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

Subversion Repositories wimsdev

(root)/trunk/wims/src/wims.c – Rev 10291