
		1097	mkfname(session_dir,"../%s",SESSION_BASE);
		1098	mkfname(s2_dir,"../%s",S2_BASE);
		1099	if(gettimeofday(&tv,NULL)) startmtime=startmtime2=0;
		1100	else {
7673	bpr	1101	startmtime=((tv.tv_sec%10000)*1000+tv.tv_usec/1000);
		1102	startmtime2=(tv.tv_sec%1000)*1000000+tv.tv_usec;
10	reyssat	1103	}
		1104	}
		1105
8216	bpr	1106	/**
		1107	* runs the test suite, to check whether the documented commands of modtool
		1108	* behave properly.
		1109	* @param prefix path to the proc file to process
		1110	* @param p name of the proc file to proceed
		1111	* @param vars a list of var names to print.
		1112	**/
		1113	void test_suite(char prefix, char p, char *vars){
		1114	char v, nextv;
		1115	mystrncpy(module_prefix, prefix, sizeof(module_prefix));
		1116	exec_read(p);
		1117	nextv=vars;
		1118	while (*nextv!='\0'){
		1119	v=find_word_start(nextv);
		1120	nextv=find_word_end(v);
		1121	if (*nextv != '\0'){
		1122	*nextv++='\0';
		1123	}
8925	bpr	1124	v=getvar(v);
		1125	if(v) puts(v); else putchar('\n');
8216	bpr	1126	}
		1127	}
		1128
10	reyssat	1129	int main(int argc, char argv[], char envp[])
		1130	{
		1131	char *p, homebuf[MAX_FNAME+1], lbuf[32];
		1132	int inlen=0;
8155	bpr	1133	/* int mfd; */
8195	bpr	1134
10	reyssat	1135	class_dir[0]=0;
		1136	substitute=substit; buffer_init(); var_init();
7673	bpr	1137	/* WIMS internal locale is always C. */
10	reyssat	1138	setenv("LANG","C",1); umask(022);
		1139	setenv("LANGUAGE","us",1);
		1140	setenv("LC_ALL","C",1);
		1141	if(argc>1) {
7673	bpr	1142	if(strcasecmp(argv[1],"table")==0) {
		1143	if(verify_tables()) internal_error("Table disorder.");
		1144	else printf("Table orders OK.\n");
		1145	return 0;
		1146	}
		1147	if(strcasecmp(argv[1],"version")==0) {
		1148	printf("%s",wims_version); return 0;
		1149	}
		1150	if(strcasecmp(argv[1],"defaults")==0) {
		1151	config_defaults(); return 0;
		1152	}
8216	bpr	1153	if(strcasecmp(argv[1],"test")==0) {
8851	bpr	1154	/* launches a test suite */
		1155	if (argc < 5) {
		1156	printf("Not enough arguments to launch a test; usage:\n");
		1157	printf("wims test path_to_file name_of_proc_file 'var1 var2 ...'\n\n");
		1158	printf("the file at path_to_file/name_of_proc_file will be evaluated by wims for\nexec commands, then the values of var1, var2, ... will be printed\nin the standard output, one per line.\n");
		1159	return 1;
		1160	}
		1161	test_suite(argv[2], argv[3], argv[4]);
		1162	return 0;
		1163	}
10	reyssat	1164	}
		1165	p=getenv("SERVER_SOFTWARE"); if(p!=NULL && strcasecmp(p,"WIMS")==0)
		1166	httpd_type=httpd_wims;
		1167	p=getenv("REMOTE_ADDR"); if(p!=NULL) remote_addr=p;
		1168	p=getenv("REMOTE_HOST"); if(p!=NULL) remote_host=p;
		1169	nowtime=time(0); now=localtime(&nowtime);
9286	bpr	1170	/* nowtime contains the seconds elapsed from EPOCH (1970)
		1171	but tm_year is set to current year-1900.
