if( g.argc<3 ){
    usage("changes|clean|extra|ignore|list|ls|pull|push|rebuild|sync");
  }
  n = strlen(g.argv[2]);
  db_open_config(1);
  blob_zero(&extra);
  zCmd = g.argv[2];
  if( !login_is_nobody() ) blob_appendf(&extra, " -U %s", g.zLogin);
  if( strncmp(zCmd, "list", n)==0 || strncmp(zCmd,"ls",n)==0 ){
    zCmd = "list";
    useCheckouts = find_option("ckout","c",0)!=0;
  }else if( strncmp(zCmd, "clean", n)==0 ){
    zCmd = "clean --chdir";
    collect_argument(&extra, "allckouts",0);
    collect_argument_value(&extra, "case-sensitive");

    n = strlen(zComment);
    while( n>0 && fossil_isspace(zComment[n-1]) ){ n--; }
    if( n>0 ){
      blob_appendf(&manifest, "C %#F\n", n, zComment);
    }
    zDate = date_in_standard_format("now");
    blob_appendf(&manifest, "D %s\n", zDate);
    blob_appendf(&manifest, "U %F\n", login_name());
    md5sum_blob(&manifest, &cksum);
    blob_appendf(&manifest, "Z %b\n", &cksum);
    attach_put(&manifest, rid, needModerator);
    assert( blob_is_reset(&manifest) );
    db_end_transaction(0);
    cgi_redirect(zFrom);
  }

      if( zFile[i]=='/' || zFile[i]=='\\' ) n = i;
    }
    zFile += n;
    if( zFile[0]==0 ) zFile = "unknown";
    blob_appendf(&manifest, "A %F %F\n", zFile, zTarget);
    zDate = date_in_standard_format("now");
    blob_appendf(&manifest, "D %s\n", zDate);
    blob_appendf(&manifest, "U %F\n", login_name());
    md5sum_blob(&manifest, &cksum);
    blob_appendf(&manifest, "Z %b\n", &cksum);
    rid = content_put(&manifest);
    manifest_crosslink(rid, &manifest, MC_NONE);
    db_end_transaction(0);
    @ <p>The attachment below has been deleted.</p>
  }

      rootid);
  while( db_step(&q)==SQLITE_ROW ){
    const char *zTag = db_column_text(&q, 0);
    blob_appendf(&branch, "T -%F *\n", zTag);
  }
  db_finalize(&q);

  blob_appendf(&branch, "U %F\n", zUserOvrd ? zUserOvrd : login_name());
  md5sum_blob(&branch, &mcksum);
  blob_appendf(&branch, "Z %b\n", &mcksum);
  if( !noSign && clearsign(&branch, &branch) ){
    Blob ans;
    char cReply;
    prompt_user("unable to sign manifest.  continue (y/N)? ", &ans);
    cReply = blob_str(&ans)[0];

**
** A CAPTCHA is required in those cases if the user is not logged in (if they
** are user "nobody") and if the "require-captcha" setting is true.  The
** "require-captcha" setting is controlled on the Admin/Access page.  It
** defaults to true.
*/
int captcha_needed(void){

  return login_is_nobody() && db_get_boolean("require-captcha", 1);
}

/*
** If a captcha is required but the correct captcha code is not supplied
** in the query parameters, then return false (0).
**
** If no captcha is required or if the correct captcha is supplied, return

  blob_init(&prompt, zInit, -1);
#endif
  blob_append(&prompt,
    "\n"
    "# Enter commit message for this check-in. Lines beginning with # are ignored.\n"
    "#\n", -1
  );
  blob_appendf(&prompt, "# user: %s\n", p->zUserOvrd ? p->zUserOvrd : login_name());
  if( p->zBranch && p->zBranch[0] ){
    blob_appendf(&prompt, "# tags: %s\n#\n", p->zBranch);
  }else{
    char *zTags = info_tags_of_checkin(parent_rid, 1);
    if( zTags )  blob_appendf(&prompt, "# tags: %z\n#\n", zTags);
  }
  status_report(&prompt, "# ", 1, 0);

  Blob *pComment;             /* Check-in comment text */
  const char *zMimetype;      /* Mimetype of check-in command.  May be NULL */
  int verifyDate;             /* Verify that child is younger */
  int closeFlag;              /* Close the branch being committed */
  int integrateFlag;          /* Close merged-in branches */
  Blob *pCksum;               /* Repository checksum.  May be 0 */
  const char *zDateOvrd;      /* Date override.  If 0 then use 'now' */
  const char *zUserOvrd;      /* User override.  If 0 then use login_name() */
  const char *zBranch;        /* Branch name.  May be 0 */
  const char *zColor;         /* One-time background color.  May be 0 */
  const char *zBrClr;         /* Persistent branch color.  May be 0 */
  const char **azTag;         /* Tags to apply to this check-in */
};
#endif /* INTERFACE */

        vid, p->zBranch);
    while( db_step(&q)==SQLITE_ROW ){
      const char *zBrTag = db_column_text(&q, 0);
      blob_appendf(pOut, "T -%F *\n", zBrTag);
    }
    db_finalize(&q);
  }
  blob_appendf(pOut, "U %F\n", p->zUserOvrd ? p->zUserOvrd : login_name());
  md5sum_blob(pOut, &mcksum);
  blob_appendf(pOut, "Z %b\n", &mcksum);
  if( pnFBcard ) *pnFBcard = nFBcard;
}

