27 files changed, 553 insertions, 151 deletions

diff --git a/.gitignore b/.gitignore
index 1e016e5..487728b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,11 @@
 # Files I don't care to see in git-status/commit
 cgit
 cgit.conf
 VERSION
+cgitrc.5
+cgitrc.5.fo
+cgitrc.5.html
+cgitrc.5.pdf
+cgitrc.5.xml
 *.o
 *.d
diff --git a/Makefile b/Makefile
index 33c606d..1f9893a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,20 +1,20 @@
 CGIT_VERSION = v0.8.2.1
 CGIT_SCRIPT_NAME = cgit.cgi
 CGIT_SCRIPT_PATH = /var/www/htdocs/cgit
 CGIT_DATA_PATH = $(CGIT_SCRIPT_PATH)
 CGIT_CONFIG = /etc/cgitrc
 CACHE_ROOT = /var/cache/cgit
 SHA1_HEADER = <openssl/sha.h>
-GIT_VER = 1.6.1.1
+GIT_VER = 1.6.3.4
 GIT_URL = http://www.kernel.org/pub/software/scm/git/git-$(GIT_VER).tar.bz2
 INSTALL = install
 
 # Define NO_STRCASESTR if you don't have strcasestr.
 #
 # Define NEEDS_LIBICONV if linking with libc is not enough (eg. Darwin).
 #
 
 #-include config.mak
 
 #
 # Platform specific tweaks
@@ -91,25 +91,26 @@ OBJECTS += ui-repolist.o
 OBJECTS += ui-shared.o
 OBJECTS += ui-snapshot.o
 OBJECTS += ui-stats.o
 OBJECTS += ui-summary.o
 OBJECTS += ui-tag.o
 OBJECTS += ui-tree.o
 
 ifdef NEEDS_LIBICONV
         EXTLIBS += -liconv
 endif
 
 
-.PHONY: all libgit test install uninstall clean force-version get-git
+.PHONY: all libgit test install uninstall clean force-version get-git \
+        doc man-doc html-doc clean-doc
 
 all: cgit
 
 VERSION: force-version
         @./gen-version.sh "$(CGIT_VERSION)"
 -include VERSION
 
 
 CFLAGS += -g -Wall -Igit
 CFLAGS += -DSHA1_HEADER='$(SHA1_HEADER)'
 CFLAGS += -DCGIT_VERSION='"$(CGIT_VERSION)"'
 CFLAGS += -DCGIT_CONFIG='"$(CGIT_CONFIG)"'
@@ -140,17 +141,31 @@ test: all
 install: all
         $(INSTALL) -m 0755 -d $(DESTDIR)$(CGIT_SCRIPT_PATH)
         $(INSTALL) -m 0755 cgit $(DESTDIR)$(CGIT_SCRIPT_PATH)/$(CGIT_SCRIPT_NAME)
         $(INSTALL) -m 0755 -d $(DESTDIR)$(CGIT_DATA_PATH)
         $(INSTALL) -m 0644 cgit.css $(DESTDIR)$(CGIT_DATA_PATH)/cgit.css
         $(INSTALL) -m 0644 cgit.png $(DESTDIR)$(CGIT_DATA_PATH)/cgit.png
 
 uninstall:
         rm -f $(CGIT_SCRIPT_PATH)/$(CGIT_SCRIPT_NAME)
         rm -f $(CGIT_DATA_PATH)/cgit.css
         rm -f $(CGIT_DATA_PATH)/cgit.png
 
-clean:
+doc: man-doc html-doc pdf-doc
+
+man-doc: cgitrc.5.txt
+        a2x -f manpage cgitrc.5.txt
+
+html-doc: cgitrc.5.txt
+        a2x -f xhtml --stylesheet=cgit-doc.css cgitrc.5.txt
+
+pdf-doc: cgitrc.5.txt
+        a2x -f pdf cgitrc.5.txt
+
+clean: clean-doc
         rm -f cgit VERSION *.o *.d
 
+clean-doc:
+        rm -f cgitrc.5 cgitrc.5.html cgitrc.5.pdf cgitrc.5.xml cgitrc.5.fo
+
 get-git:
         curl $(GIT_URL) | tar -xj && rm -rf git && mv git-$(GIT_VER) git
diff --git a/cgit-doc.css b/cgit-doc.css
new file mode 100644
index 0000000..5a399b6
--- a/dev/null
+++ b/cgit-doc.css
@@ -0,0 +1,3 @@
+div.variablelist dt {
+        margin-top: 1em;
+}
diff --git a/cgit.c b/cgit.c
index 5301840..5816f3d 100644
--- a/cgit.c
+++ b/cgit.c
@@ -8,102 +8,141 @@
 
 #include "cgit.h"
 #include "cache.h"
 #include "cmd.h"
 #include "configfile.h"
 #include "html.h"
 #include "ui-shared.h"
 #include "ui-stats.h"
 #include "scan-tree.h"
 
 const char *cgit_version = CGIT_VERSION;
 
+void add_mimetype(const char *name, const char *value)
+{
+        struct string_list_item *item;
+
+        item = string_list_insert(xstrdup(name), &ctx.cfg.mimetypes);
+        item->util = xstrdup(value);
+}
+
+struct cgit_filter *new_filter(const char *cmd, int extra_args)
+{
+        struct cgit_filter *f;
+
+        if (!cmd || !cmd[0])
+                return NULL;
+
+        f = xmalloc(sizeof(struct cgit_filter));
+        f->cmd = xstrdup(cmd);
+        f->argv = xmalloc((2 + extra_args) * sizeof(char *));
+        f->argv[0] = f->cmd;
+        f->argv[1] = NULL;
+        return f;
+}
+
 void config_cb(const char *name, const char *value)
 {
         if (!strcmp(name, "root-title"))
                 ctx.cfg.root_title = xstrdup(value);
         else if (!strcmp(name, "root-desc"))
                 ctx.cfg.root_desc = xstrdup(value);
         else if (!strcmp(name, "root-readme"))
                 ctx.cfg.root_readme = xstrdup(value);
         else if (!strcmp(name, "css"))
                 ctx.cfg.css = xstrdup(value);
         else if (!strcmp(name, "favicon"))
                 ctx.cfg.favicon = xstrdup(value);
         else if (!strcmp(name, "footer"))
                 ctx.cfg.footer = xstrdup(value);
+        else if (!strcmp(name, "head-include"))
+                ctx.cfg.head_include = xstrdup(value);
         else if (!strcmp(name, "header"))
                 ctx.cfg.header = xstrdup(value);
         else if (!strcmp(name, "logo"))
                 ctx.cfg.logo = xstrdup(value);
         else if (!strcmp(name, "index-header"))
                 ctx.cfg.index_header = xstrdup(value);
         else if (!strcmp(name, "index-info"))
                 ctx.cfg.index_info = xstrdup(value);
         else if (!strcmp(name, "logo-link"))
                 ctx.cfg.logo_link = xstrdup(value);
         else if (!strcmp(name, "module-link"))
                 ctx.cfg.module_link = xstrdup(value);
         else if (!strcmp(name, "virtual-root")) {
                 ctx.cfg.virtual_root = trim_end(value, '/');
                 if (!ctx.cfg.virtual_root && (!strcmp(value, "/")))
                         ctx.cfg.virtual_root = "";
         } else if (!strcmp(name, "nocache"))
                 ctx.cfg.nocache = atoi(value);
+        else if (!strcmp(name, "noplainemail"))
+                ctx.cfg.noplainemail = atoi(value);
+        else if (!strcmp(name, "noheader"))
+                ctx.cfg.noheader = atoi(value);
         else if (!strcmp(name, "snapshots"))
                 ctx.cfg.snapshots = cgit_parse_snapshots_mask(value);
         else if (!strcmp(name, "enable-index-links"))
                 ctx.cfg.enable_index_links = atoi(value);
         else if (!strcmp(name, "enable-log-filecount"))
                 ctx.cfg.enable_log_filecount = atoi(value);
         else if (!strcmp(name, "enable-log-linecount"))
                 ctx.cfg.enable_log_linecount = atoi(value);
         else if (!strcmp(name, "max-stats"))
                 ctx.cfg.max_stats = cgit_find_stats_period(value, NULL);
         else if (!strcmp(name, "cache-size"))
                 ctx.cfg.cache_size = atoi(value);
         else if (!strcmp(name, "cache-root"))
                 ctx.cfg.cache_root = xstrdup(value);
         else if (!strcmp(name, "cache-root-ttl"))
                 ctx.cfg.cache_root_ttl = atoi(value);
         else if (!strcmp(name, "cache-repo-ttl"))
                 ctx.cfg.cache_repo_ttl = atoi(value);
         else if (!strcmp(name, "cache-static-ttl"))
                 ctx.cfg.cache_static_ttl = atoi(value);
         else if (!strcmp(name, "cache-dynamic-ttl"))
                 ctx.cfg.cache_dynamic_ttl = atoi(value);
+        else if (!strcmp(name, "about-filter"))
+                ctx.cfg.about_filter = new_filter(value, 0);
+        else if (!strcmp(name, "commit-filter"))
+                ctx.cfg.commit_filter = new_filter(value, 0);
+        else if (!strcmp(name, "embedded"))
+                ctx.cfg.embedded = atoi(value);
         else if (!strcmp(name, "max-message-length"))
                 ctx.cfg.max_msg_len = atoi(value);
         else if (!strcmp(name, "max-repodesc-length"))
                 ctx.cfg.max_repodesc_len = atoi(value);
         else if (!strcmp(name, "max-repo-count"))
                 ctx.cfg.max_repo_count = atoi(value);
         else if (!strcmp(name, "max-commit-count"))
                 ctx.cfg.max_commit_count = atoi(value);
+        else if (!strcmp(name, "source-filter"))
+                ctx.cfg.source_filter = new_filter(value, 1);
         else if (!strcmp(name, "summary-log"))
                 ctx.cfg.summary_log = atoi(value);
         else if (!strcmp(name, "summary-branches"))
                 ctx.cfg.summary_branches = atoi(value);
         else if (!strcmp(name, "summary-tags"))
                 ctx.cfg.summary_tags = atoi(value);
         else if (!strcmp(name, "agefile"))
                 ctx.cfg.agefile = xstrdup(value);
         else if (!strcmp(name, "renamelimit"))
                 ctx.cfg.renamelimit = atoi(value);
         else if (!strcmp(name, "robots"))
                 ctx.cfg.robots = xstrdup(value);
         else if (!strcmp(name, "clone-prefix"))
                 ctx.cfg.clone_prefix = xstrdup(value);
         else if (!strcmp(name, "local-time"))
                 ctx.cfg.local_time = atoi(value);
+        else if (!prefixcmp(name, "mimetype."))
+                add_mimetype(name + 9, value);
         else if (!strcmp(name, "repo.group"))
                 ctx.cfg.repo_group = xstrdup(value);
         else if (!strcmp(name, "repo.url"))
                 ctx.repo = cgit_add_repo(value);
         else if (!strcmp(name, "repo.name"))
                 ctx.repo->name = xstrdup(value);
         else if (ctx.repo && !strcmp(name, "repo.path"))
                 ctx.repo->path = trim_end(value, '/');
         else if (ctx.repo && !strcmp(name, "repo.clone-url"))
                 ctx.repo->clone_url = xstrdup(value);
         else if (ctx.repo && !strcmp(name, "repo.desc"))
                 ctx.repo->desc = xstrdup(value);
@@ -112,24 +151,30 @@ void config_cb(const char *name, const char *value)
         else if (ctx.repo && !strcmp(name, "repo.defbranch"))
                 ctx.repo->defbranch = xstrdup(value);
         else if (ctx.repo && !strcmp(name, "repo.snapshots"))
                 ctx.repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value); /* XXX: &? */
         else if (ctx.repo && !strcmp(name, "repo.enable-log-filecount"))
                 ctx.repo->enable_log_filecount = ctx.cfg.enable_log_filecount * atoi(value);
         else if (ctx.repo && !strcmp(name, "repo.enable-log-linecount"))
                 ctx.repo->enable_log_linecount = ctx.cfg.enable_log_linecount * atoi(value);
         else if (ctx.repo && !strcmp(name, "repo.max-stats"))
                 ctx.repo->max_stats = cgit_find_stats_period(value, NULL);
         else if (ctx.repo && !strcmp(name, "repo.module-link"))
                 ctx.repo->module_link= xstrdup(value);
+        else if (ctx.repo && !strcmp(name, "repo.about-filter"))
+                ctx.repo->about_filter = new_filter(value, 0);
+        else if (ctx.repo && !strcmp(name, "repo.commit-filter"))
+                ctx.repo->commit_filter = new_filter(value, 0);
+        else if (ctx.repo && !strcmp(name, "repo.source-filter"))
+                ctx.repo->source_filter = new_filter(value, 1);
         else if (ctx.repo && !strcmp(name, "repo.readme") && value != NULL) {
                 if (*value == '/')
                         ctx.repo->readme = xstrdup(value);
                 else
                         ctx.repo->readme = xstrdup(fmt("%s/%s", ctx.repo->path, value));
         } else if (!strcmp(name, "include"))
                 parse_configfile(value, config_cb);
 }
 
