int sslNotAvailable;    /* SSL is not available.  Do not redirect to https: */
  Blob cgiIn;             /* Input to an xfer www method */
  int cgiOutput;          /* Write error and status messages to CGI */
  int xferPanic;          /* Write error messages in XFER protocol */
  int fullHttpReply;      /* True for full HTTP reply.  False for CGI reply */
  Th_Interp *interp;      /* The TH1 interpreter */
  char *th1Setup;         /* The TH1 post-creation setup script, if any */
  int th1Flags;           /* The TH1 integration state flags */
  FILE *httpIn;           /* Accept HTTP input from here */
  FILE *httpOut;          /* Send HTTP output here */
  int xlinkClusterOnly;   /* Set when cloning.  Only process clusters */
  int fTimeFormat;        /* 1 for UTC.  2 for localtime.  0 not yet selected */
  int *aCommitFile;       /* Array of files to be committed */
  int markPrivate;        /* All new artifacts are private if true */
  int clockSkewSeen;      /* True if clocks on client and server out of sync */

** interpreter creation and initialization process.
*/
#define TH_INIT_NONE        ((u32)0x00000000) /* No flags. */
#define TH_INIT_NEED_CONFIG ((u32)0x00000001) /* Open configuration first? */
#define TH_INIT_FORCE_TCL   ((u32)0x00000002) /* Force Tcl to be enabled? */
#define TH_INIT_FORCE_RESET ((u32)0x00000004) /* Force TH1 commands re-added? */
#define TH_INIT_FORCE_SETUP ((u32)0x00000008) /* Force eval of setup script? */
#define TH_INIT_MASK        ((u32)0x0000000F) /* All possible init flags. */
#define TH_INIT_DEFAULT     (TH_INIT_NONE)    /* Default flags. */
#define TH_INIT_HOOK        (TH_INIT_NEED_CONFIG | TH_INIT_FORCE_SETUP)
#endif

/*
** Flags set by functions in this file to keep track of integration state
** information.  These flags should not be used outside of this file.
*/
#define TH_STATE_CONFIG     ((u32)0x00000010) /* We opened the config. */
#define TH_STATE_REPOSITORY ((u32)0x00000020) /* We opened the repository. */
#define TH_STATE_MASK       ((u32)0x00000030) /* All possible state flags. */

#ifdef FOSSIL_ENABLE_TH1_HOOKS
/*
** These are the "well-known" TH1 error messages that occur when no hook is
** registered to be called prior to executing a command or processing a web
** page, respectively.  If one of these errors is seen, it will not be sent
** or displayed to the remote user or local interactive user, respectively.
*/
#define NO_COMMAND_HOOK_ERROR "no such command:  command_hook"
#define NO_WEBPAGE_HOOK_ERROR "no such command:  webpage_hook"
#endif

/*
** These macros are used within this file to detect if the repository and
** configuration ("user") database are currently open.
*/
#define Th_IsRepositoryOpen()     (g.repositoryOpen)
#define Th_IsConfigOpen()         (g.zConfigDbName!=0)

/*
** Global variable counting the number of outstanding calls to malloc()
** made by the th1 implementation. This is used to catch memory leaks
** in the interpreter. Obviously, it also means th1 is not threadsafe.
*/
static int nOutstandingMalloc = 0;

  int argc,
  const char **argv,
  int *argl
){
  if( argc!=2 ){
    return Th_WrongNumArgs(interp, "styleHeader TITLE");
  }
  if( Th_IsRepositoryOpen() ){
    style_header("%s", argv[1]);
    Th_SetResult(interp, 0, 0);
    return TH_OK;
  }else{
    Th_SetResult(interp, "repository unavailable", -1);
    return TH_ERROR;
  }
}

/*
** TH1 command:     styleFooter
**
** Render the configured style footer.
*/
static int styleFooterCmd(
  Th_Interp *interp,
  void *p,
  int argc,
  const char **argv,
  int *argl
){
  if( argc!=1 ){
    return Th_WrongNumArgs(interp, "styleFooter");
  }
  if( Th_IsRepositoryOpen() ){
    style_footer();
    Th_SetResult(interp, 0, 0);
    return TH_OK;
  }else{
    Th_SetResult(interp, "repository unavailable", -1);
    return TH_ERROR;
  }
}

