diff mbox series

[FFmpeg-devel,v2] avformat/url: check url root node when rel include double dot

Message ID 20200427105147.98947-1-lq@chinaffmpeg.org
State Superseded
Headers show
Series [FFmpeg-devel,v2] avformat/url: check url root node when rel include double dot | expand

Checks

Context Check Description
andriy/default pending
andriy/make success Make finished
andriy/make_fate fail Make fate failed

Commit Message

Liu Steven April 27, 2020, 10:51 a.m. UTC
fix ticket: 8625
and add testcase into url for double dot corner case

Suggested-by: Martin Storsjö <martin@martin.st>
Signed-off-by: Steven Liu <liuqi05@kuaishou.com>
---
 libavformat/tests/url.c |  3 +++
 libavformat/url.c       | 21 +++++++++++++++++++--
 2 files changed, 22 insertions(+), 2 deletions(-)

Comments

Nicolas George April 27, 2020, 10:54 a.m. UTC | #1
Steven Liu (12020-04-27):
> and add testcase into url for double dot corner case

Did you run FATE?

Regards,
Liu Steven April 27, 2020, 11:01 a.m. UTC | #2
> 2020年4月27日 下午6:54,Nicolas George <george@nsup.org> 写道:
> 
> Steven Liu (12020-04-27):
>> and add testcase into url for double dot corner case
> 
> Did you run FATE?
Haha, Patchwork returned it, will fix that.
> 
> Regards,
> 
> -- 
>  Nicolas George

Thanks

Steven Liu
Nicolas George April 27, 2020, 11:02 a.m. UTC | #3
Steven Liu (12020-04-27):
> Haha, Patchwork returned it, will fix that.

Please run FATE yourself before submitting patches.

Regards,
Lance Wang April 27, 2020, 11:04 a.m. UTC | #4
On Mon, Apr 27, 2020 at 06:51:47PM +0800, Steven Liu wrote:
> fix ticket: 8625
> and add testcase into url for double dot corner case

I think you need update ./tests/ref/fate/url also.

 make fate-url SAMPLES=../fate-suite

> 
> Suggested-by: Martin Storsjö <martin@martin.st>
> Signed-off-by: Steven Liu <liuqi05@kuaishou.com>
> ---
>  libavformat/tests/url.c |  3 +++
>  libavformat/url.c       | 21 +++++++++++++++++++--
>  2 files changed, 22 insertions(+), 2 deletions(-)
> 
> diff --git a/libavformat/tests/url.c b/libavformat/tests/url.c
> index 5e484fd428..02d0d59aa8 100644
> --- a/libavformat/tests/url.c
> +++ b/libavformat/tests/url.c
> @@ -56,6 +56,7 @@ int main(void)
>      test("/foo/bar", "baz");
>      test("/foo/bar", "../baz");
>      test("/foo/bar", "/baz");
> +    test("/foo/bar", "../../../baz");
>      test("http://server/foo/", "baz");
>      test("http://server/foo/bar", "baz");
>      test("http://server/foo/", "../baz");
> @@ -65,6 +66,8 @@ int main(void)
>      test("http://server/foo/bar?param=value/with/slashes", "/baz");
>      test("http://server/foo/bar?param&otherparam", "?someparam");
>      test("http://server/foo/bar", "//other/url");
> +    test("http://server/foo/bar", "../../../../../other/url");
> +    test("http://server/foo/bar", "/../../../../../other/url");
>  
>      printf("\nTesting av_url_split:\n");
>      test2("/foo/bar");
> diff --git a/libavformat/url.c b/libavformat/url.c
> index 596fb49cfc..0aa50ab9a7 100644
> --- a/libavformat/url.c
> +++ b/libavformat/url.c
> @@ -81,6 +81,7 @@ void ff_make_absolute_url(char *buf, int size, const char *base,
>                            const char *rel)
>  {
>      char *sep, *path_query;
> +    char *root, *p;
>      /* Absolute path, relative to the current server */
>      if (base && strstr(base, "://") && rel[0] == '/') {
>          if (base != buf)
> @@ -120,16 +121,32 @@ void ff_make_absolute_url(char *buf, int size, const char *base,
>          return;
>      }
>  
> +    root = p = buf;
> +    /* Get the path root of the url which start by "://" */
> +    if (p && strstr(p, "://")) {
> +        sep = strstr(p, "://");
> +        if (sep) {
> +            sep += 3;
> +            root = strchr(sep, '/');
> +        }
> +    }
> +
>      /* Remove the file name from the base url */
>      sep = strrchr(buf, '/');
> +    if (sep <= root)
> +        sep = root;
> +
>      if (sep)
>          sep[1] = '\0';
>      else
>          buf[0] = '\0';
>      while (av_strstart(rel, "../", NULL) && sep) {
>          /* Remove the path delimiter at the end */
> -        sep[0] = '\0';
> -        sep = strrchr(buf, '/');
> +        if (sep > root) {
> +            sep[0] = '\0';
> +            sep = strrchr(buf, '/');
> +        }
> +
>          /* If the next directory name to pop off is "..", break here */
>          if (!strcmp(sep ? &sep[1] : buf, "..")) {
>              /* Readd the slash we just removed */
> -- 
> 2.25.0
> 
> 
> 
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> 
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
Nicolas George April 27, 2020, 11:05 a.m. UTC | #5
Nicolas George (12020-04-27):
> Please run FATE yourself before submitting patches.