 static void querystring_cb(const char *name, const char *value)
 {
         if (!value)
@@ -164,60 +209,83 @@ static void querystring_cb(const char *name, const char *value)
                 ctx.qry.name = xstrdup(value);
         } else if (!strcmp(name, "mimetype")) {
                 ctx.qry.mimetype = xstrdup(value);
         } else if (!strcmp(name, "s")){
                 ctx.qry.sort = xstrdup(value);
         } else if (!strcmp(name, "showmsg")) {
                 ctx.qry.showmsg = atoi(value);
         } else if (!strcmp(name, "period")) {
                 ctx.qry.period = xstrdup(value);
         }
 }
 
+char *xstrdupn(const char *str)
+{
+        return (str ? xstrdup(str) : NULL);
+}
+
 static void prepare_context(struct cgit_context *ctx)
 {
         memset(ctx, 0, sizeof(ctx));
         ctx->cfg.agefile = "info/web/last-modified";
         ctx->cfg.nocache = 0;
         ctx->cfg.cache_size = 0;
         ctx->cfg.cache_dynamic_ttl = 5;
         ctx->cfg.cache_max_create_time = 5;
         ctx->cfg.cache_repo_ttl = 5;
         ctx->cfg.cache_root = CGIT_CACHE_ROOT;
         ctx->cfg.cache_root_ttl = 5;
         ctx->cfg.cache_static_ttl = -1;
         ctx->cfg.css = "/cgit.css";
-        ctx->cfg.logo = "/git-logo.png";
+        ctx->cfg.logo = "/cgit.png";
         ctx->cfg.local_time = 0;
         ctx->cfg.max_repo_count = 50;
         ctx->cfg.max_commit_count = 50;
         ctx->cfg.max_lock_attempts = 5;
         ctx->cfg.max_msg_len = 80;
         ctx->cfg.max_repodesc_len = 80;
         ctx->cfg.max_stats = 0;
         ctx->cfg.module_link = "./?repo=%s&page=commit&id=%s";
         ctx->cfg.renamelimit = -1;
         ctx->cfg.robots = "index, nofollow";
         ctx->cfg.root_title = "Git repository browser";
         ctx->cfg.root_desc = "a fast webinterface for the git dscm";
         ctx->cfg.script_name = CGIT_SCRIPT_NAME;
         ctx->cfg.summary_branches = 10;
         ctx->cfg.summary_log = 10;
         ctx->cfg.summary_tags = 10;
+        ctx->env.cgit_config = xstrdupn(getenv("CGIT_CONFIG"));
+        ctx->env.http_host = xstrdupn(getenv("HTTP_HOST"));
+        ctx->env.https = xstrdupn(getenv("HTTPS"));
+        ctx->env.no_http = xstrdupn(getenv("NO_HTTP"));
+        ctx->env.path_info = xstrdupn(getenv("PATH_INFO"));
+        ctx->env.query_string = xstrdupn(getenv("QUERY_STRING"));
+        ctx->env.request_method = xstrdupn(getenv("REQUEST_METHOD"));
+        ctx->env.script_name = xstrdupn(getenv("SCRIPT_NAME"));
+        ctx->env.server_name = xstrdupn(getenv("SERVER_NAME"));
+        ctx->env.server_port = xstrdupn(getenv("SERVER_PORT"));
         ctx->page.mimetype = "text/html";
         ctx->page.charset = PAGE_ENCODING;
         ctx->page.filename = NULL;
         ctx->page.size = 0;
         ctx->page.modified = time(NULL);
         ctx->page.expires = ctx->page.modified;
+        ctx->page.etag = NULL;
+        memset(&ctx->cfg.mimetypes, 0, sizeof(struct string_list));
+        if (ctx->env.script_name)
+                ctx->cfg.script_name = ctx->env.script_name;
+        if (ctx->env.query_string)
+                ctx->qry.raw = ctx->env.query_string;
+        if (!ctx->env.cgit_config)
+                ctx->env.cgit_config = CGIT_CONFIG;
 }
 
 struct refmatch {
         char *req_ref;
         char *first_ref;
         int match;
 };
 
 int find_current_ref(const char *refname, const unsigned char *sha1,
                      int flags, void *cb_data)
 {
         struct refmatch *info;
@@ -279,24 +347,26 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
         if (!ctx->qry.head) {
                 cgit_print_http_headers(ctx);
                 cgit_print_docstart(ctx);
                 cgit_print_pageheader(ctx);
                 cgit_print_error("Repository seems to be empty");
                 cgit_print_docend();
                 return 1;
         }
 
         if (get_sha1(ctx->qry.head, sha1)) {
                 tmp = xstrdup(ctx->qry.head);
                 ctx->qry.head = ctx->repo->defbranch;
+                ctx->page.status = 404;
+                ctx->page.statusmsg = "not found";
                 cgit_print_http_headers(ctx);
                 cgit_print_docstart(ctx);
                 cgit_print_pageheader(ctx);
                 cgit_print_error(fmt("Invalid branch: %s", tmp));
                 cgit_print_docend();
                 return 1;
         }
         return 0;
 }
 
 static void process_request(void *cbdata)
 {
@@ -370,24 +440,27 @@ void print_repolist(struct cgit_repolist *list)
 static void cgit_parse_args(int argc, const char **argv)
 {
         int i;
         int scan = 0;
 
         for (i = 1; i < argc; i++) {
                 if (!strncmp(argv[i], "--cache=", 8)) {
                         ctx.cfg.cache_root = xstrdup(argv[i]+8);
                 }
                 if (!strcmp(argv[i], "--nocache")) {
                         ctx.cfg.nocache = 1;
                 }
+                if (!strcmp(argv[i], "--nohttp")) {
+                        ctx.env.no_http = "1";
+                }
                 if (!strncmp(argv[i], "--query=", 8)) {
                         ctx.qry.raw = xstrdup(argv[i]+8);
                 }
                 if (!strncmp(argv[i], "--repo=", 7)) {
                         ctx.qry.repo = xstrdup(argv[i]+7);
                 }
                 if (!strncmp(argv[i], "--page=", 7)) {
                         ctx.qry.page = xstrdup(argv[i]+7);
                 }
                 if (!strncmp(argv[i], "--head=", 7)) {
                         ctx.qry.head = xstrdup(argv[i]+7);
                         ctx.qry.has_symref = 1;
@@ -422,68 +495,64 @@ static int calc_ttl()
 
         if (ctx.qry.has_symref)
                 return ctx.cfg.cache_dynamic_ttl;
 
         if (ctx.qry.has_sha1)
                 return ctx.cfg.cache_static_ttl;
 
         return ctx.cfg.cache_repo_ttl;
 }
 
 int main(int argc, const char **argv)
 {
-        const char *cgit_config_env = getenv("CGIT_CONFIG");
         const char *path;
         char *qry;
         int err, ttl;
 
         prepare_context(&ctx);
         cgit_repolist.length = 0;
         cgit_repolist.count = 0;
         cgit_repolist.repos = NULL;
 
-        if (getenv("SCRIPT_NAME"))
-                ctx.cfg.script_name = xstrdup(getenv("SCRIPT_NAME"));
-        if (getenv("QUERY_STRING"))
-                ctx.qry.raw = xstrdup(getenv("QUERY_STRING"));
         cgit_parse_args(argc, argv);
-        parse_configfile(cgit_config_env ? cgit_config_env : CGIT_CONFIG,
-                         config_cb);
+        parse_configfile(ctx.env.cgit_config, config_cb);
         ctx.repo = NULL;
         http_parse_querystring(ctx.qry.raw, querystring_cb);
 
         /* If virtual-root isn't specified in cgitrc, lets pretend
          * that virtual-root equals SCRIPT_NAME.
          */
         if (!ctx.cfg.virtual_root)
                 ctx.cfg.virtual_root = ctx.cfg.script_name;
 
