Version 0.1.7

1 files changed, 1803 insertions, 0 deletions

diff --git a/cgitcgi/ctx.c b/cgitcgi/ctx.c
new file mode 100644
index 0000000..f5f00aa
--- /dev/null
+++ b/cgitcgi/ctx.c
@@ -0,0 +1,1803 @@
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/sysinfo.h>
+#include <sys/types.h>
+#ifdef HAVE_INTTYPES_H
+#include <inttypes.h>
+#else
+#include <stdint.h>
+#endif
+#include <stddef.h>   /* offsetof(3)   */
+#include <dirent.h>
+#include <sys/stat.h> /* chmod(2)      */
+#include <sys/file.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <string.h>   /* strdup(3)     */
+#include <strings.h>  /* strcasecmp(3) */
+#include <libgen.h>   /* basename(3)   */
+#include <ctype.h>    /* tolower(3)    */
+#include <errno.h>
+#include <time.h>
+#include <sys/time.h>
+#include <pwd.h>
+#include <grp.h>
+#include <stdarg.h>
+#include <locale.h>
+#include <unistd.h>
+
+#include <git2.h>
+
+#include <nls.h>
+
+#include <defs.h>
+
+#include <fatal.h>
+#include <http.h>
+#include <html.h>
+
+#include <dlist.h>
+#include <strbuf.h>
+#include <repolist.h>
+#include <wrapper.h>
+#include <system.h>
+#include <date.h>
+
+#include <ctx.h>
+
+#include <git-shared.h>
+#include <ui-shared.h>
+
+
+/* Allocate memory in .bss segment: */
+static struct __context mctx;
+
+/* Share address of __context: */
+struct __context *pmctx = &mctx;
+
+void __mctx_init( void )
+{
+  pmctx->_cur_brk = (void *)&((pmctx->_mem)[0]);
+}
+
+static int
+__brk( void *end_d )
+{
+  void *ptr = __mem;
+
+  if( (unsigned char *)end_d < (unsigned char *)ptr ||
+      (unsigned char *)end_d > (unsigned char *)ptr + CONTEXT_MEM_SIZE )
+  {
+    errno = ENOMEM;
+    return( -1 );
+  }
+
+ /*
+   __cur_brk = (unsigned char *)end_d;
+
+   Функция  __brk()  лишь проверяет границы
+   области памяти, значение __cur_brk выставляется
+   в __sbrk() .
+  *************************************************/
+
+  return( 0 );
+
+} /* End of __brk() */
+
+void *
+__sbrk( int incr )
+{
+  void         *ptr = __cur_brk;
+  register int  rc;
+
+  if( incr == 0 ) return( ptr );
+
+  rc = __brk( ptr + incr );
+  if( rc == -1 )
+  {
+    /* errno is set into __brk() */
+    return( (void *)0 );
+  }
+
+  __cur_brk = ((unsigned char *)ptr) + (int)incr;
+
+  return( ptr );
+
+} /* End of __sbrk() */
+
+
+struct cgit_context ctx;
+
+const char *ptype_repolist   = "repolist";
+const char *ptype_repo       = "repo";
+
+void cgit_prepare_context( void )
+{
+  memset( &ctx, 0, sizeof(ctx) );
+
+  ctx.env.http_host = getenv("HTTP_HOST");
+  ctx.env.https = getenv("HTTPS");
+  ctx.env.no_http = getenv("NO_HTTP");
+  ctx.env.path_info = getenv("PATH_INFO");
+  ctx.env.query_string = getenv("QUERY_STRING");
+  ctx.env.request_uri = getenv("REQUEST_URI");
+
+  if( ctx.env.request_uri == NULL )
+    ctx.env.request_uri = "/";
+
+  ctx.env.request_scheme = getenv("REQUEST_SCHEME");
+  ctx.env.request_method = getenv("REQUEST_METHOD");
+  ctx.env.script_name = getenv("SCRIPT_NAME");
+  ctx.env.server_name = getenv("SERVER_NAME");
+  ctx.env.server_port = getenv("SERVER_PORT");
+  ctx.env.http_cookie = getenv("HTTP_COOKIE");
+  ctx.env.content_lenght = getenv("CONTENT_LENGTH") ? strtoul(getenv("CONTENT_LENGTH"), NULL, 10) : 0;
+  ctx.env.http_root = NULL;
+  ctx.env.authenticated = 0;
+
+  ctx.query.ofs = 0;
+  ctx.query.rev = "0";
+  ctx.query.revision = NULL;
+  ctx.query.operation = NULL;
+  ctx.query.search = NULL;
+
+  ctx.page.mimetype = "text/html";
+  ctx.page.charset = "UTF-8";
+  ctx.page.size = 0;
+  ctx.page.modified = time(NULL);
+  ctx.page.expires = ctx.page.modified + 5 * 60;
+  ctx.page.status = 200;
+  ctx.page.status_message = "OK";
+  ctx.page.header = "/.cgit/html/header.html";
+  ctx.page.footer = "/.cgit/html/footer.html";
+
+  ctx.vars.css = "/.cgit/css/cgit.css";
+  ctx.vars.owner = "Andrey V.Kosteltsev";
+  ctx.vars.author = "Andrey V.Kosteltsev";
+  ctx.vars.description = "Git repositories hosted at Solar System, Earth";
+  ctx.vars.keywords = "cGit repositories";
+  ctx.vars.title = "Git Repositories";
+  ctx.vars.favicon_path = "/.cgit/pixmaps/favicon";
+  ctx.vars.syntax_highlight_css = "_cgit.css";
+  ctx.vars.logo = "/.cgit/pixmaps/cgit-banner-280x280.png";
+  ctx.vars.logo_alt = "Example.org";
+  ctx.vars.logo_link = "https://example.org";
+  ctx.vars.home_page = "https://example.org";
+  ctx.vars.snapshots = "tar.xz";
+  ctx.vars.status_line = "Git Repositories";
+  ctx.vars.main_menu_logo = "/.cgit/pixmaps/logo/git-logo-white-256x256.svg";
+  ctx.vars.main_menu_item = "<a href='/'>Index</a>";
+  ctx.vars.left_menu_items = "";
+  ctx.vars.popup_menu_items = "<div class='item'><span class='icon las la-home'></span><a href='https://example.org/' target='_blank'>Home page</a></div>";
+  ctx.vars.right_menu_items = "<div class='item'><a href='https://example.org/' target='_blank'>Home page</a></div>";
+  ctx.vars.copyright_notice = "By using any website materials you agree to indicate source.";
+  ctx.vars.copyright = "&#169; 2022 Andrey V.Kosteltsev. All Rights Reserved.";
+  ctx.vars.page_type = ptype_repolist;
+  ctx.vars.page_size = "200";
+  ctx.vars.num_of_repos = "0";
+
+  ctx.repo.name = NULL;
+  ctx.repo.info = CGIT_INFO_INIT;
+  ctx.repo.git_root = NULL;
+  ctx.repo.repo_root = NULL;
+  ctx.repo.relative_path = NULL;
+  ctx.repo.relative_info = CGIT_INFO_INIT;
+  ctx.repo.relative_html = NULL;
+  ctx.repo.relative_href = "/";
+  ctx.repo.search_placeholder = "repository...";
+  ctx.repo.trunk = "master";
+  ctx.repo.clone_prefix = NULL;
+  ctx.repo.clone_ro_prefix = NULL;
+  ctx.repo.nbranches = 0;
+  ctx.repo.ncommits = 0;
+  ctx.repo.ntags = 0;
+
+  ctx.promo.analytic_links   = NULL;
+  ctx.promo.analytic_scripts = NULL;
+  ctx.promo.donate           = 0;
+  ctx.promo.donate_css       = NULL;
+  ctx.promo.donate_html      = NULL;
+  ctx.promo.donate_js        = NULL;
+  ctx.promo.donate_header    = NULL;
+  ctx.promo.donate_purpose   = NULL;
+
+  ctx.vers.git   = NULL;
+  ctx.vers.nginx = NULL;
+  ctx.vers.cgit  = PROGRAM_VERSION;
+}
+
+void cgit_prepare_template_variables( void )
+{
+  envtab_install( &strbuf_envtab, "css", ctx.vars.css, fatal_html );
+  envtab_install( &strbuf_envtab, "owner", ctx.vars.owner, fatal_html );
+  envtab_install( &strbuf_envtab, "author", ctx.vars.author, fatal_html );
+  envtab_install( &strbuf_envtab, "description", ctx.vars.description, fatal_html );
+  envtab_install( &strbuf_envtab, "keywords", ctx.vars.keywords, fatal_html );
+  envtab_install( &strbuf_envtab, "title", ctx.vars.title, fatal_html );
+  envtab_install( &strbuf_envtab, "favicon-path", ctx.vars.favicon_path, fatal_html );
+  envtab_install( &strbuf_envtab, "syntax-highlight-css", ctx.vars.syntax_highlight_css, fatal_html );
+  envtab_install( &strbuf_envtab, "logo", ctx.vars.logo, fatal_html );
+  envtab_install( &strbuf_envtab, "logo-alt", ctx.vars.logo_alt, fatal_html );
+  envtab_install( &strbuf_envtab, "logo-link", ctx.vars.logo_link, fatal_html );
+  envtab_install( &strbuf_envtab, "home-page", ctx.vars.home_page, fatal_html );
+  envtab_install( &strbuf_envtab, "snapshots", ctx.vars.snapshots, fatal_html );
+  envtab_install( &strbuf_envtab, "status-line", ctx.vars.status_line, fatal_html );
+  envtab_install( &strbuf_envtab, "main-menu-logo", ctx.vars.main_menu_logo, fatal_html );