/*
** Issue a warning and give the user an opportunity to abandon out

      ** artifact for each. */
      db_prepare(&q, "SELECT x FROM newtags ORDER BY x");
      while( db_step(&q)==SQLITE_ROW ){
        blob_appendf(&event, "T +sym-%F *\n", db_column_text(&q, 0));
      }
      db_finalize(&q);
    }
    if( !login_is_nobody() ){
      blob_appendf(&event, "U %F\n", login_name());
    }
    blob_appendf(&event, "W %d\n%s\n", strlen(zBody), zBody);
    md5sum_blob(&event, &cksum);
    blob_appendf(&event, "Z %b\n", &cksum);
    blob_reset(&cksum);
    nrid = content_put(&event);
    db_multi_exec("INSERT OR IGNORE INTO unsent VALUES(%d)", nrid);

  Blob content;

  rid = name_to_rid_www("name");
  login_check_credentials();
  if( !g.perm.Read ){ login_needed(); return; }
  if( rid==0 ) fossil_redirect_home();
  zUuid = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", rid);
  if( fossil_strcmp(P("name"), zUuid)==0 && login_is_nobody() ){
    g.isConst = 1;
  }
  free(zUuid);
  zMime = P("m");
  if( zMime==0 ){
    char *zFName = db_text(0, "SELECT filename.name FROM mlink, filename"
                              " WHERE mlink.fid=%d"

        blob_appendf(&ctrl, "T %s%F %s\n", zPrefix, zTag, zUuid);
      }
    }
    db_finalize(&q);
    if( nChng>0 ){
      int nrid;
      Blob cksum;
      blob_appendf(&ctrl, "U %F\n", login_name());
      md5sum_blob(&ctrl, &cksum);
      blob_appendf(&ctrl, "Z %b\n", &cksum);
      db_begin_transaction();
      g.markPrivate = content_is_private(rid);
      nrid = content_put(&ctrl);
      manifest_crosslink(nrid, &ctrl, MC_PERMIT_HOOKS);
      assert( blob_is_reset(&ctrl) );

  g.zLogin = fossil_strdup(zUser);

  /* Set the capabilities */
  login_set_capabilities(zCap, 0);
  login_anon_once = 1;
  login_set_anon_nobody_capabilities();
}

/*
** Return true if the user is "nobody"
*/
int login_is_nobody(void){
  return g.zLogin==0 || g.zLogin[0]==0 || fossil_strcmp(g.zLogin,"nobody")==0;
}

/*
** Return the login name.  If no login name is specified, return "nobody".
*/
const char *login_name(void){
  return (g.zLogin && g.zLogin[0]) ? g.zLogin : "nobody";
}

/*
** Call this routine when the credential check fails.  It causes
** a redirect to the "login" page.
*/
void login_needed(void){
#ifdef FOSSIL_ENABLE_JSON

*/
#define GLOBAL_URL()      ((UrlData *)(&g.urlIsFile))

struct Global {
  int argc; char **argv;  /* Command-line arguments to the program */
  char *nameOfExe;        /* Full path of executable. */
  const char *zErrlog;    /* Log errors to this file, if not NULL */
  int isConst;            /* True if the output is unchanging & cacheable */
  const char *zVfsName;   /* The VFS to use for database connections */
  sqlite3 *db;            /* The connection to the databases */
  sqlite3 *dbConfig;      /* Separate connection for global_config table */
  int useAttach;          /* True if global_config is attached to repository */
  const char *zConfigDbName;/* Path of the config database. NULL if not open */
  sqlite3_int64 now;      /* Seconds since 1970 */
  int repositoryOpen;     /* True if the main repository database is open */

  char *urlCanonical;     /* Canonical representation of the URL */
  char *urlProxyAuth;     /* Proxy-Authorizer: string */
  char *urlFossil;        /* The fossil query parameter on ssh: */
  unsigned urlFlags;      /* Boolean flags controlling URL processing */
  int useProxy;           /* Used to remember that a proxy is in use */
  char *proxyUrlPath;
  int proxyOrigPort;      /* Tunneled port number for https through proxy */
  const char *zLogin;     /* Login name.  NULL or "" if not logged in. */
  const char *zSSLIdentity;  /* Value of --ssl-identity option, filename of
                             ** SSL client identity */
  int useLocalauth;       /* No login required if from 127.0.0.1 */
  int noPswd;             /* Logged in without password (on 127.0.0.1) */
  int userUid;            /* Integer user id */
  int isHuman;            /* True if access by a human, not a spider or bot */