         /* If no url parameter is specified on the querystring, lets
          * use PATH_INFO as url. This allows cgit to work with virtual
          * urls without the need for rewriterules in the webserver (as
          * long as PATH_INFO is included in the cache lookup key).
          */
-        path = getenv("PATH_INFO");
+        path = ctx.env.path_info;
         if (!ctx.qry.url && path) {
                 if (path[0] == '/')
                         path++;
                 ctx.qry.url = xstrdup(path);
                 if (ctx.qry.raw) {
                         qry = ctx.qry.raw;
                         ctx.qry.raw = xstrdup(fmt("%s?%s", path, qry));
                         free(qry);
                 } else
                         ctx.qry.raw = ctx.qry.url;
                 cgit_parse_url(ctx.qry.url);
         }
 
         ttl = calc_ttl();
         ctx.page.expires += ttl*60;
+        if (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))
+                ctx.cfg.nocache = 1;
         if (ctx.cfg.nocache)
                 ctx.cfg.cache_size = 0;
         err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,
                             ctx.qry.raw, ttl, process_request, &ctx);
         if (err)
                 cgit_print_error(fmt("Error processing page: %s (%d)",
                                      strerror(err), err));
         return err;
 }
diff --git a/cgit.css b/cgit.css
index adfc8ae..e3b32e7 100644
--- a/cgit.css
+++ b/cgit.css
@@ -146,25 +146,25 @@ table.list td {
         border: none;
         padding: 0.1em 0.5em 0.1em 0.5em;
 }
 
 table.list td.logsubject {
         font-family: monospace;
         font-weight: bold;
 }
 
 table.list td.logmsg {
         font-family: monospace;
         white-space: pre;
-        padding: 1em 0em 2em 0em;
+        padding: 1em 0.5em 2em 0.5em;
 }
 
 table.list td a {
         color: black;
 }
 
 table.list td a:hover {
         color: #00f;
 }
 
 img {
         border: none;
diff --git a/cgit.h b/cgit.h
index 5f7af51..d90ccdc 100644
--- a/cgit.h
+++ b/cgit.h
@@ -6,24 +6,25 @@
 #include <cache.h>
 #include <grep.h>
 #include <object.h>
 #include <tree.h>
 #include <commit.h>
 #include <tag.h>
 #include <diff.h>
 #include <diffcore.h>
 #include <refs.h>
 #include <revision.h>
 #include <log-tree.h>
 #include <archive.h>
+#include <string-list.h>
 #include <xdiff-interface.h>
 #include <xdiff/xdiff.h>
 #include <utf8.h>
 
 
 /*
  * Dateformats used on misc. pages
  */
 #define FMT_LONGDATE "%Y-%m-%d %H:%M:%S (%Z)"
 #define FMT_SHORTDATE "%Y-%m-%d"
 #define FMT_ATOMDATE "%Y-%m-%dT%H:%M:%SZ"
 
@@ -39,40 +40,52 @@
 #define TM_MONTH (TM_YEAR / 12.0)
 
 
 /*
  * Default encoding
  */
 #define PAGE_ENCODING "UTF-8"
 
 typedef void (*configfn)(const char *name, const char *value);
 typedef void (*filepair_fn)(struct diff_filepair *pair);
 typedef void (*linediff_fn)(char *line, int len);
 
+struct cgit_filter {
+        char *cmd;
+        char **argv;
+        int old_stdout;
+        int pipe_fh[2];
+        int pid;
+        int exitstatus;
+};
+
 struct cgit_repo {
         char *url;
         char *name;
         char *path;
         char *desc;
         char *owner;
         char *defbranch;
         char *group;
         char *module_link;
         char *readme;
         char *clone_url;
         int snapshots;
         int enable_log_filecount;
         int enable_log_linecount;
         int max_stats;
         time_t mtime;
+        struct cgit_filter *about_filter;
+        struct cgit_filter *commit_filter;
+        struct cgit_filter *source_filter;
 };
 
 struct cgit_repolist {
         int length;
         int count;
         struct cgit_repo *repos;
 };
 
 struct commitinfo {
         struct commit *commit;
         char *author;
         char *author_email;
@@ -127,72 +140,97 @@ struct cgit_query {
         int nohead;
         char *sort;
         int showmsg;
 };
 
 struct cgit_config {
         char *agefile;
         char *cache_root;
         char *clone_prefix;
         char *css;
         char *favicon;
         char *footer;
+        char *head_include;
         char *header;
         char *index_header;
         char *index_info;
         char *logo;
         char *logo_link;
         char *module_link;
         char *repo_group;
         char *robots;
         char *root_title;
         char *root_desc;
         char *root_readme;
         char *script_name;
         char *virtual_root;
         int cache_size;
         int cache_dynamic_ttl;
         int cache_max_create_time;
         int cache_repo_ttl;
         int cache_root_ttl;
         int cache_static_ttl;
+        int embedded;
         int enable_index_links;
         int enable_log_filecount;
         int enable_log_linecount;
         int local_time;
         int max_repo_count;
         int max_commit_count;
         int max_lock_attempts;
         int max_msg_len;
         int max_repodesc_len;
         int max_stats;
         int nocache;
+        int noplainemail;
+        int noheader;
         int renamelimit;
         int snapshots;
         int summary_branches;
         int summary_log;
         int summary_tags;
+        struct string_list mimetypes;
+        struct cgit_filter *about_filter;
+        struct cgit_filter *commit_filter;
+        struct cgit_filter *source_filter;
 };
 
 struct cgit_page {
         time_t modified;
         time_t expires;
         size_t size;
         char *mimetype;
         char *charset;
         char *filename;
+        char *etag;
         char *title;
+        int status;
+        char *statusmsg;
+};
+
+struct cgit_environment {
+        char *cgit_config;
+        char *http_host;
+        char *https;
+        char *no_http;
+        char *path_info;
+        char *query_string;
+        char *request_method;
+        char *script_name;
+        char *server_name;
+        char *server_port;
 };
 
 struct cgit_context {
+        struct cgit_environment env;
         struct cgit_query qry;
         struct cgit_config cfg;
         struct cgit_repo *repo;
         struct cgit_page page;
 };
 
 struct cgit_snapshot_format {
         const char *suffix;
         const char *mimetype;
         write_archive_fn_t write_func;
         int bit;
 };
@@ -233,14 +271,17 @@ extern void cgit_diff_tree(const unsigned char *old_sha1,
 extern void cgit_diff_commit(struct commit *commit, filepair_fn fn);
 
 extern char *fmt(const char *format,...);
 
 extern struct commitinfo *cgit_parse_commit(struct commit *commit);
 extern struct taginfo *cgit_parse_tag(struct tag *tag);
 extern void cgit_parse_url(const char *url);
 
 extern const char *cgit_repobasename(const char *reponame);
 
 extern int cgit_parse_snapshots_mask(const char *str);
 
+extern int cgit_open_filter(struct cgit_filter *filter);
+extern int cgit_close_filter(struct cgit_filter *filter);
+
 
 #endif /* CGIT_H */
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index fd299ae..3c35b02 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -1,273 +1,332 @@
-CGITRC
-======
+CGITRC(5)
+========
 
 
 NAME
 ----
-        cgitrc - runtime configuration for cgit
+cgitrc - runtime configuration for cgit
 
 
-DESCRIPTION
------------
+SYNOPSIS
+--------
 Cgitrc contains all runtime settings for cgit, including the list of git
 repositories, formatted as a line-separated list of NAME=VALUE pairs. Blank
 lines, and lines starting with '#', are ignored.
 
 
+LOCATION
+--------
+The default location of cgitrc, defined at compile time, is /etc/cgitrc. At
+runtime, cgit will consult the environment variable CGIT_CONFIG and, if
+defined, use its value instead.
+
+
 GLOBAL SETTINGS
 ---------------
-agefile
+about-filter::
+        Specifies a command which will be invoked to format the content of
+        about pages (both top-level and for each repository). The command will
+        get the content of the about-file on its STDIN, and the STDOUT from the
+        command will be included verbatim on the about page. Default value:
+        none.
+
+agefile::
         Specifies a path, relative to each repository path, which can be used
         to specify the date and time of the youngest commit in the repository.
         The first line in the file is used as input to the "parse_date"
         function in libgit. Recommended timestamp-format is "yyyy-mm-dd
         hh:mm:ss". Default value: "info/web/last-modified".
 
-cache-root
+cache-root::
         Path used to store the cgit cache entries. Default value:
         "/var/cache/cgit".
 
-cache-dynamic-ttl
+cache-dynamic-ttl::
         Number which specifies the time-to-live, in minutes, for the cached
         version of repository pages accessed without a fixed SHA1. Default
         value: "5".
 
-cache-repo-ttl
+cache-repo-ttl::
         Number which specifies the time-to-live, in minutes, for the cached
         version of the repository summary page. Default value: "5".
 
-cache-root-ttl
+cache-root-ttl::
         Number which specifies the time-to-live, in minutes, for the cached
         version of the repository index page. Default value: "5".
 
-cache-size
+cache-size::
         The maximum number of entries in the cgit cache. Default value: "0"
         (i.e. caching is disabled).
 
-cache-static-ttl
+cache-static-ttl::
         Number which specifies the time-to-live, in minutes, for the cached
         version of repository pages accessed with a fixed SHA1. Default value:
         "5".
 
-clone-prefix
+clone-prefix::
         Space-separated list of common prefixes which, when combined with a
         repository url, generates valid clone urls for the repository. This
         setting is only used if `repo.clone-url` is unspecified. Default value:
         none.
 
-css
+commit-filter::
+        Specifies a command which will be invoked to format commit messages.
+        The command will get the message on its STDIN, and the STDOUT from the
+        command will be included verbatim as the commit message, i.e. this can
+        be used to implement bugtracker integration. Default value: none.
+
+css::
         Url which specifies the css document to include in all cgit pages.
         Default value: "/cgit.css".
 
-enable-index-links
+embedded::
+        Flag which, when set to "1", will make cgit generate a html fragment
+        suitable for embedding in other html pages. Default value: none. See
+        also: "noheader".
+        
+enable-index-links::
         Flag which, when set to "1", will make cgit generate extra links for
         each repo in the repository index (specifically, to the "summary",
         "commit" and "tree" pages). Default value: "0".
 
-enable-log-filecount
+enable-log-filecount::
         Flag which, when set to "1", will make cgit print the number of
         modified files for each commit on the repository log page. Default
         value: "0".
 
-enable-log-linecount
+enable-log-linecount::
         Flag which, when set to "1", will make cgit print the number of added
         and removed lines for each commit on the repository log page. Default
         value: "0".
 
-favicon
+favicon::
         Url used as link to a shortcut icon for cgit. If specified, it is
         suggested to use the value "/favicon.ico" since certain browsers will
         ignore other values. Default value: none.
 
-footer
+footer::
         The content of the file specified with this option will be included
         verbatim at the bottom of all pages (i.e. it replaces the standard
         "generated by..." message. Default value: none.
 