+  envtab_install( &strbuf_envtab, "main-menu-item", ctx.vars.main_menu_item, fatal_html );
+  envtab_install( &strbuf_envtab, "left-menu-items", ctx.vars.left_menu_items, fatal_html );
+  envtab_install( &strbuf_envtab, "popup-menu-items", ctx.vars.popup_menu_items, fatal_html );
+  envtab_install( &strbuf_envtab, "right-menu-items", ctx.vars.right_menu_items, fatal_html );
+
+  envtab_install( &strbuf_envtab, "relative-html", ctx.repo.relative_html, fatal_html );
+  envtab_install( &strbuf_envtab, "search-placeholder", ctx.repo.search_placeholder, fatal_html );
+
+  envtab_install( &strbuf_envtab, "analytic-links", ctx.promo.analytic_links, fatal_html );
+  envtab_install( &strbuf_envtab, "analytic-scripts", ctx.promo.analytic_scripts, fatal_html );
+  envtab_install( &strbuf_envtab, "donate-css", ctx.promo.donate_css, fatal_html );
+  envtab_install( &strbuf_envtab, "donate-html", ctx.promo.donate_html, fatal_html );
+  envtab_install( &strbuf_envtab, "donate-js", ctx.promo.donate_js, fatal_html );
+  envtab_install( &strbuf_envtab, "donate-header", ctx.promo.donate_header, fatal_html );
+  envtab_install( &strbuf_envtab, "donate-purpose", ctx.promo.donate_purpose, fatal_html );
+
+  envtab_install( &strbuf_envtab, "git-version", ctx.vers.git, fatal_html );
+  envtab_install( &strbuf_envtab, "nginx-version", ctx.vers.nginx, fatal_html );
+  envtab_install( &strbuf_envtab, "cgit-version", ctx.vers.cgit, fatal_html );
+
+  envtab_install( &strbuf_envtab, "copyright-notice", ctx.vars.copyright_notice, fatal_html );
+  envtab_install( &strbuf_envtab, "copyright", ctx.vars.copyright, fatal_html );
+
+  envtab_install( &strbuf_envtab, "page-type", ctx.vars.page_type, fatal_html );
+  envtab_install( &strbuf_envtab, "page-size", ctx.vars.page_size, fatal_html );
+  envtab_install( &strbuf_envtab, "num-of-repos", ctx.vars.num_of_repos, fatal_html );
+}
+
+void cgit_release_template_variables( void )
+{
+  envtab_release( &strbuf_envtab );
+}
+
+static void get_selfdir( void )
+{
+  char    path[PATH_MAX];
+  ssize_t len;
+
+  bzero( (void *)path, PATH_MAX );
+
+  len = readlink( "/proc/self/exe", &path[0], (size_t)PATH_MAX );
+  if( len > 0 && len < PATH_MAX )
+  {
+    char *selfdir = NULL;
+
+    selfdir = (char *)__sbrk( (int)len + 1 );
+    strcpy( selfdir, (const char *)dirname( (char *)&path[0] ) );
+    ctx.env.http_root = selfdir;
+  }
+  else
+    fatal_html( "cannot get selfdir" );
+}
+
+static size_t read_http_root_raw_file( struct strbuf *sb, const char *fname )
+{
+  char    path[PATH_MAX];
+  int     fd = -1;
+  size_t  len = 0;
+
+  if( !sb || !fname || !*fname ) return len;
+
+  bzero( (void *)path, PATH_MAX );
+  strcpy( (char *)&path[0], ctx.env.http_root );
+  if( *fname != '/' )
+    strcat( (char *)&path[0], "/" );
+
+  strcat( (char *)&path[0], fname );
+
+  if( (fd = open( (const char *)&path[0], O_RDONLY )) == -1 )
+   fatal_html( "Cannot open %s file: %s", fname, strerror( errno ) );
+
+  len = strbuf_read( sb, fd, 0 );
+  close( fd );
+
+  return len;
+}
+
+static size_t read_http_root_env_file( struct strbuf *sb, const char *fname )
+{
+  char    path[PATH_MAX];
+  FILE   *fp = NULL;
+  size_t  len = 0;
+
+  if( !sb || !fname || !*fname ) return len;
+
+  bzero( (void *)path, PATH_MAX );
+  strcpy( (char *)&path[0], ctx.env.http_root );
+  if( *fname != '/' )
+    strcat( (char *)&path[0], "/" );
+
+  strcat( (char *)&path[0], fname );
+
+  if( (fp = fopen( (const char *)&path[0], "r" )) == NULL )
+   fatal_html( "Cannot open %s file: %s", fname, strerror( errno ) );
+
+  len = strbuf_env_fread( sb, fp );
+  fclose( fp );
+
+  if( len > STRBUF_MAXLINE )
+    fatal_html( "The '%s' file is too large. No more than 8192 bytes is allowed for includes", fname );
+
+  return len;
+}
+
+static void read_donate_html( void )
+{
+  struct strbuf buf = STRBUF_INIT;
+  char  *html = NULL;
+
+  if( !ctx.promo.donate ) return;
+  if( !ctx.promo.donate_html || !*ctx.promo.donate_html ) return;
+
+  (void)read_http_root_env_file( &buf, ctx.promo.donate_html );
+
+  html = (char *)__sbrk( (int)buf.len + 1 );
+  memcpy( (void *)html, (const void *)buf.buf, buf.len + 1 );
+  ctx.promo.donate_html = (const char *)html;
+  strbuf_release( &buf );
+}
+
+
+static char psize[4] = { 0, 0, 0, 0 };
+
+static void ctx_page_size_from_global( void )
+{
+  struct variable f = { (unsigned char *)"page-size", { 0 }, DT_NUMERICAL }, *var = NULL;
+  var = lookup_global( lookup_global_section( config ), &f );
+  if( var )
+  {
+    if( var->type == DT_NUMERICAL )
+    {
+      if( var->_v.val > 9 && var->_v.val < 201 )
+        snprintf( &psize[0], 4, "%d", var->_v.val );
+      else
+        snprintf( &psize[0], 4, "%d", 200 );
+      ctx.vars.page_size = &psize[0];
+    }
+    else
+    {
+      int size = 0;
+      sscanf( (const char *)var->_v.vptr, "%d", &size );
+      if( size > 9 && size < 201 )
+        ctx.vars.page_size = (const char *)var->_v.vptr;
+      else
+      {
+        snprintf( &psize[0], 4, "%d", 200 );
+        ctx.vars.page_size = &psize[0];
+      }
+    }
+  }
+}
+
+static void ctx_page_size_from_repo( struct repo *repo )
+{
+  struct variable f = { (unsigned char *)"page-size", { 0 }, DT_NUMERICAL }, *var = NULL;
+  var = lookup( repo, &f );
+  if( var )
+  {
+    if( var->type == DT_NUMERICAL )
+    {
+      if( var->_v.val > 9 && var->_v.val < 201 )
+        snprintf( &psize[0], 4, "%d", var->_v.val );
+      else
+        snprintf( &psize[0], 4, "%d", 200 );
+      ctx.vars.page_size = &psize[0];
+    }
+    else
+    {
+      int size = 0;
+      sscanf( (const char *)var->_v.vptr, "%d", &size );
+      if( size > 9 && size < 201 )
+        ctx.vars.page_size = (const char *)var->_v.vptr;
+      else
+      {
+        snprintf( &psize[0], 4, "%d", 200 );
+        ctx.vars.page_size = &psize[0];
+      }
+    }
+  }
+}
+
+static void ctx_repo_dirs_from_global( void )
+{
+  struct variable  git_root  = { (unsigned char *)"git-root",  { 0 }, DT_PATH };
+  struct variable  repo_root = { (unsigned char *)"repo-root", { 0 }, DT_PATH };
+  struct variable  trunk     = { (unsigned char *)"trunk",     { 0 }, DT_PATH };
+  struct variable  ro_prefix = { (unsigned char *)"clone-prefix-readonly", { 0 }, DT_PATH };
+  struct variable  rw_prefix = { (unsigned char *)"clone-prefix",          { 0 }, DT_PATH };
+  struct variable *var = NULL;
+
+  var = lookup_global( lookup_global_section( config ), &git_root );
+  if( var )
+  {
+    ctx.repo.git_root = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &repo_root );
+  if( var )
+  {
+    ctx.repo.repo_root = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &trunk );
+  if( var )
+  {
+    ctx.repo.trunk = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &rw_prefix );
+  if( var )
+  {
+    ctx.repo.clone_prefix = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &ro_prefix );
+  if( var )
+  {
+    ctx.repo.clone_ro_prefix = (const char *)var->_v.vptr;
+  }
+}
+
+static void ctx_site_vars_from_global( void )
+{
+  struct variable                   css = { (unsigned char *)"css",                  { 0 }, DT_PATH };
+  struct variable                 owner = { (unsigned char *)"owner",                { 0 }, DT_STRING };
