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"
14873	georgesk	21	enum Name_Modes NAME_MODES;
		22	enum Ro_Names RO_NAMES;
		23	enum _commands COMMANDS;
		24	WORKING_FILE m_file, svar_file, mcache[MAX_MCACHE];
		25	struct VAR_DEF var_def[MAX_VAR_NUM];
		26	char examlogf[MAX_FNAME+1];
		27	char mpboundary[1024];
		28	char *stdinbuf;
		29	struct user_variable user_variable[MAX_VAR_NUM];
		30	char available_lang[MAX_LANGUAGES][4];
8178	bpr	31
8121	bpr	32	struct {
12263	bpr	33	char *name;
		34	char *font;
8121	bpr	35	} charname[]={
12263	bpr	36	{"en","windows-1252"},
		37	{"fr","windows-1252"},
		38	{"es","windows-1252"},
		39	{"cn","gb2312"},
		40	{"de","windows-1252"},
		41	{"it","windows-1252"},
		42	{"nl","windows-1252"},
		43	{"si","iso-8859-2"},
		44	{"ar","iso-8859-6"},
		45	{"tw","big5"},
		46	{"pt","windows-1252"},
		47	{"ca","windows-1252"},
		48	{"pt","windows-1252"},
		49	{"ru","iso-8859-5"},
		50	{"ty","iso-8859-13"}
8121	bpr	51	};
		52
		53	#define charname_no (sizeof(charname)/sizeof(charname[0]))
		54
8155	bpr	55	/* left to right or right to left writing */
8121	bpr	56	struct {
12263	bpr	57	char *name;
		58	char *dirn;
8121	bpr	59	} dirnname[]={
12263	bpr	60	{"en","ltr"},
		61	{"fr","ltr"},
		62	{"es","ltr"},
		63	{"cn","ltr"},
		64	{"de","ltr"},
		65	{"it","ltr"},
		66	{"nl","ltr"},
		67	{"si","ltr"},
		68	{"ar","rtl"},
		69	{"tw","ltr"},
		70	{"pt","ltr"},
		71	{"ca","ltr"},
		72	{"pt","ltr"},
		73	{"ru","ltr"},
		74	{"ty","ltr"}
8121	bpr	75
		76	};
		77
		78	#define dirnname_no (sizeof(dirnname)/sizeof(dirnname[0]))
		79
		80
10	reyssat	81	#define evalue strevalue
		82	char *robot_session="../tmp/robot";
		83	int robot_access=0,human_access=0;
		84	int user_error_nolog=0;
		85	char *good_agent[]={
12263	bpr	86	"Mozilla","Netscape","Opera","WIMS",
		87	"MSIE","Konqueror","Java"
10	reyssat	88	};
		89	#define good_agent_no (sizeof(good_agent)/sizeof(good_agent[0]))
		90
		91	char bad_agent[]={ / These are really bad agents: prohibited. */
12263	bpr	92	"HTTrack","MemoWeb","Teleport","Offline","Wget","eCatch",
		93	"Powermarks","EmailSiphon", "WebCopier"
10	reyssat	94	};
		95	#define bad_agent_no (sizeof(bad_agent)/sizeof(bad_agent[0]))
		96
		97	/* used for debugging */
		98	int debug=0;
		99
		100	char class_dir[MAX_FNAME+1]; /* directory name of this class */
		101
8185	bpr	102	struct user_variable user_variable[MAX_VAR_NUM];
10	reyssat	103	int user_var_no;
		104
8185	bpr	105	struct VAR_DEF var_def[MAX_VAR_NUM];
10	reyssat	106	int defined_var_total;
		107
7673	bpr	108	/* Destinated to module error messages */
10	reyssat	109	WORKING_FILE m_file,svar_file,mcache[MAX_MCACHE];
		110	int mcachecnt;
		111
7673	bpr	112	/* Limit for any data working files. */
10	reyssat	113	int WORKFILE_LIMIT=2048*1024;
		114
7673	bpr	115	/* whether the user has defined language */
10	reyssat	116	int user_lang=0;
		117
7673	bpr	118	/* for instex grouping */
10	reyssat	119	int instex_cnt=0, getwimstexsize=1;
		120	char instex_src[MAX_LINELEN+1], instex_fname[MAX_LINELEN+1];
		121	char *instex_processor="tex..gif";
		122
7673	bpr	123	/* Cookie management */
10	reyssat	124	char cookiegot[256], cookieset[256], cookieheader[64]="WIMSUSER=";
		125
7673	bpr	126	/* multipart boundary */
10	reyssat	127	char mpboundary[1024];
		128	int deplen=0; /* length of deposit */
		129
		130	int confset=0; /* set to 1 if setvar for config */
		131
7673	bpr	132	/* Operating mode: default, popup, raw, etc. */
8185	bpr	133
10	reyssat	134	int mode=mode_default;
		135
7673	bpr	136	/* Switch; notice subroutines wherether we are outputing. */
10	reyssat	137	int outputing;
		138
		139	char home_module="home"; / name of home module */
7673	bpr	140	extern char *environ; / table of environment variables */
10	reyssat	141	int module_defined=0;
		142
		143	/* directory prefix buffers */
		144	char session_prefix[MAX_FNAME+1], s2_prefix[MAX_FNAME+1], module_prefix[MAX_FNAME+1];
		145
		146	char *stdinbuf;
7673	bpr	147	int sesrandomtab[MAX_SESRANDOM]; /* session random values */
10	reyssat	148	char multiexec_random[64];
		149	int executed_gotos; /* number of goto's executed. to check with GOTO_LIMIT. */
		150	int insert_no; /* number of instex, insplot, insPLOT. */
		151	int output_length; /* length of the output. */
7673	bpr	152	int isexam=0; /* non-zero if request is exam */
		153	int simuxam=0; /* exam is simulation */
		154	int is_multiexec=0; /* for execredirected */
10	reyssat	155	int multiexec_index;
		156	int direct_datafile=0;
		157	int exec_is_module=0;
		158	/* root directory of modules */
		159	char *module_dir="modules";
		160	int new_session=0; /* =1 if new session created */
7673	bpr	161	int good_httpd=0; /* Whether the http server is intelligent */
10	reyssat	162	/* int internal_sql=0; / / for internal sql use */
		163	int direct_exec=0; /* calc routine is exected by exec if 1 */
		164	int print_precision=8; /* precision when printing real numbers */
		165	int session_serial; /* request serial for session control */
7673	bpr	166	int form_access=0; /* identifies form access, for robot identification */
		167	int lastout_file=-1; /* file to hold last output */
		168	char instex_style=""; / "": text "$": math "$$": displaymath */
		169	int instex_usedynamic=0; /* always dynamic if 1 */
		170	int wrapexec=0; /* if set to 1, change uid (nobody) to euid (wims).