-header
+head-include::
+        The content of the file specified with this option will be included
+        verbatim in the html HEAD section on all pages. Default value: none.
+
+header::
         The content of the file specified with this option will be included
         verbatim at the top of all pages. Default value: none.
 
-include
+include::
         Name of a configfile to include before the rest of the current config-
         file is parsed. Default value: none.
 
-index-header
+index-header::
         The content of the file specified with this option will be included
         verbatim above the repository index. This setting is deprecated, and
         will not be supported by cgit-1.0 (use root-readme instead). Default
         value: none.
 
-index-info
+index-info::
         The content of the file specified with this option will be included
         verbatim below the heading on the repository index page. This setting
         is deprecated, and will not be supported by cgit-1.0 (use root-desc
         instead). Default value: none.
 
-local-time
+local-time::
         Flag which, if set to "1", makes cgit print commit and tag times in the
         servers timezone. Default value: "0".
 
-logo
+logo::
         Url which specifies the source of an image which will be used as a logo
-        on all cgit pages.
+        on all cgit pages. Default value: "/cgit.png".
 
-logo-link
+logo-link::
         Url loaded when clicking on the cgit logo image. If unspecified the
         calculated url of the repository index page will be used. Default
         value: none.
 
-max-commit-count
+max-commit-count::
         Specifies the number of entries to list per page in "log" view. Default
         value: "50".
 
-max-message-length
+max-message-length::
         Specifies the maximum number of commit message characters to display in
         "log" view. Default value: "80".
 
-max-repo-count
+max-repo-count::
                 Specifies the number of entries to list per page on therepository
         index page. Default value: "50".
 
-max-repodesc-length
+max-repodesc-length::
         Specifies the maximum number of repo description characters to display
         on the repository index page. Default value: "80".
 
-max-stats
+max-stats::
         Set the default maximum statistics period. Valid values are "week",
         "month", "quarter" and "year". If unspecified, statistics are
         disabled. Default value: none. See also: "repo.max-stats".
 
-module-link
+mimetype.<ext>::
+        Set the mimetype for the specified filename extension. This is used
+        by the `plain` command when returning blob content.
+
+module-link::
         Text which will be used as the formatstring for a hyperlink when a
         submodule is printed in a directory listing. The arguments for the
         formatstring are the path and SHA1 of the submodule commit. Default
         value: "./?repo=%s&page=commit&id=%s"
 
-nocache
+nocache::
         If set to the value "1" caching will be disabled. This settings is
         deprecated, and will not be honored starting with cgit-1.0. Default
         value: "0".
 
-renamelimit
+noplainemail::
+        If set to "1" showing full author email adresses will be disabled.
+        Default value: "0".
+
+noheader::
+        Flag which, when set to "1", will make cgit omit the standard header
+        on all pages. Default value: none. See also: "embedded".
+
+renamelimit::
         Maximum number of files to consider when detecting renames. The value
          "-1" uses the compiletime value in git (for further info, look at
           `man git-diff`). Default value: "-1".
 
-repo.group
+repo.group::
         A value for the current repository group, which all repositories
         specified after this setting will inherit. Default value: none.
 
-robots
+robots::
         Text used as content for the "robots" meta-tag. Default value:
         "index, nofollow".
 
-root-desc
+root-desc::
         Text printed below the heading on the repository index page. Default
         value: "a fast webinterface for the git dscm".
 
-root-readme:
+root-readme::
         The content of the file specified with this option will be included
         verbatim below the "about" link on the repository index page. Default
         value: none.
 
-root-title
+root-title::
         Text printed as heading on the repository index page. Default value:
         "Git Repository Browser".
 
-snapshots
+snapshots::
         Text which specifies the default (and allowed) set of snapshot formats
         supported by cgit. The value is a space-separated list of zero or more
         of the following values:
                         "tar"   uncompressed tar-file
                         "tar.gz"gzip-compressed tar-file
                         "tar.bz2"bzip-compressed tar-file
                         "zip"   zip-file
         Default value: none.
 
-summary-branches
+source-filter::
+        Specifies a command which will be invoked to format plaintext blobs
+        in the tree view. The command will get the blob content on its STDIN
+        and the name of the blob as its only command line argument. The STDOUT
+        from the command will be included verbatim as the blob contents, i.e.
+        this can be used to implement e.g. syntax highlighting. Default value:
+        none.
+
+summary-branches::
         Specifies the number of branches to display in the repository "summary"
         view. Default value: "10".
 
-summary-log
+summary-log::
         Specifies the number of log entries to display in the repository
         "summary" view. Default value: "10".
 
-summary-tags
+summary-tags::
         Specifies the number of tags to display in the repository "summary"
         view. Default value: "10".
 
-virtual-root
+virtual-root::
         Url which, if specified, will be used as root for all cgit links. It
         will also cause cgit to generate 'virtual urls', i.e. urls like
         '/cgit/tree/README' as opposed to '?r=cgit&p=tree&path=README'. Default
         value: none.
         NOTE: cgit has recently learned how to use PATH_INFO to achieve the
         same kind of virtual urls, so this option will probably be deprecated.
 
 REPOSITORY SETTINGS
 -------------------
-repo.clone-url
+repo.about-filter::
+        Override the default about-filter. Default value: <about-filter>.
+
+repo.clone-url::
         A list of space-separated urls which can be used to clone this repo.
         Default value: none.
 
-repo.defbranch
+repo.commit-filter::
+        Override the default commit-filter. Default value: <commit-filter>.
+
+repo.defbranch::
         The name of the default branch for this repository. If no such branch
         exists in the repository, the first branch name (when sorted) is used
         as default instead. Default value: "master".
 
-repo.desc
+repo.desc::
         The value to show as repository description. Default value: none.
 
-repo.enable-log-filecount
+repo.enable-log-filecount::
         A flag which can be used to disable the global setting
         `enable-log-filecount'. Default value: none.
 
-repo.enable-log-linecount
+repo.enable-log-linecount::
         A flag which can be used to disable the global setting
         `enable-log-linecount'. Default value: none.
 
-repo.max-stats
+repo.max-stats::
         Override the default maximum statistics period. Valid values are equal
         to the values specified for the global "max-stats" setting. Default
         value: none.
 
-repo.name
+repo.name::
         The value to show as repository name. Default value: <repo.url>.
 
-repo.owner
+repo.owner::
         A value used to identify the owner of the repository. Default value:
         none.
 
-repo.path
+repo.path::
         An absolute path to the repository directory. For non-bare repositories
         this is the .git-directory. Default value: none.
 
-repo.readme
+repo.readme::
         A path (relative to <repo.path>) which specifies a file to include
         verbatim as the "About" page for this repo. Default value: none.
 
-repo.snapshots
+repo.snapshots::
         A mask of allowed snapshot-formats for this repo, restricted by the
         "snapshots" global setting. Default value: <snapshots>.
 
-repo.url
+repo.source-filter::
+        Override the default source-filter. Default value: <source-filter>.
+
+repo.url::
         The relative url used to access the repository. This must be the first
         setting specified for each repo. Default value: none.
 
 
 EXAMPLE CGITRC FILE
 -------------------
 
+....
 # Enable caching of up to 1000 output entriess
 cache-size=1000
 
 
 # Specify some default clone prefixes
 clone-prefix=git://foobar.com ssh://foobar.com/pub/git http://foobar.com/git
 
 # Specify the css url
 css=/css/cgit.css
 
 
 # Show extra links for each repository on the index page
@@ -302,24 +361,37 @@ root-title=foobar.com git repositories
 root-desc=tracking the foobar development
 
 
 # Include some more info about foobar.com on the index page
 root-readme=/var/www/htdocs/about.html
 
 
 # Allow download of tar.gz, tar.bz2 and zip-files
 snapshots=tar.gz tar.bz2 zip
 
 
 ##
+## List of common mimetypes
+##
+
+mimetype.git=image/git
+mimetype.html=text/html
+mimetype.jpg=image/jpeg
+mimetype.jpeg=image/jpeg
+mimetype.pdf=application/pdf
+mimetype.png=image/png
+mimetype.svg=image/svg+xml
+
+
+##
 ## List of repositories.
 ## PS: Any repositories listed when repo.group is unset will not be
 ##     displayed under a group heading
 ## PPS: This list could be kept in a different file (e.g. '/etc/cgitrepos')
 ##      and included like this:
 ##        include=/etc/cgitrepos
 ##
 
 
 repo.url=foo
 repo.path=/pub/git/foo.git
 repo.desc=the master foo repository
@@ -359,24 +431,25 @@ repo.desc=the dscm
 repo.url=linux
 repo.path=/pub/git/linux.git
 repo.desc=the kernel
 
 # Disable adhoc downloads of this repo
 repo.snapshots=0
 
 # Disable line-counts for this repo
 repo.enable-log-linecount=0
 
 # Restrict the max statistics period for this repo
 repo.max-stats=month
+....
 
 
 BUGS
 ----
 Comments currently cannot appear on the same line as a setting; the comment
 will be included as part of the value. E.g. this line:
 
         robots=index  # allow indexing
 
 will generate the following html element:
 
