Enable url=value querystring parameter

This makes is possible to use repo-urls like '/pub/scm/git/git.git' and
even add path specifications, like '/pub/scm/git/git.git/log/documentation'.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/parsing.c b/parsing.c
index 36b0f0c..a028625 100644
--- a/parsing.c
+++ b/parsing.c
@@ -71,128 +71,171 @@ int cgit_read_config(const char *filename, configfn fn)
         FILE *f;
 
         /* cancel deeply nested include-commands */
         if (nesting > 8)
                 return -1;
         if (!(f = fopen(filename, "r")))
                 return -1;
         nesting++;
         while((len = read_config_line(f, line, &value, sizeof(line))) > 0)
                 (*fn)(line, value);
         nesting--;
         fclose(f);
         return 0;
 }
 
 char *convert_query_hexchar(char *txt)
 {
         int d1, d2;
         if (strlen(txt) < 3) {
                 *txt = '\0';
                 return txt-1;
         }
         d1 = hextoint(*(txt+1));
         d2 = hextoint(*(txt+2));
         if (d1<0 || d2<0) {
                 strcpy(txt, txt+3);
                 return txt-1;
         } else {
                 *txt = d1 * 16 + d2;
                 strcpy(txt+1, txt+3);
                 return txt;
         }
 }
 
 int cgit_parse_query(char *txt, configfn fn)
 {
         char *t, *value = NULL, c;
 
         if (!txt)
                 return 0;
 
         t = txt = xstrdup(txt);
 
         while((c=*t) != '\0') {
                 if (c=='=') {
                         *t = '\0';
                         value = t+1;
                 } else if (c=='+') {
                         *t = ' ';
                 } else if (c=='%') {
                         t = convert_query_hexchar(t);
                 } else if (c=='&') {
                         *t = '\0';
                         (*fn)(txt, value);
                         txt = t+1;
                         value = NULL;
                 }
                 t++;
         }
         if (t!=txt)
                 (*fn)(txt, value);
         return 0;
 }
 
+/*
+ * url syntax: [repo ['/' cmd [ '/' path]]]
+ *   repo: any valid repo url, may contain '/'
+ *   cmd:  log | commit | diff | tree | view | blob | snapshot
+ *   path: any valid path, may contain '/'
+ *
+ */
+void cgit_parse_url(const char *url)
+{
+        char *cmd, *p;
+
+        cgit_repo = NULL;
+        if (!url || url[0] == '\0')
+                return;
+
+        cgit_repo = cgit_get_repoinfo(url);
+        if (cgit_repo) {
+                cgit_query_repo = cgit_repo->url;
+                return;
+        }
+
+        cmd = strchr(url, '/');
+        while (!cgit_repo && cmd) {
+                cmd[0] = '\0';
+                cgit_repo = cgit_get_repoinfo(url);
+                if (cgit_repo == NULL) {
+                        cmd[0] = '/';
+                        cmd = strchr(cmd + 1, '/');
+                        continue;
+                }
+
+                cgit_query_repo = cgit_repo->url;
+                p = strchr(cmd + 1, '/');
+                if (p) {
+                        p[0] = '\0';
+                        cgit_query_path = xstrdup(p + 1);
+                }
+                cgit_cmd = cgit_get_cmd_index(cmd + 1);
+                cgit_query_page = xstrdup(cmd + 1);
+                return;
+        }
+}
+
 char *substr(const char *head, const char *tail)
 {
         char *buf;
 
         buf = xmalloc(tail - head + 1);
         strncpy(buf, head, tail - head);
         buf[tail - head] = '\0';
         return buf;
 }
 
 struct commitinfo *cgit_parse_commit(struct commit *commit)
 {
         struct commitinfo *ret;
         char *p = commit->buffer, *t = commit->buffer;
 
         ret = xmalloc(sizeof(*ret));
         ret->commit = commit;
         ret->author = NULL;
         ret->author_email = NULL;
         ret->committer = NULL;
         ret->committer_email = NULL;
         ret->subject = NULL;
         ret->msg = NULL;
 
         if (strncmp(p, "tree ", 5))
                 die("Bad commit: %s", sha1_to_hex(commit->object.sha1));
         else
                 p += 46; // "tree " + hex[40] + "\n"
 
         while (!strncmp(p, "parent ", 7))
                 p += 48; // "parent " + hex[40] + "\n"
 
         if (!strncmp(p, "author ", 7)) {
                 p += 7;
                 t = strchr(p, '<') - 1;
                 ret->author = substr(p, t);
                 p = t;
                 t = strchr(t, '>') + 1;
                 ret->author_email = substr(p, t);
                 ret->author_date = atol(++t);
                 p = strchr(t, '\n') + 1;
         }
 
         if (!strncmp(p, "committer ", 9)) {
                 p += 9;
                 t = strchr(p, '<') - 1;
                 ret->committer = substr(p, t);
                 p = t;
                 t = strchr(t, '>') + 1;
                 ret->committer_email = substr(p, t);
                 ret->committer_date = atol(++t);
                 p = strchr(t, '\n') + 1;
         }
 
         while (*p == '\n')
                 p = strchr(p, '\n') + 1;
 
         t = strchr(p, '\n');
         if (t && *t) {
                 ret->subject = substr(p, t);
                 p = t + 1;
 
                 while (*p == '\n')
                         p = strchr(p, '\n') + 1;