		171	* if set to -1, change euid to uid when exec(). */
		172	int parm_restore=0; /* Restoring saved parameters? */
		173	int exec_wait=1; /* whether to wait for fork return */
		174	int execnt=0; /* count executions */
		175	int readnest; /* nested read count */
		176	int mfilecnt=0; /* count working files */
		177	int forceresume=0; /* force user to resume old request */
		178	int manageable=0; /* whether the connection may be site manager
		179	* 0: no; 1: maybe; 2: sure */
		180	int ismhelp=0; /* 1 if session is in mhelp. */
		181	int getvar_len; /* length of the last-got variable. */
		182	int noout=0; /* if set to 1 then output is skipped */
		183	char tmp_dir[MAX_FNAME+1]; /* temporary directory */
		184	char bin_dir="bin"; / directory containing executable scripts and programs. */
		185	char cwdbuf[MAX_FNAME+1]; /* store current working directory */
		186	char var_hacking=0; /* Trying to hack a variable? */
10	reyssat	187	char *tmp_debug="no";
11104	bpr	188	char *tmp_debug_var="";
15573	bpr	189	char *tmp_debug_use_var="";
7673	bpr	190	char ins_alt[MAX_LINELEN+1]; /* dynamic insertion alternative text */
		191	char devel_modules="close"; / whether to open devel modules */
		192	int isclassmodule=0; /* 1 if the module is class module */
		193	int isdevelmodule=0; /* development module? */
		194	int setcookie=0; /* 1 if need to set cookie */
		195	int killpid=0; /* pid of process to kill by alarm */
		196	char mathalign_sup1, mathalign_sup2; /* see mathalign_base */
		197	int substnest=0; /* nesting level of substit() */
10	reyssat	198	int exodepOK=1;
7673	bpr	199	long int startmtime; /* start time in milliseconds */
		200	long int startmtime2; /* start time in microseconds */
		201	int backslash_insmath=0; /* \(...) substitution? */
		202	char examlogf[MAX_FNAME+1]; /* examlog file name */
		203	char examlogd[MAX_FNAME+1]; /* examlog file name */
		204	char exam_sheetexo[32]; /* sheet data of an exam */
10	reyssat	205	char loadavg[64];
7673	bpr	206	/* user file variable access control. */
10	reyssat	207	char var_readable, var_writable, var_nr, var_nw, *var_pfx;
		208	int hostcquota;
7673	bpr	209	int var_noexport; /* do not export variable */
10	reyssat	210
7673	bpr	211	char tmplbuf[MAX_LINELEN+1]; /* for temporary uses not thru subroutines. */
10	reyssat	212
7673	bpr	213	struct tm now, Now; / time of request */
10	reyssat	214	time_t nowtime, limtime, limtimex;
		215	char nowstr[32];
		216
7673	bpr	217	/* Resource limits. Capital names are reserved by system. */
		218	int rlimit_cpu=20; /* cpu time in seconds */
10	reyssat	219	int rlimit_fsize=8388608;/* file size */
5222	guerimand	220	int rlimit_as=614457600;/* virtual memory size */
14048	guerimand	221	int rlimit_data=2004857600;/* data segment size; maxima requires a lot (must be lower than rlimit_as)*/
10	reyssat	222	int rlimit_stack=2097152;/* stack size */
7673	bpr	223	int rlimit_core=0; /* core dump size */
		224	int rlimit_rss=16777216; /* resident size */
		225	int rlimit_nproc=1024; /* number of processes */
		226	int rlimit_nofile=512; /* number of open files */
10	reyssat	227	int rlimit_memlock=2097152;/* locked-in-memory address space */
		228
		229	char var_str; / malloc'ed buffer to hold translated query_string */
		230
7673	bpr	231	/* buffer to hold module's variable definition file, malloc'ed. */
10	reyssat	232	char *var_def_buf;
		233
8185	bpr	234	/* job_identifier is even a reserved variable name */
10	reyssat	235	char job_identifier[32];
		236
8185	bpr	237	/* site manager definition IPv4 IPv6*/
4648	bpr	238	char *manager_site="127.0.0.1 ::1";
10	reyssat	239	int manager_https=0;
		240
8185	bpr	241	/* sheet and exercise information */
10	reyssat	242	int wims_sheet=0,wims_exo=0;
		243
8185	bpr	244	/* Form method: get or post */
10	reyssat	245	char *default_form_method="post";
		246
8185	bpr	247	/* Je suis maintenant oblige de passer a l'anglais
		248	* pour la langue de defaut.
		249	*/
10	reyssat	250	char lang[16]="en";
		251	char available_lang[MAX_LANGUAGES][4]={"en","fr"};
		252	int available_lang_no=2;
		253	char pre_language[4]="";
10051	bpr	254	FILE *trace_file;
11104	bpr	255	int trace_indent=0;
10	reyssat	256	char protocol="http"; / http or https */
		257
8185	bpr	258	/* check for coordinate input. This will mean that
		259	* the request is manual, but not robot.
		260	*/
10	reyssat	261	int coord_input=0;
		262
8155	bpr	263	/* These are readonly environment variable names
		264	* special parm used for special cmds (getins, etc).
		265	*/
10	reyssat	266	char *ro_name[]={
12271	bpr	267	"cmd",
12263	bpr	268	"empty",
12271	bpr	269	"lang",
		270	"module",
		271	"session",
12263	bpr	272	"special_parm",
		273	"special_parm2",
		274	"special_parm3",
		275	"special_parm4",
		276	"useropts" ,
		277	"wims_session",
		278	"wims_subsession",
		279	"wims_window",
		280	"worksheet"
10	reyssat	281	};
		282
8185	bpr	283	int RO_NAME_NO=(sizeof(ro_name)/sizeof(ro_name[0]));
		284
10	reyssat	285	int cmd_type;
		286	char *commands[]={
		287	"intro" , "new" , "renew" , "reply" , "config" , "hint" , "help" ,
		288	"resume", "next", "getins", "getframe", "getfile", "close", "ref"
		289	};
		290
8185	bpr	291	int CMD_NO=(sizeof(commands)/sizeof(commands[0]));
		292
8155	bpr	293	/* stat=0: saved variables
		294	* all names starting with wims_priv_ are also internal.
		295	*/
8185	bpr	296	struct internal_name internal_name[]={
12263	bpr	297	{"accessright", 1}, /* right to access commercial resources */
		298	{"caller", 1}, /* caller session */
		299	{"check", 1}, /* for exam check use */
		300	{"class", 1},
		301	{"class_examlog", 1},
		302	{"class_exolog", 1},
		303	{"class_limit", 1},
		304	{"class_quota", 1},
		305	{"class_regpass", 1},
		306	{"class_user_limit", 1},
		307	{"classdir", 1},
		308	{"classname", 1},
		309	{"devel_modules", 1},
		310	{"developer", 1},
		311	{"doc_quota", 1},
		312	{"doc_regpass", 1},
		313	{"email", 1},
		314	{"exo", 0}, /* exercise number */
		315	{"exoption", 1}, /* exercise option */
12381	bpr	316	{"exotrymax", 0},
12263	bpr	317	{"firstname", 1},
		318	{"forum_limit", 1},
		319	{"home", 1},
		320	{"institutionname", 1},
		321	{"isexam", 0}, /* whether the sheet is an exam sheet */
		322	{"ismanager", 0},
		323	{"lastname", 1},
		324	{"mode", 0}, /* operating mode */
		325	{"module_start_time", 0},
		326	{"now", 1}, /* date and time, yyyymmdd.hh:mm:ss */
		327	{"nowseconds", 1}, /* date and time, seconds since EPOCH */