+  struct variable                author = { (unsigned char *)"author",               { 0 }, DT_STRING };
+  struct variable                 title = { (unsigned char *)"title",                { 0 }, DT_STRING };
+  struct variable           description = { (unsigned char *)"description",          { 0 }, DT_STRING };
+  struct variable              keywords = { (unsigned char *)"keywords",             { 0 }, DT_STRING };
+  struct variable      copyright_notice = { (unsigned char *)"copyright-notice",     { 0 }, DT_STRING };
+  struct variable             copyright = { (unsigned char *)"copyright",            { 0 }, DT_STRING };
+  struct variable          favicon_path = { (unsigned char *)"favicon-path",         { 0 }, DT_PATH   };
+  struct variable                  logo = { (unsigned char *)"logo",                 { 0 }, DT_PATH   };
+  struct variable              logo_alt = { (unsigned char *)"logo-alt",             { 0 }, DT_STRING };
+  struct variable             logo_link = { (unsigned char *)"logo-link",            { 0 }, DT_STRING };
+  struct variable             home_page = { (unsigned char *)"home-page",            { 0 }, DT_STRING };
+  struct variable             snapshots = { (unsigned char *)"snapshots",            { 0 }, DT_PATH   };
+  struct variable        main_menu_logo = { (unsigned char *)"main-menu-logo",       { 0 }, DT_PATH   };
+  struct variable  syntax_highlight_css = { (unsigned char *)"syntax-highlight-css", { 0 }, DT_PATH   };
+  struct variable *var = NULL;
+
+  var = lookup_global( lookup_global_section( config ), &css );
+  if( var )
+  {
+    ctx.vars.css = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &owner );
+  if( var )
+  {
+    ctx.vars.owner = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &author );
+  if( var )
+  {
+    ctx.vars.author = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &title );
+  if( var )
+  {
+    ctx.vars.title = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &description );
+  if( var )
+  {
+    ctx.vars.description = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &keywords );
+  if( var )
+  {
+    ctx.vars.keywords = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &copyright_notice );
+  if( var )
+  {
+    ctx.vars.copyright_notice = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &copyright );
+  if( var )
+  {
+    ctx.vars.copyright = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &favicon_path );
+  if( var )
+  {
+    ctx.vars.favicon_path = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &logo );
+  if( var )
+  {
+    ctx.vars.logo = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &logo_alt );
+  if( var )
+  {
+    ctx.vars.logo_alt = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &logo_link );
+  if( var )
+  {
+    ctx.vars.logo_link = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &home_page );
+  if( var )
+  {
+    ctx.vars.home_page = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &snapshots );
+  if( var )
+  {
+    ctx.vars.snapshots = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &main_menu_logo );
+  if( var )
+  {
+    ctx.vars.main_menu_logo = (const char *)var->_v.vptr;
+  }
+  var = lookup_global( lookup_global_section( config ), &syntax_highlight_css );
+  if( var )
+  {
+    ctx.vars.syntax_highlight_css = (const char *)var->_v.vptr;
+  }
+}
+
+static void ctx_promo_vars_from_global( void )
+{
+  struct variable  analytic_links   = { (unsigned char *)"analytic-links",   { 0 }, DT_PATH      };
+  struct variable  analytic_scripts = { (unsigned char *)"analytic-scripts", { 0 }, DT_PATH      };
+  struct variable  donate           = { (unsigned char *)"donate",           { 0 }, DT_NUMERICAL };
+  struct variable  donate_css       = { (unsigned char *)"donate-css",       { 0 }, DT_PATH      };
+  struct variable  donate_html      = { (unsigned char *)"donate-html",      { 0 }, DT_PATH      };
+  struct variable  donate_js        = { (unsigned char *)"donate-js",        { 0 }, DT_PATH      };
+  struct variable  donate_header    = { (unsigned char *)"donate-header",    { 0 }, DT_STRING    };
+  struct variable  donate_purpose   = { (unsigned char *)"donate-purpose",   { 0 }, DT_STRING    };
+  struct variable *var = NULL;
+
+  var = lookup_global( lookup_global_section( config ), &analytic_links );
+  if( var )
+  {
+    ctx.promo.analytic_links = (const char *)var->_v.vptr;
+
+    if( ctx.promo.analytic_links && *ctx.promo.analytic_links )
+    {
+      struct strbuf buf = STRBUF_INIT;
+      char  *links = NULL;
+
+      (void)read_http_root_raw_file( &buf, ctx.promo.analytic_links );
+
+      links = (char *)__sbrk( (int)buf.len + 1 );
+      memcpy( (void *)links, (const void *)buf.buf, buf.len + 1 );
+      ctx.promo.analytic_links = (const char *)links;
+      strbuf_release( &buf );
+    }
+  }
+  var = lookup_global( lookup_global_section( config ), &analytic_scripts );
+  if( var )
+  {
+    ctx.promo.analytic_scripts = (const char *)var->_v.vptr;
+
+    if( ctx.promo.analytic_scripts && *ctx.promo.analytic_scripts )
+    {
+      struct strbuf buf = STRBUF_INIT;
+      char  *scripts = NULL;
+
+      (void)read_http_root_raw_file( &buf, ctx.promo.analytic_scripts );
+
+      scripts = (char *)__sbrk( (int)buf.len + 1 );
+      memcpy( (void *)scripts, (const void *)buf.buf, buf.len + 1 );
+      ctx.promo.analytic_scripts = (const char *)scripts;
+      strbuf_release( &buf );
+    }
+  }
+
+  var = lookup_global( lookup_global_section( config ), &donate );
+  if( var )
+  {
+    if( var->type == DT_NUMERICAL )
+    {
+      ctx.promo.donate = var->_v.val;
+      if( ctx.promo.donate )
+        ctx.promo.donate = 1;
+    }
+  }
+
+  if( ctx.promo.donate )
+  {
+    var = lookup_global( lookup_global_section( config ), &donate_css );
+    if( var )
+    {
+      ctx.promo.donate_css = (const char *)var->_v.vptr;
+
+      if( ctx.promo.donate_css && *ctx.promo.donate_css )
+      {
+        struct strbuf buf = STRBUF_INIT;
+        char  *css = NULL;
+
+        strbuf_addf( &buf, "<link rel=\"stylesheet\" href=\"%s\">", ctx.promo.donate_css );
+        strbuf_trim( &buf );
+        css = (char *)__sbrk( (int)buf.len + 1 );
+        memcpy( (void *)css, (const void *)buf.buf, buf.len + 1 );
+        ctx.promo.donate_css = (const char *)css;
+        strbuf_release( &buf );
+      }
+    }
+    var = lookup_global( lookup_global_section( config ), &donate_js );
+    if( var )
+    {
+      ctx.promo.donate_js = (const char *)var->_v.vptr;
+
+      if( ctx.promo.donate_js && *ctx.promo.donate_js )
+      {
+        struct strbuf buf = STRBUF_INIT;
+        char  *js = NULL;
+
+        strbuf_addf( &buf, "<script src=\"%s\"></script>", ctx.promo.donate_js );
+        strbuf_trim( &buf );
+        js = (char *)__sbrk( (int)buf.len + 1 );
+        memcpy( (void *)js, (const void *)buf.buf, buf.len + 1 );
+        ctx.promo.donate_js = (const char *)js;
+        strbuf_release( &buf );
+      }
+    }
+    var = lookup_global( lookup_global_section( config ), &donate_header );
+    if( var )
+    {
+      ctx.promo.donate_header = (const char *)var->_v.vptr;
+    }
+    var = lookup_global( lookup_global_section( config ), &donate_purpose );
+    if( var )
+    {
+      ctx.promo.donate_purpose = (const char *)var->_v.vptr;