#ifdef _WIN32
# include <windows.h>
#else

/*
** Attempts to open the configuration ("user") database.  Optionally, also
** attempts to try to find the repository and open it.
*/
void Th_OpenConfig(
  int openRepository
){
  if( openRepository && !Th_IsRepositoryOpen() ){
    db_find_and_open_repository(OPEN_ANY_SCHEMA | OPEN_OK_NOT_FOUND, 0);
    if( Th_IsRepositoryOpen() ){
      g.th1Flags |= TH_STATE_REPOSITORY;
    }else{
      g.th1Flags &= ~TH_STATE_REPOSITORY;
    }
  }
  if( !Th_IsConfigOpen() ){
    db_open_config(0);
    if( Th_IsConfigOpen() ){
      g.th1Flags |= TH_STATE_CONFIG;
    }else{
      g.th1Flags &= ~TH_STATE_CONFIG;
    }
  }
}

/*
** Attempts to close the configuration ("user") database.  Optionally, also
** attempts to close the repository.
*/
void Th_CloseConfig(
  int closeRepository
){
  if( g.th1Flags & TH_STATE_CONFIG ){
    db_close_config();
    g.th1Flags &= ~TH_STATE_CONFIG;
  }
  if( closeRepository && (g.th1Flags & TH_STATE_REPOSITORY) ){
    db_close(1);
    g.th1Flags &= ~TH_STATE_REPOSITORY;
  }
}

/*
** Make sure the interpreter has been initialized.  Initialize it if
** it has not been already.
**

      }
    }
    if( g.thTrace ){
      Th_Trace("th1-setup {%h} => %h<br />\n", g.th1Setup,
               Th_ReturnCodeName(rc, 0));
    }
  }
  g.th1Flags &= ~TH_INIT_MASK;
  g.th1Flags |= (flags & TH_INIT_MASK);
}

/*
** Store a string value in a variable in the interpreter.
*/
void Th_Store(const char *zName, const char *zValue){
  Th_FossilInit(TH_INIT_DEFAULT);

int Th_CommandHook(
  const char *zName,
  char cmdFlags
){
  int rc = TH_OK;
  Th_OpenConfig(1);
  if( fossil_getenv("TH1_ENABLE_HOOKS")==0 && !db_get_boolean("th1-hooks", 0) ){
    Th_CloseConfig(1);
    return rc;
  }
  Th_CloseConfig(1);
  Th_FossilInit(TH_INIT_HOOK);
  Th_Store("cmd_name", zName);
  Th_StoreList("cmd_args", g.argv, g.argc);
  Th_StoreInt("cmd_flags", cmdFlags);

int Th_CommandNotify(
  const char *zName,
  char cmdFlags
){
  int rc = TH_OK;
  Th_OpenConfig(1);
  if( fossil_getenv("TH1_ENABLE_HOOKS")==0 && !db_get_boolean("th1-hooks", 0) ){
    Th_CloseConfig(1);
    return rc;
  }
  Th_CloseConfig(1);
  Th_FossilInit(TH_INIT_HOOK);
  Th_Store("cmd_name", zName);
  Th_StoreList("cmd_args", g.argv, g.argc);
  Th_StoreInt("cmd_flags", cmdFlags);

int Th_WebpageHook(
  const char *zName,
  char cmdFlags
){
  int rc = TH_OK;
  Th_OpenConfig(1);
  if( fossil_getenv("TH1_ENABLE_HOOKS")==0 && !db_get_boolean("th1-hooks", 0) ){
    Th_CloseConfig(1);
    return rc;
  }
  Th_CloseConfig(1);
  Th_FossilInit(TH_INIT_HOOK);
  Th_Store("web_name", zName);
  Th_StoreList("web_args", g.argv, g.argc);
  Th_StoreInt("web_flags", cmdFlags);

int Th_WebpageNotify(
  const char *zName,
  char cmdFlags
){
  int rc = TH_OK;
  Th_OpenConfig(1);
  if( fossil_getenv("TH1_ENABLE_HOOKS")==0 && !db_get_boolean("th1-hooks", 0) ){
    Th_CloseConfig(1);
    return rc;
  }
  Th_CloseConfig(1);
  Th_FossilInit(TH_INIT_HOOK);
  Th_Store("web_name", zName);
  Th_StoreList("web_args", g.argv, g.argc);
  Th_StoreInt("web_flags", cmdFlags);