		328	{"nr", 1}, /* non-readable variables in user file, words */
		329	{"nw", 1}, /* non-writable variables in user file, words */
		330	{"otherclass", 1}, /* Remember other logins */
		331	{"participate", 1}, /* superclass definition */
		332	{"prefix", 1}, /* user file prefix */
		333	{"protocol", 0}, /* http protocol */
		334	{"rafale", 0}, /* rapidfire request information */
		335	{"readable", 1}, /* readable variables in user file, words */
		336	{"realuser", 1}, /* real user for supervisor in gateway */
		337	{"req_time", 0}, /* time of the request */
		338	{"sclassdir", 1},
		339	{"scorereg", 0}, /* score registration flag */
		340	{"seed", 0},
		341	{"seed_repeat",0},
		342	{"seed_score", 0},
12363	bpr	343	{"seedcnt",0},
		344	{"seedlastcnt",0},
12263	bpr	345	{"sequence", 0}, /* sequence number */
		346	{"sescookie", 1}, /* session cookie */
		347	{"sesdir", 1},
		348	{"session_serial", 0}, /* request serial in the session */
		349	{"session_start_time", 0},
		350	{"sheet", 0}, /* sheet number */
		351	{"sup_secure", 1}, /* secure level of supervisor */
		352	{"superclass", 1}, /* superclass code */
		353	{"superclass_quota", 1},
		354	{"supertype", 1}, /* superclass type */
		355	{"supervise", 1}, /* superclass definition */
		356	{"supervisor", 1}, /* real name of the supervisor */
		357	{"supervisormail",1}, /* email of supervisor */
		358	{"trustfile", 1}, /* trusted files in special adm modules */
		359	{"useropts", 1}, /* user options */
		360	{"writable", 1}, /* writable variables in user file, words */
10	reyssat	361	};
8185	bpr	362	int INTERNAL_NAME_NO=(sizeof(internal_name)/sizeof(internal_name[0]));
10	reyssat	363
		364	char *httpd_vars[]={
12263	bpr	365	"HTTP_ACCEPT",
		366	"HTTP_ACCEPT_CHARSET",
		367	"HTTP_ACCEPT_LANGUAGE",
		368	"HTTP_COOKIE",
		369	"HTTP_HOST",
		370	"HTTP_USER_AGENT",
		371	"HTTP_X_REQUESTED_WITH",
		372	"HTTPS",
		373	"QUERY_STRING",
		374	"REMOTE_HOST",
		375	"REMOTE_ADDR",
		376	"REMOTE_PORT",
		377	"REQUEST_METHOD",
		378	"SCRIPT_NAME",
		379	"SERVER_NAME",
		380	"SERVER_SOFTWARE",
		381	"SERVER_PROTOCOL"
10	reyssat	382	};
		383	#define HTTPD_VAR_NO (sizeof(httpd_vars)/sizeof(httpd_vars[0]))
		384
8155	bpr	385	/* security: these variables will not be visible to child processes */
10	reyssat	386	char *unsetvars[]={
12263	bpr	387	"DOCUMENT_ROOT","SERVER_SIGNATURE","SERVER_SOFTWARE",
10	reyssat	388	"UNIQUE_ID","HTTP_KEEP_ALIVE","SSL_SESSION_ID"
		389	};
		390	#define unsetvarcnt (sizeof(unsetvars)/sizeof(unsetvars[0]))
		391
		392	int httpd_type=httpd_apache;
		393
7673	bpr	394	char remote_addr=""; / storing for performance */
10	reyssat	395	char *remote_host="";
		396
		397	char ref_name[2048], ref_base[2048];
		398
		399	void put_special_page(char *pname);
		400	void useropts(void);
		401
7673	bpr	402	/* Make certain httpd variables readable by modules */
10	reyssat	403	void take_httpd_vars(void)
		404	{
12263	bpr	405	int i;
		406	char *p, buf[MAX_NAMELEN+1];
		407	var_noexport=1;
		408	for(i=0;i<HTTPD_VAR_NO;i++) {
		409	snprintf(buf,sizeof(buf),"httpd_%s",httpd_vars[i]);
		410	if((p=getenv(httpd_vars[i]))!=NULL) setvar(buf,p);
		411	}
		412	var_noexport=0;
7673	bpr	413
12263	bpr	414	for(i=0;i<unsetvarcnt;i++) unsetenv(unsetvars[i]);
		415	/* IPv4 IPv6*/
		416	p=getenv("REMOTE_ADDR");if(p!=NULL && (strcmp(p,"127.0.0.1")==0 \|\| strcmp(p,"::1")==0)) human_access=1;
		417	p=getenv("HTTP_REFERER"); if(p!=NULL && *p!=0) setvar("wims_referer",p);
10	reyssat	418	}
		419
11735	obado	420	/* cookie2session */
10	reyssat	421	void cookie2session(void)
		422	{
12263	bpr	423	char cksession[64], psession[32], ckey, p;
		424	char nbuf[MAX_FNAME+1];
10	reyssat	425
12263	bpr	426	if(mode==mode_popup) return;
		427	if(cookiegot[0]==0) {
		428	ckset: cookiegot[0]=0; setcookie=1; return;
		429	}
		430	p=getvar("special_parm");
		431	if(p!=NULL && strcmp(p,"ignorecookie")==0) return;
		432	mystrncpy(cksession,cookiegot,sizeof(cksession));
		433	ckey=strchr(cksession,'-');
		434	if(ckey==NULL) goto ckset; else *ckey++=0;
		435	p=getvar("wims_session"); if(p==NULL) p="";
		436	if(strstr(p,"new")!=NULL) goto ckset;
		437	mystrncpy(psession,p,sizeof(psession));
		438	p=strchr(psession,'_'); if(p!=NULL) *p=0;
		439	if(psession[0]!=0) {
		440	if(strcmp(psession,cksession)==0) return;
		441	if(session_exists(psession)) goto ckset;
		442	if(session_exists(cksession)) goto change;
		443	}
		444	else {
		445	if(!session_exists(cksession)) return;
		446	change:
		447	p=getenv("HTTPS");
		448	if(p!=NULL && strcasecmp(p,"on")==0) goto ckset;
		449	mkfname(nbuf,"%s/%s/var",session_dir,cksession);
		450	getdef(nbuf,"w_wims_ismanager",tmplbuf);
		451	if(tmplbuf[0]!=0 && tmplbuf[0]!='0') goto ckset;
		452	getdef(nbuf,"w_wims_protocol",tmplbuf);
		453	if(strcasecmp(tmplbuf,"https")==0) goto ckset;
		454	mkfname(nbuf,"%s/%s/var.stat",session_dir,cksession);
		455	getdef(nbuf,"wims_user",tmplbuf);
		456	if(tmplbuf[0]!=0) goto ckset;
		457	force_setvar(ro_name[ro_session],cksession);
		458	setsesdir(cksession);
		459	force_setvar("wims_subsession","");
		460	session_serial=0;
		461	}
10	reyssat	462	}
		463
		464	void determine_font(char *l)
		465	{
12263	bpr	466	int i;
7673	bpr	467
12263	bpr	468	if(l==NULL \|\| *l==0) return;
		469	for(i=0;i<charname_no && memcmp(charname[i].name,l,2);i++);
		470	if(i<charname_no) setvar("wims_main_font",charname[i].font);
10	reyssat	471	}
		472
3278	reyssat	473	void determine_dirn(char *l)
		474	{
12263	bpr	475	int i;
7673	bpr	476
12263	bpr	477	if(l==NULL \|\| *l==0) return;
		478	for(i=0;i<dirnname_no && memcmp(dirnname[i].name,l,2);i++);
		479	if(i<dirnname_no) setvar("wims_main_dirn",dirnname[i].dirn);
3278	reyssat	480	}
		481
10	reyssat	482	void predetermine_language(void)
		483	{
12263	bpr	484	char *p;
		485	int i,n;
10	reyssat	486
12263	bpr	487	if(pre_language[0]!=0) p=pre_language;
		488	else p=getenv("HTTP_ACCEPT_LANGUAGE");
		489	if(p!=NULL && strlen(p)>=2) {
10	reyssat	490	for(i=0;i<available_lang_no && memcmp(p,available_lang[i],2)!=0;i++);
12263	bpr	491	if(i<available_lang_no) goto lend;
		492	}
		493	p=getenv("HTTP_USER_AGENT");
		494	if(p!=NULL && strlen(p)>=5) {
		495	char *q;
		496	if((q=strchr(p,'['))!=NULL && islower((q+1)) && islower((q+2)) && *(q+3)==']') {
		497	char bb[4];
		498	bb[0]=(q+1);bb[1]=(q+2);bb[2]=0;
		499	for(i=0;i<available_lang_no && memcmp(bb,available_lang[i],2)!=0;i++);
		500	if(i<available_lang_no) {