+    }
+
+    var = lookup_global( lookup_global_section( config ), &donate_html );
+    if( var )
+    {
+      ctx.promo.donate_html = (const char *)var->_v.vptr;
+
+      if( ctx.promo.donate_html && *ctx.promo.donate_html )
+      {
+        envtab_install( &strbuf_envtab, "donate-header", ctx.promo.donate_header, fatal_html );
+        envtab_install( &strbuf_envtab, "donate-purpose", ctx.promo.donate_purpose, fatal_html );
+        read_donate_html();
+        envtab_release( &strbuf_envtab );
+      }
+    }
+  }
+}
+
+static void ctx_repo_dirs_from_repo( struct repo *repo )
+{
+  struct variable  git_root  = { (unsigned char *)"git-root",  { 0 }, DT_PATH };
+  struct variable  repo_root = { (unsigned char *)"repo-root", { 0 }, DT_PATH };
+  struct variable  trunk     = { (unsigned char *)"trunk",     { 0 }, DT_PATH };
+  struct variable  ro_prefix = { (unsigned char *)"clone-prefix-readonly", { 0 }, DT_PATH };
+  struct variable  rw_prefix = { (unsigned char *)"clone-prefix",          { 0 }, DT_PATH };
+  struct variable *var = NULL;
+
+  if( !repo ) return;
+
+  var = lookup( repo, &git_root );
+  if( var )
+  {
+    ctx.repo.git_root = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &repo_root );
+  if( var )
+  {
+    ctx.repo.repo_root = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &trunk );
+  if( var )
+  {
+    ctx.repo.trunk = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &rw_prefix );
+  if( var )
+  {
+    ctx.repo.clone_prefix = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &ro_prefix );
+  if( var )
+  {
+    ctx.repo.clone_ro_prefix = (const char *)var->_v.vptr;
+  }
+}
+
+static void ctx_site_vars_from_repo( struct repo *repo )
+{
+  struct variable                   css = { (unsigned char *)"css",                  { 0 }, DT_PATH   };
+  struct variable                 owner = { (unsigned char *)"owner",                { 0 }, DT_STRING };
+  struct variable                author = { (unsigned char *)"author",               { 0 }, DT_STRING };
+  struct variable                 title = { (unsigned char *)"title",                { 0 }, DT_STRING };
+  struct variable           description = { (unsigned char *)"description",          { 0 }, DT_STRING };
+  struct variable              keywords = { (unsigned char *)"keywords",             { 0 }, DT_STRING };
+  struct variable      copyright_notice = { (unsigned char *)"copyright-notice",     { 0 }, DT_STRING };
+  struct variable             copyright = { (unsigned char *)"copyright",            { 0 }, DT_STRING };
+  struct variable          favicon_path = { (unsigned char *)"favicon-path",         { 0 }, DT_PATH   };
+  struct variable                  logo = { (unsigned char *)"logo",                 { 0 }, DT_PATH   };
+  struct variable              logo_alt = { (unsigned char *)"logo-alt",             { 0 }, DT_STRING };
+  struct variable             logo_link = { (unsigned char *)"logo-link",            { 0 }, DT_STRING };
+  struct variable             home_page = { (unsigned char *)"home-page",            { 0 }, DT_STRING };
+  struct variable             snapshots = { (unsigned char *)"snapshots",            { 0 }, DT_PATH   };
+  struct variable        main_menu_logo = { (unsigned char *)"main-menu-logo",       { 0 }, DT_PATH   };
+  struct variable  syntax_highlight_css = { (unsigned char *)"syntax-highlight-css", { 0 }, DT_PATH   };
+  struct variable *var = NULL;
+
+  if( !repo ) return;
+
+  var = lookup( repo, &css );
+  if( var )
+  {
+    ctx.vars.css = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &owner );
+  if( var )
+  {
+    ctx.vars.owner = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &author );
+  if( var )
+  {
+    ctx.vars.author = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &title );
+  if( var )
+  {
+    ctx.vars.title = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &description );
+  if( var )
+  {
+    ctx.vars.description = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &keywords );
+  if( var )
+  {
+    ctx.vars.keywords = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &copyright_notice );
+  if( var )
+  {
+    ctx.vars.copyright_notice = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &copyright );
+  if( var )
+  {
+    ctx.vars.copyright = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &favicon_path );
+  if( var )
+  {
+    ctx.vars.favicon_path = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &logo );
+  if( var )
+  {
+    ctx.vars.logo = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &logo_alt );
+  if( var )
+  {
+    ctx.vars.logo_alt = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &logo_link );
+  if( var )
+  {
+    ctx.vars.logo_link = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &home_page );
+  if( var )
+  {
+    ctx.vars.home_page = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &snapshots );
+  if( var )
+  {
+    ctx.vars.snapshots = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &main_menu_logo );
+  if( var )
+  {
+    ctx.vars.main_menu_logo = (const char *)var->_v.vptr;
+  }
+  var = lookup( repo, &syntax_highlight_css );
+  if( var )
+  {
+    ctx.vars.syntax_highlight_css = (const char *)var->_v.vptr;
+  }
+}
+
+static void ctx_promo_vars_from_repo( struct repo *repo )
+{
+  struct variable  analytic_links   = { (unsigned char *)"analytic-links",   { 0 }, DT_PATH      };
+  struct variable  analytic_scripts = { (unsigned char *)"analytic-scripts", { 0 }, DT_PATH      };
+  struct variable  donate           = { (unsigned char *)"donate",           { 0 }, DT_NUMERICAL };
+  struct variable  donate_css       = { (unsigned char *)"donate-css",       { 0 }, DT_PATH      };
+  struct variable  donate_html      = { (unsigned char *)"donate-html",      { 0 }, DT_PATH      };
+  struct variable  donate_js        = { (unsigned char *)"donate-js",        { 0 }, DT_PATH      };
+  struct variable  donate_header    = { (unsigned char *)"donate-header",    { 0 }, DT_STRING    };
+  struct variable  donate_purpose   = { (unsigned char *)"donate-purpose",   { 0 }, DT_STRING    };
+  struct variable *var = NULL;
+
+  /*
+    Analytics reads from global section only:
+   */
+  var = lookup_global( lookup_global_section( config ), &analytic_links );
+  if( var )
+  {
+    ctx.promo.analytic_links = (const char *)var->_v.vptr;
+
+    if( ctx.promo.analytic_links && *ctx.promo.analytic_links )
+    {
+      struct strbuf buf = STRBUF_INIT;
+      char  *links = NULL;
+
+      (void)read_http_root_raw_file( &buf, ctx.promo.analytic_links );
+
+      links = (char *)__sbrk( (int)buf.len + 1 );
+      memcpy( (void *)links, (const void *)buf.buf, buf.len + 1 );
+      ctx.promo.analytic_links = (const char *)links;
+      strbuf_release( &buf );
+    }
+  }
+  var = lookup_global( lookup_global_section( config ), &analytic_scripts );
+  if( var )
+  {
+    ctx.promo.analytic_scripts = (const char *)var->_v.vptr;
+
+    if( ctx.promo.analytic_scripts && *ctx.promo.analytic_scripts )
+    {
+      struct strbuf buf = STRBUF_INIT;
+      char  *scripts = NULL;
+
+      (void)read_http_root_raw_file( &buf, ctx.promo.analytic_scripts );
+
+      scripts = (char *)__sbrk( (int)buf.len + 1 );
+      memcpy( (void *)scripts, (const void *)buf.buf, buf.len + 1 );