And please heed reply-to headers. It's already annoying enough to have
you twice in Cc, it's REALLY annoying to get CCed when I explicitly
asked not to in the proper technical way.

(Seriously, people, if you want to use crappy e-mail systems, do so, but
do not annoy third parties with bogus workardounds.)

Regards,
Liu Steven April 27, 2020, 11:05 a.m. UTC | #6
> 2020年4月27日 下午7:04,lance.lmwang@gmail.com 写道:
> 
> On Mon, Apr 27, 2020 at 06:51:47PM +0800, Steven Liu wrote:
>> fix ticket: 8625
>> and add testcase into url for double dot corner case
> 
> I think you need update ./tests/ref/fate/url also.
> 
> make fate-url SAMPLES=../fate-suite
Yes, the fate server have report the result to me.
> 
>> 
>> Suggested-by: Martin Storsjö <martin@martin.st>
>> Signed-off-by: Steven Liu <liuqi05@kuaishou.com>
>> ---
>> libavformat/tests/url.c |  3 +++
>> libavformat/url.c       | 21 +++++++++++++++++++--
>> 2 files changed, 22 insertions(+), 2 deletions(-)
>> 
>> diff --git a/libavformat/tests/url.c b/libavformat/tests/url.c
>> index 5e484fd428..02d0d59aa8 100644
>> --- a/libavformat/tests/url.c
>> +++ b/libavformat/tests/url.c
>> @@ -56,6 +56,7 @@ int main(void)
>>     test("/foo/bar", "baz");
>>     test("/foo/bar", "../baz");
>>     test("/foo/bar", "/baz");
>> +    test("/foo/bar", "../../../baz");
>>     test("http://server/foo/", "baz");
>>     test("http://server/foo/bar", "baz");
>>     test("http://server/foo/", "../baz");
>> @@ -65,6 +66,8 @@ int main(void)
>>     test("http://server/foo/bar?param=value/with/slashes", "/baz");
>>     test("http://server/foo/bar?param&otherparam", "?someparam");
>>     test("http://server/foo/bar", "//other/url");
>> +    test("http://server/foo/bar", "../../../../../other/url");
>> +    test("http://server/foo/bar", "/../../../../../other/url");
>> 
>>     printf("\nTesting av_url_split:\n");
>>     test2("/foo/bar");
>> diff --git a/libavformat/url.c b/libavformat/url.c
>> index 596fb49cfc..0aa50ab9a7 100644
>> --- a/libavformat/url.c
>> +++ b/libavformat/url.c
>> @@ -81,6 +81,7 @@ void ff_make_absolute_url(char *buf, int size, const char *base,
>>                           const char *rel)
>> {
>>     char *sep, *path_query;
>> +    char *root, *p;
>>     /* Absolute path, relative to the current server */
>>     if (base && strstr(base, "://") && rel[0] == '/') {
>>         if (base != buf)
>> @@ -120,16 +121,32 @@ void ff_make_absolute_url(char *buf, int size, const char *base,
>>         return;
>>     }
>> 
>> +    root = p = buf;
>> +    /* Get the path root of the url which start by "://" */
>> +    if (p && strstr(p, "://")) {
>> +        sep = strstr(p, "://");
>> +        if (sep) {
>> +            sep += 3;
>> +            root = strchr(sep, '/');
>> +        }
>> +    }
>> +
>>     /* Remove the file name from the base url */
>>     sep = strrchr(buf, '/');
>> +    if (sep <= root)
>> +        sep = root;
>> +
>>     if (sep)
>>         sep[1] = '\0';
>>     else
>>         buf[0] = '\0';
>>     while (av_strstart(rel, "../", NULL) && sep) {
>>         /* Remove the path delimiter at the end */
>> -        sep[0] = '\0';
>> -        sep = strrchr(buf, '/');
>> +        if (sep > root) {
>> +            sep[0] = '\0';
>> +            sep = strrchr(buf, '/');
>> +        }
>> +
>>         /* If the next directory name to pop off is "..", break here */
>>         if (!strcmp(sep ? &sep[1] : buf, "..")) {
>>             /* Readd the slash we just removed */
>> -- 
>> 2.25.0
>> 
>> 
>> 
>> _______________________________________________
>> ffmpeg-devel mailing list
>> ffmpeg-devel@ffmpeg.org
>> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>> 
>> To unsubscribe, visit link above, or email
>> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
> 
> -- 
> Thanks,
> Limin Wang
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> 
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".