		501	memmove(lang,bb,2); lang[2]=0;
		502	goto lend2;
		503	}
10	reyssat	504	}
12263	bpr	505	}
		506	p=getenv("HTTP_HOST"); if(p==NULL) goto lend2;
		507	n=strlen(p); if(n<=3 \|\| *(p+n-3)!='.') goto lend2;
		508	p=p+n-2;
		509	for(i=0;i<available_lang_no && memcmp(p,available_lang[i],2)!=0;i++);
		510	if(i<available_lang_no) {
		511	lend: memmove(lang,p,2); lang[2]=0;
		512	lend2: determine_font(lang);determine_dirn(lang);
		513	}
10	reyssat	514	}
		515
7673	bpr	516	/* print a special page */
10	reyssat	517	void put_special_page(char *pname)
		518	{
12263	bpr	519	determine_font(lang);
		520	determine_dirn(lang);
		521	phtml_put_base(mkfname(NULL,"%s.phtml.%s",pname,lang),0);
		522	write_logs();free(var_str);
10	reyssat	523	}
		524
7673	bpr	525	/* check whether the connection is a site manager. */
10	reyssat	526	void manager_check(void)
		527	{
12263	bpr	528	char p, pp, buf[16];
		529	struct stat confstat;
		530	int i;
7673	bpr	531
12263	bpr	532	manageable=0;
		533	if(robot_access \|\| *manager_site==0 \|\| checkhost(manager_site)<1)
		534	goto mend;
		535	if(manager_https) {
		536	p=getenv("HTTPS");
		537	if(p==NULL \|\| strcmp(p,"on")!=0) goto mend;
		538	}
8185	bpr	539	/* IPv4 IPv6*/
12263	bpr	540	if(strcmp(remote_addr,"127.0.0.1")==0 \|\| strcmp(remote_addr,"::1")==0) {
		541	int port, port2;
		542	char tester[128];
		543	p=getenv("REMOTE_PORT"); if(p==NULL) goto mend;
		544	port=atoi(p); if(port<1024 \|\| port>65535) goto mend;
		545	p=getenv("SERVER_PORT"); if(p==NULL) goto mend;
		546	port2=atoi(p); if(port2>=10000 \|\| port2<=0) goto mend;
7673	bpr	547	/* this is very non-portable */
12263	bpr	548	manageable=1;
		549	accessfile(tmplbuf,"r","/proc/net/tcp");
		550	snprintf(tester,sizeof(tester)," 0100007F:%04X 0100007F:%04X ",
		551	port,port2);
		552	p=strstr(tmplbuf,tester);
		553	if(p!=NULL) {
		554	pp=strchr(p,'\n'); if(pp!=NULL) *pp=0;
		555	if(strlen(p)>=75) {
		556	p=find_word_start(p+70); *find_word_end(p)=0;
		557	if(atoi(p)==geteuid()) manageable=2;
7673	bpr	558	}
10	reyssat	559	}
12263	bpr	560	}
		561	else manageable=1;
		562	i=stat(config_file,&confstat);
		563	if(i==0 && manageable>0 && (confstat.st_mode&(S_IRWXO\|S_IRWXG))!=0) manageable=-1;
		564	if(manageable>0 && !trusted_module()) manageable=0;
		565	if(manageable==1) {
		566	accessfile(tmplbuf,"r","%s/.manager",session_prefix);
		567	if(strstr(tmplbuf,"yes")!=NULL) manageable=2;
		568	}
		569	if(manageable==1) {
		570	p=getvar(ro_name[ro_module]);
		571	if(p!=NULL && strncmp(p,"adm/manage",strlen("adm/manage"))==0) {
		572	struct stat pstat;
		573	if(stat("../log/.wimspass",&pstat)==0) {
		574	if((S_IFMT&pstat.st_mode)!=S_IFREG \|\|
		575	((S_IRWXO\|S_IRWXG)&pstat.st_mode)!=0)
		576	manageable=-2;
7673	bpr	577	}
10	reyssat	578	}
12263	bpr	579	}
		580	mend:
		581	mystrncpy(buf,int2str(manageable),sizeof(buf));
		582	force_setvar("wims_ismanager",buf);
		583	if(manageable>=2) {
		584	struct rlimit rlim;
		585	rlimit_cpu*=10;
		586	rlim.rlim_cur=rlim.rlim_max=rlimit_cpu;
		587	setrlimit(RLIMIT_CPU,&rlim);
		588	mystrncpy(buf,int2str(rlimit_cpu),sizeof(buf));
		589	setvar("wims_cpu_limit",buf);
		590	initalarm();
		591	}
10	reyssat	592	}
		593
7673	bpr	594	/* check for robot access */
10	reyssat	595	void robot_check(void)
		596	{
12263	bpr	597	char ua, p, ses, c, *mod;
		598	int i;
10	reyssat	599
12263	bpr	600	if(human_access) return;
		601	mod=getvar(ro_name[ro_module]);
		602	if(mod!=NULL && strcmp(mod,"adm/raw")==0) return;
		603	ses=getvar(ro_name[ro_session]);
7673	bpr	604	/* user has valid session; OK */
12263	bpr	605	if(ses!=NULL && strncmp(ses,robot_session,strlen(robot_session))!=0
		606	&& strchr(ses,'/')==NULL
		607	&& ftest(mkfname(NULL,"%s/%s",s2_dir,ses))==is_dir)
		608	return;
		609	ua=getenv("HTTP_USER_AGENT"); if(ua==NULL) ua="";
		610	ua=find_word_start(ua);
		611	if(strncasecmp(ua,"Mozilla",strlen("Mozilla"))==0 &&
		612	(p=strstr(ua,"compatible"))!=NULL)
		613	ua=find_word_start(find_word_end(p));
		614	if(*ua) {
		615	for(i=0;i<good_agent_no
		616	&& strncasecmp(ua,good_agent[i],strlen(good_agent[i]));i++);
		617	if(i<good_agent_no) return;
		618	for(i=0;i<bad_agent_no
		619	&& strstr(ua,bad_agent[i])==NULL;i++);
		620	if(i<bad_agent_no) user_error("trapped");
		621	}
		622	force_setvar(ro_name[ro_session],robot_session);
		623	setsesdir(robot_session);
		624	c=getvar(ro_name[ro_cmd]);
		625	robot_access=1;
		626	if(c!=NULL && strcmp(c,"new") && strcmp(c,"intro")) {
		627	force_setvar(ro_name[ro_cmd],"robot_error");
		628	nph_header(450); put_special_page("robot");
		629	flushoutput(); flushlog(); exit(0);
		630	}
10	reyssat	631	}
		632
7673	bpr	633	/* type=0: ordinary; type=1: multipart/form-data */
10	reyssat	634	void parse_query_string(int len, int type)
		635	{
12263	bpr	636	int i,j,l,v,cmd_defined;
		637	int parenth=-1, ll, lb, dlen;
		638	char start, p, p1, pt, *b1="";
7673	bpr	639
12263	bpr	640	cmd_defined=0;
		641	setvar("wims_subsession","");
		642	ll=lb=0;
		643	if(type) {
		644	ll=strlen(mpboundary);
		645	start=strstr(var_str,mpboundary);
		646	if(start==NULL) start=var_str+strlen(var_str);
		647	if(strstr(var_str,"\r\n\r\n")!=NULL) b1="\r\n\r\n";
		648	else b1="\n\n";
		649	lb=strlen(b1);
		650	}
		651	else start=var_str;
		652	for(v=0, p1=start;p1<var_str+len;p1+=l) {
10	reyssat	653	if(type) {
12263	bpr	654	char p2, p3, p4, p5;
		655	p2=p1+ll; p3=memstr(p2,mpboundary,var_str+len-p2); l=p3-p1;
		656	p=memstr(p2,b1,var_str+len-p2); if(p>=p3) continue;
		657	p+=lb;
		658	if(p3<var_str+len) {
		659	while(*p3!='\n' && p3>p2) p3--;
		660	*p3=0;
		661	p3--; if(p3=='\r') p3=0;
		662	}
		663	dlen=p3-p;
		664	p2=memstr(p2,"name=",p3-p2); if(p2>=p3) continue;
		665	p2+=strlen("name="); if(*p2=='"') p2++;
		666	for(p3=p2; myisalnum(p3) \|\| strchr("._",p3)!=NULL; p3++);
		667	if(p3==p2) continue;
		668	if(p3-p2==strlen("wims_deposit") &&
		669	strncmp(p2,"wims_deposit",p3-p2)==0) {
		670	p4=memstr(p1,"filename=",p-p1); if(p4<p) {
		671	p4+=strlen("filename="); if(*p4=='"') {
		672	p4++; p5=strchr(p4,'"');
		673	if(p5==NULL \|\| p5-p4>=MAX_FNAME) goto emptyquote;
7673	bpr	674	}
12263	bpr	675	else {
		676	emptyquote:
		677	for(p5=p4; p5<p && !isspace(*p5) &&
		678	strchr(";\"~#?=,'",p5)==NULL; p5++);
		679	}
		680	if(p5>p4) {
		681	*p5=0;
		682	for(p5--;
		683	p5>=p4 && !isspace(p5) && strchr("/\\:",p5)==NULL;
		684	p5--);
		685	if(p5>=p4) p4=p5+1;
		686	if(*p4==0) goto noname;
		687	if(strstr(p4,"..")!=NULL \|\| *p4=='.')