         <meta name='robots' content='index  # allow indexing'/>
diff --git a/cmd.c b/cmd.c
index cf97da7..766f903 100644
--- a/cmd.c
+++ b/cmd.c
@@ -30,25 +30,25 @@ static void HEAD_fn(struct cgit_context *ctx)
 {
         cgit_clone_head(ctx);
 }
 
 static void atom_fn(struct cgit_context *ctx)
 {
         cgit_print_atom(ctx->qry.head, ctx->qry.path, 10);
 }
 
 static void about_fn(struct cgit_context *ctx)
 {
         if (ctx->repo)
-                cgit_print_repo_readme();
+                cgit_print_repo_readme(ctx->qry.path);
         else
                 cgit_print_site_readme();
 }
 
 static void blob_fn(struct cgit_context *ctx)
 {
         cgit_print_blob(ctx->qry.sha1, ctx->qry.path, ctx->qry.head);
 }
 
 static void commit_fn(struct cgit_context *ctx)
 {
         cgit_print_commit(ctx->qry.sha1);
diff --git a/filters/commit-links.sh b/filters/commit-links.sh
new file mode 100755
index 0000000..165a533
--- a/dev/null
+++ b/filters/commit-links.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+# This script can be used to generate links in commit messages - the first
+# sed expression generates links to commits referenced by their SHA1, while
+# the second expression generates links to a fictional bugtracker.
+#
+# To use this script, refer to this file with either the commit-filter or the
+# repo.commit-filter options in cgitrc.
+
+sed -re '
+s|\b([0-9a-fA-F]{8,40})\b|<a href="./?id=\1">\1</a>|g
+s| #([0-9]+)\b|<a href="http://bugs.example.com/?bug=\1">#\1</a>|g
+'
diff --git a/filters/syntax-highlighting.sh b/filters/syntax-highlighting.sh
new file mode 100755
index 0000000..999ad0c
--- a/dev/null
+++ b/filters/syntax-highlighting.sh
@@ -0,0 +1,39 @@
+#!/bin/sh
+# This script can be used to implement syntax highlighting in the cgit
+# tree-view by refering to this file with the source-filter or repo.source-
+# filter options in cgitrc.
+#
+# Note: the highlight command (http://www.andre-simon.de/) uses css for syntax
+# highlighting, so you'll probably want something like the following included
+# in your css file (generated by highlight 2.4.8 and adapted for cgit):
+#
+# table.blob .num  { color:#2928ff; }
+# table.blob .esc  { color:#ff00ff; }
+# table.blob .str  { color:#ff0000; }
+# table.blob .dstr { color:#818100; }
+# table.blob .slc  { color:#838183; font-style:italic; }
+# table.blob .com  { color:#838183; font-style:italic; }
+# table.blob .dir  { color:#008200; }
+# table.blob .sym  { color:#000000; }
+# table.blob .kwa  { color:#000000; font-weight:bold; }
+# table.blob .kwb  { color:#830000; }
+# table.blob .kwc  { color:#000000; font-weight:bold; }
+# table.blob .kwd  { color:#010181; }
+
+case "$1" in
+        *.c)
+                highlight -f -I -X -S c
+                ;;
+        *.h)
+                highlight -f -I -X -S c
+                ;;
+        *.sh)
+                highlight -f -I -X -S sh
+                ;;
+        *.css)
+                highlight -f -I -X -S css
+                ;;
+        *)
+                highlight -f -I -X -S txt
+                ;;
+esac
diff --git a/git b/git
-Subproject 5c415311f743ccb11a50f350ff1c385778f049d
+Subproject e276f018f2c1f0fc962fbe44a36708d1cdebada
diff --git a/shared.c b/shared.c
index cce0af4..911a55a 100644
--- a/shared.c
+++ b/shared.c
@@ -53,24 +53,27 @@ struct cgit_repo *cgit_add_repo(const char *url)
         ret->path = NULL;
         ret->desc = "[no description]";
         ret->owner = NULL;
         ret->group = ctx.cfg.repo_group;
         ret->defbranch = "master";
         ret->snapshots = ctx.cfg.snapshots;
         ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
         ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
         ret->max_stats = ctx.cfg.max_stats;
         ret->module_link = ctx.cfg.module_link;
         ret->readme = NULL;
         ret->mtime = -1;
+        ret->about_filter = ctx.cfg.about_filter;
+        ret->commit_filter = ctx.cfg.commit_filter;
+        ret->source_filter = ctx.cfg.source_filter;
         return ret;
 }
 
 struct cgit_repo *cgit_get_repoinfo(const char *url)
 {
         int i;
         struct cgit_repo *repo;
 
         for (i=0; i<cgit_repolist.count; i++) {
                 repo = &cgit_repolist.repos[i];
                 if (!strcmp(repo->url, url))
                         return repo;
@@ -346,12 +349,47 @@ int cgit_parse_snapshots_mask(const char *str)
                 for (f = cgit_snapshot_formats; f->suffix; f++) {
                         sl = strlen(f->suffix);
                         if((tl == sl && !strncmp(f->suffix, str, tl)) ||
                            (tl == sl-1 && !strncmp(f->suffix+1, str, tl-1))) {
                                 rv |= f->bit;
                                 break;
                         }
                 }
                 str += tl;
         }
         return rv;
 }
+
+int cgit_open_filter(struct cgit_filter *filter)
+{
+
+        filter->old_stdout = chk_positive(dup(STDOUT_FILENO),
+                "Unable to duplicate STDOUT");
+        chk_zero(pipe(filter->pipe_fh), "Unable to create pipe to subprocess");
+        filter->pid = chk_non_negative(fork(), "Unable to create subprocess");
+        if (filter->pid == 0) {
+                close(filter->pipe_fh[1]);
+                chk_non_negative(dup2(filter->pipe_fh[0], STDIN_FILENO),
+                        "Unable to use pipe as STDIN");
+                execvp(filter->cmd, filter->argv);
+                die("Unable to exec subprocess %s: %s (%d)", filter->cmd,
+                        strerror(errno), errno);
+        }
+        close(filter->pipe_fh[0]);
+        chk_non_negative(dup2(filter->pipe_fh[1], STDOUT_FILENO),
+                "Unable to use pipe as STDOUT");
+        close(filter->pipe_fh[1]);
+        return 0;
+}
+
+int cgit_close_filter(struct cgit_filter *filter)
+{
+        chk_non_negative(dup2(filter->old_stdout, STDOUT_FILENO),
+                "Unable to restore STDOUT");
+        close(filter->old_stdout);
+        if (filter->pid < 0)
+                return 0;
+        waitpid(filter->pid, &filter->exitstatus, 0);
+        if (WIFEXITED(filter->exitstatus) && !WEXITSTATUS(filter->exitstatus))
+                return 0;
+        die("Subprocess %s exited abnormally", filter->cmd);
+}
diff --git a/ui-atom.c b/ui-atom.c
index a6ea3ee..808b2d0 100644
--- a/ui-atom.c
+++ b/ui-atom.c
@@ -23,45 +23,46 @@ void add_entry(struct commit *commit, char *host)
         html("<title>");
         html_txt(info->subject);
         html("</title>\n");
         html("<updated>");
         cgit_print_date(info->author_date, FMT_ATOMDATE, ctx.cfg.local_time);
         html("</updated>\n");
         html("<author>\n");
         if (info->author) {
                 html("<name>");
                 html_txt(info->author);
                 html("</name>\n");
         }
-        if (info->author_email) {
+        if (info->author_email && !ctx.cfg.noplainemail) {
                 mail = xstrdup(info->author_email);
                 t = strchr(mail, '<');
                 if (t)
                         t++;
                 else
                         t = mail;
                 t2 = strchr(t, '>');
                 if (t2)
                         *t2 = '\0';
                 html("<email>");
                 html_txt(t);
                 html("</email>\n");
                 free(mail);
         }
         html("</author>\n");
         html("<published>");
         cgit_print_date(info->author_date, FMT_ATOMDATE, ctx.cfg.local_time);
         html("</published>\n");
         if (host) {
-                html("<link rel='alternate' type='text/html' href='http://");
+                html("<link rel='alternate' type='text/html' href='");
+                html(cgit_httpscheme());
                 html_attr(host);
                 html_attr(cgit_pageurl(ctx.repo->url, "commit", NULL));
                 if (ctx.cfg.virtual_root)
                         delim = '?';
                 htmlf("%cid=%s", delim, hex);
                 html("'/>\n");
         }
         htmlf("<id>%s</id>\n", hex);
         html("<content type='text'>\n");
         html_txt(info->msg);
         html("</content>\n");
         html("<content type='xhtml'>\n");
@@ -104,25 +105,26 @@ void cgit_print_atom(char *tip, char *path, int max_count)
         host = cgit_hosturl();
         ctx.page.mimetype = "text/xml";
         ctx.page.charset = "utf-8";
         cgit_print_http_headers(&ctx);
         html("<feed xmlns='http://www.w3.org/2005/Atom'>\n");
         html("<title>");
         html_txt(ctx.repo->name);
         html("</title>\n");
         html("<subtitle>");
         html_txt(ctx.repo->desc);
         html("</subtitle>\n");
         if (host) {
-                html("<link rel='alternate' type='text/html' href='http://");
+                html("<link rel='alternate' type='text/html' href='");
+                html(cgit_httpscheme());
                 html_attr(host);
                 html_attr(cgit_repourl(ctx.repo->url));
                 html("'/>\n");
         }
         while ((commit = get_revision(&rev)) != NULL) {
                 add_entry(commit, host);
                 free(commit->buffer);
                 commit->buffer = NULL;
                 free_commit_list(commit->parents);
                 commit->parents = NULL;
         }
         html("</feed>\n");
diff --git a/ui-blob.c b/ui-blob.c
index 3cda03d..2ccd31d 100644
--- a/ui-blob.c
+++ b/ui-blob.c
@@ -18,25 +18,25 @@ static int walk_tree(const unsigned char *sha1, const char *base,int baselen,
         if(strncmp(base,match_path,baselen)
                 || strcmp(match_path+baselen,pathname) )
                 return READ_TREE_RECURSIVE;
         memmove(matched_sha1,sha1,20);
         return 0;
 }
 
 void cgit_print_blob(const char *hex, char *path, const char *head)
 {
 
         unsigned char sha1[20];
         enum object_type type;
-        unsigned char *buf;
+        char *buf;
         unsigned long size;
         struct commit *commit;
         const char *paths[] = {path, NULL};
 
         if (hex) {
                 if (get_sha1_hex(hex, sha1)){
                         cgit_print_error(fmt("Bad hex value: %s", hex));
                         return;
                 }
         } else {
                 if (get_sha1(head,sha1)) {
                         cgit_print_error(fmt("Bad ref: %s", head));
@@ -58,16 +58,22 @@ void cgit_print_blob(const char *hex, char *path, const char *head)
                 cgit_print_error(fmt("Bad object name: %s", hex));
                 return;
         }
 
         buf = read_sha1_file(sha1, &type, &size);
         if (!buf) {
                 cgit_print_error(fmt("Error reading object %s", hex));
                 return;
         }
 
         buf[size] = '\0';
         ctx.page.mimetype = ctx.qry.mimetype;
+        if (!ctx.page.mimetype) {
+                if (buffer_is_binary(buf, size))
+                        ctx.page.mimetype = "application/octet-stream";
+                else
+                        ctx.page.mimetype = "text/plain";
+        }
         ctx.page.filename = path;
         cgit_print_http_headers(&ctx);
         write(htmlfd, buf, size);
 }
diff --git a/ui-commit.c b/ui-commit.c
index 41ce70e..d6b73ee 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -31,33 +31,37 @@ void cgit_print_commit(char *hex)
         commit = lookup_commit_reference(sha1);
         if (!commit) {
                 cgit_print_error(fmt("Bad commit reference: %s", hex));
                 return;
         }
         info = cgit_parse_commit(commit);
 
         load_ref_decorations();
 