+      ctx.promo.analytic_scripts = (const char *)scripts;
+      strbuf_release( &buf );
+    }
+  }
+
+  var = lookup( repo, &donate );
+  if( var )
+  {
+    if( var->type == DT_NUMERICAL )
+    {
+      ctx.promo.donate = var->_v.val;
+      if( ctx.promo.donate )
+        ctx.promo.donate = 1;
+    }
+  }
+
+  if( ctx.promo.donate )
+  {
+    var = lookup( repo, &donate_css );
+    if( var )
+    {
+      ctx.promo.donate_css = (const char *)var->_v.vptr;
+
+      if( ctx.promo.donate_css && *ctx.promo.donate_css )
+      {
+        struct strbuf buf = STRBUF_INIT;
+        char  *css = NULL;
+
+        strbuf_addf( &buf, "<link rel=\"stylesheet\" href=\"%s\">", ctx.promo.donate_css );
+        strbuf_trim( &buf );
+        css = (char *)__sbrk( (int)buf.len + 1 );
+        memcpy( (void *)css, (const void *)buf.buf, buf.len + 1 );
+        ctx.promo.donate_css = (const char *)css;
+        strbuf_release( &buf );
+      }
+    }
+    var = lookup( repo, &donate_js );
+    if( var )
+    {
+      ctx.promo.donate_js = (const char *)var->_v.vptr;
+
+      if( ctx.promo.donate_js && *ctx.promo.donate_js )
+      {
+        struct strbuf buf = STRBUF_INIT;
+        char  *js = NULL;
+
+        strbuf_addf( &buf, "<script src=\"%s\"></script>", ctx.promo.donate_js );
+        strbuf_trim( &buf );
+        js = (char *)__sbrk( (int)buf.len + 1 );
+        memcpy( (void *)js, (const void *)buf.buf, buf.len + 1 );
+        ctx.promo.donate_js = (const char *)js;
+        strbuf_release( &buf );
+      }
+    }
+    var = lookup( repo, &donate_header );
+    if( var )
+    {
+      ctx.promo.donate_header = (const char *)var->_v.vptr;
+    }
+    var = lookup( repo, &donate_purpose );
+    if( var )
+    {
+      ctx.promo.donate_purpose = (const char *)var->_v.vptr;
+    }
+    var = lookup( repo, &donate_html );
+    if( var )
+    {
+      ctx.promo.donate_html = (const char *)var->_v.vptr;
+
+      if( ctx.promo.donate_html && *ctx.promo.donate_html )
+      {
+        envtab_install( &strbuf_envtab, "donate-header", ctx.promo.donate_header, fatal_html );
+        envtab_install( &strbuf_envtab, "donate-purpose", ctx.promo.donate_purpose, fatal_html );
+        read_donate_html();
+        envtab_release( &strbuf_envtab );
+      }
+    }
+  }
+}
+
+
+
+static char nrepos[11] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+
+static void ctx_num_of_repos( void )
+{
+  int32_t  num = repolist_length( config );
+  num &= 0x7fffffff;
+  if( num > 0 )
+  {
+    snprintf( &nrepos[0], 11, "%d", num );
+    ctx.vars.num_of_repos = &nrepos[0];
+  }
+}
+
+static void ctx_repolist_status_line( void )
+{
+  struct strbuf buf = STRBUF_INIT;
+  char    *nrepos_string = NULL;
+  char    *status_line   = NULL;
+  int32_t  num = 0;
+
+  sscanf( ctx.vars.num_of_repos, "%d", &num );
+
+  strbuf_addf( &buf, Q_("%d Git Repository", "%d Git Repositories", num), num );
+  nrepos_string = (char *)__sbrk( (int)buf.len + 1 );
+  memcpy( (void *)nrepos_string, (const void *)buf.buf, buf.len + 1 );
+  strbuf_release( &buf );
+
+  buf.alloc = 0, buf.len = 0, buf.fatal = strbuf_fatal, buf.buf = strbuf_slopbuf;
+
+  strbuf_addf( &buf, "<span class=\"las la-cloud-upload\"></span> %s\n", nrepos_string );
+  if( ctx.promo.donate )
+    strbuf_addf( &buf, "&nbsp; | <a class=\"donate\"><span class=\"icon las la-credit-card\"></span> Donate</a>\n" );
+
+  status_line = (char *)__sbrk( (int)buf.len + 1 );
+  memcpy( (void *)status_line, (const void *)buf.buf, buf.len + 1 );
+  strbuf_release( &buf );
+
+  ctx.vars.status_line = (const char *)status_line;
+}
+
+static void ctx_repo_status_line( struct cgit_repository *rctx )
+{
+  struct strbuf buf      = STRBUF_INIT;
+  struct strbuf branches = STRBUF_INIT;
+  struct strbuf commits  = STRBUF_INIT;
+  struct strbuf tags     = STRBUF_INIT;
+  char  *status_line = NULL;
+
+  if( !rctx ) return;
+
+  strbuf_addf( &commits, Q_("%d Commit", "%d Commits", rctx->ncommits), rctx->ncommits );
+  strbuf_addf( &branches, Q_("%d Branch", "%d Branches", rctx->nbranches), rctx->nbranches );
+  strbuf_addf( &tags, Q_("%d Tag", "%d Tags", rctx->ntags), rctx->ntags );
+
+  if( rctx->ncommits == 9999 )
+    strbuf_addf( &buf, "<span class=\"las la-code-commit\"></span> More than %s &nbsp;\n", commits.buf );
+  else
+    strbuf_addf( &buf, "<span class=\"las la-code-commit\"></span> %s &nbsp;\n", commits.buf );
+  strbuf_addf( &buf, "<span class=\"las la-code-branch\"></span> %s &nbsp;\n", branches.buf );
+  strbuf_addf( &buf, "<span class=\"las la-tags\"></span> %s\n", tags.buf );
+  if( ctx.promo.donate )
+    strbuf_addf( &buf, "&nbsp; | <a class=\"donate\"><span class=\"icon las la-credit-card\"></span> Donate</a>\n" );
+
+  strbuf_release( &branches );
+  strbuf_release( &commits );
+  strbuf_release( &tags );
+
+  status_line = (char *)__sbrk( (int)buf.len + 1 );
+  memcpy( (void *)status_line, (const void *)buf.buf, buf.len + 1 );
+  strbuf_release( &buf );
+
+  ctx.vars.status_line = (const char *)status_line;
+}
+
+static void ctx_repolist_menu( void )
+{
+  struct strbuf mmenu = STRBUF_INIT;
+  struct strbuf popup = STRBUF_INIT;
+  struct strbuf right = STRBUF_INIT;
+
+  char *main_menu  = NULL;
+  char *popup_menu = NULL;
+  char *right_menu = NULL;
+
+  strbuf_addf( &mmenu, "<a href=\"/\">Index</a>\n" );
+  strbuf_addf( &popup, "<div class=\"item\"><span class=\"icon las la-home\"></span><a href=\"%s\" target=\"_blank\">Home page</a></div>\n", ctx.vars.home_page );
+  strbuf_addf( &right, "<div class=\"item\"><a href=\"%s\" target=\"_blank\">Home page</a></div>\n", ctx.vars.home_page );
+
+  main_menu = (char *)__sbrk( (int)mmenu.len + 1 );
+  memcpy( (void *)main_menu, (const void *)mmenu.buf, mmenu.len + 1 );
+  strbuf_release( &mmenu );
+  ctx.vars.main_menu_item = (const char *)main_menu;
+
+  popup_menu = (char *)__sbrk( (int)popup.len + 1 );
+  memcpy( (void *)popup_menu, (const void *)popup.buf, popup.len + 1 );
+  strbuf_release( &popup );
+  ctx.vars.popup_menu_items = (const char *)popup_menu;
+
+  right_menu = (char *)__sbrk( (int)right.len + 1 );
+  memcpy( (void *)right_menu, (const void *)right.buf, right.len + 1 );
+  strbuf_release( &right );
+  ctx.vars.right_menu_items = (const char *)right_menu;
+}
+
+static void ctx_repo_menu( struct cgit_repository *rctx )
+{
+  struct strbuf mmenu = STRBUF_INIT;
+  struct strbuf left  = STRBUF_INIT;
+  struct strbuf popup = STRBUF_INIT;
+  struct strbuf right = STRBUF_INIT;
+
+  char *main_menu  = NULL;
+  char *left_menu  = NULL;
+  char *popup_menu = NULL;
+  char *right_menu = NULL;
+
+  if( !rctx ) return;
+
+  strbuf_addf( &mmenu, "<a href=\"/\">Index</a>\n" );
+
+  strbuf_addf( &left, "<div class=\"item\"><a href=\"/%s/%s/\">Trunk</a></div>\n", rctx->name, "trunk" );
+  strbuf_addf( &left, "<div class=\"item\"><a href=\"/%s/%s/\">Branches</a></div>\n", rctx->name, "branches" );
+  strbuf_addf( &left, "<div class=\"item\"><a href=\"/%s/%s/\">Tags</a></div>\n", rctx->name, "tags" );
+
+  strbuf_addf( &popup, "<div class=\"item\"><span class=\"icon las la-road\"></span><a href=\"/%s/%s/\">Trunk</a></div>\n", rctx->name, "trunk" );
+  strbuf_addf( &popup, "<div class=\"item\"><span class=\"icon las la-code-branch\"></span><a href=\"/%s/%s/\">Branches</a></div>\n", rctx->name, "branches" );