		688	p4="noname.file";
		689	setvar("wims_deposit",p4);
		690	}
		691	else {
		692	noname: setvar("wims_deposit","noname.file");
		693	}
7673	bpr	694	}
12263	bpr	695	deplen=dlen;
		696	}
		697	*p3=0; l-=p2-p1; p1=p2;
		698	}
		699	else {
		700	p1=find_word_start(p1);
		701	l=strlen(p1)+1; p=strchr(p1,'=');
		702	if(p==NULL) p=p1+strlen(p1);
		703	if(*p==0 && l>1) {
		704	user_variable[v].name="no_name";
		705	user_variable[v].value=p1;
		706	coord_input=1;
		707	goto nnext;
7673	bpr	708	}
12263	bpr	709	*p++=0;
		710	}
7673	bpr	711	/* empty name or empty value: ignore */
12263	bpr	712	if(p1==0 \|\| p==0) continue;
7673	bpr	713	/* We do not treat names containing '.' */
12263	bpr	714	for(pt=strchr(p1,'.'); pt; pt=strchr(++pt,'.')) *pt='_';
7673	bpr	715	/* Restrictions on variable names */
12263	bpr	716	for(pt=p1; myisalnum(pt) \|\| pt=='_'; pt++);
		717	if(*pt) continue;
		718	if(strcmp(p1,"wims_deposit")!=0) _tolinux(p);
7673	bpr	719	/* This is a restriction:
8155	bpr	720	* Every parameter must have matching parentheses.
		721	*/
12263	bpr	722	if(parenth==-1 && strncmp(p1,"freepar_",strlen("freepar_"))!=0
7673	bpr	723	&& strcmp(p1,"wims_deposit")!=0
		724	&& check_parentheses(p,1)) parenth=v;
12263	bpr	725	if(strcmp(p1,"special_parm")==0 && strcmp(p,"wims")==0)
7673	bpr	726	human_access=1;
12263	bpr	727	j=search_list(ro_name,RO_NAME_NO,sizeof(ro_name[0]),p1);
		728	if(j>=0) {
		729	if(j==ro_session) {
		730	p=find_word_start(p); *find_word_end(p)=0;
		731	if(strlen(p)>MAX_SESSIONLEN) continue;
		732	if(strcmp(p,robot_session)==0) p="";
		733	if(strcasecmp(p,"popup")==0) {
		734	mode=mode_popup;
		735	force_setvar("wims_mode","popup");
		736	force_setvar("session","");
7673	bpr	737	continue;
12263	bpr	738	}
7673	bpr	739	}
12263	bpr	740	if(j==ro_module) module_defined=1;
		741	if(j==ro_cmd) {
		742	p=find_word_start(p); *find_word_end(p)=0;
		743	if(strlen(p)>16) continue;
		744	cmd_defined=1;
7673	bpr	745	}
12263	bpr	746	if(j==ro_lang) {
		747	if(strlen(p)!=2) continue;
		748	for(i=0;i<available_lang_no && strcmp(available_lang[i],p)!=0;i++);
		749	if(i<available_lang_no) {user_lang=1; ovlstrcpy(lang,p);}
		750	else continue;
		751	}
		752	/* strip leading and trailing '/'s in module name */
		753	if(j==ro_module) {
		754	p=find_word_start(p); *find_word_end(p)=0;
		755	while(*p=='/') p++;
		756	while(p!=0 && (p+strlen(p)-1)=='/') *(p+strlen(p)-1)=0;
		757	if(strlen(p)>MAX_MODULELEN) continue;
		758	}
		759	setvar(p1,p);
		760	if(j==ro_session && mode!=mode_popup) {
		761	char pp, pr;
		762	char buf[1024];
		763	mystrncpy(buf,p,sizeof(buf));
		764	if((pp=strchr(buf,'.'))!=NULL) {
		765	*pp++=0; session_serial=atoi(pp);
		766	if(pp<0) pp=0;
		767	}
		768	else session_serial=0;
		769	pp=strchr(buf,'_');
		770	if(pp!=NULL && (pr=strstr(pp,"_mhelp"))!=NULL) {
		771	*pr=0; ismhelp=1; lastout_file=-1;
		772	setvar("wims_inssub","mh");
		773	}
		774	force_setvar("wims_session",buf);
		775	if(pp!=NULL) force_setvar("wims_subsession",pp);
		776	}
		777	continue;
10	reyssat	778	}
12263	bpr	779	user_variable[v].name=p1;
		780	user_variable[v].value=p;
		781	nnext:v++; if(v>=MAX_VAR_NUM) user_error("too_many_variables");
		782	}
		783	user_var_no=v;
		784	if(parenth>=0) {
		785	char buf[16];
		786	mystrncpy(buf,int2str(user_var_no),sizeof(buf));
		787	setvar("user_var_no",buf);
		788	for(i=0;i<user_var_no;i++) {
		789	snprintf(buf,sizeof(buf),"name%d",i);
		790	setvar(buf,user_variable[i].name);
		791	snprintf(buf,sizeof(buf),"value%d",i);
		792	setvar(buf,user_variable[i].value);
10	reyssat	793	}
12263	bpr	794	mystrncpy(buf,int2str(parenth),sizeof(buf));
		795	setvar("bad_parentheses",buf);
		796	user_error("unmatched_parentheses");
		797	}
		798	p=getenv("SCRIPT_NAME");
		799	if(p!=NULL && (p=strstr(p,"/getfile/"))!=NULL) {
		800	p+=strlen("/getfile/");
		801	force_setvar(ro_name[ro_cmd],commands[cmd_getfile]);
		802	force_setvar("special_parm",p);
		803	cmd_defined=1;
		804	}
		805	if(module_defined && !cmd_defined) setvar(ro_name[ro_cmd],commands[cmd_intro]);
		806	robot_check(); cookie2session();
10	reyssat	807	}
		808
7673	bpr	809	/* parse special commands */
10	reyssat	810	void special_cmds(void)
		811	{
12263	bpr	812	char c, p;
		813	int i;
		814	long int l=-1;
7673	bpr	815
12263	bpr	816	c=getvar(ro_name[ro_cmd]);
		817	if(c==NULL \|\| c==0) { / no module name nor command */
		818	setvar(ro_name[ro_module],home_module);
		819	setvar(ro_name[ro_cmd],commands[cmd_new]);
		820	return;
		821	}
		822	for(i=0;i<CMD_NO && strcmp(commands[i],c)!=0; i++);
		823	switch(i) {
		824	case cmd_intro: {
		825	set_module_prefix();
		826	default_form_method="get";
		827	if(ftest(mkfname(NULL,"%s/%s",module_prefix,intro_file))<0) {
		828	force_setvar(ro_name[ro_cmd],commands[cmd_new]);
		829	return;
		830	}
		831	p=getvar("wims_session");
		832	if(p!=NULL && *p!=0) {
		833	if(set_session_prefix()==0) check_session();
		834	else {
		835	trap_check(p);
		836	if(strchr(p,'_')!=NULL && strchr(p,'/')==NULL) {
		837	get_static_session_var();
7673	bpr	838	}
12263	bpr	839	}
		840	}
7673	bpr	841	/* determine http protocol name. How to detect? */