        for(jj=0; zAltRepo[jj] && zAltRepo[jj]!=':'; jj++){}
        if( zAltRepo[jj]==':' ){
          zAltRepo[jj] = 0;
          zAltRepo += jj+1;
        }else{
          zUser = "nobody";
        }
        if( g.zLogin==0 || g.zLogin[0]==0 ) zUser = "nobody";
        if( zAltRepo[0]!='/' ){
          zAltRepo = mprintf("%s/../%s", g.zRepositoryName, zAltRepo);
          file_simplify_name(zAltRepo, -1, 0);
        }
        db_close(1);
        db_open_repository(zAltRepo);
        login_as_user(zUser);

  Th_Store("release_version", RELEASE_VERSION);
  Th_Store("manifest_version", MANIFEST_VERSION);
  Th_Store("manifest_date", MANIFEST_DATE);
  Th_Store("compiler_name", COMPILER_NAME);
  url_var("stylesheet", "css", "style.css");
  image_url_var("logo");
  image_url_var("background");
  if( !login_is_nobody() ){
    Th_Store("login", g.zLogin);
  }
  if( g.thTrace ) Th_Trace("BEGIN_HEADER_SCRIPT<br />\n", -1);
  Th_Render(zHeader);
  if( g.thTrace ) Th_Trace("END_HEADER<br />\n", -1);
  Th_Unstore("title");   /* Avoid collisions with ticket field names */
  cgi_destination(CGI_BODY);

** Append ad unit text if appropriate.
*/
static void style_ad_unit(void){
  const char *zAd;
  if( g.perm.Admin && db_get_boolean("adunit-omit-if-admin",0) ){
    return;
  }
  if( !login_is_nobody()
   && fossil_strcmp(g.zLogin,"anonymous")!=0
   && db_get_boolean("adunit-omit-if-user",0)
  ){
    return;
  }
  zAd = db_get("adunit", 0);
  if( zAd ) cgi_append_content(zAd, -1);
}

/*

  blob_appendf(&ctrl, "T %c%s%F %b",
               zTagtype[tagtype], zPrefix, zTagname, &uuid);
  if( tagtype>0 && zValue && zValue[0] ){
    blob_appendf(&ctrl, " %F\n", zValue);
  }else{
    blob_appendf(&ctrl, "\n");
  }
  blob_appendf(&ctrl, "U %F\n", zUserOvrd ? zUserOvrd : login_name());
  md5sum_blob(&ctrl, &cksum);
  blob_appendf(&ctrl, "Z %b\n", &cksum);
  nrid = content_put(&ctrl);
  manifest_crosslink(nrid, &ctrl, MC_PERMIT_HOOKS);
  assert( blob_is_reset(&ctrl) );
}

       "SELECT tkt_uuid FROM ticket WHERE tkt_uuid GLOB '%q*'", P("name")
    );
  }else{
    zUuid = db_text(0, "SELECT lower(hex(randomblob(20)))");
  }
  *(const char**)pUuid = zUuid;
  blob_appendf(&tktchng, "K %s\n", zUuid);
  blob_appendf(&tktchng, "U %F\n", login_name());
  md5sum_blob(&tktchng, &cksum);
  blob_appendf(&tktchng, "Z %b\n", &cksum);
  if( nJ==0 ){
    blob_reset(&tktchng);
    return TH_OK;
  }
  if( g.zPath[0]=='d' ){

  if( g.zPath[0]=='d' ) showAllFields();
  form_begin(0, "%R/%s", g.zPath);
  login_insert_csrf_secret();
  if( P("date_override") && g.perm.Setup ){
    @ <input type="hidden" name="date_override" value="%h(P("date_override"))">
  }
  zScript = ticket_newpage_code();
  Th_Store("login", login_name());
  Th_Store("date", db_text(0, "SELECT datetime('now')"));
  Th_CreateCommand(g.interp, "submit_ticket", submitTicketCmd,
                   (void*)&zNewUuid, 0);
  if( g.thTrace ) Th_Trace("BEGIN_TKTNEW_SCRIPT<br />\n", -1);
  if( Th_Render(zScript)==TH_RETURN && !g.thTrace && zNewUuid ){
    cgi_redirect(mprintf("%s/tktview/%s", g.zTop, zNewUuid));
    return;