         html("<table summary='commit info' class='commit-info'>\n");
         html("<tr><th>author</th><td>");
         html_txt(info->author);
-        html(" ");
-        html_txt(info->author_email);
+        if (!ctx.cfg.noplainemail) {
+                html(" ");
+                html_txt(info->author_email);
+        }
         html("</td><td class='right'>");
         cgit_print_date(info->author_date, FMT_LONGDATE, ctx.cfg.local_time);
         html("</td></tr>\n");
         html("<tr><th>committer</th><td>");
         html_txt(info->committer);
-        html(" ");
-        html_txt(info->committer_email);
+        if (!ctx.cfg.noplainemail) {
+                html(" ");
+                html_txt(info->committer_email);
+        }
         html("</td><td class='right'>");
         cgit_print_date(info->committer_date, FMT_LONGDATE, ctx.cfg.local_time);
         html("</td></tr>\n");
         html("<tr><th>commit</th><td colspan='2' class='sha1'>");
         tmp = sha1_to_hex(commit->object.sha1);
         cgit_commit_link(tmp, NULL, NULL, ctx.qry.head, tmp);
         html(" (");
         cgit_patch_link("patch", NULL, NULL, NULL, tmp);
         html(")</td></tr>\n");
         html("<tr><th>tree</th><td colspan='2' class='sha1'>");
         tmp = xstrdup(hex);
         cgit_tree_link(sha1_to_hex(commit->tree->object.sha1), NULL, NULL,
@@ -80,27 +84,35 @@ void cgit_print_commit(char *hex)
                                sha1_to_hex(p->item->object.sha1), NULL);
                 html(")</td></tr>");
                 parents++;
         }
         if (ctx.repo->snapshots) {
                 html("<tr><th>download</th><td colspan='2' class='sha1'>");
                 cgit_print_snapshot_links(ctx.qry.repo, ctx.qry.head,
                                           hex, ctx.repo->snapshots);
                 html("</td></tr>");
         }
         html("</table>\n");
         html("<div class='commit-subject'>");
+        if (ctx.repo->commit_filter)
+                cgit_open_filter(ctx.repo->commit_filter);
         html_txt(info->subject);
+        if (ctx.repo->commit_filter)
+                cgit_close_filter(ctx.repo->commit_filter);
         show_commit_decorations(commit);
         html("</div>");
         html("<div class='commit-msg'>");
+        if (ctx.repo->commit_filter)
+                cgit_open_filter(ctx.repo->commit_filter);
         html_txt(info->msg);
+        if (ctx.repo->commit_filter)
+                cgit_close_filter(ctx.repo->commit_filter);
         html("</div>");
         if (parents < 3) {
                 if (parents)
                         tmp = sha1_to_hex(commit->parents->item->object.sha1);
                 else
                         tmp = NULL;
                 cgit_print_diff(ctx.qry.sha1, tmp, NULL);
         }
         cgit_free_commitinfo(info);
 }
diff --git a/ui-log.c b/ui-log.c
index ba2ab03..0b37785 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -44,24 +44,28 @@ void show_commit_decorations(struct commit *commit)
         buf[sizeof(buf) - 1] = 0;
         deco = lookup_decoration(&name_decoration, &commit->object);
         while (deco) {
                 if (!prefixcmp(deco->name, "refs/heads/")) {
                         strncpy(buf, deco->name + 11, sizeof(buf) - 1);
                         cgit_log_link(buf, NULL, "branch-deco", buf, NULL, NULL,
                                 0, NULL, NULL, ctx.qry.showmsg);
                 }
                 else if (!prefixcmp(deco->name, "tag: refs/tags/")) {
                         strncpy(buf, deco->name + 15, sizeof(buf) - 1);
                         cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
                 }
+                else if (!prefixcmp(deco->name, "refs/tags/")) {
+                        strncpy(buf, deco->name + 10, sizeof(buf) - 1);
+                        cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
+                }
                 else if (!prefixcmp(deco->name, "refs/remotes/")) {
                         strncpy(buf, deco->name + 13, sizeof(buf) - 1);
                         cgit_log_link(buf, NULL, "remote-deco", NULL,
                                 sha1_to_hex(commit->object.sha1), NULL,
                                 0, NULL, NULL, ctx.qry.showmsg);
                 }
                 else {
                         strncpy(buf, deco->name, sizeof(buf) - 1);
                         cgit_commit_link(buf, NULL, "deco", ctx.qry.head,
                                 sha1_to_hex(commit->object.sha1));
                 }
                 deco = deco->next;
diff --git a/ui-patch.c b/ui-patch.c
index 5d665d3..2a8f7a5 100644
--- a/ui-patch.c
+++ b/ui-patch.c
@@ -99,25 +99,29 @@ void cgit_print_patch(char *hex)
         info = cgit_parse_commit(commit);
 
         if (commit->parents && commit->parents->item)
                 hashcpy(old_sha1, commit->parents->item->object.sha1);
         else
                 hashclr(old_sha1);
 
         patchname = fmt("%s.patch", sha1_to_hex(sha1));
         ctx.page.mimetype = "text/plain";
         ctx.page.filename = patchname;
         cgit_print_http_headers(&ctx);
         htmlf("From %s Mon Sep 17 00:00:00 2001\n", sha1_to_hex(sha1));
-        htmlf("From: %s %s\n", info->author, info->author_email);
+        htmlf("From: %s", info->author);
+        if (!ctx.cfg.noplainemail) {
+                htmlf(" %s", info->author_email);
+        }
+        html("\n");
         html("Date: ");
         cgit_print_date(info->author_date, "%a, %d %b %Y %H:%M:%S %z%n", ctx.cfg.local_time);
         htmlf("Subject: %s\n\n", info->subject);
         if (info->msg && *info->msg) {
                 htmlf("%s", info->msg);
                 if (info->msg[strlen(info->msg) - 1] != '\n')
                         html("\n");
         }
         html("---\n");
         cgit_diff_tree(old_sha1, sha1, filepair_cb, NULL);
         html("--\n");
         htmlf("cgit %s\n", CGIT_VERSION);
diff --git a/ui-plain.c b/ui-plain.c
index 5addd9e..27c6dae 100644
--- a/ui-plain.c
+++ b/ui-plain.c
@@ -8,41 +8,55 @@
 
 #include "cgit.h"
 #include "html.h"
 #include "ui-shared.h"
 
 char *curr_rev;
 char *match_path;
 int match;
 
 static void print_object(const unsigned char *sha1, const char *path)
 {
         enum object_type type;
-        char *buf;
+        char *buf, *ext;
         unsigned long size;
+        struct string_list_item *mime;
 
         type = sha1_object_info(sha1, &size);
         if (type == OBJ_BAD) {
                 html_status(404, "Not found", 0);
                 return;
         }
 
         buf = read_sha1_file(sha1, &type, &size);
         if (!buf) {
                 html_status(404, "Not found", 0);
                 return;
         }
-        ctx.page.mimetype = "text/plain";
+        ctx.page.mimetype = NULL;
+        ext = strrchr(path, '.');
+        if (ext && *(++ext)) {
+                mime = string_list_lookup(ext, &ctx.cfg.mimetypes);
+                if (mime)
+                        ctx.page.mimetype = (char *)mime->util;
+        }
+        if (!ctx.page.mimetype) {
+                if (buffer_is_binary(buf, size))
+                        ctx.page.mimetype = "application/octet-stream";
+                else
+                        ctx.page.mimetype = "text/plain";
+        }
         ctx.page.filename = fmt("%s", path);
         ctx.page.size = size;
+        ctx.page.etag = sha1_to_hex(sha1);
         cgit_print_http_headers(&ctx);
         html_raw(buf, size);
         match = 1;
 }
 
 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
                      const char *pathname, unsigned mode, int stage,
                      void *cbdata)
 {
         if (S_ISDIR(mode))
                 return READ_TREE_RECURSIVE;
 
diff --git a/ui-refs.c b/ui-refs.c
index 25da00a..d3b4f6e 100644
--- a/ui-refs.c
+++ b/ui-refs.c
@@ -37,26 +37,37 @@ static int cmp_ref_name(const void *a, const void *b)
 static int cmp_branch_age(const void *a, const void *b)
 {
         struct refinfo *r1 = *(struct refinfo **)a;
         struct refinfo *r2 = *(struct refinfo **)b;
 
         return cmp_age(r1->commit->committer_date, r2->commit->committer_date);
 }
 
 static int cmp_tag_age(const void *a, const void *b)
 {
         struct refinfo *r1 = *(struct refinfo **)a;
         struct refinfo *r2 = *(struct refinfo **)b;
+        int r1date, r2date;
 
-        return cmp_age(r1->tag->tagger_date, r2->tag->tagger_date);
+        if (r1->object->type != OBJ_COMMIT)
+                r1date = r1->tag->tagger_date;
+        else
+                r1date = r1->commit->committer_date;
+
+        if (r2->object->type != OBJ_COMMIT)
+                r2date = r2->tag->tagger_date;
+        else
+                r2date = r2->commit->committer_date;
+
+        return cmp_age(r1date, r2date);
 }
 
 static int print_branch(struct refinfo *ref)
 {
         struct commitinfo *info = ref->commit;
         char *name = (char *)ref->refname;
 
         if (!info)
                 return 1;
         html("<tr><td>");
         cgit_log_link(name, NULL, NULL, name, NULL, NULL, 0, NULL, NULL,
                       ctx.qry.showmsg);
@@ -136,24 +147,30 @@ static int print_tag(struct refinfo *ref)
                         cgit_print_age(info->tagger_date, -1, NULL);
                 html("</td></tr>\n");
         } else {
                 if (!header)
                         print_tag_header();
                 html("<tr><td>");
                 cgit_tag_link(name, NULL, NULL, ctx.qry.head, name);
                 html("</td><td>");
                 if (ctx.repo->snapshots && (ref->object->type == OBJ_COMMIT))
                         print_tag_downloads(ctx.repo, name);
                 else
                         cgit_object_link(ref->object);
+                html("</td><td>");
+                if (ref->object->type == OBJ_COMMIT)
+                        html(ref->commit->author);
+                html("</td><td colspan='2'>");
+                if (ref->object->type == OBJ_COMMIT)
+                        cgit_print_age(ref->commit->commit->date, -1, NULL);
                 html("</td></tr>\n");
         }
         return 0;
 }
 
 static void print_refs_link(char *path)
 {
         html("<tr class='nohover'><td colspan='4'>");
         cgit_refs_link("[...]", NULL, NULL, ctx.qry.head, NULL, path);
         html("</td></tr>");
 }
 
diff --git a/ui-repolist.c b/ui-repolist.c
index 2c13d50..25f076f 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -264,15 +264,20 @@ void cgit_print_repolist()
                 html("</tr>\n");
         }
         html("</table>");
         if (!hits)
                 cgit_print_error("No repositories found");
         else if (hits > ctx.cfg.max_repo_count)
                 print_pager(hits, ctx.cfg.max_repo_count, ctx.qry.search);
         cgit_print_docend();
 }
 
 void cgit_print_site_readme()
 {
-        if (ctx.cfg.root_readme)
-                html_include(ctx.cfg.root_readme);
+        if (!ctx.cfg.root_readme)
+                return;
+        if (ctx.cfg.about_filter)
+                cgit_open_filter(ctx.cfg.about_filter);
+        html_include(ctx.cfg.root_readme);
+        if (ctx.cfg.about_filter)
+                cgit_close_filter(ctx.cfg.about_filter);
 }
diff --git a/ui-shared.c b/ui-shared.c
index de77bbf..cf06511 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -25,42 +25,41 @@ static char *http_date(time_t t)
         return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
                    tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
                    tm->tm_hour, tm->tm_min, tm->tm_sec);
 }
 
 void cgit_print_error(char *msg)
 {
         html("<div class='error'>");
         html_txt(msg);
         html("</div>\n");
 }
 