12263	bpr	842	p=getenv("HTTPS");
		843	if(p!=NULL && strcmp(p,"on")==0) {
		844	protocol="https"; set_protocol();
7673	bpr	845	}
12263	bpr	846	force_setvar("wims_protocol",protocol);
		847	determine_font(lang);
		848	determine_dirn(lang);
		849	main_phtml_put(intro_file); debug_output();
		850	introend: write_logs();free(var_str);
		851	delete_pid(); exit(0);
		852	}
		853	case cmd_ref: {
		854	set_module_prefix();
		855	default_form_method="get";
		856	p=getvar("wims_session");
		857	if(p!=NULL && *p!=0) {
		858	if(set_session_prefix()==0) check_session();
		859	else trap_check(p);
7673	bpr	860	}
12263	bpr	861	determine_font(lang);
		862	determine_dirn(lang);
		863	main_phtml_put(ref_file); goto introend;
		864	}
		865	case cmd_getins: {
		866	c=getvar(ro_name[ro_special_parm]);
		867	if(c==NULL \|\| *c==0) {
		868	user_error_nolog=1; user_error("no_insnum");
		869	}
		870	if(*c=='/' \|\| strstr(c,"..")!=NULL) goto badins;
		871	set_session_prefix();
		872	if(strstr(session_prefix,"robot")!=NULL) exit(0);
		873	l=filelength("%s/%s",s2_prefix,c);
		874	if(l<0) {
		875	badins: user_error_nolog=1; user_error("bad_insnum");
		876	}
		877	{
		878	char *fmt;
		879	fmt=strchr(c,'.');
		880	if(fmt==NULL) {
		881	user_error_nolog=1; user_error("bad_insnum");
		882	}
		883	else fmt++;
7673	bpr	884
12263	bpr	885	nph_header(200);
10	reyssat	886	/* insert format problem; bricolage */
12263	bpr	887	printf("Content-type: image/%s\r\n\
10	reyssat	888	Content-length: %ld\r\n\r\n",fmt,l);
12263	bpr	889	catfile(stdout,"%s/%s",s2_prefix,c); exit(0);
7673	bpr	890	}
12263	bpr	891	}
		892	case cmd_getfile: {
		893	char fname[MAX_FNAME+1];
		894	c=getvar(ro_name[ro_special_parm]);
		895	if(c==NULL \|\| *c==0) {
		896	user_error_nolog=1; user_error("no_insnum");
		897	}
		898	if(*c=='/' \|\| strstr(c,"..")!=NULL) goto badfile;
7673	bpr	899
12263	bpr	900	set_session_prefix();
		901	if(strstr(session_prefix,"robot")!=NULL) exit(0);
		902	mkfname(fname,"%s/getfile/%s",session_prefix,c);
		903	l=filelength("%s",fname);
		904	if(l<0 && strchr(session_prefix,'_')!=NULL) {
		905	char *pt;
		906	mystrncpy(fname,session_prefix,sizeof(fname));
		907	pt=strrchr(fname,'_'); if(pt) *pt=0;
		908	snprintf(fname+(pt-fname),sizeof(fname)-(pt-fname),
		909	"/getfile/%s",c);
		910	l=filelength("%s",fname);
		911	}
		912	if(l<0) {
		913	badfile: user_error_nolog=1; user_error("bad_insnum");
		914	}
		915	if(l>512*1024) {
		916	struct rlimit rlim;
		917	rlimit_cpu=l/(101024);
		918	rlim.rlim_cur=rlim.rlim_max=rlimit_cpu;
		919	initalarm();
		920	}
		921	{
		922	char *p1;
		923	char mime[MAX_LINELEN+1];
		924	for(p1=c+strlen(c);p1>c && isalpha(*(p1-1)); p1--);
		925	ovlstrcpy(mime,"application/octet-stream");
		926	if(p1>c && *(p1-1)=='.') {
		927	setvar("translator_unknown",mime);
		928	setvar("dictionary","bases/sys/mime");
		929	snprintf(mime,sizeof(mime),"translator %s",p1);
		930	calc_exec(mime);
		931	}
		932	nph_header(200);
		933	printf("Content-type: %s\r\n\
10	reyssat	934	Content-length: %ld\r\n\r\n",mime,l);
12263	bpr	935	catfile(stdout,"%s",fname); exit(0);
7673	bpr	936	}
12263	bpr	937	}
12373	bpr	938	case cmd_close: {
		939	char *p, b2[32]; int w;
		940	char nbuf[MAX_FNAME+1], vbuf[MAX_LINELEN+1];
		941	p=getvar(ro_name[ro_session]);
		942	if(p==NULL \|\| strlen(p)<10 \|\|
		943	strchr(p,'/')!=NULL) return;
		944	mystrncpy(b2,p,sizeof(b2));
		945	p=strchr(b2,'.'); if(p!=NULL) *p=0;
		946	mkfname(nbuf,"%s/%s/var.stat",session_dir,b2);
		947	getdef(nbuf,"wims_caller",vbuf);
		948	if(vbuf[0]!=0) force_setvar(ro_name[ro_session],vbuf);
		949	w=wrapexec; wrapexec=1;
		950	call_sh("rm -Rf %s/%s* %s/%s* >/dev/null 2>&1",session_dir,b2,s2_dir,b2);
		951	wrapexec=w; cookiegot[0]=0;
		952	force_setvar(ro_name[ro_cmd],"new");
		953	}
		954	default: return;
12263	bpr	955	}
10	reyssat	956	}
		957
7673	bpr	958	/* This is run only when manually invoking the program.
8155	bpr	959	* Verifies the orderedness of various list tables.
		960	*/
10	reyssat	961	int verify_tables(void)
		962	{
		963	if(verify_order(calc_routine,CALC_FN_NO,sizeof(calc_routine[0]))) return -1;
		964	if(verify_order(exec_routine,EXEC_FN_NO,sizeof(exec_routine[0]))) return -1;
		965	if(verify_order(main_config,MAIN_CONFIG_NO,sizeof(main_config[0]))) return -1;
		966	if(verify_order(mathname,mathname_no,sizeof(mathname[0]))) return -1;
		967	if(verify_order(hmname,hmname_no,sizeof(hmname[0]))) return -1;
		968	if(verify_order(ro_name,RO_NAME_NO,sizeof(ro_name[0]))) return -1;
		969	if(verify_order(distr_cmd,distr_cmd_no,sizeof(distr_cmd[0]))) return -1;
		970	if(verify_order(internal_name,INTERNAL_NAME_NO,
7673	bpr	971	sizeof(internal_name[0]))) return -1;
10	reyssat	972	if(verify_order(tmathfn,tmathfn_no,sizeof(tmathfn[0]))) return -1;
		973	if(verify_order(tmathvar,tmathvar_no,sizeof(tmathvar[0]))) return -1;
		974	if(verify_order(modindex,MODINDEX_NO,sizeof(modindex[0]))) return -1;
		975	if(verify_order(exportvars,exportvarcnt,sizeof(exportvars[0]))) return -1;
		976	if(evaltab_verify()) return -1;
		977	if(textab_verify()) return -1;
		978	return 0;
		979	}
		980