Thanks

Steven Liu
Liu Steven April 27, 2020, 11:07 a.m. UTC | #7
> 2020年4月27日 下午7:05,Nicolas George <george@nsup.org> 写道:
> 
> Nicolas George (12020-04-27):
>> Please run FATE yourself before submitting patches.
> 
> And please heed reply-to headers. It's already annoying enough to have
> you twice in Cc, it's REALLY annoying to get CCed when I explicitly
> asked not to in the proper technical way.
> 
> (Seriously, people, if you want to use crappy e-mail systems, do so, but
> do not annoy third parties with bogus workardounds.)
Do you mean you don’t want in the cc list?
I think can remove you from cc list if you don’t want in it.
> 
> Regards,
> 
> -- 
>  Nicolas George

Thanks

Steven Liu
Nicolas George April 27, 2020, 11:10 a.m. UTC | #8
Steven Liu (12020-04-27):
> Do you mean you don’t want in the cc list?
> I think can remove you from cc list if you don’t want in it.

I want you to do exactly as the headers direct you to do.

Regards,
Liu Steven April 27, 2020, 11:11 a.m. UTC | #9
> 2020年4月27日 下午7:10,Nicolas George <george@nsup.org> 写道:
> 
> Steven Liu (12020-04-27):
>> Do you mean you don’t want in the cc list?
>> I think can remove you from cc list if you don’t want in it.
> 
> I want you to do exactly as the headers direct you to do.
Inner peace.



Thanks

Steven Liu
diff mbox series

Patch

diff --git a/libavformat/tests/url.c b/libavformat/tests/url.c
index 5e484fd428..02d0d59aa8 100644
--- a/libavformat/tests/url.c
+++ b/libavformat/tests/url.c
@@ -56,6 +56,7 @@  int main(void)
     test("/foo/bar", "baz");
     test("/foo/bar", "../baz");
     test("/foo/bar", "/baz");
+    test("/foo/bar", "../../../baz");
     test("http://server/foo/", "baz");
     test("http://server/foo/bar", "baz");
     test("http://server/foo/", "../baz");
@@ -65,6 +66,8 @@  int main(void)
     test("http://server/foo/bar?param=value/with/slashes", "/baz");
     test("http://server/foo/bar?param&otherparam", "?someparam");
     test("http://server/foo/bar", "//other/url");
+    test("http://server/foo/bar", "../../../../../other/url");
+    test("http://server/foo/bar", "/../../../../../other/url");
 
     printf("\nTesting av_url_split:\n");
     test2("/foo/bar");
diff --git a/libavformat/url.c b/libavformat/url.c
index 596fb49cfc..0aa50ab9a7 100644
--- a/libavformat/url.c
+++ b/libavformat/url.c
@@ -81,6 +81,7 @@  void ff_make_absolute_url(char *buf, int size, const char *base,
                           const char *rel)
 {
     char *sep, *path_query;
+    char *root, *p;
     /* Absolute path, relative to the current server */
     if (base && strstr(base, "://") && rel[0] == '/') {
         if (base != buf)
@@ -120,16 +121,32 @@  void ff_make_absolute_url(char *buf, int size, const char *base,
         return;
     }
 
+    root = p = buf;
+    /* Get the path root of the url which start by "://" */
+    if (p && strstr(p, "://")) {
+        sep = strstr(p, "://");
+        if (sep) {
+            sep += 3;
+            root = strchr(sep, '/');
+        }
+    }
+
     /* Remove the file name from the base url */
     sep = strrchr(buf, '/');
+    if (sep <= root)
+        sep = root;
+
     if (sep)
         sep[1] = '\0';
     else
         buf[0] = '\0';
     while (av_strstart(rel, "../", NULL) && sep) {
         /* Remove the path delimiter at the end */
-        sep[0] = '\0';
-        sep = strrchr(buf, '/');
+        if (sep > root) {
+            sep[0] = '\0';
+            sep = strrchr(buf, '/');
+        }
+
         /* If the next directory name to pop off is "..", break here */
         if (!strcmp(sep ? &sep[1] : buf, "..")) {
             /* Readd the slash we just removed */