-char *cgit_hosturl()
+char *cgit_httpscheme()
 {
-        char *host, *port;
+        if (ctx.env.https && !strcmp(ctx.env.https, "on"))
+                return "https://";
+        else
+                return "http://";
+}
 
-        host = getenv("HTTP_HOST");
-        if (host) {
-                host = xstrdup(host);
-        } else {
-                host = getenv("SERVER_NAME");
-                if (!host)
-                        return NULL;
-                port = getenv("SERVER_PORT");
-                if (port && atoi(port) != 80)
-                        host = xstrdup(fmt("%s:%d", host, atoi(port)));
-                else
-                        host = xstrdup(host);
-        }
-        return host;
+char *cgit_hosturl()
+{
+        if (ctx.env.http_host)
+                return ctx.env.http_host;
+        if (!ctx.env.server_name)
+                return NULL;
+        if (!ctx.env.server_port || atoi(ctx.env.server_port) == 80)
+                return ctx.env.server_name;
+        return xstrdup(fmt("%s:%s", ctx.env.server_name, ctx.env.server_port));
 }
 
 char *cgit_rooturl()
 {
         if (ctx.cfg.virtual_root)
                 return fmt("%s/", ctx.cfg.virtual_root);
         else
                 return ctx.cfg.script_name;
 }
 
 char *cgit_repourl(const char *reponame)
 {
@@ -447,83 +446,108 @@ void cgit_print_age(time_t t, time_t max_relative, char *format)
         }
         if (secs < TM_YEAR * 2) {
                 htmlf("<span class='age-months'>%.0f months</span>",
                       secs * 1.0 / TM_MONTH);
                 return;
         }
         htmlf("<span class='age-years'>%.0f years</span>",
               secs * 1.0 / TM_YEAR);
 }
 
 void cgit_print_http_headers(struct cgit_context *ctx)
 {
+        if (ctx->env.no_http && !strcmp(ctx->env.no_http, "1"))
+                return;
+
+        if (ctx->page.status)
+                htmlf("Status: %d %s\n", ctx->page.status, ctx->page.statusmsg);
         if (ctx->page.mimetype && ctx->page.charset)
                 htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
                       ctx->page.charset);
         else if (ctx->page.mimetype)
                 htmlf("Content-Type: %s\n", ctx->page.mimetype);
         if (ctx->page.size)
                 htmlf("Content-Length: %ld\n", ctx->page.size);
         if (ctx->page.filename)
                 htmlf("Content-Disposition: inline; filename=\"%s\"\n",
                       ctx->page.filename);
         htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
         htmlf("Expires: %s\n", http_date(ctx->page.expires));
+        if (ctx->page.etag)
+                htmlf("ETag: \"%s\"\n", ctx->page.etag);
         html("\n");
+        if (ctx->env.request_method && !strcmp(ctx->env.request_method, "HEAD"))
+                exit(0);
 }
 
 void cgit_print_docstart(struct cgit_context *ctx)
 {
+        if (ctx->cfg.embedded) {
+                if (ctx->cfg.header)
+                        html_include(ctx->cfg.header);
+                return;
+        }
+
         char *host = cgit_hosturl();
         html(cgit_doctype);
         html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
         html("<head>\n");
         html("<title>");
         html_txt(ctx->page.title);
         html("</title>\n");
         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
         if (ctx->cfg.robots && *ctx->cfg.robots)
                 htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
         html("<link rel='stylesheet' type='text/css' href='");
         html_attr(ctx->cfg.css);
         html("'/>\n");
         if (ctx->cfg.favicon) {
                 html("<link rel='shortcut icon' href='");
                 html_attr(ctx->cfg.favicon);
                 html("'/>\n");
         }
         if (host && ctx->repo) {
-                html("<link rel='alternate' title='Atom feed' href='http://");
+                html("<link rel='alternate' title='Atom feed' href='");
+                html(cgit_httpscheme());
                 html_attr(cgit_hosturl());
                 html_attr(cgit_fileurl(ctx->repo->url, "atom", ctx->qry.path,
                                        fmt("h=%s", ctx->qry.head)));
-                html("' type='application/atom+xml'/>");
+                html("' type='application/atom+xml'/>\n");
         }
+        if (ctx->cfg.head_include)
+                html_include(ctx->cfg.head_include);
         html("</head>\n");
         html("<body>\n");
         if (ctx->cfg.header)
                 html_include(ctx->cfg.header);
 }
 
 void cgit_print_docend()
 {
-        html("</div>");
+        html("</div> <!-- class=content -->\n");
+        if (ctx.cfg.embedded) {
+                html("</div> <!-- id=cgit -->\n");
+                if (ctx.cfg.footer)
+                        html_include(ctx.cfg.footer);
+                return;
+        }
         if (ctx.cfg.footer)
                 html_include(ctx.cfg.footer);
         else {
                 htmlf("<div class='footer'>generated  by cgit %s at ",
                         cgit_version);
                 cgit_print_date(time(NULL), FMT_LONGDATE, ctx.cfg.local_time);
                 html("</div>\n");
         }
+        html("</div> <!-- id=cgit -->\n");
         html("</body>\n</html>\n");
 }
 
 int print_branch_option(const char *refname, const unsigned char *sha1,
                         int flags, void *cb_data)
 {
         char *name = (char *)refname;
         html_option(name, name, ctx.qry.head);
         return 0;
 }
 
 int print_archive_ref(const char *refname, const unsigned char *sha1,
@@ -593,31 +617,26 @@ void cgit_add_hidden_formfields(int incl_head, int incl_search, char *page)
                 if (ctx.qry.search)
                         html_hidden("q", ctx.qry.search);
         }
 }
 
 const char *fallback_cmd = "repolist";
 
 char *hc(struct cgit_cmd *cmd, const char *page)
 {
         return (strcmp(cmd ? cmd->name : fallback_cmd, page) ? NULL : "active");
 }
 
-void cgit_print_pageheader(struct cgit_context *ctx)
+static void print_header(struct cgit_context *ctx)
 {
-        struct cgit_cmd *cmd = cgit_get_cmd(ctx);
-
-        if (!cmd && ctx->repo)
-                fallback_cmd = "summary";
-
         html("<table id='header'>\n");
         html("<tr>\n");
         html("<td class='logo' rowspan='2'><a href='");
         if (ctx->cfg.logo_link)
                 html_attr(ctx->cfg.logo_link);
         else
                 html_attr(cgit_rooturl());
         html("'><img src='");
         html_attr(ctx->cfg.logo);
         html("' alt='cgit logo'/></a></td>\n");
 
         html("<td class='main'>");
@@ -640,24 +659,36 @@ void cgit_print_pageheader(struct cgit_context *ctx)
         html("<tr><td class='sub'>");
         if (ctx->repo) {
                 html_txt(ctx->repo->desc);
                 html("</td><td class='sub right'>");
                 html_txt(ctx->repo->owner);
         } else {
                 if (ctx->cfg.root_desc)
                         html_txt(ctx->cfg.root_desc);
                 else if (ctx->cfg.index_info)
                         html_include(ctx->cfg.index_info);
         }
         html("</td></tr></table>\n");
+}
+
+void cgit_print_pageheader(struct cgit_context *ctx)
+{
+        struct cgit_cmd *cmd = cgit_get_cmd(ctx);
+
+        if (!cmd && ctx->repo)
+                fallback_cmd = "summary";
+
+        html("<div id='cgit'>");
+        if (!ctx->cfg.noheader)
+                print_header(ctx);
 
         html("<table class='tabs'><tr><td>\n");
         if (ctx->repo) {
                 cgit_summary_link("summary", NULL, hc(cmd, "summary"),
                                   ctx->qry.head);
                 cgit_refs_link("refs", NULL, hc(cmd, "refs"), ctx->qry.head,
                                ctx->qry.sha1, NULL);
                 cgit_log_link("log", NULL, hc(cmd, "log"), ctx->qry.head,
                               NULL, NULL, 0, NULL, NULL, ctx->qry.showmsg);
                 cgit_tree_link("tree", NULL, hc(cmd, "tree"), ctx->qry.head,
                                ctx->qry.sha1, NULL);
                 cgit_commit_link("commit", NULL, hc(cmd, "commit"),
diff --git a/ui-shared.h b/ui-shared.h
index 5a3821f..bff4826 100644
--- a/ui-shared.h
+++ b/ui-shared.h
@@ -1,15 +1,16 @@
 #ifndef UI_SHARED_H
 #define UI_SHARED_H
 
+extern char *cgit_httpscheme();
 extern char *cgit_hosturl();
 extern char *cgit_repourl(const char *reponame);
 extern char *cgit_fileurl(const char *reponame, const char *pagename,
                           const char *filename, const char *query);
 extern char *cgit_pageurl(const char *reponame, const char *pagename,
                           const char *query);
 
 extern void cgit_index_link(char *name, char *title, char *class,
                             char *pattern, int ofs);
 extern void cgit_summary_link(char *name, char *title, char *class, char *head);
 extern void cgit_tag_link(char *name, char *title, char *class, char *head,
                           char *rev);
diff --git a/ui-snapshot.c b/ui-snapshot.c
index 5372f5d..4136b3e 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -3,55 +3,34 @@
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 #include "html.h"
 #include "ui-shared.h"
 
 static int write_compressed_tar_archive(struct archiver_args *args,const char *filter)
 {
-        int rw[2];
-        pid_t gzpid;
-        int stdout2;
-        int status;
         int rv;
+        struct cgit_filter f;
 