		981	void config_defaults(void)
		982	{
3857	kbelabas	983	int i;
10	reyssat	984	for(i=0;i<MAIN_CONFIG_NO;i++) {
7673	bpr	985	if((1&main_config[i].is_integer)==1) {
		986	int pi = (int)main_config[i].address;
		987	printf("DF_%s=%d\n",main_config[i].name, *pi);
3857	kbelabas	988	}
7673	bpr	989	else {
3857	kbelabas	990	char ps = (char)main_config[i].address;
7673	bpr	991	printf("DF_%s=%s\n",main_config[i].name,*ps);
3857	kbelabas	992	}
10	reyssat	993	}
		994	}
		995
7673	bpr	996	/* get and set useroptions */
10	reyssat	997	void useropts(void)
		998	{
		999	char *p;
		1000	setvar("lang",lang);
		1001	p=getvar("useropts");
		1002	if(p==NULL \|\| *p==0) p=getvar("wims_useropts");
		1003	if(p!=NULL && *p!=0) {
6178	bpr	1004	if(myisdigit(p[0])) {
		1005	usertexsize=p[0]-'0';
6184	bpr	1006	/* fourth digit is for special fonts*/
6178	bpr	1007	if(p[1]!=0) { mathalign_base=p[1]-'0'; }
		1008	}
6184	bpr	1009	if(myisdigit(p[3]) && p[3]!=0){ spec_font=p[3]-'0';}
		1010	}
		1011	if(mathalign_base==1) {
6178	bpr	1012	mathalign_sup1="<sup>"; mathalign_sup2="</sup>";
6184	bpr	1013	} else mathalign_sup1=mathalign_sup2="";
10	reyssat	1014	}
		1015
7673	bpr	1016	/* popup module help */
10	reyssat	1017	void mhelp(void)
		1018	{
		1019	char *p, buf[MAX_LINELEN+1];
		1020	main_phtml_put(""); buf[0]=0;
		1021	if(cmd_type!=cmd_help) {
7673	bpr	1022	phtml_put_base("closemhelp.phtml",0);
10	reyssat	1023	}
		1024	else {
7673	bpr	1025	phtml_put_base("mhelpheader.phtml",0);
		1026	p=getvar("special_parm");
		1027	if(p!=NULL && strcmp(p,"about")==0)
		1028	phtml_put("about.phtml",0);
11125	georgesk	1029	else phtml_put("help.phtml",0);
		1030	phtml_put_base("mhelptail.phtml",0);
7673	bpr	1031	exec_tail(buf);
10	reyssat	1032	}
		1033	}
		1034
		1035	#define READSTDIN_WINDOW 4096
		1036
		1037	void readstdin(int len)
		1038	{
		1039	int ll, l1, lt, lr;
		1040	int cpulim;
7673	bpr	1041
10	reyssat	1042	cpulim=rlimit_cpu; rlimit_cpu=3;
		1043	lr=len; l1=0;
		1044	while(lr>0) {
7673	bpr	1045	nowtime=time(0); initalarm();
		1046	ll=lr; if(ll>READSTDIN_WINDOW) ll=READSTDIN_WINDOW;
		1047	lt=fread(stdinbuf+l1,1,ll,stdin);
		1048	if(lt!=ll) user_error("parm_too_long");
		1049	lr-=ll; l1+=ll;
10	reyssat	1050	}
		1051	if(l1!=len) user_error("parm_too_long");
		1052	stdinbuf[len]=0; rlimit_cpu=cpulim;
		1053	}
		1054
7673	bpr	1055	/* input: p=QUERY_STRING. output: parameter length. */
		1056	/* Netscape puts form content into /tmp. */
10	reyssat	1057	int formdata(char *p)
		1058	{
		1059	char *pp;
		1060	int inlen;
		1061	char *ctype;
		1062	inlen=0; ctype=getenv("CONTENT_TYPE");
		1063	if(ctype==NULL \|\| strstr(ctype,"multipart/form-data")==NULL
		1064	\|\| (p=strstr(ctype,"boundary="))==NULL) {
7673	bpr	1065	bad: stdinbuf=""; return 0;
10	reyssat	1066	}
		1067	pp=getenv("CONTENT_LENGTH");
		1068	if(pp==NULL) goto bad;
		1069	inlen=atoi(pp); if(inlen<=10) goto bad;
		1070	if(inlen>=MAX_DEPOSITLEN) user_error("parm_too_long");
		1071	stdinbuf=xmalloc(inlen+1); readstdin(inlen);
		1072	p+=strlen("boundary=");
		1073	for(pp=p;myisalnum(pp) \|\| pp=='-'; pp++);
		1074	if(pp-p<sizeof(mpboundary)-2) {
7673	bpr	1075	memmove(mpboundary,p,pp-p); mpboundary[pp-p]=0;
10	reyssat	1076	}
7673	bpr	1077	/* empty data */
10	reyssat	1078	if(strstr(stdinbuf,mpboundary)==NULL \|\| strstr(stdinbuf,"name=")==NULL) {
7673	bpr	1079	free(stdinbuf); goto bad;
10	reyssat	1080	}
		1081	form_access=1; post_log();
		1082	return inlen;
		1083	}
		1084
7673	bpr	1085	/* get the content of POST */
10	reyssat	1086	void getpost(void)
		1087	{
		1088	int ll;
		1089	char *pp;
		1090	pp=getenv("CONTENT_LENGTH");
		1091	if(pp==NULL \|\| (ll=atoi(pp))<=0) {
7673	bpr	1092	stdinbuf=xmalloc(16); stdinbuf[0]=0;
10	reyssat	1093	}
		1094	else {
7673	bpr	1095	if(ll>QUERY_STRING_LIMIT) user_error("parm_too_long");
		1096	stdinbuf=xmalloc(ll+16); readstdin(ll);
		1097	if(ll>0) {
		1098	setenv("QUERY_STRING",stdinbuf,1);
		1099	form_access=1; post_log();
		1100	}
10	reyssat	1101	}
		1102	}
		1103
		1104	void buffer_init(void)
		1105	{
		1106	struct timeval tv;
7673	bpr	1107
10	reyssat	1108	mcachecnt=readnest=0;
		1109	mpboundary[0]=cookiegot[0]=cookieset[0]=cwdbuf[0]=0;
		1110	rscore_class[0]=rscore_user[0]=multiexec_random[0]=0;
		1111	lastftest[0]=0;
		1112	lastdatafile[0]=0; lastdata=xmalloc(WORKFILE_LIMIT);
		1113	outptr=outbuf;
		1114	instex_src[0]=instex_fname[0]=module_prefix[0]=0;
		1115	examlogf[0]=examlogd[0]=exam_sheetexo[0]=0;
		1116	stdinbuf=NULL;
		1117	mkfname(tmp_dir,"../tmp/forall");
		1118	mkfname(session_dir,"../%s",SESSION_BASE);
		1119	mkfname(s2_dir,"../%s",S2_BASE);
		1120	if(gettimeofday(&tv,NULL)) startmtime=startmtime2=0;
		1121	else {
7673	bpr	1122	startmtime=((tv.tv_sec%10000)*1000+tv.tv_usec/1000);
		1123	startmtime2=(tv.tv_sec%1000)*1000000+tv.tv_usec;
10	reyssat	1124	}
		1125	}
		1126
8216	bpr	1127	/**
		1128	* runs the test suite, to check whether the documented commands of modtool
		1129	* behave properly.
		1130	* @param prefix path to the proc file to process
		1131	* @param p name of the proc file to proceed
		1132	* @param vars a list of var names to print.