/*
** COMMAND: test-th-hook
*/
void test_th_hook(void){
  int rc = TH_OK;
  int nResult = 0;
  char *zResult;
  Th_InitTraceLog();
  if( g.argc<5 ){
    usage("TYPE NAME FLAGS");
  }
  if( fossil_stricmp(g.argv[2], "cmdhook")==0 ){
    rc = Th_CommandHook(g.argv[3], (char)atoi(g.argv[4]));
  }else if( fossil_stricmp(g.argv[2], "cmdnotify")==0 ){
    rc = Th_CommandNotify(g.argv[3], (char)atoi(g.argv[4]));
  }else if( fossil_stricmp(g.argv[2], "webhook")==0 ){
    rc = Th_WebpageHook(g.argv[3], (char)atoi(g.argv[4]));
  }else if( fossil_stricmp(g.argv[2], "webnotify")==0 ){
    rc = Th_WebpageNotify(g.argv[3], (char)atoi(g.argv[4]));
  }else{
    fossil_fatal("Unknown TH1 hook %s\n", g.argv[2]);
  }
  zResult = (char*)Th_GetResult(g.interp, &nResult);
  sendText("RESULT (", -1, 0);
  sendText(Th_ReturnCodeName(rc, 0), -1, 0);
  sendText("): ", -1, 0);
  sendText(zResult, nResult, 0);
  sendText("\n", -1, 0);
  Th_PrintTraceLog();
}
#endif

#   http://www.hwaci.com/drh/
#
############################################################################
#
# TH1 Commands
#

fossil test-th-eval --th-open-config "setting th1-hooks"
set th1Hooks [expr {$RESULT eq "1"}]

###############################################################################

fossil test-th-eval --th-open-config "setting abc"
test th1-setting-1 {$RESULT eq ""}

###############################################################################

fossil test-th-eval --th-open-config "setting -- abc"
test th1-setting-2 {$RESULT eq ""}

fossil test-th-eval "trace {}"
test th1-trace-1 {$RESULT eq {}}

###############################################################################

fossil test-th-eval --th-trace "trace {}"
if {$th1Hooks} {
  test th1-trace-2 {[string map [list \r\n \n] [string trim $RESULT]] eq \
{------------------ BEGIN TRACE LOG ------------------

------------------- END TRACE LOG -------------------}}
} else {
  test th1-trace-2 {[string map [list \r\n \n] [string trim $RESULT]] eq \
      {------------------ BEGIN TRACE LOG ------------------
th1-setup {} => TH_OK<br />

------------------- END TRACE LOG -------------------}}
}

###############################################################################

fossil test-th-eval "trace {this is a trace message.}"
test th1-trace-3 {$RESULT eq {}}

###############################################################################

fossil test-th-eval --th-trace "trace {this is a trace message.}"
if {$th1Hooks} {
  test th1-trace-4 {[string map [list \r\n \n] [string trim $RESULT]] eq \
      {------------------ BEGIN TRACE LOG ------------------
this is a trace message.
------------------- END TRACE LOG -------------------}}
} else {
  test th1-trace-4 {[string map [list \r\n \n] [string trim $RESULT]] eq \
      {------------------ BEGIN TRACE LOG ------------------
th1-setup {} => TH_OK<br />
this is a trace message.
------------------- END TRACE LOG -------------------}}
}

###############################################################################

fossil test-th-eval "styleHeader {Page Title Here}"
test th1-header-1 {$RESULT eq {TH_ERROR: repository unavailable}}

###############################################################################

fossil test-th-eval --th-open-config "styleHeader {Page Title Here}"
test th1-header-2 {[regexp -- {<title>Fossil: Page Title Here</title>} $RESULT]}

###############################################################################

fossil test-th-eval "styleFooter"
test th1-footer-1 {$RESULT eq {TH_ERROR: repository unavailable}}

###############################################################################

fossil test-th-eval --th-open-config "styleFooter"
test th1-footer-2 {$RESULT eq {}}

###############################################################################

fossil test-th-eval --th-open-config "styleHeader {}; styleFooter"
test th1-footer-3 {[regexp -- {</body></html>} $RESULT]}

###############################################################################

fossil test-th-eval "getParameter"
test th1-get-parameter-1 {$RESULT eq \
    {TH_ERROR: wrong # args: should be "getParameter NAME ?DEFAULT?"}}