-        stdout2 = chk_non_negative(dup(STDIN_FILENO), "Preserving STDOUT before compressing");
-        chk_zero(pipe(rw), "Opening pipe from compressor subprocess");
-        gzpid = chk_non_negative(fork(), "Forking compressor subprocess");
-        if(gzpid==0) {
-                /* child */
-                chk_zero(close(rw[1]), "Closing write end of pipe in child");
-                chk_zero(close(STDIN_FILENO), "Closing STDIN");
-                chk_non_negative(dup2(rw[0],STDIN_FILENO), "Redirecting compressor input to stdin");
-                execlp(filter,filter,NULL);
-                _exit(-1);
-        }
-        /* parent */
-        chk_zero(close(rw[0]), "Closing read end of pipe");
-        chk_non_negative(dup2(rw[1],STDOUT_FILENO), "Redirecting output to compressor");
-
+        f.cmd = xstrdup(filter);
+        f.argv = malloc(2 * sizeof(char *));
+        f.argv[0] = f.cmd;
+        f.argv[1] = NULL;
+        cgit_open_filter(&f);
         rv = write_tar_archive(args);
-
-        chk_zero(close(STDOUT_FILENO), "Closing STDOUT redirected to compressor");
-        chk_non_negative(dup2(stdout2,STDOUT_FILENO), "Restoring uncompressed STDOUT");
-        chk_zero(close(stdout2), "Closing uncompressed STDOUT");
-        chk_zero(close(rw[1]), "Closing write end of pipe in parent");
-        chk_positive(waitpid(gzpid,&status,0), "Waiting on compressor process");
-        if(! ( WIFEXITED(status) && WEXITSTATUS(status)==0 ) )
-                cgit_print_error("Failed to compress archive");
-
+        cgit_close_filter(&f);
         return rv;
 }
 
 static int write_tar_gzip_archive(struct archiver_args *args)
 {
         return write_compressed_tar_archive(args,"gzip");
 }
 
 static int write_tar_bzip2_archive(struct archiver_args *args)
 {
         return write_compressed_tar_archive(args,"bzip2");
 }
diff --git a/ui-summary.c b/ui-summary.c
index ede4a62..a2c018e 100644
--- a/ui-summary.c
+++ b/ui-summary.c
@@ -57,20 +57,36 @@ void cgit_print_summary()
         if (ctx.cfg.summary_log > 0) {
                 html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
                 cgit_print_log(ctx.qry.head, 0, ctx.cfg.summary_log, NULL,
                                NULL, NULL, 0);
         }
         if (ctx.repo->clone_url)
                 print_urls(ctx.repo->clone_url, NULL);
         else if (ctx.cfg.clone_prefix)
                 print_urls(ctx.cfg.clone_prefix, ctx.repo->url);
         html("</table>");
 }
 
-void cgit_print_repo_readme()
+void cgit_print_repo_readme(char *path)
 {
-        if (ctx.repo->readme) {
-                html("<div id='summary'>");
-                html_include(ctx.repo->readme);
-                html("</div>");
-        }
+        char *slash, *tmp;
+
+        if (!ctx.repo->readme)
+                return;
+
+        if (path) {
+                slash = strrchr(ctx.repo->readme, '/');
+                if (!slash)
+                        return;
+                tmp = xmalloc(slash - ctx.repo->readme + 1 + strlen(path) + 1);
+                strncpy(tmp, ctx.repo->readme, slash - ctx.repo->readme + 1);
+                strcpy(tmp + (slash - ctx.repo->readme + 1), path);
+        } else
+                tmp = ctx.repo->readme;
+        html("<div id='summary'>");
+        if (ctx.repo->about_filter)
+                cgit_open_filter(ctx.repo->about_filter);
+        html_include(tmp);
+        if (ctx.repo->about_filter)
+                cgit_close_filter(ctx.repo->about_filter);
+        html("</div>");
 }
diff --git a/ui-summary.h b/ui-summary.h
index 3e13039..c01f560 100644
--- a/ui-summary.h
+++ b/ui-summary.h
@@ -1,7 +1,7 @@
 #ifndef UI_SUMMARY_H
 #define UI_SUMMARY_H
 
 extern void cgit_print_summary();
-extern void cgit_print_repo_readme();
+extern void cgit_print_repo_readme(char *path);
 
 #endif /* UI_SUMMARY_H */
diff --git a/ui-tag.c b/ui-tag.c
index 8c263ab..c2d72af 100644
--- a/ui-tag.c
+++ b/ui-tag.c
@@ -58,25 +58,25 @@ void cgit_print_tag(char *revname)
                 html("<table class='commit-info'>\n");
                 htmlf("<tr><td>Tag name</td><td>");
                 html_txt(revname);
                 htmlf(" (%s)</td></tr>\n", sha1_to_hex(sha1));
                 if (info->tagger_date > 0) {
                         html("<tr><td>Tag date</td><td>");
                         cgit_print_date(info->tagger_date, FMT_LONGDATE, ctx.cfg.local_time);
                         html("</td></tr>\n");
                 }
                 if (info->tagger) {
                         html("<tr><td>Tagged by</td><td>");
                         html_txt(info->tagger);
-                        if (info->tagger_email) {
+                        if (info->tagger_email && !ctx.cfg.noplainemail) {
                                 html(" ");
                                 html_txt(info->tagger_email);
                         }
                         html("</td></tr>\n");
                 }
                 html("<tr><td>Tagged object</td><td>");
                 cgit_object_link(tag->tagged);
                 html("</td></tr>\n");
                 html("</table>\n");
                 print_tag_content(info->msg);
         } else {
                 html("<table class='commit-info'>\n");
diff --git a/ui-tree.c b/ui-tree.c
index 553dbaa..c608754 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -6,31 +6,41 @@
  *   (see COPYING for full license text)
  */
 
 #include <ctype.h>
 #include "cgit.h"
 #include "html.h"
 #include "ui-shared.h"
 
 char *curr_rev;
 char *match_path;
 int header = 0;
 
-static void print_text_buffer(char *buf, unsigned long size)
+static void print_text_buffer(const char *name, char *buf, unsigned long size)
 {
         unsigned long lineno, idx;
         const char *numberfmt =
                 "<a class='no' id='n%1$d' name='n%1$d' href='#n%1$d'>%1$d</a>\n";
 
         html("<table summary='blob content' class='blob'>\n");
+        if (ctx.repo->source_filter) {
+                html("<tr><td class='lines'><pre><code>");
+                ctx.repo->source_filter->argv[1] = xstrdup(name);
+                cgit_open_filter(ctx.repo->source_filter);
+                write(STDOUT_FILENO, buf, size);
+                cgit_close_filter(ctx.repo->source_filter);
+                html("</code></pre></td></tr></table>\n");
+                return;
+        }
+
         html("<tr><td class='linenumbers'><pre>");
         idx = 0;
         lineno = 0;
 
         if (size) {
                 htmlf(numberfmt, ++lineno);
                 while(idx < size - 1) { // skip absolute last newline
                         if (buf[idx] == '\n')
                                 htmlf(numberfmt, ++lineno);
                         idx++;
                 }
         }
@@ -56,25 +66,25 @@ static void print_binary_buffer(char *buf, unsigned long size)
                               idx == 16 ? 4 : 1, "",
                               buf[idx] & 0xff);
                 html(" </td><td class='hex'>");
                 for (idx = 0; idx < ROWLEN && ofs + idx < size; idx++)
                         ascii[idx] = isgraph(buf[idx]) ? buf[idx] : '.';
                 ascii[idx] = '\0';
                 html_txt(ascii);
                 html("</td></tr>\n");
         }
         html("</table>\n");
 }
 
-static void print_object(const unsigned char *sha1, char *path)
+static void print_object(const unsigned char *sha1, char *path, const char *basename)
 {
         enum object_type type;
         char *buf;
         unsigned long size;
 
         type = sha1_object_info(sha1, &size);
         if (type == OBJ_BAD) {
                 cgit_print_error(fmt("Bad object name: %s",
                                      sha1_to_hex(sha1)));
                 return;
         }
 
@@ -84,34 +94,35 @@ static void print_object(const unsigned char *sha1, char *path)
                                      sha1_to_hex(sha1)));
                 return;
         }
 
         html(" (");
         cgit_plain_link("plain", NULL, NULL, ctx.qry.head,
                         curr_rev, path);
         htmlf(")<br/>blob: %s\n", sha1_to_hex(sha1));
 
         if (buffer_is_binary(buf, size))
                 print_binary_buffer(buf, size);
         else
-                print_text_buffer(buf, size);
+                print_text_buffer(basename, buf, size);
 }
 
 
 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
                    const char *pathname, unsigned int mode, int stage,
                    void *cbdata)
 {
         char *name;
         char *fullpath;
+        char *class;
         enum object_type type;
         unsigned long size = 0;
 
         name = xstrdup(pathname);
         fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
                        ctx.qry.path ? "/" : "", name);
 
         if (!S_ISGITLINK(mode)) {
                 type = sha1_object_info(sha1, &size);
                 if (type == OBJ_BAD) {
                         htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
                               name,
@@ -126,25 +137,30 @@ static int ls_item(const unsigned char *sha1, const char *base, int baselen,
         if (S_ISGITLINK(mode)) {
                 htmlf("<a class='ls-mod' href='");
                 html_attr(fmt(ctx.repo->module_link,
                               name,
                               sha1_to_hex(sha1)));
                 html("'>");
                 html_txt(name);
                 html("</a>");
         } else if (S_ISDIR(mode)) {
                 cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
                                curr_rev, fullpath);
         } else {
-                cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
+                class = strrchr(name, '.');
+                if (class != NULL) {
+                        class = fmt("ls-blob %s", class + 1);
+                } else
+                        class = "ls-blob";
+                cgit_tree_link(name, NULL, class, ctx.qry.head,
                                curr_rev, fullpath);
         }
         htmlf("</td><td class='ls-size'>%li</td>", size);
 
         html("<td>");
         cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
                       fullpath, 0, NULL, NULL, ctx.qry.showmsg);
         if (ctx.repo->max_stats)
                 cgit_stats_link("stats", NULL, "button", ctx.qry.head,
                                 fullpath);
         html("</td></tr>\n");
         free(name);
@@ -204,25 +220,25 @@ static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
                 html("/");
                 cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
                                curr_rev, buffer);
 
                 if (strcmp(match_path, buffer))
                         return READ_TREE_RECURSIVE;
 
                 if (S_ISDIR(mode)) {
                         state = 1;
                         ls_head();
                         return READ_TREE_RECURSIVE;
                 } else {
-                        print_object(sha1, buffer);
+                        print_object(sha1, buffer, pathname);
                         return 0;
                 }
         }
         ls_item(sha1, base, baselen, pathname, mode, stage, NULL);
         return 0;
 }
 
 
 /*
  * Show a tree or a blob
  *   rev:  the commit pointing at the root tree object
  *   path: path to tree or blob