		1133	**/
		1134	void test_suite(char prefix, char p, char *vars){
		1135	char v, nextv;
		1136	mystrncpy(module_prefix, prefix, sizeof(module_prefix));
		1137	exec_read(p);
		1138	nextv=vars;
		1139	while (*nextv!='\0'){
		1140	v=find_word_start(nextv);
		1141	nextv=find_word_end(v);
		1142	if (*nextv != '\0'){
		1143	*nextv++='\0';
		1144	}
8925	bpr	1145	v=getvar(v);
		1146	if(v) puts(v); else putchar('\n');
8216	bpr	1147	}
		1148	}
		1149
10	reyssat	1150	int main(int argc, char argv[], char envp[])
		1151	{
12011	bpr	1152	char *p, homebuf[MAX_FNAME+1], lbuf[32], buf[64];
10	reyssat	1153	int inlen=0;
8155	bpr	1154	/* int mfd; */
8195	bpr	1155
10	reyssat	1156	class_dir[0]=0;
		1157	substitute=substit; buffer_init(); var_init();
7673	bpr	1158	/* WIMS internal locale is always C. */
10	reyssat	1159	setenv("LANG","C",1); umask(022);
		1160	setenv("LANGUAGE","us",1);
		1161	setenv("LC_ALL","C",1);
		1162	if(argc>1) {
7673	bpr	1163	if(strcasecmp(argv[1],"table")==0) {
		1164	if(verify_tables()) internal_error("Table disorder.");
		1165	else printf("Table orders OK.\n");
		1166	return 0;
		1167	}
		1168	if(strcasecmp(argv[1],"version")==0) {
		1169	printf("%s",wims_version); return 0;
		1170	}
		1171	if(strcasecmp(argv[1],"defaults")==0) {
		1172	config_defaults(); return 0;
		1173	}
8216	bpr	1174	if(strcasecmp(argv[1],"test")==0) {
8851	bpr	1175	/* launches a test suite */
12288	bpr	1176	if (argc < 5) {
		1177	printf("Not enough arguments to launch a test; usage:\n");
		1178	printf("wims test path_to_file name_of_proc_file 'var1 var2 ...'\n\n");
		1179	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");
		1180	return 1;
		1181	}
		1182	test_suite(argv[2], argv[3], argv[4]);
		1183	return 0;
		1184	}
10	reyssat	1185	}
		1186	p=getenv("SERVER_SOFTWARE"); if(p!=NULL && strcasecmp(p,"WIMS")==0)
		1187	httpd_type=httpd_wims;
		1188	p=getenv("REMOTE_ADDR"); if(p!=NULL) remote_addr=p;
		1189	p=getenv("REMOTE_HOST"); if(p!=NULL) remote_host=p;
		1190	nowtime=time(0); now=localtime(&nowtime);
9286	bpr	1191	/* nowtime contains the seconds elapsed from EPOCH (1970)
		1192	but tm_year is set to current year-1900.
		1193	*/
10	reyssat	1194	memmove(&Now, now, sizeof(Now)); now=&Now;
		1195	snprintf(nowstr,sizeof(nowstr),"%04d%02d%02d.%02d:%02d:%02d",
7673	bpr	1196	(now->tm_year)+1900,(now->tm_mon)+1,now->tm_mday,
		1197	now->tm_hour,now->tm_min,now->tm_sec);
10	reyssat	1198	p=getenv("QUERY_STRING");
		1199	if(p==NULL \|\| *p==0) getpost();
		1200	else if(strncmp(p,"form-data",9)==0) inlen=formdata(p);
7673	bpr	1201
10	reyssat	1202	force_setvar("wims_now",nowstr);
		1203	snprintf(lbuf,sizeof(lbuf),"%lu",nowtime);
		1204	force_setvar("wims_nowseconds",lbuf);
		1205	nowtime=time(0);
		1206	initalarm();
7673	bpr	1207
10	reyssat	1208	executed_gotos=insert_no=output_length=0; ins_alt[0]=0;
7673	bpr	1209	setvar("empty",""); /* lock this variable */
10	reyssat	1210	setvar("wims_version",wims_version);
		1211	setvar("wims_version_date",wims_version_date);
		1212	setvar("wims_main_font","utf-8");
		1213	take_httpd_vars();
		1214
		1215	main_configure();
		1216	checklogd();
8155	bpr	1217	/* mfd=shm_open(SHM_NAME,O_RDONLY,-1);
		1218	* if(mfd==-1) internal_error("Unable to find shared memory.");
		1219	* shmptr=mmap(0,SHM_SIZE,PROT_READ,MAP_SHARED,mfd,0);
		1220	* if(shmptr==MAP_FAILED) internal_error("Shared memory failure.");
		1221	*/
7673	bpr	1222	getppid(); /* this is the first sysmask trigger, must be after checklogd() */
10	reyssat	1223	predetermine_language();
6784	kbelabas	1224	/* modify a few rlimits for 64-bit processors */
		1225	if (sizeof(long) == 8) {
		1226	rlimit_as=2; / virtual memory size */
		1227	rlimit_data=2; / data segment size; maxima requires a lot */
		1228	rlimit_stack=2; / stack size */
		1229	}
10	reyssat	1230	set_rlimits();
12011	bpr	1231	/init_random();/
12363	bpr	1232	seed_time();
		1233	p=getvar("wims_seed");
		1234	mystrncpy(buf,p,sizeof(buf));
		1235	exec_setseed(buf);
10	reyssat	1236	module_configure();
		1237	set_job_ident();
		1238	m_file.name[0]=0;m_file.linecnt=m_file.linepointer=0;
		1239	p=getenv("QUERY_STRING");
		1240	if(p==NULL \|\| strlen(p)==0) {
7673	bpr	1241	setvar("lang",lang);
		1242	snprintf(homebuf,sizeof(homebuf),"module=%s",home_module);
		1243	p=homebuf;
10	reyssat	1244	}
		1245	if(strlen(p)>=QUERY_STRING_LIMIT) user_error("parm_too_long");
		1246	if(mpboundary[0]==0) {
7673	bpr	1247	var_str=xmalloc(strlen(p)+2);
		1248	parse_query_string(http2env(var_str,p),0);
10	reyssat	1249	}
		1250	else {
7673	bpr	1251	var_str=stdinbuf;
		1252	parse_query_string(inlen,1);
10	reyssat	1253	}
		1254	if(ismhelp) {
7673	bpr	1255	p=getvar(ro_name[ro_cmd]);
		1256	if(p==NULL \|\| (strcmp(p,"help")!=0 && strcmp(p,"getins")!=0)) {
		1257	mhelp(); goto outgo;
		1258	}
10	reyssat	1259	}
		1260	check_exam();
		1261	useropts();
		1262	special_cmds();
		1263	parse_ro_names();
		1264	manager_check();
		1265	access_check(0);
11132	bpr	1266	/* it is really for developing in wims, so no use in general */
12263	bpr	1267	if (1==1) {
10051	bpr	1268	if(strstr(tmp_debug,"yes")!=NULL && checkhost(manager_site)>=1)
12363	bpr	1269	trace_file = fopen(mkfname(NULL,"%s/%s",tmp_dir,"trace.txt"),"a");
12263	bpr	1270	}
		1271	set_variables();
		1272	determine_font(getvar("module_language"));
		1273	determine_dirn(getvar("module_language"));
		1274	if(!robot_access && session_prefix[0]!=0 && cmd_type!=cmd_help && !ismhelp)
		1275	lastout_file=creat(mkfname(NULL,"%s/%s",s2_prefix,lastout),
		1276	S_IRUSR\|S_IWUSR);
		1277	p=getvar("module_score");
		1278	if(p!=NULL) force_setvar("wims_seed_score",p);
		1279	p=getvar("module_category");
		1280	if(p==NULL \|\| strstr(p,"tool")==NULL) default_form_method="get";
		1281	if(noout) {
		1282	write_logs(); save_session_vars();
		1283	goto outgo;
		1284	}
		1285	if(ismhelp) {
		1286	mhelp();
		1287	}
		1288	else {
		1289	main_phtml_put(html_file);
		1290	if(lastout_file!=-1) {
12507	bpr	1291	flushoutput(); close(lastout_file); putlastout();
10	reyssat	1292	}
12263	bpr	1293	write_logs(); save_session_vars();
		1294	}
		1295	outgo:
		1296	debug_output();
		1297	if (trace_file) { fclose(trace_file); trace_file=NULL; }
		1298	if(var_str!=stdinbuf) free(var_str);
		1299	delete_pid();
		1300	if(mode!=mode_popup && trusted_module()) {
		1301	p=getvar("wims_mode");
		1302	if(p!=NULL && strcmp(p,"popup")==0) mode=mode_popup;
		1303	}
		1304	if(mode==mode_popup && insert_no==0) {
		1305	p=getvar("wims_mode");
		1306	if(p!=NULL && strcmp(p,"popup")==0) {
		1307	remove_tree(session_prefix);
7673	bpr	1308
12263	bpr	1309	remove_tree(s2_prefix);
10	reyssat	1310	}
12263	bpr	1311	}
		1312	return 0;
10	reyssat	1313	}

Subversion Repositories wimsdev

(root)/trunk/wims/src/wims.c – Rev 15573