		1172	*/
10	reyssat	1173	memmove(&Now, now, sizeof(Now)); now=&Now;
		1174	snprintf(nowstr,sizeof(nowstr),"%04d%02d%02d.%02d:%02d:%02d",
7673	bpr	1175	(now->tm_year)+1900,(now->tm_mon)+1,now->tm_mday,
		1176	now->tm_hour,now->tm_min,now->tm_sec);
10	reyssat	1177	p=getenv("QUERY_STRING");
		1178	if(p==NULL \|\| *p==0) getpost();
		1179	else if(strncmp(p,"form-data",9)==0) inlen=formdata(p);
7673	bpr	1180
10	reyssat	1181	force_setvar("wims_now",nowstr);
		1182	snprintf(lbuf,sizeof(lbuf),"%lu",nowtime);
		1183	force_setvar("wims_nowseconds",lbuf);
		1184	nowtime=time(0);
		1185	initalarm();
7673	bpr	1186
10	reyssat	1187	executed_gotos=insert_no=output_length=0; ins_alt[0]=0;
7673	bpr	1188	setvar("empty",""); /* lock this variable */
10	reyssat	1189	setvar("wims_version",wims_version);
		1190	setvar("wims_version_date",wims_version_date);
		1191	setvar("wims_main_font","utf-8");
		1192	take_httpd_vars();
		1193
		1194	main_configure();
		1195	checklogd();
8155	bpr	1196	/* mfd=shm_open(SHM_NAME,O_RDONLY,-1);
		1197	* if(mfd==-1) internal_error("Unable to find shared memory.");
		1198	* shmptr=mmap(0,SHM_SIZE,PROT_READ,MAP_SHARED,mfd,0);
		1199	* if(shmptr==MAP_FAILED) internal_error("Shared memory failure.");
		1200	*/
7673	bpr	1201	getppid(); /* this is the first sysmask trigger, must be after checklogd() */
10	reyssat	1202	predetermine_language();
6784	kbelabas	1203	/* modify a few rlimits for 64-bit processors */
		1204	if (sizeof(long) == 8) {
		1205	rlimit_as=2; / virtual memory size */
		1206	rlimit_data=2; / data segment size; maxima requires a lot */
		1207	rlimit_stack=2; / stack size */
		1208	}
10	reyssat	1209	set_rlimits();
		1210	init_random();
		1211	module_configure();
		1212	set_job_ident();
		1213	m_file.name[0]=0;m_file.linecnt=m_file.linepointer=0;
		1214	p=getenv("QUERY_STRING");
		1215	if(p==NULL \|\| strlen(p)==0) {
7673	bpr	1216	setvar("lang",lang);
		1217	snprintf(homebuf,sizeof(homebuf),"module=%s",home_module);
		1218	p=homebuf;
10	reyssat	1219	}
		1220	if(strlen(p)>=QUERY_STRING_LIMIT) user_error("parm_too_long");
		1221	if(mpboundary[0]==0) {
7673	bpr	1222	var_str=xmalloc(strlen(p)+2);
		1223	parse_query_string(http2env(var_str,p),0);
10	reyssat	1224	}
		1225	else {
7673	bpr	1226	var_str=stdinbuf;
		1227	parse_query_string(inlen,1);
10	reyssat	1228	}
		1229	if(ismhelp) {
7673	bpr	1230	p=getvar(ro_name[ro_cmd]);
		1231	if(p==NULL \|\| (strcmp(p,"help")!=0 && strcmp(p,"getins")!=0)) {
		1232	mhelp(); goto outgo;
		1233	}
10	reyssat	1234	}
		1235	check_exam();
		1236	useropts();
		1237	special_cmds();
		1238	parse_ro_names();
		1239	manager_check();
		1240	access_check(0);
11132	bpr	1241	/* it is really for developing in wims, so no use in general */
11104	bpr	1242	if (1==1) {
10051	bpr	1243	if(strstr(tmp_debug,"yes")!=NULL && checkhost(manager_site)>=1)
		1244	trace_file = fopen(mkfname(NULL,"%s/%s",tmp_dir,"trace.txt"),"a");
10129	bpr	1245	}
10	reyssat	1246	set_variables();
		1247	determine_font(getvar("module_language"));
3278	reyssat	1248	determine_dirn(getvar("module_language"));
10	reyssat	1249	if(!robot_access && session_prefix[0]!=0 && cmd_type!=cmd_help && !ismhelp)
		1250	lastout_file=creat(mkfname(NULL,"%s/%s",s2_prefix,lastout),
7673	bpr	1251	S_IRUSR\|S_IWUSR);
10	reyssat	1252	p=getvar("module_category");
		1253	if(p==NULL \|\| strstr(p,"tool")==NULL) default_form_method="get";
		1254	if(noout) {
7673	bpr	1255	write_logs(); save_session_vars();
		1256	goto outgo;
10	reyssat	1257	}
		1258	if(ismhelp) {
7673	bpr	1259	mhelp();
10	reyssat	1260	}
		1261	else {
7673	bpr	1262	main_phtml_put(html_file);
		1263	if(lastout_file!=-1) {
		1264	flushoutput(); close(lastout_file); putlastout();
		1265	}
		1266	write_logs(); save_session_vars();
10	reyssat	1267	}
		1268	outgo:
		1269	debug_output();
10291	bpr	1270	if (trace_file) { fclose(trace_file); trace_file=NULL; }
10	reyssat	1271	if(var_str!=stdinbuf) free(var_str);
		1272	delete_pid();
		1273	if(mode!=mode_popup && trusted_module()) {
7673	bpr	1274	p=getvar("wims_mode");
		1275	if(p!=NULL && strcmp(p,"popup")==0) mode=mode_popup;
10	reyssat	1276	}
		1277	if(mode==mode_popup && insert_no==0) {
7673	bpr	1278	p=getvar("wims_mode");
		1279	if(p!=NULL && strcmp(p,"popup")==0) {
		1280	remove_tree(session_prefix);
		1281
		1282	remove_tree(s2_prefix);
		1283	}
10	reyssat	1284	}
		1285	return 0;
		1286	}

Subversion Repositories wimsdev

(root)/trunk/wims/src/wims.c – Rev 11132