+  strbuf_addf( &popup, "<div class=\"item\"><span class=\"icon las la-tags\"></span><a href=\"/%s/%s/\">Tags</a></div>\n", rctx->name, "tags" );
+  strbuf_addf( &popup, "<div class=\"divider\"></div>\n" );
+  strbuf_addf( &popup, "<div class=\"item\"><span class=\"icon las la-home\"></span><a href=\"%s\" target=\"_blank\">Home page</a></div>\n", ctx.vars.home_page );
+
+  strbuf_addf( &right, "<div class=\"item\"><a href=\"%s\" target=\"_blank\">Home page</a></div>\n", ctx.vars.home_page );
+
+  main_menu = (char *)__sbrk( (int)mmenu.len + 1 );
+  memcpy( (void *)main_menu, (const void *)mmenu.buf, mmenu.len + 1 );
+  strbuf_release( &mmenu );
+  ctx.vars.main_menu_item = (const char *)main_menu;
+
+  left_menu = (char *)__sbrk( (int)left.len + 1 );
+  memcpy( (void *)left_menu, (const void *)left.buf, left.len + 1 );
+  strbuf_release( &left );
+  ctx.vars.left_menu_items = (const char *)left_menu;
+
+  popup_menu = (char *)__sbrk( (int)popup.len + 1 );
+  memcpy( (void *)popup_menu, (const void *)popup.buf, popup.len + 1 );
+  strbuf_release( &popup );
+  ctx.vars.popup_menu_items = (const char *)popup_menu;
+
+  right_menu = (char *)__sbrk( (int)right.len + 1 );
+  memcpy( (void *)right_menu, (const void *)right.buf, right.len + 1 );
+  strbuf_release( &right );
+  ctx.vars.right_menu_items = (const char *)right_menu;
+}
+
+
+static void ctx_header_from_global( void )
+{
+  struct strbuf   buf  = STRBUF_INIT;
+  struct variable head = { (unsigned char *)"header", { 0 }, DT_PATH }, *var = NULL;
+  char  *pheader = NULL;
+
+  var = lookup_global( lookup_global_section( config ), &head );
+  strbuf_selfdir( &buf );
+
+  if( var ) { strbuf_addf( &buf, "%s", (const char *)var->_v.vptr ); }
+  else      { strbuf_addf( &buf, "%s", ctx.page.header );            }
+
+  pheader = (char *)__sbrk( (int)buf.len + 1 );
+  sprintf( pheader, "%s", buf.buf );
+  strbuf_release( &buf );
+  ctx.page.header = (const char *)pheader;
+}
+
+static void ctx_header_from_repo( struct repo *repo )
+{
+  struct strbuf   buf  = STRBUF_INIT;
+  struct variable head = { (unsigned char *)"header", { 0 }, DT_PATH }, *var = NULL;
+  char  *pheader = NULL;
+
+  var = lookup( repo, &head );
+  strbuf_selfdir( &buf );
+
+  if( var ) { strbuf_addf( &buf, "%s", (const char *)var->_v.vptr ); }
+  else      { strbuf_addf( &buf, "%s", ctx.page.header );            }
+
+  pheader = (char *)__sbrk( (int)buf.len + 1 );
+  sprintf( pheader, "%s", buf.buf );
+  strbuf_release( &buf );
+  ctx.page.header = (const char *)pheader;
+}
+
+
+static void ctx_footer_from_global( void )
+{
+  struct strbuf   buf  = STRBUF_INIT;
+  struct variable foot = { (unsigned char *)"footer", { 0 }, DT_PATH }, *var = NULL;
+  char  *pfooter = NULL;
+
+  var = lookup_global( lookup_global_section( config ), &foot );
+  strbuf_selfdir( &buf );
+
+  if( var ) { strbuf_addf( &buf, "%s", (const char *)var->_v.vptr ); }
+  else      { strbuf_addf( &buf, "%s", ctx.page.footer );            }
+
+  pfooter = (char *)__sbrk( (int)buf.len + 1 );
+  sprintf( pfooter, "%s", buf.buf );
+  strbuf_release( &buf );
+  ctx.page.footer = (const char *)pfooter;
+}
+
+static void ctx_footer_from_repo( struct repo *repo )
+{
+  struct strbuf   buf  = STRBUF_INIT;
+  struct variable foot = { (unsigned char *)"footer", { 0 }, DT_PATH }, *var = NULL;
+  char  *pfooter = NULL;
+
+  var = lookup( repo, &foot );
+  strbuf_selfdir( &buf );
+
+  if( var ) { strbuf_addf( &buf, "%s", (const char *)var->_v.vptr ); }
+  else      { strbuf_addf( &buf, "%s", ctx.page.footer );            }
+
+  pfooter = (char *)__sbrk( (int)buf.len + 1 );
+  sprintf( pfooter, "%s", buf.buf );
+  strbuf_release( &buf );
+  ctx.page.footer = (const char *)pfooter;
+}
+
+
+static char name[PATH_MAX] = { 0 };
+static char repo_root[PATH_MAX] = { 0 };
+static char relative_path[PATH_MAX] = { 0 };
+
+static char try[PATH_MAX] = { 0 };
+
+static struct repo *ctx_repo_name( void )
+{
+  struct repo *repo = NULL;
+  char *s, *p = NULL, *n, *path, *path_info;
+  int   len = 0;
+
+  if( strcmp( "/", ctx.env.path_info ) )
+  {
+    path_info = xstrdup( ctx.env.path_info );
+    s = path_info;
+
+    while( *s )
+    {
+      while( *s && is_dir_sep( *s ) )
+        ++s;
+      n = p = s;
+
+      while( *p && !is_dir_sep( *p ) )
+        ++p;
+      if( *p )
+      {
+        *p = '\0'; s = ++p;
+
+        /****************************************************************
+          The repo name can be given as a relative path in the git-root:
+         */
+        if( repo_root[0] )
+        {
+          sprintf( try, "%s", repo_root );
+          strcat( try, "/" );
+          strcat( try, n );
+        }
+        else
+        {
+          sprintf( try, "%s", n );
+        }
+
+        if( (repo = lookup_repo( config, try )) )
+        {
+          sprintf( name, "%s", try );
+          {
+            char *rr = strstr( repo_root, try );
+            if( rr )
+              *rr = '\0';
+            else
+              repo_root[0] = '\0';
+          }
+          break;
+        }
+        else
+        {
+          if( repo_root[0] )
+            strcat( repo_root, "/" );
+          strcat( repo_root, n );
+        }
+      }
+      else
+        s = p;
+    }
+
+    ctx.repo.name = (const char *)&name[0];
+    ctx.repo.repo_root = (const char *)&repo_root[0];
+
+    path = p;
+
+    if( *path )
+    {
+      len = (int)strlen( path );
+
+      if( path[len-1] =='/' ) { path[len-1] = '\0'; --len; }
+      len += 1;
+
+      sprintf( relative_path, "%s", path );
+      ctx.repo.relative_path = (const char *)&relative_path[0];
+    }
+
+    free( path_info );
+  }
+
+  return repo;
+}
+
+
+/*************************************************************
+  Get integer value of query parameter 'name' and remove this
+  parameter 'name=..' from ctx.env.query_string.
+ */
+int ctx_grab_int_query_param( const char *name )
+{
+  char *pofs = NULL, *query_string, *s = (char *)ctx.env.query_string;
+  int   ret = 0, len = 0;
+
+  if( !name || !*name ) return ret;
+
+  if( s && *s && (pofs = strstr( s, name )) )
+  {
+    char *rem, *p, *val = NULL;
+    struct strbuf buf = STRBUF_INIT;
+
+    p = pofs;
+
+    /* move to end of 'ofs=val' declaration: */
+    while( *p && *p != '&' && *p != '=' ) ++p;
+    if( *p == '=' ) { val = ++p; while( *p && *p != '&' ) ++p; }
+    if( *p ) { *p = '\0'; rem = ++p; }
+    else
+    {
+      rem = p;
+      if( s < pofs && (pofs[-1] == '&' || pofs[-1] == '=') ) --pofs;
+    }
+
+    /* fill buffer: */
+    while( s < pofs ) { strbuf_addch( &buf, *s ); ++s; }
+    s = rem;
+    while( *s ) { strbuf_addch( &buf, *s ); ++s; }
+    strbuf_addch( &buf, '\0' );
+
+    /* get value: */
+    if( val && *val ) { ret = atoi( val ); }
+    else              { ret = 0;           }
+
+    len = (int)buf.len;
+    query_string = (char *)__sbrk( len );
+    memcpy( (void *)query_string, (const void *)buf.buf, (size_t)len );
+    strbuf_release( &buf );
+    ctx.env.query_string = (const char *)query_string;
+  }
+
+  return ret;
+}
+
+/*************************************************************
+  Get string value of query parameter 'name' and remove this
+  parameter 'name=..' from ctx.env.query_string.