  initializeVariablesFromCGI();
  initializeVariablesFromDb();
  if( g.zPath[0]=='d' ) showAllFields();
  form_begin(0, "%R/%s", g.zPath);
  @ <input type="hidden" name="name" value="%s(zName)" />
  login_insert_csrf_secret();
  zScript = ticket_editpage_code();
  Th_Store("login", login_name());
  Th_Store("date", db_text(0, "SELECT datetime('now')"));
  Th_CreateCommand(g.interp, "append_field", appendRemarkCmd, 0, 0);
  Th_CreateCommand(g.interp, "submit_ticket", submitTicketCmd, (void*)&zName,0);
  if( g.thTrace ) Th_Trace("BEGIN_TKTEDIT_SCRIPT<br />\n", -1);
  if( Th_Render(zScript)==TH_RETURN && !g.thTrace && zName ){
    cgi_redirect(mprintf("%s/tktview/%s", g.zTop, zName));
    return;

  const char *zTktUuid;

  /* do some ints, we want to be inside a checkout */
  db_find_and_open_repository(0, 0);
  user_select();

  zUser = find_option("user-override",0,1);
  if( zUser==0 ) zUser = login_name();
  zDate = find_option("date-override",0,1);
  if( zDate==0 ) zDate = "now";
  zDate = date_in_standard_format(zDate);
  zTktUuid = find_option("uuid-override",0,1);
  if( zTktUuid && (strlen(zTktUuid)!=40 || !validate16(zTktUuid,40)) ){
    fossil_fatal("invalid --uuid-override: must be 40 characters of hex");
  }

        blob_appendf(&wiki, "N %s\n", zMimetype);
      }
      if( rid ){
        char *zUuid = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", rid);
        blob_appendf(&wiki, "P %s\n", zUuid);
        free(zUuid);
      }
      if( !login_is_nobody() ){
        blob_appendf(&wiki, "U %F\n", login_name());
      }
      blob_appendf(&wiki, "W %d\n%s\n", strlen(zBody), zBody);
      md5sum_blob(&wiki, &cksum);
      blob_appendf(&wiki, "Z %b\n", &cksum);
      blob_reset(&cksum);
      wiki_put(&wiki, 0);
    }

  zDate = db_text(0, "SELECT datetime('now')");
  zRemark = PD("r","");
  zUser = PD("u",g.zLogin);
  if( fossil_strcmp(zMimetype, "text/x-fossil-wiki")==0 ){
    zId = db_text(0, "SELECT lower(hex(randomblob(8)))");
    blob_appendf(p, "\n\n<hr><div id=\"%s\"><i>On %s UTC %h",
      zId, zDate, login_name());
    if( zUser[0] && fossil_strcmp(zUser,login_name()) ){
      blob_appendf(p, " (claiming to be %h)", zUser);
    }
    blob_appendf(p, " added:</i><br />\n%s</div id=\"%s\">", zRemark, zId);
  }else if( fossil_strcmp(zMimetype, "text/x-markdown")==0 ){
    blob_appendf(p, "\n\n------\n*On %s UTC %h", zDate, login_name());
    if( zUser[0] && fossil_strcmp(zUser,login_name()) ){
      blob_appendf(p, " (claiming to be %h)", zUser);
    }
    blob_appendf(p, " added:*\n\n%s\n", zRemark);
  }else{
    blob_appendf(p, "\n\n------------------------------------------------\n"
                    "On %s UTC %s", zDate, login_name());
    if( zUser[0] && fossil_strcmp(zUser,login_name()) ){
      blob_appendf(p, " (claiming to be %s)", zUser);
    }
    blob_appendf(p, " added:\n\n%s\n", zRemark);
  }
  fossil_free(zDate);
}

        blob_appendf(&wiki, "N %s\n", zMimetype);
      }
      if( rid ){
        char *zUuid = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", rid);
        blob_appendf(&wiki, "P %s\n", zUuid);
        free(zUuid);
      }
      if( !login_is_nobody() ){
        blob_appendf(&wiki, "U %F\n", login_name());
      }
      appendRemark(&body, zMimetype);
      blob_appendf(&wiki, "W %d\n%s\n", blob_size(&body), blob_str(&body));
      md5sum_blob(&wiki, &cksum);
      blob_appendf(&wiki, "Z %b\n", &cksum);
      blob_reset(&cksum);
      wiki_put(&wiki, rid);

  blob_appendf(&wiki, "L %F\n", zPageName );
  if( rid ){
    zUuid = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", rid);
    blob_appendf(&wiki, "P %s\n", zUuid);
    free(zUuid);
  }
  user_select();
  if( !login_is_nobody() ){
      blob_appendf(&wiki, "U %F\n", login_name());
  }
  blob_appendf( &wiki, "W %d\n%s\n", blob_size(pContent),
                blob_str(pContent) );
  md5sum_blob(&wiki, &cksum);
  blob_appendf(&wiki, "Z %b\n", &cksum);
  blob_reset(&cksum);
  db_begin_transaction();