+ */
+const char *ctx_grab_str_query_param( const char *name )
+{
+  const char *ret = NULL;
+  char *pofs = NULL, *query_string, *s = (char *)ctx.env.query_string;
+  int   len = 0;
+
+  if( !name || !*name ) return ret;
+
+  if( s && *s && (pofs = strstr( s, name )) )
+  {
+    char *rem, *p, *val = NULL;
+    struct strbuf buf = STRBUF_INIT;
+
+    p = pofs;
+
+    /* move to end of 'ofs=val' declaration: */
+    while( *p && *p != '&' && *p != '=' ) ++p;
+    if( *p == '=' ) { val = ++p; while( *p && *p != '&' ) ++p; }
+    if( *p ) { *p = '\0'; rem = ++p; }
+    else
+    {
+      rem = p;
+      if( s < pofs && (pofs[-1] == '&' || pofs[-1] == '=') ) --pofs;
+    }
+
+    /* fill buffer: */
+    while( s < pofs ) { strbuf_addch( &buf, *s ); ++s; }
+    s = rem;
+    while( *s ) { strbuf_addch( &buf, *s ); ++s; }
+    strbuf_addch( &buf, '\0' );
+
+    /* get value: */
+    if( val && *val )
+    {
+      char *value = NULL;
+
+      len = (int)strlen( val ) + 1;
+      value = (char *)__sbrk( len );
+      memcpy( (void *)value, (const void *)val, (size_t)len );
+
+      ret = (const char *)value;
+    }
+
+    len = (int)buf.len;
+    query_string = (char *)__sbrk( len );
+    memcpy( (void *)query_string, (const void *)buf.buf, (size_t)len );
+    strbuf_release( &buf );
+    ctx.env.query_string = (const char *)query_string;
+  }
+
+  return ret;
+}
+
+/***************************************************************
+  Rmove parametr with specified 'name=...' fom query string and
+  return modified query string allocated in context _mem[].
+ */
+const char *ctx_remove_query_param( const char *query_string, const char *name )
+{
+  char *pofs = NULL, *query = NULL, *s = (char *)query_string;
+  int len = 0;
+
+  if( !name || !*name ) return (const char *)query;
+
+  if( s && *s && (pofs = strstr( s, name )) )
+  {
+    char *rem, *p;
+    struct strbuf buf = STRBUF_INIT;
+
+    p = pofs;
+
+    /* move to end of 'ofs=val' declaration: */
+    while( *p && *p != '&' && *p != '=' ) ++p;
+    if( *p == '=' ) { while( *p && *p != '&' ) ++p; }
+    if( *p ) { *p = '\0'; rem = ++p; }
+    else
+    {
+      rem = p;
+      if( s < pofs && (pofs[-1] == '&' || pofs[-1] == '=') ) --pofs;
+    }
+
+    /* fill buffer: */
+    while( s < pofs ) { strbuf_addch( &buf, *s ); ++s; }
+    s = rem;
+    while( *s ) { strbuf_addch( &buf, *s ); ++s; }
+    strbuf_addch( &buf, '\0' );
+
+    len = (int)buf.len;
+    query = (char *)__sbrk( len );
+    memcpy( (void *)query, (const void *)buf.buf, (size_t)len );
+    strbuf_release( &buf );
+    return (const char *)query;
+  }
+
+  return (const char *)query;
+}
+
+
+static void ctx_search_placeholder( void )
+{
+  struct strbuf buf = STRBUF_INIT;
+  char  *revision;
+  int    len;
+
+  if( !strcmp( ctx.vars.page_type, ptype_repo ) )
+  {
+    if( ctx.query.rev && strcmp( ctx.query.rev, "0" ) )
+      strbuf_addf( &buf, "%0.12s...", ctx.query.rev );
+    else
+      strbuf_addf( &buf, "%0.12s...", ctx.repo.info.revision );
+
+    len = (int)strlen( buf.buf ) + 1;
+    revision = (char *)__sbrk( len );
+    memcpy( (void *)revision, (const void *)buf.buf, (size_t)len );
+    strbuf_release( &buf );
+
+    ctx.repo.search_placeholder = (const char *)revision;
+    /* ctx.repo.search_placeholder = "HEAD"; */
+  }
+}
+
+static void ctx_relative_html( void )
+{
+  struct strbuf buf  = STRBUF_INIT;
+  char  *relative_html;
+  int    len;
+
+  if( !strcmp( ctx.vars.page_type, ptype_repolist ) )
+  {
+    if( ctx.env.http_host && *ctx.env.http_host )
+    {
+      strbuf_addf( &buf, "<a class='base' href='/'>%s</a>/", ctx.env.http_host );
+    }
+    else if( ctx.env.server_name && *ctx.env.server_name )
+    {
+      strbuf_addf( &buf, "<a class='base' href='/'>%s</a>/", ctx.env.server_name );
+    }
+  }
+  else if( !strcmp( ctx.vars.page_type, ptype_repo ) )
+  {
+    if( ctx.repo.name && *ctx.repo.name )
+    {
+      if( ctx.repo.repo_root && *ctx.repo.repo_root )
+        strbuf_addf( &buf, "<a class='base' href='/%s/%s/'>%s/%s</a>/", ctx.repo.repo_root, ctx.repo.name, ctx.repo.repo_root, ctx.repo.name );
+      else
+        strbuf_addf( &buf, "<a class='base' href='/%s/'>%s</a>/", ctx.repo.name, ctx.repo.name );
+    }
+    if( ctx.repo.relative_path && *ctx.repo.relative_path )
+    {
+      char   *p, *s, *rem;
+      int     msize;
+      char   *path, *href;
+      size_t  length;
+
+      length = strlen( ctx.repo.relative_path ) + 1;
+      msize = (int)strlen(ctx.repo.name) + (int)strlen(ctx.repo.relative_path) + 4; /* '/' repo.name '/' relative_path '/' + '\0' */
+
+      href = (char *)__sbrk( msize );
+      sprintf( href, "/%s/", ctx.repo.name );
+
+      path = (char *)__sbrk( msize );
+      memcpy( (void *)path, (const void *)ctx.repo.relative_path, length );
+
+      p = s = path;
+      while( *p && !is_dir_sep( *p ) ) ++p;
+      if( *p ) { *p = '\0'; rem = ++p; }
+      else     { rem = p; }
+      strcat( href, s ); strcat( href, "/" );
+
+      if( !strcmp( s, "trunk" )    ||
+          !strcmp( s, "branches" ) ||
+          !strcmp( s, "tags" )       )
+      {
+        strbuf_addf( &buf, "<a class='base' href='%s'>%s</a>/", href, s );
+
+        /**********************************************
+          Searching the real name of branch or tag:
+         */
+        if( !strcmp( s, "branches" ) || !strcmp( s, "tags" ) )
+        {
+          char  reminder[PATH_MAX] = { 0 };
+          char *n, *r = (char *)&reminder[0];
+
+          sprintf( reminder, "%s", rem );
+          n = r;
+
+          while( *r && !is_dir_sep( *r ) )
+            ++r;
+          if( *r )
+          {
+            *r = '\0'; ++r;
+          }
+
+          if( n && *n )
+          {
+            int   found = 0;
+            char  ref[PATH_MAX] = { 0 };
+            char *b;
+
+            struct cgit_ref_names *names = NULL;
+
+            sprintf( ref, "%s", n );
+
+            if( !strcmp( s, "branches" ) )
+              lookup_branches_by_prefix( &names, n );
+            else
+              lookup_tags_by_prefix( &names, n );
+
+            while( *r )
+            {
+              b = r;
+              while( *r && *r != '/' )
+                ++r;
+              if( *r )
+              {
+                *r = '\0'; ++r;
+              }
+
+              if( b && *b )
+              {
+                char probe[PATH_MAX] = { 0 };
+                sprintf( probe, "%s/%s", ref, b );
+
+                found = 0;
+                {
+                  size_t i, len = strlen( probe );
+                  for( i = 0; i < names->len; ++i )
+                  {
+                    if( !strncmp( probe, names->name[i], len ) )
+                    {
+                      ++found;
+                    }
+                  }
+                }
+                if( found == 1 )
+                {
+                  strcat( ref, "/" );
+                  strcat( ref, b );
+                  break;
+                }
+                if( found )
+                {
+                  strcat( ref, "/" );
+                  strcat( ref, b );
+                }
+              }
+            }
+            cgit_ref_names_free( names );
+
+            if( found )
+            {
+              strcat( href, ref ); strcat( href, "/" );
+              strbuf_addf( &buf, "<a class='relative' href='%s'>%s</a>/", href, ref );
+              rem += r - &reminder[0];
+            }
+          }
+        }
+        /*
+          End of searching real name of branch or tag.
+         **********************************************/
+      }
+      else
+      {
+        strbuf_addf( &buf, "<a class='relative' href='%s'>%s</a>/", href, s );
+      }
+
+      s = rem;
+      while( *s )
+      {
+        p = s;
+        while( *p && !is_dir_sep( *p ) ) ++p;
+        if( *p ) { *p = '\0'; rem = ++p; }
+        else     { rem = p; }
+        strcat( href, s ); strcat( href, "/" );
+        strbuf_addf( &buf, "<a class='relative' href='%s'>%s</a>/", href, s );
+        s = rem;
+      }
+
+      if( ctx.repo.relative_info.kind == GIT_OBJECT_BLOB )
+        strbuf_trim_trailing_dir_sep( &buf );
+
+      ctx.repo.relative_href = (const char *)href;
+
+      (void)__sbrk( - msize ); /* free ctx memory alocated for path only */
+    }
+  }
+
+  len = (int)strlen( buf.buf ) + 1;
+  relative_html = (char *)__sbrk( len );
+  memcpy( (void *)relative_html, (const void *)buf.buf, (size_t)len );
+  strbuf_release( &buf );
+  ctx.repo.relative_html = (const char *)relative_html;
+}
+
+static void ctx_check_query_uri( int replace_query_string )
+{
+  /*
+    Nginx passed QUERY_STRING for all cgi engines by: {fastcgi, scgi, uwsgi}_params.
+    But PATH_INFO passed onlyfor UWSGI by uwsgi_params.
+   */
+  if( !ctx.env.path_info && ctx.env.request_uri && *ctx.env.request_uri )
+  {
+    char *path_info = NULL, *query_string = NULL;
+    char *p, *path, *query = NULL;
+    int   len;
+
+    p = path = (char *)ctx.env.request_uri;
+
+    while( *p && *p != '?' ) ++p;
+    if( *p == '?' ) { *p = '\0'; query = ++p; }
+
+    len = strlen( path ) + 1;
+    path_info = (char *)__sbrk( len );
+    memcpy( (void *)path_info, (const void *)path, (size_t)len );
+    ctx.env.path_info = (const char *)path_info;
+
+    if( query && *query && replace_query_string )
+    {
+      len = strlen( query ) + 1;
+      query_string = (char *)__sbrk( len );
+      memcpy( (void *)query_string, (const void *)query, (size_t)len );
+      ctx.env.query_string = (const char *)query_string;
+    }
+  }
+}
+
+
+static void querystring_cb( const char *name, const char *value )
+{
+  char *val;
+  int   len;
+
+  if( !value )
+    value = "";
+
+  if( !strcmp( name, "rev" ) )
+  {
+    len = (int)strlen( value ) + 1;
+    val = (char *)__sbrk( len );
+    memcpy( (void *)val, (const void *)value, (size_t)len );
+    ctx.query.revision = (const char *)val;
+    if( !strcasecmp( val, "HEAD" ) )
+      ctx.query.rev = "0";
+    else
+      ctx.query.rev = ctx.query.revision;
+    /*****************************************************************************
+      NOTE:
+      ====
+        We have to call http_parse_querystring() strongly after calling
+        cgit_rpath_info() or ctx_relative_html() because the structs
+        ctx.repo.info and ctx.repo.relative_info should be completed before
+        parsing special Git revision names.
+
+        Revision at start of the date '{' DATE '}' we will not support.
+     *****************************************************************************/
+  }
+  else if( !strcmp( name, "op" ) )
+  {
+    len = (int)strlen( value ) + 1;
+    val = (char *)__sbrk( len );
+    memcpy( (void *)val, (const void *)value, (size_t)len );
+    ctx.query.operation = (const char *)val;
+  }
+  else if( !strcmp( name, "search" ) )
+  {
+    len = (int)strlen( value ) + 1;
+    val = (char *)__sbrk( len );
+    memcpy( (void *)val, (const void *)value, (size_t)len );
+    ctx.query.search = (const char *)val;
+  }
+/*
+  else if( another parameter )
+  {
+  }
+  ...
+ */
+  /* NOTE: Do not parse 'ofs=' parameter! */
+}
+
+
+void cgit_parse_query( void )
+{
+  char *path_info = NULL;
+
+  get_selfdir();
+
+  ctx_check_query_uri( 1 );
+
+  path_info = xstrdup( ctx.env.path_info );
+
+  ctx.query.ofs = ctx_grab_int_query_param( "ofs" );
+  http_parse_querystring( ctx.env.query_string, querystring_cb );
+  if( !strcmp( ctx.query.rev, "0" ) )
+  {
+    (void)ctx_grab_str_query_param( "rev" );
+    ctx.query.rev = "0";
+  }
+
+  if( path_info )
+  {
+    if( !strcmp( "/", path_info ) )
+    {
+      ctx_page_size_from_global();
+      ctx_repo_dirs_from_global();
+      ctx_site_vars_from_global();
+      ctx_promo_vars_from_global();
+      ctx_header_from_global();
+      ctx_footer_from_global();
+      ctx_num_of_repos();
+      ctx_repolist_status_line();
+      ctx_repolist_menu();
+    }
+    else
+    {
+      struct repo *repo = NULL;
+
+      repo = ctx_repo_name();
+      if( repo )
+      {
+        ctx_page_size_from_repo( repo );
+        ctx_repo_dirs_from_repo( repo );
+        ctx_site_vars_from_repo( repo );
+        ctx_promo_vars_from_repo( repo );
+        ctx_header_from_repo( repo );
+        ctx_footer_from_repo( repo );
+        ctx.vars.page_type = ptype_repo;
+
+        cgit_repo_info( &ctx.repo.info, NULL );
+        if( ctx.repo.relative_path )
+        {
+          cgit_rpath_info( &ctx.repo.relative_info, ctx.repo.relative_path, (!strcmp( ctx.query.rev, "0" )) ? NULL : ctx.query.rev );
+          if( ctx.repo.relative_info.kind != GIT_OBJECT_TREE && ctx.repo.relative_info.kind != GIT_OBJECT_BLOB )
+          {
+            /* Query string requested invalid revision: */
+            memcpy( (void *)&ctx.repo.relative_info, (const void *)&ctx.repo.info, sizeof( struct cgit_info ) );
+            ctx.query.revision = NULL;
+            (void)ctx_grab_str_query_param( "rev" );
+            ctx.query.rev = "0";
+          }
+        }
+        else
+          memcpy( (void *)&ctx.repo.relative_info, (const void *)&ctx.repo.info, sizeof( struct cgit_info ) );
+
+        cgit_repo_branches_number( &ctx.repo );
+        cgit_repo_commits_number( &ctx.repo );
+        cgit_repo_tags_number( &ctx.repo );
+        ctx_repo_status_line( &ctx.repo );
+        ctx_repo_menu( &ctx.repo );
+      }
+      else
+      {
+        ctx_page_size_from_global();
+        ctx_repo_dirs_from_global();
+        ctx_header_from_global();
+        ctx_footer_from_global();
+
+        ctx.page.status = 404;
+        ctx.page.status_message = "Page not found";
+
+        ctx.vars.title = "404";
+        {
+          struct strbuf  buf = STRBUF_INIT;
+          char  *stmsg = NULL;
+
+          /**************************************************************************
+            We slipped to the end of PATH_INFO when we were looking for a repository
+            and now we printout the repo-root:
+           */
+          strbuf_addf( &buf, "Git Repository '%s' not found.", ctx.repo.repo_root );
+          stmsg = (char *)__sbrk( (int)buf.len + 1 );
+          memcpy( (void *)stmsg, (const void *)buf.buf, buf.len + 1 );
+          strbuf_release( &buf );
+          ctx.vars.description = (const char *)stmsg;
+        }
+      }
+
+      ctx_num_of_repos();
+    }
+
+    ctx_relative_html();
+    ctx_search_placeholder();
+
+    cgit_git_version( &ctx.vers );
+    cgit_nginx_version( &ctx.vers );
+
+    free( path_info );
+  }
+}